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version 1.109, 2001/12/11 02:18:13
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version 1.232, 2004/08/20 15:45:51
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| # |
# |
| # http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
| # |
# |
| # YEAR=2001 |
############################################################################### |
| # 3/8, 3/12, 3/13, 3/14, 3/15, 3/19 Scott Harrison |
############################################################################### |
| # 3/20, 3/21, 3/22, 3/26, 3/27, 4/2, 8/15, 8/24, 8/25 Scott Harrison |
|
| # 10/12,10/14,10/15,10/16,11/28,11/29 Scott Harrison |
=pod |
| # |
|
| ### |
=head1 NAME |
| |
|
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lonsearchcat - LONCAPA Search Interface |
| |
|
| |
=head1 SYNOPSIS |
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|
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Search interface to LON-CAPAs digital library |
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|
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=head1 DESCRIPTION |
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|
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This module enables searching for a distributed browseable catalog. |
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|
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This is part of the LearningOnline Network with CAPA project |
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described at http://www.lon-capa.org. |
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|
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lonsearchcat presents the user with an interface to search the LON-CAPA |
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digital library. lonsearchcat also initiates the execution of a search |
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by sending the search parameters to LON-CAPA servers. The progress of |
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search (on a server basis) is displayed to the user in a separate window. |
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|
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=head1 Internals |
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|
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=over 4 |
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|
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=cut |
| |
|
| ############################################################################### |
############################################################################### |
| ## ## |
|
| ## ORGANIZATION OF THIS PERL MODULE ## |
|
| ## ## |
|
| ## 1. Modules used by this module ## |
|
| ## 2. Choices for different output views (detailed, summary, xml, etc) ## |
|
| ## 3. BEGIN block (to be run once after compilation) ## |
|
| ## 4. Handling routine called via Apache and mod_perl ## |
|
| ## 5. Other subroutines ## |
|
| ## ## |
|
| ############################################################################### |
############################################################################### |
| |
|
| package Apache::lonsearchcat; |
package Apache::lonsearchcat; |
| |
|
| # ------------------------------------------------- modules used by this module |
|
| use strict; |
use strict; |
| use Apache::Constants qw(:common); |
use Apache::Constants qw(:common :http); |
| use Apache::lonnet(); |
use Apache::lonnet(); |
| use Apache::File(); |
use Apache::File(); |
| use CGI qw(:standard); |
use CGI qw(:standard); |
| use Text::Query; |
use Text::Query; |
| use GDBM_File; |
use GDBM_File; |
| |
use Apache::loncommon(); |
| |
use Apache::lonmysql(); |
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use Apache::lonmeta; |
| |
use Apache::lonhtmlcommon; |
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use Apache::lonlocal; |
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use LONCAPA::lonmetadata(); |
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use HTML::Entities(); |
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use Parse::RecDescent; |
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use Apache::lonnavmaps; |
| |
|
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###################################################################### |
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###################################################################### |
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## |
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## Global variables |
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## |
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###################################################################### |
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###################################################################### |
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my %groupsearch_db; # Database hash used to save values for the |
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# groupsearch RAT interface. |
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my %persistent_db; # gdbm hash which holds data which is supposed to |
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# persist across calls to lonsearchcat.pm |
| |
|
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# The different view modes and associated functions |
| |
|
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my %Views = ("detailed" => \&detailed_citation_view, |
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"summary" => \&summary_view, |
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"fielded" => \&fielded_format_view, |
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"xml" => \&xml_sgml_view, |
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"compact" => \&compact_view); |
| |
|
| # ---------------------------------------- variables used throughout the module |
###################################################################### |
| |
###################################################################### |
| # -- information holders |
|
| my %language; # holds contents of language.tab |
|
| my %cprtag; # holds contents of copyright.tab |
|
| my %mimetag; # holds contents of filetypes.tab |
|
| my %hostdomains; # matches host name to host domain |
|
| my %hostips; # matches host name to host ip |
|
| my %hitcount; # stores number of hits per host |
|
| |
|
| # -- dynamically rendered interface components |
|
| my $closebutton; # button that closes the search window |
|
| my $importbutton; # button to take the selected results and go to group sorting |
|
| |
|
| # -- miscellaneous variables |
|
| my $scrout; # string that holds portions of the screen output |
|
| my $yourself; # allows for quickly limiting to oneself |
|
| my %hash; |
|
| |
|
| # ------------------------------------------ choices for different output views |
|
| # Detailed Citation View ---> sub detailed_citation_view |
|
| # Summary View ---> sub summary_view |
|
| # Fielded Format ---> sub fielded_format_view |
|
| # XML/SGML ---> sub xml_sgml_view |
|
| my $basicviewselect=<<END; |
|
| <select name='basicviewselect'> |
|
| <option value='Detailed Citation View'>Detailed Citation View</option> |
|
| <option value='Summary View'>Summary View</option> |
|
| <option value='Fielded Format'>Fielded Format</option> |
|
| <option value='XML/SGML'>XML/SGML</option> |
|
| </select> |
|
| END |
|
| my $advancedviewselect=<<END; |
|
| <select name='advancedviewselect'> |
|
| <option value='Detailed Citation View'>Detailed Citation View</option> |
|
| <option value='Summary View'>Summary View</option> |
|
| <option value='Fielded Format'>Fielded Format</option> |
|
| <option value='XML/SGML'>XML/SGML</option> |
|
| </select> |
|
| END |
|
| |
|
| # ----------------------------------------------------------------------- BEGIN |
|
| sub BEGIN { |
|
| # --------------------------------- Compute various listings of metadata values |
|
| $language{'any'}='Any language'; |
|
| { |
|
| my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}. |
|
| '/language.tab'); |
|
| while (<$fh>) { |
|
| $_=~/(\w+)\s+([\w\s\-]+)/; chomp; |
|
| $language{$1}=$2; |
|
| } |
|
| } |
|
| $cprtag{'any'}='Any copyright/distribution'; |
|
| { |
|
| my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonIncludes'}. |
|
| '/copyright.tab'); |
|
| while (<$fh>) { |
|
| $_=~/(\w+)\s+([\w\s\-]+)/; chomp; |
|
| $cprtag{$1}=$2; |
|
| } |
|
| } |
|
| $mimetag{'any'}='Any type'; |
|
| { |
|
| my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}. |
|
| '/filetypes.tab'); |
|
| while (<$fh>) { |
|
| $_=~/(\w+)\s+(\w+)\s+([\w\s\-]+)/; chomp; |
|
| $mimetag{$1}=".$1 $3"; |
|
| } |
|
| } |
|
| { |
|
| my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}. |
|
| '/hosts.tab'); |
|
| while (<$fh>) { |
|
| $_=~/(\w+?)\:(\w+?)\:(\w+?)\:(.*)/; chomp; |
|
| if ($3 eq 'library') { |
|
| $hostdomains{$1}=$2; |
|
| $hostips{$1}=$4; |
|
| } |
|
| } |
|
| } |
|
| } |
|
| |
|
| my $diropendb = ""; |
|
| my $domain = ""; |
|
| |
|
| # ----------------------------- Handling routine called via Apache and mod_perl |
|
| sub handler { |
sub handler { |
| my $r = shift; |
my $r = shift; |
| untie %hash; |
# &set_defaults(); |
| &get_unprocessed_cgi(); |
# |
| |
# set form defaults |
| $r->content_type('text/html'); |
# |
| |
my $hidden_fields;# Hold all the hidden fields used to keep track |
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# of the search system state |
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my $importbutton; # button to take the selected results and go to group |
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# sorting |
| |
my $diropendb; # The full path to the (temporary) search database file. |
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# This is set and used in &handler() and is also used in |
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# &output_results(). |
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my $bodytag; # LON-CAPA standard body tag, gotten from |
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# &Apache::lonnet::bodytag. |
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# No title, no table, just a <body> tag. |
| |
|
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my $loaderror=&Apache::lonnet::overloaderror($r); |
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if ($loaderror) { return $loaderror; } |
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# |
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my $closebutton; # button that closes the search window |
| |
# This button is different for the RAT compared to |
| |
# normal invocation. |
| |
# |
| |
&Apache::loncommon::content_type($r,'text/html'); |
| $r->send_http_header; |
$r->send_http_header; |
| return OK if $r->header_only; |
return OK if $r->header_only; |
| |
## |
| $domain = $r->dir_config('lonDefDomain'); |
## Prevent caching of the search interface window. Hopefully this means |
| |
## we will get the launch=1 passed in a little more. |
| $diropendb= "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_searchcat.db"; |
&Apache::loncommon::no_cache($r); |
| |
## |
| if ($ENV{'form.launch'} eq '1') { |
## Pick up form fields passed in the links. |
| if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT,0640)) { |
## |
| |
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, |
| |
['catalogmode','launch','acts','mode','form','element','pause', |
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'phase','persistent_db_id','table','start','show', |
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'cleargroupsort','titleelement']); |
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## |
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## The following is a trick - we wait a few seconds if asked to so |
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## the daemon running the search can get ahead of the daemon |
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## printing the results. We only need (theoretically) to do |
| |
## this once, so the pause indicator is deleted |
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## |
| |
if (exists($ENV{'form.pause'})) { |
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sleep(1); |
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delete($ENV{'form.pause'}); |
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} |
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## |
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## Initialize global variables |
| |
## |
| |
my $domain = $r->dir_config('lonDefDomain'); |
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$diropendb= "/home/httpd/perl/tmp/". |
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"$ENV{'user.domain'}_$ENV{'user.name'}_searchcat.db"; |
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# |
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# set the name of the persistent database |
| |
# $ENV{'form.persistent_db_id'} can only have digits in it. |
| |
if (! exists($ENV{'form.persistent_db_id'}) || |
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($ENV{'form.persistent_db_id'} =~ /\D/) || |
| |
($ENV{'form.launch'} eq '1')) { |
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$ENV{'form.persistent_db_id'} = time; |
| |
} |
| |
$bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1); |
| |
my $persistent_db_file = "/home/httpd/perl/tmp/". |
| |
&Apache::lonnet::escape($domain). |
| |
'_'.&Apache::lonnet::escape($ENV{'user.name'}). |
| |
'_'.$ENV{'form.persistent_db_id'}.'_persistent_search.db'; |
| |
## |
| |
&Apache::lonhtmlcommon::clear_breadcrumbs(); |
| |
if (exists($ENV{'request.course.id'}) && $ENV{'request.course.id'} ne '') { |
| |
&Apache::lonhtmlcommon::add_breadcrumb |
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({href=>'/adm/searchcat?'. |
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'catalogmode='.$ENV{'form.catalogmode'}. |
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'&launch='.$ENV{'form.launch'}. |
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'&mode='.$ENV{'form.mode'}, |
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text=>"Course and Catalog Search", |
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target=>'_top', |
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bug=>'Searching',}); |
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} else { |
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&Apache::lonhtmlcommon::add_breadcrumb |
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({href=>'/adm/searchcat?'. |
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'catalogmode='.$ENV{'form.catalogmode'}. |
| |
'&launch='.$ENV{'form.launch'}. |
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'&mode='.$ENV{'form.mode'}, |
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text=>"Catalog Search", |
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target=>'_top', |
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bug=>'Searching',}); |
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} |
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# |
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if ($ENV{'form.phase'} !~ m/(basic|adv|course)_search/) { |
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if (! &get_persistent_form_data($persistent_db_file)) { |
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if ($ENV{'form.phase'} =~ /(run_search|results)/) { |
| |
&Apache::lonnet::logthis('lonsearchcat:'. |
| |
'Unable to recover data from '. |
| |
$persistent_db_file); |
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$r->print(<<END); |
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<html> |
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<head><title>LON-CAPA Search Error</title></head> |
| |
$bodytag |
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We were unable to retrieve data describing your search. This is a serious |
| |
error and has been logged. Please alert your LON-CAPA administrator. |
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</body> |
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</html> |
| |
END |
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return OK; |
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} |
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} |
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} else { |
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&clean_up_environment(); |
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} |
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## |
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## Clear out old values from groupsearch database |
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## |
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untie %groupsearch_db if (tied(%groupsearch_db)); |
| |
if (($ENV{'form.cleargroupsort'} eq '1') || |
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(($ENV{'form.launch'} eq '1') && |
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($ENV{'form.catalogmode'} eq 'groupsearch'))) { |
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if (tie(%groupsearch_db,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) { |
| &start_fresh_session(); |
&start_fresh_session(); |
| untie %hash; |
untie %groupsearch_db; |
| } |
delete($ENV{'form.cleargroupsort'}); |
| else { |
} else { |
| $r->print('<html><head></head><body>Unable to tie hash to db '. |
# This is a stupid error to give to the user. |
| 'file</body></html>'); |
# It really tells them nothing. |
| |
$r->print('<html><head></head>'.$bodytag. |
| |
'Unable to tie hash to db file</body></html>'); |
| return OK; |
return OK; |
| } |
} |
| } |
} |
| |
## |
| # ----------------------------------- configure dynamic components of interface |
## Configure hidden fields |
| my $hidden=''; |
## |
| |
$hidden_fields = '<input type="hidden" name="persistent_db_id" value="'. |
| |
$ENV{'form.persistent_db_id'}.'" />'."\n"; |
| |
if (exists($ENV{'form.catalogmode'})) { |
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$hidden_fields .= &hidden_field('catalogmode'); |
| |
} |
| |
if (exists($ENV{'form.form'})) { |
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$hidden_fields .= &hidden_field('form'); |
| |
} |
| |
if (exists($ENV{'form.element'})) { |
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$hidden_fields .= &hidden_field('element'); |
| |
} |
| |
if (exists($ENV{'form.titleelement'})) { |
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$hidden_fields .= &hidden_field('titleelement'); |
| |
} |
| |
if (exists($ENV{'form.mode'})) { |
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$hidden_fields .= &hidden_field('mode'); |
| |
} |
| |
## |
| |
## Configure dynamic components of interface |
| |
## |
| if ($ENV{'form.catalogmode'} eq 'interactive') { |
if ($ENV{'form.catalogmode'} eq 'interactive') { |
| $hidden="<input type='hidden' name='catalogmode' value='interactive'>". |
$closebutton="<input type='button' name='close' value='CLOSE' "; |
| "\n"; |
if ($ENV{'form.phase'} =~ /(results|run_search)/) { |
| $closebutton="<input type='button' name='close' value='CLOSE' ". |
$closebutton .="onClick='parent.close()'"; |
| "onClick='self.close()'>"."\n"; |
} else { |
| } |
$closebutton .="onClick='self.close()'"; |
| elsif ($ENV{'form.catalogmode'} eq 'groupsearch') { |
} |
| $hidden=<<END; |
$closebutton .=">\n"; |
| <input type='hidden' name='catalogmode' value='groupsearch'> |
} elsif ($ENV{'form.catalogmode'} eq 'groupsearch') { |
| END |
$closebutton="<input type='button' name='close' value='CLOSE' "; |
| $closebutton=<<END; |
if ($ENV{'form.phase'} =~ /(results|run_search)/) { |
| <input type='button' name='close' value='CLOSE' onClick='self.close()'> |
$closebutton .="onClick='parent.close()'"; |
| END |
} else { |
| |
$closebutton .="onClick='self.close()'"; |
| |
} |
| |
$closebutton .= ">"; |
| $importbutton=<<END; |
$importbutton=<<END; |
| <input type='button' name='import' value='IMPORT' |
<input type='button' name='import' value='IMPORT' |
| onClick='javascript:select_group()'> |
onClick='javascript:select_group()'> |
| END |
END |
| |
} else { |
| |
$closebutton = ''; |
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$importbutton = ''; |
| |
} |
| |
## |
| |
## Sanity checks on form elements |
| |
## |
| |
if (!defined($ENV{'form.viewselect'})) { |
| |
if (($ENV{'form.catalogmode'} eq 'groupsearch') || |
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($ENV{'form.catalogmode'} eq 'interactive')) { |
| |
$ENV{'form.viewselect'} ="Compact View"; |
| |
} else { |
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$ENV{'form.viewselect'} ="Detailed Citation View"; |
| |
} |
| } |
} |
| |
$ENV{'form.phase'} = 'disp_basic' if (! exists($ENV{'form.phase'})); |
| |
$ENV{'form.show'} = 20 if (! exists($ENV{'form.show'})); |
| |
# |
| |
$ENV{'form.searchmode'} = 'basic' if (! exists($ENV{'form.searchmode'})); |
| |
if ($ENV{'form.phase'} eq 'adv_search' || |
| |
$ENV{'form.phase'} eq 'disp_adv') { |
| |
$ENV{'form.searchmode'} = 'advanced'; |
| |
} elsif ($ENV{'form.phase'} eq 'course_search') { |
| |
$ENV{'form.searchmode'} = 'course_search'; |
| |
} |
| |
# |
| |
if ($ENV{'form.searchmode'} eq 'advanced') { |
| |
&Apache::lonhtmlcommon::add_breadcrumb |
| |
({href=>'/adm/searchcat?phase=disp_adv&'. |
| |
'catalogmode='.$ENV{'form.catalogmode'}. |
| |
'&launch='.$ENV{'form.launch'}. |
| |
'&mode='.$ENV{'form.mode'}, |
| |
text=>"Advanced Search", |
| |
bug=>'Searching',}); |
| |
} elsif ($ENV{'form.searchmode'} eq 'course search') { |
| |
&Apache::lonhtmlcommon::add_breadcrumb |
| |
({href=>'/adm/searchcat?phase=disp_adv&'. |
| |
'catalogmode='.$ENV{'form.catalogmode'}. |
| |
'&launch='.$ENV{'form.launch'}. |
| |
'&mode='.$ENV{'form.mode'}, |
| |
text=>"Course Search", |
| |
bug=>'Searching',}); |
| |
} |
| |
## |
| |
## Switch on the phase |
| |
## |
| |
if ($ENV{'form.phase'} eq 'disp_basic') { |
| |
&print_basic_search_form($r,$closebutton,$hidden_fields); |
| |
} elsif ($ENV{'form.phase'} eq 'disp_adv') { |
| |
&print_advanced_search_form($r,$closebutton,$hidden_fields); |
| |
} elsif ($ENV{'form.phase'} eq 'results') { |
| |
&display_results($r,$importbutton,$closebutton,$diropendb); |
| |
} elsif ($ENV{'form.phase'} =~ /^(sort|run_search)$/) { |
| |
my ($query,$customquery,$customshow,$libraries,$pretty_string) = |
| |
&get_persistent_data($persistent_db_file, |
| |
['query','customquery','customshow', |
| |
'libraries','pretty_string']); |
| |
if ($ENV{'form.phase'} eq 'sort') { |
| |
&print_sort_form($r,$pretty_string); |
| |
} elsif ($ENV{'form.phase'} eq 'run_search') { |
| |
&run_search($r,$query,$customquery,$customshow, |
| |
$libraries,$pretty_string); |
| |
} |
| |
} elsif ($ENV{'form.phase'} eq 'course_search') { |
| |
&course_search($r); |
| |
} elsif(($ENV{'form.phase'} eq 'basic_search') || |
| |
($ENV{'form.phase'} eq 'adv_search')) { |
| |
# |
| |
# We are running a search, try to parse it |
| |
my ($query,$customquery,$customshow,$libraries) = |
| |
(undef,undef,undef,undef); |
| |
my $pretty_string; |
| |
if ($ENV{'form.phase'} eq 'basic_search') { |
| |
($query,$pretty_string,$libraries) = |
| |
&parse_basic_search($r,$closebutton,$hidden_fields); |
| |
return OK if (! defined($query)); |
| |
&make_persistent({ basicexp => $ENV{'form.basicexp'}}, |
| |
$persistent_db_file); |
| |
} else { # Advanced search |
| |
($query,$customquery,$customshow,$libraries,$pretty_string) |
| |
= &parse_advanced_search($r,$closebutton,$hidden_fields); |
| |
return OK if (! defined($query)); |
| |
} |
| |
&make_persistent({ query => $query, |
| |
customquery => $customquery, |
| |
customshow => $customshow, |
| |
libraries => $libraries, |
| |
pretty_string => $pretty_string }, |
| |
$persistent_db_file); |
| |
# |
| |
# Set up table |
| |
if (! defined(&create_results_table())) { |
| |
my $errorstring=&Apache::lonmysql::get_error(); |
| |
&Apache::lonnet::logthis('lonsearchcat.pm: Unable to create '. |
| |
'needed table. lonmysql error:'. |
| |
$errorstring); |
| |
$r->print(<<END); |
| |
<html><head><title>Search Error</title></head> |
| |
$bodytag |
| |
Unable to create table in which to store search results. |
| |
The search has been aborted. |
| |
</body> |
| |
</html> |
| |
END |
| |
return OK; |
| |
} |
| |
delete($ENV{'form.launch'}); |
| |
if (! &make_form_data_persistent($r,$persistent_db_file)) { |
| |
$r->print(<<END); |
| |
<html><head><title>Search Error</title></head> |
| |
$bodytag |
| |
Unable to properly store search information. The search has been aborted. |
| |
</body> |
| |
</html> |
| |
END |
| |
return OK; |
| |
} |
| |
## |
| |
## Print out the frames interface |
| |
## |
| |
if (defined($query)) { |
| |
&print_frames_interface($r); |
| |
} |
| |
} |
| |
return OK; |
| |
} |
| |
|
| # ------------------------------------------------------ Determine current user |
# |
| $yourself=$ENV{'user.name'}.'@'.$ENV{'user.domain'}; |
# The mechanism used to store values away and retrieve them does not |
| |
# handle the case of missing environment variables being significant. |
| |
# |
| |
# This routine sets non existant checkbox form elements to ''. |
| |
# |
| |
sub clean_up_environment { |
| |
if ($ENV{'form.phase'} eq 'basic_search') { |
| |
if (! exists($ENV{'form.related'})) { |
| |
$ENV{'form.related'} = ''; |
| |
} |
| |
if (! exists($ENV{'form.domains'})) { |
| |
$ENV{'form.domains'} = ''; |
| |
} |
| |
} elsif ($ENV{'form.phase'} eq 'adv_search') { |
| |
foreach my $field ('title','keywords','notes', |
| |
'abstract','standards','mime') { |
| |
if (! exists($ENV{'form.'.$field.'_related'})) { |
| |
$ENV{'form.'.$field.'_related'} = ''; |
| |
} |
| |
} |
| |
} elsif ($ENV{'form.phase'} eq 'course_search') { |
| |
if (! exists($ENV{'form.crsrelated'})) { |
| |
$ENV{'form.crsrelated'} = ''; |
| |
} |
| |
} |
| |
} |
| |
|
| # --- Now, depending on the interface actions, do one of three things here: |
sub hidden_field { |
| # --- 1. a basic search |
my ($name,$value) = @_; |
| # --- 2. an advanced search |
if (! defined($value)) { |
| # --- 3. output a search interface |
$value = $ENV{'form.'.$name}; |
| |
} |
| |
return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'.$/; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
## |
| |
## Course Search |
| |
## |
| |
###################################################################### |
| |
###################################################################### |
| |
{ # Scope the course search to avoid global variables |
| |
# |
| |
# Variables For course search |
| |
my %alreadyseen; |
| |
my %hash; |
| |
my $totalfound; |
| |
|
| # ----------------------------------- See if a search invocation should be done |
sub course_search { |
| if ($ENV{'form.basicsubmit'} eq 'SEARCH') { |
my $r=shift; |
| untie %hash; return &basicsearch($r,\%ENV); |
my $bodytag=&Apache::loncommon::bodytag('Course Search'); |
| |
my $pretty_search_string = '<b>'.$ENV{'form.courseexp'}.'</b>'; |
| |
my $search_string = $ENV{'form.courseexp'}; |
| |
my @New_Words; |
| |
if ($ENV{'form.crsrelated'}) { |
| |
($search_string,@New_Words) = &related_version($ENV{'form.courseexp'}); |
| |
if (@New_Words) { |
| |
$pretty_search_string .= ' '.&mt("with related words").": <b>@New_Words</b>."; |
| |
} else { |
| |
$pretty_search_string .= ' '.&mt('with no related words')."."; |
| |
} |
| } |
} |
| elsif ($ENV{'form.advancedsubmit'} eq 'SEARCH') { |
my $fulltext=$ENV{'form.crsfulltext'}; |
| untie %hash; return &advancedsearch($r,\%ENV); |
my $discuss=$ENV{'form.crsdiscuss'}; |
| |
my @allwords=($search_string,@New_Words); |
| |
$totalfound=0; |
| |
$r->print('<html><head><title>LON-CAPA Course Search</title></head>'. |
| |
$bodytag.'<hr /><center><font size="+2" face="arial">'.$pretty_search_string.'</font></center><hr /><b>'.&mt('Course content').':</b><br />'); |
| |
$r->rflush(); |
| |
# ======================================================= Go through the course |
| |
undef %alreadyseen; |
| |
%alreadyseen=(); |
| |
my $c=$r->connection; |
| |
if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.".db", |
| |
&GDBM_READER(),0640)) { |
| |
foreach (keys %hash) { |
| |
if ($c->aborted()) { last; } |
| |
if (($_=~/^src\_(.+)$/) && (!$alreadyseen{$hash{$_}})) { |
| |
&checkonthis($r,$hash{$_},0,$hash{'title_'.$1},$fulltext, |
| |
@allwords); |
| |
} |
| |
} |
| |
untie(%hash); |
| |
} |
| |
unless ($totalfound) { |
| |
$r->print('<p>'.&mt('No matches found in resources').'.</p>'); |
| } |
} |
| |
|
| # ----------------------------- Else, begin building search interface to output |
# Check discussions if requested |
| $scrout=''; # building a part of screen output |
if ($discuss) { |
| $scrout.=&searchphrasefield('Limit by title','title', |
my $totaldiscussions = 0; |
| $ENV{'form.title'}); |
$r->print('<br /><br /><b>'.&mt('Discussion postings').':</b><br />'); |
| |
my $navmap = Apache::lonnavmaps::navmap->new(); |
| $scrout.=&searchphrasefield('Limit by author','author', |
my @allres=$navmap->retrieveResources(); |
| $ENV{'form.author'}); |
my %discussiontime = &Apache::lonnet::dump('discussiontimes', |
| |
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, |
| $scrout.=&searchphrasefield('Limit by subject','subject', |
$ENV{'course.'.$ENV{'request.course.id'}.'.num'}); |
| $ENV{'form.subject'}); |
foreach my $resource (@allres) { |
| |
my $result = ''; |
| $scrout.=&searchphrasefield('Limit by keywords','keywords', |
my $applies = 0; |
| $ENV{'form.keywords'}); |
my $symb = $resource->symb(); |
| |
my $ressymb = $symb; |
| |
if ($symb =~ m#(___adm/\w+/\w+)/(\d+)/bulletinboard$#) { |
| |
$ressymb = 'bulletin___'.$2.$1.'/'.$2.'/bulletinboard'; |
| |
unless ($ressymb =~ m#bulletin___\d+___adm/wrapper#) { |
| |
$ressymb=~s#(bulletin___\d+___)#$1adm/wrapper/#; |
| |
} |
| |
} |
| |
if (defined($discussiontime{$ressymb})) { |
| |
my %contrib = &Apache::lonnet::restore($ressymb,$ENV{'request.course.id'}, |
| |
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, |
| |
$ENV{'course.'.$ENV{'request.course.id'}.'.num'}); |
| |
if ($contrib{'version'}) { |
| |
for (my $id=1;$id<=$contrib{'version'};$id++) { |
| |
unless (($contrib{'hidden'}=~/\.$id\./) || ($contrib{'deleted'}=~/\.$id\./)) { |
| |
if ($contrib{$id.':subject'}) { |
| |
$result .= $contrib{$id.':subject'}; |
| |
} |
| |
if ($contrib{$id.':message'}) { |
| |
$result .= $contrib{$id.':message'}; |
| |
} |
| |
if ($contrib{$id,':attachmenturl'}) { |
| |
if ($contrib{$id,':attachmenturl'} =~ m-/([^/]+)$-) { |
| |
$result .= $1; |
| |
} |
| |
} |
| |
$applies = &checkwords($result,$applies,@allwords); |
| |
} |
| |
} |
| |
} |
| |
} |
| |
# Does this discussion apply? |
| |
if ($applies) { |
| |
my ($map,$ind,$url)=&Apache::lonnet::decode_symb($ressymb); |
| |
my $disctype = &mt('resource'); |
| |
if ($url =~ m#/bulletinboard$#) { |
| |
if ($url =~m#^adm/wrapper/adm/.*/bulletinboard$#) { |
| |
$url =~s#^adm/wrapper##; |
| |
} |
| |
$disctype = &mt('bulletin board'); |
| |
} else { |
| |
$url = '/res/'.$url; |
| |
} |
| |
if ($url =~ /\?/) { |
| |
$url .= '&symb='; |
| |
} else { |
| |
$url .= '?symb='; |
| |
} |
| |
$url .= &Apache::lonnet::escape($resource->symb()); |
| |
my $title = $resource->compTitle(); |
| |
$r->print('<br /><a href="'.$url.'" target="cat">'. |
| |
($title?$title:$url).'</a> - '.$disctype.'<br />'); |
| |
$totaldiscussions++; |
| |
} else { |
| |
$r->print(' .'); |
| |
} |
| |
} |
| |
unless ($totaldiscussions) { |
| |
$r->print('<p>'.&mt('No matches found in postings').'.</p>'); |
| |
} |
| |
} |
| |
|
| |
# =================================================== Done going through course |
| |
$r->print('</body></html>'); |
| |
} |
| |
|
| $scrout.=&searchphrasefield('Limit by URL','url', |
# =============================== This pulls up a resource and its dependencies |
| $ENV{'form.url'}); |
|
| |
|
| # $scrout.=&searchphrasefield('Limit by version','version', |
sub checkonthis { |
| # $ENV{'form.version'}); |
my ($r,$url,$level,$title,$fulltext,@allwords)=@_; |
| |
$alreadyseen{$url}=1; |
| |
$r->rflush(); |
| |
my $result=&Apache::lonnet::metadata($url,'title').' '. |
| |
&Apache::lonnet::metadata($url,'subject').' '. |
| |
&Apache::lonnet::metadata($url,'abstract').' '. |
| |
&Apache::lonnet::metadata($url,'keywords'); |
| |
if (($url) && ($fulltext)) { |
| |
$result.=&Apache::lonnet::ssi_body($url); |
| |
} |
| |
$result=~s/\s+/ /gs; |
| |
my $applies = 0; |
| |
$applies = &checkwords($result,$applies,@allwords); |
| |
# Does this resource apply? |
| |
if ($applies) { |
| |
$r->print('<br />'); |
| |
for (my $i=0;$i<=$level*5;$i++) { |
| |
$r->print(' '); |
| |
} |
| |
$r->print('<a href="'.$url.'" target="cat">'. |
| |
($title?$title:$url).'</a><br />'); |
| |
$totalfound++; |
| |
} elsif ($fulltext) { |
| |
$r->print(' .'); |
| |
} |
| |
$r->rflush(); |
| |
# Check also the dependencies of this one |
| |
my $dependencies= |
| |
&Apache::lonnet::metadata($url,'dependencies'); |
| |
foreach (split(/\,/,$dependencies)) { |
| |
if (($_=~/^\/res\//) && (!$alreadyseen{$_})) { |
| |
&checkonthis($r,$_,$level+1,'',$fulltext,@allwords); |
| |
} |
| |
} |
| |
} |
| |
|
| $scrout.=&searchphrasefield('Limit by notes','notes', |
sub checkwords { |
| $ENV{'form.notes'}); |
my ($result,$applies,@allwords) = @_; |
| |
foreach (@allwords) { |
| |
if ($_=~/\w/) { |
| |
if ($result=~/$_/si) { |
| |
$applies++; |
| |
} |
| |
} |
| |
} |
| |
return $applies; |
| |
} |
| |
|
| $scrout.=&searchphrasefield('Limit by abstract','abstract', |
sub untiehash { |
| $ENV{'form.abstract'}); |
if (tied(%hash)) { |
| |
untie(%hash); |
| |
} |
| |
} |
| |
|
| $ENV{'form.mime'}='notxxx' unless length($ENV{'form.mime'}); |
} # End of course search scoping |
| $scrout.=&selectbox('Limit by MIME type','mime', |
|
| $ENV{'form.mime'},%mimetag); |
|
| |
|
| $ENV{'form.language'}='any' unless length($ENV{'form.language'}); |
sub search_html_header { |
| |
my $Str = <<ENDHEADER; |
| |
<html> |
| |
<head> |
| |
<title>The LearningOnline Network with CAPA</title> |
| |
</head> |
| |
ENDHEADER |
| |
return $Str; |
| |
} |
| |
|
| $scrout.=&selectbox('Limit by language','language', |
###################################################################### |
| $ENV{'form.language'},%language); |
###################################################################### |
| |
|
| |
|
| # ------------------------------------------------ Compute date selection boxes |
=pod |
| $scrout.=<<CREATIONDATESTART; |
|
| <p> |
|
| <font color="#800000" face="helvetica"><b>LIMIT BY CREATION DATE RANGE:</b> |
|
| </font> |
|
| <br /> |
|
| between: |
|
| CREATIONDATESTART |
|
| $scrout.=&dateboxes('creationdatestart',1,1,1976, |
|
| $ENV{'form.creationdatestart_month'}, |
|
| $ENV{'form.creationdatestart_day'}, |
|
| $ENV{'form.creationdatestart_year'}, |
|
| ); |
|
| $scrout.=<<CREATIONDATEEND; |
|
| and: |
|
| CREATIONDATEEND |
|
| $scrout.=&dateboxes('creationdateend',12,31,2051, |
|
| $ENV{'form.creationdateend_month'}, |
|
| $ENV{'form.creationdateend_day'}, |
|
| $ENV{'form.creationdateend_year'}, |
|
| ); |
|
| $scrout.="</p>"; |
|
| |
|
| $scrout.=<<LASTREVISIONDATESTART; |
=item &print_basic_search_form() |
| <p> |
|
| <font color="#800000" face="helvetica"><b>LIMIT BY LAST REVISION DATE RANGE: |
|
| </b></font> |
|
| <br />between: |
|
| LASTREVISIONDATESTART |
|
| $scrout.=&dateboxes('lastrevisiondatestart',1,1,1976, |
|
| $ENV{'form.lastrevisiondatestart_month'}, |
|
| $ENV{'form.lastrevisiondatestart_day'}, |
|
| $ENV{'form.lastrevisiondatestart_year'}, |
|
| ); |
|
| $scrout.=<<LASTREVISIONDATEEND; |
|
| and: |
|
| LASTREVISIONDATEEND |
|
| $scrout.=&dateboxes('lastrevisiondateend',12,31,2051, |
|
| $ENV{'form.lastrevisiondateend_month'}, |
|
| $ENV{'form.lastrevisiondateend_day'}, |
|
| $ENV{'form.lastrevisiondateend_year'}, |
|
| ); |
|
| $scrout.='</p>'; |
|
| |
|
| $scrout.=&searchphrasefield('Limit by publisher/owner','owner', |
|
| $ENV{'form.owner'}); |
|
| |
|
| $ENV{'form.copyright'}='any' unless length($ENV{'form.copyright'}); |
|
| $scrout.=&selectbox('Limit by copyright/distribution','copyright', |
|
| $ENV{'form.copyright'},%cprtag); |
|
| |
|
| # ------------------------------------------- Compute customized metadata field |
Prints the form for the basic search. Sorry the name is so cryptic. |
| $scrout.=<<CUSTOMMETADATA; |
|
| <p> |
|
| <font color="#800000" face="helvetica"><b>LIMIT BY SPECIAL METADATA FIELDS:</b> |
|
| </font> |
|
| For resource-specific metadata, enter in an expression in the form of |
|
| <i>key</i>=<i>value</i> separated by operators such as AND, OR or NOT.<br /> |
|
| <b>Example:</b> grandmother=75 OR grandfather=85 |
|
| <br /> |
|
| CUSTOMMETADATA |
|
| $scrout.=&simpletextfield('custommetadata',$ENV{'form.custommetadata'}); |
|
| $scrout.=' <i>initial users of this system do not need to worry about this option</i>'; |
|
| |
|
| $scrout.=<<CUSTOMSHOW; |
=cut |
| <p> |
|
| <font color="#800000" face="helvetica"><b>SHOW SPECIAL METADATA FIELDS:</b> |
|
| </font> |
|
| Enter in a space-separated list of special metadata fields to show |
|
| in a fielded listing for each record result. |
|
| <br /> |
|
| CUSTOMSHOW |
|
| $scrout.=&simpletextfield('customshow',$ENV{'form.customshow'}); |
|
| $scrout.=' <i>initial users of this system do not need to worry about this option</i>'; |
|
| |
|
| # ---------------------------------------------------------------- Print screen |
###################################################################### |
| $r->print(<<ENDDOCUMENT); |
###################################################################### |
| <html> |
sub print_basic_search_form { |
| <head> |
my ($r,$closebutton,$hidden_fields) = @_; |
| <title>The LearningOnline Network with CAPA</title> |
my $result = ($ENV{'form.catalogmode'} ne 'groupsearch'); |
| <script type="text/javascript"> |
my $bodytag=&Apache::loncommon::bodytag('Search'). |
| function openhelp(val) { |
&Apache::lonhtmlcommon::breadcrumbs(undef,'Searching','Search_Basic', |
| openhelpwin=open('/adm/help/searchcat.html','helpscreen', |
undef,undef, |
| 'scrollbars=1,width=400,height=300'); |
$ENV{'form.catalogmode'} ne 'groupsearch'); |
| openhelpwin.focus(); |
my $scrout = &search_html_header().$bodytag; |
| } |
if (&Apache::lonnet::allowed('bre',$ENV{'request.role.domain'})) { |
| </script> |
# Define interface components |
| </head> |
my $userelatedwords= |
| <body bgcolor="#FFFFFF"> |
&mt('[_1] use related words', |
| <img align='right' src='/adm/lonIcons/lonlogos.gif' /> |
&Apache::lonhtmlcommon::checkbox |
| <h1>Search Catalog</h1> |
('related',$ENV{'form.related'},'related')); |
| <form method="post" action="/adm/searchcat"> |
my $onlysearchdomain= |
| $hidden |
&mt('[_1] only search domain [_2]', |
| |
&Apache::lonhtmlcommon::checkbox('domains', |
| |
$ENV{'form.domains'}, |
| |
$r->dir_config('lonDefDomain') |
| |
), |
| |
$r->dir_config('lonDefDomain') |
| |
); |
| |
my $adv_search_link = |
| |
'<a href="/adm/searchcat?'. |
| |
'phase=disp_adv&'. |
| |
'catalogmode='.$ENV{'form.catalogmode'}. |
| |
'&launch='.$ENV{'form.launch'}. |
| |
'&mode='.$ENV{'form.mode'}. |
| |
'">'.&mt('Advanced Search').'</a>'; |
| |
# |
| |
$scrout.='<form name="loncapa_search" method="post" '. |
| |
'action="/adm/searchcat">'. |
| |
'<input type="hidden" name="phase" value="basic_search" />'. |
| |
$hidden_fields; |
| |
# |
| |
$scrout .= '<center>'.$/; |
| |
if ($ENV{'request.course.id'}) { |
| |
$scrout .= '<h1>'.&mt('LON-CAPA Catalog Search').'</h1>'; |
| |
} else { |
| |
# No need to tell them they are searching |
| |
$scrout.= ('<br />'x2); |
| |
} |
| |
$scrout.='<table>'. |
| |
'<tr><td align="center" valign="top">'. |
| |
&Apache::lonhtmlcommon::textbox |
| |
('basicexp', |
| |
&HTML::Entities::encode($ENV{'form.basicexp'},'<>&"'),50 |
| |
). |
| |
'<br />'. |
| |
'<font size="-1">'.&searchhelp().'</font>'.'</td>'. |
| |
'<td><font size="-1">'. |
| |
'<nobr>'.(' 'x3).$adv_search_link.'</nobr>'.'<br />'. |
| |
'<nobr>'.(' 'x1).$userelatedwords.'</nobr>'.'<br />'. |
| |
'<nobr>'.(' 'x1).$onlysearchdomain.'</nobr>'.'<br />'. |
| |
'</font></td>'. |
| |
'</tr>'.$/; |
| |
# |
| |
$scrout .= '<tr><td align="center" colspan="2">'. |
| |
'<font size="-1">'. |
| |
'<input type="submit" name="basicsubmit" '. |
| |
'value="'.&mt('Search').'" />'. |
| |
(' 'x2).$closebutton.(' 'x2). |
| |
&viewoptions(). |
| |
'</font>'. |
| |
'</td></tr>'.$/; |
| |
$scrout .= '</table>'.$/.'</center>'.'</form>'; |
| |
} |
| |
if ($ENV{'request.course.id'}) { |
| |
my %lt=&Apache::lonlocal::texthash('srch' => 'Search', |
| |
'header' => 'Course Search', |
| |
'note' => 'Enter terms or phrases, then press "Search" below', |
| |
'use' => 'use related words', |
| |
'full' =>'fulltext search (time consuming)', |
| |
'disc' => 'search discussion postings (resources and bulletin boards)', |
| |
); |
| |
$scrout.=(<<ENDCOURSESEARCH); |
| |
<form name="loncapa_search" method="post" action="/adm/searchcat"> |
| |
<center> |
| <hr /> |
<hr /> |
| <h3>Basic Search</h3> |
<h1>$lt{'header'}</h1> |
| |
<input type="hidden" name="phase" value="course_search" /> |
| |
$hidden_fields |
| <p> |
<p> |
| Enter terms or phrases separated by search operators |
$lt{'note'}. |
| such as AND, OR, or NOT then press SEARCH below. Terms should be specific |
|
| to the title, author, subject, notes, or abstract information associated |
|
| with a resource. |
|
| <br /> |
|
| ENDDOCUMENT |
|
| $r->print(&simpletextfield('basicexp',$ENV{'form.basicexp'})); |
|
| $r->print(' '); |
|
| $r->print(&simplecheckbox('titleonly',$ENV{'form.titleonly'})); |
|
| $r->print('<font color="#800000">Title only</font> '); |
|
| # $r->print(&simplecheckbox('allversions',$ENV{'form.allversions'})); |
|
| # <font color="#800000">Search historic archives</font> |
|
| $r->print(<<ENDDOCUMENT); |
|
| <br /> |
|
| <input type="submit" name="basicsubmit" value='SEARCH' /> |
|
| <input type="reset" name="reset" value='RESET' /> |
|
| $closebutton |
|
| $basicviewselect |
|
| <input type="button" value="HELP" onClick="openhelp()" /> |
|
| </p> |
</p> |
| <hr /> |
|
| <h3>Advanced Search</h3> |
|
| $scrout |
|
| <p> |
<p> |
| <input type="submit" name="advancedsubmit" value='SEARCH' /> |
<table> |
| <input type="reset" name="reset" value='RESET' /> |
<tr><td> |
| $closebutton |
ENDCOURSESEARCH |
| $advancedviewselect |
$scrout.=' '. |
| <input type="button" value="HELP" onClick="openhelp()" /> |
&Apache::lonhtmlcommon::textbox('courseexp', |
| |
$ENV{'form.courseexp'},40); |
| |
my $crscheckbox = |
| |
&Apache::lonhtmlcommon::checkbox('crsfulltext', |
| |
$ENV{'form.crsfulltext'}); |
| |
my $relcheckbox = |
| |
&Apache::lonhtmlcommon::checkbox('crsrelated', |
| |
$ENV{'form.crsrelated'}); |
| |
my $discheckbox = |
| |
&Apache::lonhtmlcommon::checkbox('crsdiscuss', |
| |
$ENV{'form.crsrelated'}); |
| |
$scrout.=(<<ENDENDCOURSE); |
| |
</td></tr> |
| |
<tr><td>$relcheckbox $lt{'use'}</td><td></td></tr> |
| |
<tr><td>$crscheckbox $lt{'full'}</td><td></td></tr> |
| |
<tr><td>$discheckbox $lt{'disc'}</td><td></td></tr> |
| |
</table><p> |
| |
<input type="submit" name="coursesubmit" value='$lt{'srch'}' /> |
| </p> |
</p> |
| |
</center> |
| </form> |
</form> |
| |
ENDENDCOURSE |
| |
} |
| |
$scrout.=(<<ENDDOCUMENT); |
| </body> |
</body> |
| </html> |
</html> |
| ENDDOCUMENT |
ENDDOCUMENT |
| return OK; |
$r->print($scrout); |
| } |
return; |
| |
} |
| |
###################################################################### |
| |
###################################################################### |
| |
|
| # ----------- grab unprocessed CGI variables that may have been appended to URL |
=pod |
| sub get_unprocessed_cgi { |
|
| foreach (split(/&/,$ENV{'QUERY_STRING'})) { |
=item &advanced_search_form() |
| my ($name, $value) = split(/=/,$_); |
|
| $value =~ tr/+/ /; |
Prints the advanced search form. |
| $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
|
| if ($name eq 'catalogmode' or $name eq 'launch' or $name eq 'acts') { |
=cut |
| $ENV{'form.'.$name}=$value; |
|
| } |
###################################################################### |
| |
###################################################################### |
| |
sub print_advanced_search_form{ |
| |
my ($r,$closebutton,$hidden_fields) = @_; |
| |
my $bodytag=&Apache::loncommon::bodytag('Advanced Catalog Search'). |
| |
&Apache::lonhtmlcommon::breadcrumbs(undef,'Searching', |
| |
'Search_Advanced', |
| |
undef,undef, |
| |
$ENV{'form.catalogmode'} ne 'groupsearch'); |
| |
my %lt=&Apache::lonlocal::texthash('srch' => 'Search', |
| |
'reset' => 'Reset', |
| |
'help' => 'Help'); |
| |
my $advanced_buttons=<<"END"; |
| |
<input type="submit" name="advancedsubmit" value='$lt{"srch"}' /> |
| |
<input type="reset" name="reset" value='$lt{"reset"}' /> |
| |
$closebutton |
| |
END |
| |
my $scrout=&search_html_header(); |
| |
$scrout .= <<"ENDHEADER"; |
| |
$bodytag |
| |
<form method="post" action="/adm/searchcat" name="advsearch"> |
| |
<p> |
| |
$advanced_buttons |
| |
ENDHEADER |
| |
$scrout.=(' 'x2).&viewoptions().'</p>'.$hidden_fields. |
| |
'<input type="hidden" name="phase" value="adv_search" />'; |
| |
my %fields=&Apache::lonmeta::fieldnames(); |
| |
# |
| |
$scrout .= '<h3>'.&mt('Standard Metadata').'</h3>'; |
| |
$scrout .= "<table>\n"; |
| |
$scrout .= '<tr><td> </td><td colspan="2"><font size="-1">'. |
| |
(' 'x2).&searchhelp()."</font></td></tr>\n"; |
| |
my %related_word_search = |
| |
('title' => 1, |
| |
'author' => 0, |
| |
'owner' => 0, |
| |
'authorspace' => 0, |
| |
'modifyinguser'=> 0, |
| |
'keywords' => 1, |
| |
'notes' => 1, |
| |
'abstract' => 1, |
| |
'standards'=> 1, |
| |
'mime' => 1, |
| |
); |
| |
# |
| |
foreach my $field ('title','author','owner','authorspace','modifyinguser', |
| |
'keywords','notes','abstract','standards','mime') { |
| |
$scrout.='<tr><td align="right">'.&titlefield($fields{$field}).'</td><td>'. |
| |
&Apache::lonmeta::prettyinput($field, |
| |
$ENV{'form.'.$field}, |
| |
$field, |
| |
'advsearch', |
| |
$related_word_search{$field}, |
| |
'</td><td align="left">', |
| |
$ENV{'form.'.$field.'_related'}, |
| |
50); |
| |
if ($related_word_search{$field}) { |
| |
$scrout .= 'related words'; |
| |
} else { |
| |
$scrout .= '</td><td> '; |
| |
} |
| |
$scrout .= '</td></tr>'.$/; |
| } |
} |
| |
foreach my $field ('lowestgradelevel','highestgradelevel') { |
| |
$scrout.='<tr>'. |
| |
'<td align="right">'.&titlefield($fields{$field}).'</td>'. |
| |
'<td colspan="2">'. |
| |
&Apache::lonmeta::prettyinput($field, |
| |
$ENV{'form.'.$field}, |
| |
$field, |
| |
'advsearch', |
| |
0). |
| |
'</td></tr>'.$/; |
| |
} |
| |
$scrout.='<tr><td align="right">'. |
| |
&titlefield(&mt('MIME Type Category')).'</td><td colspan="2">'. |
| |
&Apache::loncommon::filecategoryselect('category', |
| |
$ENV{'form.category'}). |
| |
'</td></tr>'.$/; |
| |
$scrout.='<tr><td align="right" valign="top">'. |
| |
&titlefield(&mt('Domains')).'</td><td colspan="2">'. |
| |
&Apache::loncommon::domain_select('domains', |
| |
$ENV{'form.domains'},1). |
| |
'</td></tr>'.$/; |
| |
# |
| |
# Misc metadata |
| |
$scrout.='<tr><td align="right" valign="top">'. |
| |
&titlefield(&mt('Copyright/Distribution')).'</td><td colspan="2">'. |
| |
&Apache::lonmeta::selectbox('copyright', |
| |
$ENV{'form.copyright'}, |
| |
\&Apache::loncommon::copyrightdescription, |
| |
( undef, |
| |
&Apache::loncommon::copyrightids) |
| |
).'</td></tr>'.$/; |
| |
$scrout.='<tr><td align="right" valign="top">'. |
| |
&titlefield(&mt('Language')).'</td><td colspan="2">'. |
| |
&Apache::lonmeta::selectbox('language', |
| |
$ENV{'form.language'}, |
| |
\&Apache::loncommon::languagedescription, |
| |
('any',&Apache::loncommon::languageids) |
| |
).'</td></tr>'; |
| |
$scrout .= "</table>\n"; |
| |
# |
| |
# Dynamic metadata |
| |
$scrout .= '<h3>'.&mt('Problem Statistics').'</h3>'; |
| |
$scrout .= "<table>\n"; |
| |
$scrout .= '<tr><td> </td><td align="center">'.&mt('Minimum').'</td>'. |
| |
'<td align="center">'.&mt('Maximum').'</td></tr>'."\n"; |
| |
foreach my $statistic |
| |
({ name=>'count', |
| |
description=>'Network-wide number of accesses (hits)',}, |
| |
{ name=>'stdno', |
| |
description=> |
| |
'Total number of students who have worked on this problem',}, |
| |
{ name => 'avetries', |
| |
description=>'Average number of tries till solved',}, |
| |
{ name => 'difficulty', |
| |
description=>'Degree of difficulty',}, |
| |
{ name => 'disc', |
| |
description=>'Degree of discrimination'}) { |
| |
$scrout .= '<tr><td align="right">'. |
| |
&titlefield(&mt($statistic->{'description'})). |
| |
'</td><td align="center">'. |
| |
'<input type="text" name="'.$statistic->{'name'}.'_min" '. |
| |
'value="" size="6" />'. |
| |
'</td><td align="center">'. |
| |
'<input type="text" name="'.$statistic->{'name'}.'_max" '. |
| |
'value="" size="6" />'. |
| |
'</td></tr>'.$/; |
| |
} |
| |
$scrout .= "</table>\n"; |
| |
$scrout .= '<h3>'.&mt('Evaluation Data').'</h3>'; |
| |
$scrout .= "<table>\n"; |
| |
$scrout .= '<tr><td> </td><td align="center">'.&mt('Minimum').'</td>'. |
| |
'<td align="center">'.&mt('Maximum').'</td></tr>'."\n"; |
| |
foreach my $evaluation |
| |
( { name => 'clear', |
| |
description => 'Material presented in clear way'}, |
| |
{ name =>'depth', |
| |
description => 'Material covered with sufficient depth'}, |
| |
{ name => 'helpful', |
| |
description => 'Material is helpful'}, |
| |
{ name => 'correct', |
| |
description => 'Material appears to be correct'}, |
| |
{ name => 'technical', |
| |
description => 'Resource is technically correct'}){ |
| |
$scrout .= '<tr><td align="right">'. |
| |
&titlefield(&mt($evaluation->{'description'})). |
| |
'</td><td align="center">'. |
| |
'<input type="text" name="'.$evaluation->{'name'}.'_min" '. |
| |
'value="" size="6" />'. |
| |
'</td><td align="center">'. |
| |
'<input type="text" name="'.$evaluation->{'name'}.'_max" '. |
| |
'value="" size="6" />'. |
| |
'</td></tr>'.$/; |
| |
} |
| |
$scrout .= "</table>\n"; |
| |
# |
| |
# Creation/Modification date limits |
| |
$scrout .= '<h3>'.&mt('Creation and Modification dates').'</h3>'; |
| |
$scrout .= "\n<table>\n"; |
| |
my $cafter = |
| |
&Apache::lonhtmlcommon::date_setter('advsearch', # formname |
| |
'creationdate1', # fieldname |
| |
0, # current value |
| |
'', # special |
| |
1, # includeempty |
| |
'', # state |
| |
1, # no_hh_mm_ss |
| |
); |
| |
my $cbefore = |
| |
&Apache::lonhtmlcommon::date_setter('advsearch', # formname |
| |
'creationdate2', # fieldname |
| |
0, # current value |
| |
'', # special |
| |
1, # includeempty |
| |
'', # state |
| |
1, # no_hh_mm_ss |
| |
); |
| |
$scrout .= &mt('<tr><td align="right">Created between</td>'. |
| |
'<td>[_1]</td></tr>'. |
| |
'<tr><td align="right">and </td>'. |
| |
'<td>[_2]</td></tr>',$cafter,$cbefore); |
| |
my $lafter = |
| |
&Apache::lonhtmlcommon::date_setter('advsearch', |
| |
'revisiondate1', |
| |
0, # current value |
| |
'', # special |
| |
1, # includeempty |
| |
'', # state |
| |
1, # no_hh_mm_ss |
| |
); |
| |
my $lbefore = |
| |
&Apache::lonhtmlcommon::date_setter('advsearch', |
| |
'revisiondate2', |
| |
0, # current value |
| |
'', # special |
| |
1, # includeempty |
| |
'', # state |
| |
1, # no_hh_mm_ss |
| |
); |
| |
$scrout .= &mt('<tr><td align="right">Last modified between </td>'. |
| |
'<td>[_1]</td></tr>'. |
| |
'<tr><td align="right">and</td>'. |
| |
'<td>[_2]</td></tr>',$lafter,$lbefore); |
| |
$scrout.="</table>\n"; |
| |
$scrout.=<<ENDDOCUMENT; |
| |
$advanced_buttons |
| |
</form> |
| |
</body> |
| |
</html> |
| |
ENDDOCUMENT |
| |
$r->print($scrout); |
| |
return; |
| } |
} |
| |
|
| # ------------------------------------------------------------- make persistent |
###################################################################### |
| sub make_persistent { |
###################################################################### |
| my $persistent=''; |
|
| |
=pod |
| foreach (keys %ENV) { |
|
| if (/^form\./ && !/submit/) { |
=item &titlefield() |
| my $name=$_; |
|
| my $key=$name; |
Inputs: title text |
| $ENV{$key}=~s/\'//g; # do not mess with html field syntax |
|
| $name=~s/^form\.//; |
Outputs: titletext with font wrapper |
| $persistent.=<<END; |
|
| <input type='hidden' name='$name' value='$ENV{$key}' /> |
=cut |
| END |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub titlefield { |
| |
my $title=shift; |
| |
return $title; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item viewoptiontext() |
| |
|
| |
Inputs: codename for view option |
| |
|
| |
Outputs: displayed text |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub viewoptiontext { |
| |
my $code=shift; |
| |
my %desc=&Apache::lonlocal::texthash |
| |
('detailed' => "Detailed Citation View", |
| |
'xml' => 'XML/SGML', |
| |
'compact' => 'Compact View', |
| |
'fielded' => 'Fielded Format', |
| |
'summary' => 'Summary View'); |
| |
return $desc{$code}; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item viewoptions() |
| |
|
| |
Inputs: none |
| |
|
| |
Outputs: text for box with view options |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub viewoptions { |
| |
my $scrout; |
| |
if (! defined($ENV{'form.viewselect'})) { |
| |
$ENV{'form.viewselect'}='detailed'; |
| |
} |
| |
$scrout.=&Apache::lonmeta::selectbox('viewselect', |
| |
$ENV{'form.viewselect'}, |
| |
\&viewoptiontext, |
| |
sort(keys(%Views))); |
| |
$scrout.= ' '; |
| |
my $countselect = &Apache::lonmeta::selectbox('show', |
| |
$ENV{'form.show'}, |
| |
undef, |
| |
(10,20,50,100,1000,10000)); |
| |
$scrout .= (' 'x2).&mt('[_1] Records per Page',$countselect). |
| |
'</nobr>'.$/; |
| |
return $scrout; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item searchhelp() |
| |
|
| |
Inputs: none |
| |
|
| |
Outputs: return little blurb on how to enter searches |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub searchhelp { |
| |
return &mt('Enter words and quoted phrases'); |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &get_persistent_form_data() |
| |
|
| |
Inputs: filename of database |
| |
|
| |
Outputs: returns undef on database errors. |
| |
|
| |
This function is the reverse of &make_persistent() for form data. |
| |
Retrieve persistent data from %persistent_db. Retrieved items will have their |
| |
values unescaped. If a form value already exists in $ENV, it will not be |
| |
overwritten. Form values that are array references may have values appended |
| |
to them. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub get_persistent_form_data { |
| |
my $filename = shift; |
| |
return 0 if (! -e $filename); |
| |
return undef if (! tie(%persistent_db,'GDBM_File',$filename, |
| |
&GDBM_READER(),0640)); |
| |
# |
| |
# These make sure we do not get array references printed out as 'values'. |
| |
my %arrays_allowed = ('form.domains'=>1); |
| |
# |
| |
# Loop through the keys, looking for 'form.' |
| |
foreach my $name (keys(%persistent_db)) { |
| |
next if ($name !~ /^form./); |
| |
# Kludgification begins! |
| |
if ($name eq 'form.domains' && |
| |
$ENV{'form.searchmode'} eq 'basic' && |
| |
$ENV{'form.phase'} ne 'disp_basic') { |
| |
next; |
| |
} |
| |
# End kludge (hopefully) |
| |
next if (exists($ENV{$name})); |
| |
my @values = map { |
| |
&Apache::lonnet::unescape($_); |
| |
} split(',',$persistent_db{$name}); |
| |
next if (@values <1); |
| |
if ($arrays_allowed{$name}) { |
| |
$ENV{$name} = [@values]; |
| |
} else { |
| |
$ENV{$name} = $values[0] if ($values[0]); |
| } |
} |
| } |
} |
| return $persistent; |
untie (%persistent_db); |
| |
return 1; |
| } |
} |
| |
|
| # --------------------------------------------------------- Various form fields |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &get_persistent_data() |
| |
|
| |
Inputs: filename of database, ref to array of values to recover. |
| |
|
| |
Outputs: array of values. Returns undef on error. |
| |
|
| |
This function is the reverse of &make_persistent(); |
| |
Retrieve persistent data from %persistent_db. Retrieved items will have their |
| |
values unescaped. If the item contains commas (before unescaping), the |
| |
returned value will be an array pointer. |
| |
|
| |
=cut |
| |
|
| sub simpletextfield { |
###################################################################### |
| my ($name,$value)=@_; |
###################################################################### |
| return '<input type=text name=\''.$name. |
sub get_persistent_data { |
| '\' size=20 value=\''.$value.'\' />'; |
my $filename = shift; |
| |
my @Vars = @{shift()}; |
| |
my @Values; # Return array |
| |
return undef if (! -e $filename); |
| |
return undef if (! tie(%persistent_db,'GDBM_File',$filename, |
| |
&GDBM_READER(),0640)); |
| |
foreach my $name (@Vars) { |
| |
if (! exists($persistent_db{$name})) { |
| |
push @Values, undef; |
| |
next; |
| |
} |
| |
my @values = map { |
| |
&Apache::lonnet::unescape($_); |
| |
} split(',',$persistent_db{$name}); |
| |
if (@values <= 1) { |
| |
push @Values,$values[0]; |
| |
} else { |
| |
push @Values,\@values; |
| |
} |
| |
} |
| |
untie (%persistent_db); |
| |
return @Values; |
| } |
} |
| |
|
| sub simplecheckbox { |
###################################################################### |
| my ($name,$value)=@_; |
###################################################################### |
| my $checked=''; |
|
| $checked="CHECKED" if $value eq 'on'; |
=pod |
| return '<input type=checkbox name=\''.$name.'\' '. $checked . '>'; |
|
| |
=item &make_persistent() |
| |
|
| |
Inputs: Hash of values to save, filename of persistent database. |
| |
|
| |
Store variables away to the %persistent_db. |
| |
Values will be escaped. Values that are array pointers will have their |
| |
elements escaped and concatenated in a comma separated string. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub make_persistent { |
| |
my %save = %{shift()}; |
| |
my $filename = shift; |
| |
return undef if (! tie(%persistent_db,'GDBM_File', |
| |
$filename,&GDBM_WRCREAT(),0640)); |
| |
foreach my $name (keys(%save)) { |
| |
my @values = (ref($save{$name}) ? @{$save{$name}} : ($save{$name})); |
| |
# We handle array references, but not recursively. |
| |
my $store = join(',', map { &Apache::lonnet::escape($_); } @values ); |
| |
$persistent_db{$name} = $store; |
| |
} |
| |
untie(%persistent_db); |
| |
return 1; |
| } |
} |
| |
|
| sub searchphrasefield { |
###################################################################### |
| my ($title,$name,$value)=@_; |
###################################################################### |
| my $instruction=<<END; |
|
| Enter terms or phrases separated by search operators such |
=pod |
| as AND, OR, or NOT. |
|
| END |
=item &make_form_data_persistent() |
| my $uctitle=uc($title); |
|
| return "\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:</b>". |
Inputs: filename of persistent database. |
| "</FONT> $instruction<br />". |
|
| '<input type=text name="'.$name.'" size=80 value=\''.$value.'\'>'; |
Store most form variables away to the %persistent_db. |
| } |
Values will be escaped. Values that are array pointers will have their |
| |
elements escaped and concatenated in a comma separated string. |
| sub dateboxes { |
|
| my ($name,$defaultmonth,$defaultday,$defaultyear, |
=cut |
| $currentmonth,$currentday,$currentyear)=@_; |
|
| ($defaultmonth,$defaultday,$defaultyear)=('','',''); |
###################################################################### |
| my $month=<<END; |
###################################################################### |
| <select name="${name}_month"> |
sub make_form_data_persistent { |
| <option value='$defaultmonth'> </option> |
my $r = shift; |
| <option value="1">January</option> |
my $filename = shift; |
| <option value="2">February</option> |
my %save; |
| <option value="3">March</option> |
foreach (keys(%ENV)) { |
| <option value="4">April</option> |
next if (!/^form/ || /submit/); |
| <option value="5">May</option> |
$save{$_} = $ENV{$_}; |
| <option value="6">June</option> |
} |
| <option value="7">July</option> |
return &make_persistent(\%save,$filename); |
| <option value="8">August</option> |
|
| <option value="9">September</option> |
|
| <option value="10">October</option> |
|
| <option value="11">November</option> |
|
| <option value="12">December</option> |
|
| </select> |
|
| END |
|
| $month=~s/(\"$currentmonth\")/$1 SELECTED/ if length($currentmonth); |
|
| my $day=<<END; |
|
| <select name="${name}_day"> |
|
| <option value='$defaultday'> </option> |
|
| <option value="1">1</option> |
|
| <option value="2">2</option> |
|
| <option value="3">3</option> |
|
| <option value="4">4</option> |
|
| <option value="5">5</option> |
|
| <option value="6">6</option> |
|
| <option value="7">7</option> |
|
| <option value="8">8</option> |
|
| <option value="9">9</option> |
|
| <option value="10">10</option> |
|
| <option value="11">11</option> |
|
| <option value="12">12</option> |
|
| <option value="13">13</option> |
|
| <option value="14">14</option> |
|
| <option value="15">15</option> |
|
| <option value="16">16</option> |
|
| <option value="17">17</option> |
|
| <option value="18">18</option> |
|
| <option value="19">19</option> |
|
| <option value="20">20</option> |
|
| <option value="21">21</option> |
|
| <option value="22">22</option> |
|
| <option value="23">23</option> |
|
| <option value="24">24</option> |
|
| <option value="25">25</option> |
|
| <option value="26">26</option> |
|
| <option value="27">27</option> |
|
| <option value="28">28</option> |
|
| <option value="29">29</option> |
|
| <option value="30">30</option> |
|
| <option value="31">31</option> |
|
| </select> |
|
| END |
|
| $day=~s/(\"$currentday\")/$1 SELECTED/ if length($currentday); |
|
| my $year=<<END; |
|
| <select name="${name}_year"> |
|
| <option value='$defaultyear'> </option> |
|
| <option value="1976">1976</option> |
|
| <option value="1977">1977</option> |
|
| <option value="1978">1978</option> |
|
| <option value="1979">1979</option> |
|
| <option value="1980">1980</option> |
|
| <option value="1981">1981</option> |
|
| <option value="1982">1982</option> |
|
| <option value="1983">1983</option> |
|
| <option value="1984">1984</option> |
|
| <option value="1985">1985</option> |
|
| <option value="1986">1986</option> |
|
| <option value="1987">1987</option> |
|
| <option value="1988">1988</option> |
|
| <option value="1989">1989</option> |
|
| <option value="1990">1990</option> |
|
| <option value="1991">1991</option> |
|
| <option value="1992">1992</option> |
|
| <option value="1993">1993</option> |
|
| <option value="1994">1994</option> |
|
| <option value="1995">1995</option> |
|
| <option value="1996">1996</option> |
|
| <option value="1997">1997</option> |
|
| <option value="1998">1998</option> |
|
| <option value="1999">1999</option> |
|
| <option value="2000">2000</option> |
|
| <option value="2001">2001</option> |
|
| <option value="2002">2002</option> |
|
| <option value="2003">2003</option> |
|
| <option value="2004">2004</option> |
|
| <option value="2005">2005</option> |
|
| <option value="2006">2006</option> |
|
| <option value="2007">2007</option> |
|
| <option value="2008">2008</option> |
|
| <option value="2009">2009</option> |
|
| <option value="2010">2010</option> |
|
| <option value="2011">2011</option> |
|
| <option value="2012">2012</option> |
|
| <option value="2013">2013</option> |
|
| <option value="2014">2014</option> |
|
| <option value="2015">2015</option> |
|
| <option value="2016">2016</option> |
|
| <option value="2017">2017</option> |
|
| <option value="2018">2018</option> |
|
| <option value="2019">2019</option> |
|
| <option value="2020">2020</option> |
|
| <option value="2021">2021</option> |
|
| <option value="2022">2022</option> |
|
| <option value="2023">2023</option> |
|
| <option value="2024">2024</option> |
|
| <option value="2025">2025</option> |
|
| <option value="2026">2026</option> |
|
| <option value="2027">2027</option> |
|
| <option value="2028">2028</option> |
|
| <option value="2029">2029</option> |
|
| <option value="2030">2030</option> |
|
| <option value="2031">2031</option> |
|
| <option value="2032">2032</option> |
|
| <option value="2033">2033</option> |
|
| <option value="2034">2034</option> |
|
| <option value="2035">2035</option> |
|
| <option value="2036">2036</option> |
|
| <option value="2037">2037</option> |
|
| <option value="2038">2038</option> |
|
| <option value="2039">2039</option> |
|
| <option value="2040">2040</option> |
|
| <option value="2041">2041</option> |
|
| <option value="2042">2042</option> |
|
| <option value="2043">2043</option> |
|
| <option value="2044">2044</option> |
|
| <option value="2045">2045</option> |
|
| <option value="2046">2046</option> |
|
| <option value="2047">2047</option> |
|
| <option value="2048">2048</option> |
|
| <option value="2049">2049</option> |
|
| <option value="2050">2050</option> |
|
| <option value="2051">2051</option> |
|
| </select> |
|
| END |
|
| $year=~s/(\"$currentyear\")/$1 SELECTED/ if length($currentyear); |
|
| return "$month$day$year"; |
|
| } |
} |
| |
|
| sub selectbox { |
###################################################################### |
| my ($title,$name,$value,%options)=@_; |
###################################################################### |
| my $uctitle=uc($title); |
|
| my $selout="\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:". |
=pod |
| "</b></font><br />".'<select name="'.$name.'">'; |
|
| foreach (sort keys %options) { |
=item &parse_advanced_search() |
| $selout.='<option value=\''.$_.'\''; |
|
| if ($_ eq $value) { $selout.=' selected'; } |
|
| $selout.='>'.$options{$_}.'</option>'; |
|
| } |
|
| return $selout.'</select>'; |
|
| } |
|
| |
|
| # ----------------------------------------------- Performing an advanced search |
|
| sub advancedsearch { |
|
| my ($r,$envhash)=@_; |
|
| my %ENV=%{$envhash}; |
|
| |
|
| |
Parse advanced search form and return the following: |
| |
|
| |
=over 4 |
| |
|
| |
=item $query Scalar containing an SQL query. |
| |
|
| |
=item $customquery Scalar containing a custom query. |
| |
|
| |
=item $customshow Scalar containing commands to show custom metadata. |
| |
|
| |
=item $libraries_to_query Reference to array of domains to search. |
| |
|
| |
=back |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub parse_advanced_search { |
| |
my ($r,$closebutton,$hidden_fields)=@_; |
| |
my @BasicFields = ('title','author','subject','keywords','url','version', |
| |
'notes','abstract','extension','owner','authorspace', |
| |
# 'custommetadata','customshow', |
| |
'modifyinguser','standards','mime'); |
| |
my @StatsFields = &statfields(); |
| |
my @EvalFields = &evalfields(); |
| my $fillflag=0; |
my $fillflag=0; |
| |
my $pretty_search_string = ""; |
| # Clean up fields for safety |
# Clean up fields for safety |
| for my $field ('title','author','subject','keywords','url','version', |
for my $field (@BasicFields, |
| 'creationdatestart_month','creationdatestart_day', |
'creationdatestart_month','creationdatestart_day', |
| 'creationdatestart_year','creationdateend_month', |
'creationdatestart_year','creationdateend_month', |
| 'creationdateend_day','creationdateend_year', |
'creationdateend_day','creationdateend_year', |
| 'lastrevisiondatestart_month','lastrevisiondatestart_day', |
'lastrevisiondatestart_month','lastrevisiondatestart_day', |
| 'lastrevisiondatestart_year','lastrevisiondateend_month', |
'lastrevisiondatestart_year','lastrevisiondateend_month', |
| 'lastrevisiondateend_day','lastrevisiondateend_year', |
'lastrevisiondateend_day','lastrevisiondateend_year') { |
| 'notes','abstract','mime','language','owner', |
$ENV{'form.'.$field}=~s/[^\w\/\s\(\)\=\-\"\']//g; |
| 'custommetadata','customshow') { |
|
| $ENV{"form.$field"}=~s/[^\w\/\s\(\)\=\-\"\']//g; |
|
| } |
} |
| |
foreach ('mode','form','element') { |
| |
# is this required? Hmmm. |
| |
next if (! exists($ENV{'form.'.$_})); |
| |
$ENV{'form.'.$_}=&Apache::lonnet::unescape($ENV{'form.'.$_}); |
| |
$ENV{'form.'.$_}=~s/[^\w\/\s\(\)\=\-\"\']//g; |
| |
} |
| |
# Preprocess the category form element. |
| |
$ENV{'form.category'} = 'any' if (! defined($ENV{'form.category'}) || |
| |
ref($ENV{'form.category'})); |
| |
# |
| # Check to see if enough information was filled in |
# Check to see if enough information was filled in |
| for my $field ('title','author','subject','keywords','url','version', |
foreach my $field (@BasicFields) { |
| 'notes','abstract','mime','language','owner', |
if (&filled($ENV{'form.'.$field})) { |
| 'custommetadata') { |
|
| if (&filled($ENV{"form.$field"})) { |
|
| $fillflag++; |
$fillflag++; |
| } |
} |
| } |
} |
| unless ($fillflag) { |
foreach my $field (@StatsFields,@EvalFields) { |
| &output_blank_field_error($r); |
if (&filled($ENV{'form.'.$field.'_max'})) { |
| return OK; |
$fillflag++; |
| |
} |
| |
if (&filled($ENV{'form.'.$field.'_min'})) { |
| |
$fillflag++; |
| |
} |
| } |
} |
| |
|
| |
for my $field ('lowestgradelevel','highestgradelevel') { |
| |
if ( $ENV{'form.'.$field} =~ /^\d+$/ && |
| |
$ENV{'form.'.$field} > 0) { |
| |
$fillflag++; |
| |
} |
| |
} |
| |
if (! $fillflag) { |
| |
&output_blank_field_error($r,$closebutton, |
| |
'phase=disp_adv',$hidden_fields); |
| |
return ; |
| |
} |
| # Turn the form input into a SQL-based query |
# Turn the form input into a SQL-based query |
| my $query=''; |
my $query=''; |
| |
|
| my @queries; |
my @queries; |
| |
my $font = '<font color="#800000" face="helvetica">'; |
| # Evaluate logical expression AND/OR/NOT phrase fields. |
# Evaluate logical expression AND/OR/NOT phrase fields. |
| foreach my $field ('title','author','subject','notes','abstract','url', |
foreach my $field (@BasicFields) { |
| 'keywords','version','owner') { |
next if (!defined($ENV{'form.'.$field}) || $ENV{'form.'.$field} eq ''); |
| if ($ENV{'form.'.$field}) { |
my ($error,$SQLQuery) = |
| push @queries,&build_SQL_query($field,$ENV{'form.'.$field}); |
&process_phrase_input($ENV{'form.'.$field}, |
| } |
$ENV{'form.'.$field.'_related'},$field); |
| |
if (defined($error)) { |
| |
&output_unparsed_phrase_error($r,$closebutton,'phase=disp_adv', |
| |
$hidden_fields,$field); |
| |
return; |
| |
} else { |
| |
$pretty_search_string .= |
| |
$font.$field.'</font>: '.$ENV{'form.'.$field}; |
| |
if ($ENV{'form.'.$field.'_related'}) { |
| |
my @Words = |
| |
&Apache::loncommon::get_related_words |
| |
($ENV{'form.'.$field}); |
| |
if (@Words) { |
| |
$pretty_search_string.= ' with related words: '. |
| |
join(', ',@Words[0..4]); |
| |
} else { |
| |
$pretty_search_string.= ' with related words.'; |
| |
} |
| |
} |
| |
$pretty_search_string .= '<br />'; |
| |
push (@queries,$SQLQuery); |
| |
} |
| |
} |
| |
# |
| |
# Make the 'mime' from 'form.category' and 'form.extension' |
| |
# |
| |
my $searchphrase; |
| |
if (exists($ENV{'form.category'}) && |
| |
$ENV{'form.category'} !~ /^\s*$/ && |
| |
$ENV{'form.category'} ne 'any') { |
| |
my @extensions = &Apache::loncommon::filecategorytypes |
| |
($ENV{'form.category'}); |
| |
if (scalar(@extensions) > 0) { |
| |
$searchphrase = join(' OR ',@extensions); |
| |
} |
| |
} |
| |
if (defined($searchphrase)) { |
| |
my ($error,$SQLsearch) = &process_phrase_input($searchphrase,0,'mime'); |
| |
push @queries,$SQLsearch; |
| |
$pretty_search_string .=$font.'mime</font> contains <b>'. |
| |
$searchphrase.'</b><br />'; |
| } |
} |
| |
# |
| # Evaluate option lists |
# Evaluate option lists |
| |
if ($ENV{'form.lowestgradelevel'} && |
| |
$ENV{'form.lowestgradelevel'} ne '0' && |
| |
$ENV{'form.lowestgradelevel'} =~ /^\d+$/) { |
| |
push(@queries, |
| |
'(lowestgradelevel>='.$ENV{'form.lowestgradelevel'}.')'); |
| |
$pretty_search_string.="lowestgradelevel>=". |
| |
$ENV{'form.lowestgradelevel'}."<br />\n"; |
| |
} |
| |
if ($ENV{'form.highestgradelevel'} && |
| |
$ENV{'form.highestgradelevel'} ne '0' && |
| |
$ENV{'form.highestgradelevel'} =~ /^\d+$/) { |
| |
push(@queries, |
| |
'(highestgradelevel<='.$ENV{'form.highestgradelevel'}.')'); |
| |
$pretty_search_string.="highestgradelevel<=". |
| |
$ENV{'form.highestgradelevel'}."<br />\n"; |
| |
} |
| if ($ENV{'form.language'} and $ENV{'form.language'} ne 'any') { |
if ($ENV{'form.language'} and $ENV{'form.language'} ne 'any') { |
| push @queries,"(language like \"$ENV{'form.language'}\")"; |
push @queries,"(language like \"$ENV{'form.language'}\")"; |
| } |
$pretty_search_string.=$font."language</font>= ". |
| if ($ENV{'form.mime'} and $ENV{'form.mime'} ne 'any') { |
&Apache::loncommon::languagedescription($ENV{'form.language'}). |
| push @queries,"(mime like \"$ENV{'form.mime'}\")"; |
"<br />\n"; |
| } |
} |
| if ($ENV{'form.copyright'} and $ENV{'form.copyright'} ne 'any') { |
if ($ENV{'form.copyright'} and $ENV{'form.copyright'} ne 'any') { |
| push @queries,"(copyright like \"$ENV{'form.copyright'}\")"; |
push @queries,"(copyright like \"$ENV{'form.copyright'}\")"; |
| |
$pretty_search_string.=$font."copyright</font> = ". |
| |
&Apache::loncommon::copyrightdescription($ENV{'form.copyright'}). |
| |
"<br />\n"; |
| |
} |
| |
# |
| |
# Statistics |
| |
foreach my $field (@StatsFields,@EvalFields) { |
| |
my ($min,$max); |
| |
if (exists($ENV{'form.'.$field.'_min'}) && |
| |
$ENV{'form.'.$field.'_min'} ne '') { |
| |
$min = $ENV{'form.'.$field.'_min'}; |
| |
} |
| |
if (exists($ENV{'form.'.$field.'_max'}) && |
| |
$ENV{'form.'.$field.'_max'} ne '') { |
| |
$max = $ENV{'form.'.$field.'_max'}; |
| |
} |
| |
next if (! defined($max) && ! defined($min)); |
| |
if (defined($min) && defined($max)) { |
| |
($min,$max) = sort {$a <=>$b} ($min,$max); |
| |
} |
| |
if (defined($min) && $min =~ /^(\d+\.\d+|\d+|\.\d+)$/) { |
| |
push(@queries,'('.$field.'>'.$min.')'); |
| |
$pretty_search_string.=$font.$field.'</font>>'.$min.'<br />'; |
| |
} |
| |
if (defined($max) && $max =~ /^(\d+\.\d+|\d+|\.\d+)$/) { |
| |
push(@queries,'('.$field.'<'.$max.')'); |
| |
$pretty_search_string.=$font.$field.'</font><'.$max.'<br />'; |
| |
} |
| } |
} |
| |
# |
| # Evaluate date windows |
# Evaluate date windows |
| my $datequery=&build_date_queries( |
my $cafter = |
| $ENV{'form.creationdatestart_month'}, |
&Apache::lonhtmlcommon::get_date_from_form('creationdate1'); |
| $ENV{'form.creationdatestart_day'}, |
my $cbefore = |
| $ENV{'form.creationdatestart_year'}, |
&Apache::lonhtmlcommon::get_date_from_form('creationdate2'); |
| $ENV{'form.creationdateend_month'}, |
if ($cafter > $cbefore) { |
| $ENV{'form.creationdateend_day'}, |
my $tmp = $cafter; |
| $ENV{'form.creationdateend_year'}, |
$cafter = $cbefore; |
| $ENV{'form.lastrevisiondatestart_month'}, |
$cbefore = $tmp; |
| $ENV{'form.lastrevisiondatestart_day'}, |
} |
| $ENV{'form.lastrevisiondatestart_year'}, |
my $mafter = |
| $ENV{'form.lastrevisiondateend_month'}, |
&Apache::lonhtmlcommon::get_date_from_form('revisiondate1'); |
| $ENV{'form.lastrevisiondateend_day'}, |
my $mbefore = |
| $ENV{'form.lastrevisiondateend_year'}, |
&Apache::lonhtmlcommon::get_date_from_form('revisiondate2'); |
| ); |
if ($mafter > $mbefore) { |
| # Test to see if date windows are legitimate |
my $tmp = $mafter; |
| if ($datequery=~/^Incorrect/) { |
$mafter = $mbefore; |
| &output_date_error($r,$datequery); |
$mbefore = $tmp; |
| return OK; |
} |
| } |
my ($datequery,$error,$prettydate)=&build_date_queries($cafter,$cbefore, |
| elsif ($datequery) { |
$mafter,$mbefore); |
| |
if (defined($error)) { |
| |
&output_date_error($r,$error,$closebutton,$hidden_fields); |
| |
} elsif (defined($datequery)) { |
| |
# Here is where you would set up pretty_search_string to output |
| |
# date query information. |
| |
$pretty_search_string .= '<br />'.$prettydate.'<br />'; |
| push @queries,$datequery; |
push @queries,$datequery; |
| } |
} |
| |
# |
| # Process form information for custom metadata querying |
# Process form information for custom metadata querying |
| my $customquery=''; |
my $customquery=undef; |
| if ($ENV{'form.custommetadata'}) { |
## |
| $customquery=&build_custommetadata_query('custommetadata', |
## The custom metadata search was removed q long time ago mostly |
| $ENV{'form.custommetadata'}); |
## because I was unable to figureout exactly how it worked and could |
| } |
## not imagine people actually using it. MH |
| my $customshow=''; |
## |
| if ($ENV{'form.customshow'}) { |
# if ($ENV{'form.custommetadata'}) { |
| $customshow=$ENV{'form.customshow'}; |
# $pretty_search_string .=$font."Custom Metadata Search</font>: <b>". |
| $customshow=~s/[^\w\s]//g; |
# $ENV{'form.custommetadata'}."</b><br />\n"; |
| my @fields=split(/\s+/,$customshow); |
# $customquery=&build_custommetadata_query('custommetadata', |
| $customshow=join(" ",@fields); |
# $ENV{'form.custommetadata'}); |
| } |
# } |
| # Send query statements over the network to be processed by either the SQL |
my $customshow=undef; |
| # database or a recursive scheme of 'grep'-like actions (for custom |
# if ($ENV{'form.customshow'}) { |
| # metadata). |
# $pretty_search_string .=$font."Custom Metadata Display</font>: <b>". |
| |
# $ENV{'form.customshow'}."</b><br />\n"; |
| |
# $customshow=$ENV{'form.customshow'}; |
| |
# $customshow=~s/[^\w\s]//g; |
| |
# my @fields=split(/\s+/,$customshow); |
| |
# $customshow=join(" ",@fields); |
| |
# } |
| |
## |
| |
## Deal with restrictions to given domains |
| |
## |
| |
my ($libraries_to_query,$pretty_domains_string) = |
| |
&parse_domain_restrictions(); |
| |
$pretty_search_string .= $pretty_domains_string."<br />\n"; |
| |
# |
| if (@queries) { |
if (@queries) { |
| $query=join(" AND ",@queries); |
$query="SELECT * FROM metadata WHERE (".join(") AND (",@queries).')'; |
| $query="select * from metadata where $query"; |
} elsif ($customquery) { |
| my $reply; # reply hash reference |
$query = ''; |
| unless ($customquery or $customshow) { |
} |
| $reply=&Apache::lonnet::metadata_query($query); |
# &Apache::lonnet::logthis('query = '.$/.$query); |
| } |
return ($query,$customquery,$customshow,$libraries_to_query, |
| else { |
$pretty_search_string); |
| $reply=&Apache::lonnet::metadata_query($query, |
} |
| $customquery,$customshow); |
|
| } |
sub parse_domain_restrictions { |
| &output_results('Advanced',$r,$envhash,$customquery,$reply); |
my $libraries_to_query = undef; |
| |
# $ENV{'form.domains'} can be either a scalar or an array reference. |
| |
# We need an array. |
| |
if (! exists($ENV{'form.domains'}) || $ENV{'form.domains'} eq '') { |
| |
return (undef,''); |
| |
} |
| |
my @allowed_domains; |
| |
if (ref($ENV{'form.domains'})) { |
| |
@allowed_domains = @{$ENV{'form.domains'}}; |
| |
} else { |
| |
@allowed_domains = ($ENV{'form.domains'}); |
| |
} |
| |
# |
| |
my %domain_hash = (); |
| |
my $pretty_domains_string; |
| |
foreach (@allowed_domains) { |
| |
$domain_hash{$_}++; |
| |
} |
| |
if ($domain_hash{'any'}) { |
| |
$pretty_domains_string = "In all LON-CAPA domains."; |
| |
} else { |
| |
if (@allowed_domains > 1) { |
| |
$pretty_domains_string = "In LON-CAPA domains:"; |
| |
} else { |
| |
$pretty_domains_string = "In LON-CAPA domain "; |
| |
} |
| |
foreach (sort @allowed_domains) { |
| |
$pretty_domains_string .= "<b>".$_."</b> "; |
| |
} |
| |
foreach (keys(%Apache::lonnet::libserv)) { |
| |
if (exists($domain_hash{$Apache::lonnet::hostdom{$_}})) { |
| |
push @$libraries_to_query,$_; |
| |
} |
| |
} |
| } |
} |
| elsif ($customquery) { |
return ($libraries_to_query,$pretty_domains_string); |
| my $reply; # reply hash reference |
} |
| $reply=&Apache::lonnet::metadata_query('', |
|
| $customquery,$customshow); |
###################################################################### |
| &output_results('Advanced',$r,$envhash,$customquery,$reply); |
###################################################################### |
| } |
|
| # should not get to this point |
=pod |
| return 'Error. Should not have gone to this point.'; |
|
| } |
=item &parse_basic_search() |
| |
|
| # --------------------------------------------------- Performing a basic search |
Parse the basic search form and return a scalar containing an sql query. |
| sub basicsearch { |
|
| my ($r,$envhash)=@_; |
=cut |
| my %ENV=%{$envhash}; |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub parse_basic_search { |
| |
my ($r,$closebutton)=@_; |
| |
# |
| # Clean up fields for safety |
# Clean up fields for safety |
| for my $field ('basicexp') { |
for my $field ('basicexp') { |
| $ENV{"form.$field"}=~s/[^\w\s\(\)\-]//g; |
$ENV{"form.$field"}=~s/[^\w\s\'\"\!\(\)\-]//g; |
| } |
} |
| |
foreach ('mode','form','element') { |
| # Check to see if enough is filled in |
# is this required? Hmmm. |
| unless (&filled($ENV{'form.basicexp'})) { |
next unless (exists($ENV{"form.$_"})); |
| &output_blank_field_error($r); |
$ENV{"form.$_"}=&Apache::lonnet::unescape($ENV{"form.$_"}); |
| |
$ENV{"form.$_"}=~s/[^\w\/\s\(\)\=\-\"\']//g; |
| |
} |
| |
my ($libraries_to_query,$pretty_domains_string) = |
| |
&parse_domain_restrictions(); |
| |
# |
| |
# Check to see if enough of a query is filled in |
| |
my $search_string = $ENV{'form.basicexp'}; |
| |
if (! &filled($search_string)) { |
| |
&output_blank_field_error($r,$closebutton,'phase=disp_basic'); |
| return OK; |
return OK; |
| } |
} |
| |
my $pretty_search_string=$search_string; |
| |
my @Queries; |
| |
my $searchfield = 'concat_ws(" ",'.join(',', |
| |
('title','author','subject', |
| |
'notes','abstract','keywords') |
| |
).')'; |
| |
my ($error,$SQLQuery) = &process_phrase_input($search_string, |
| |
$ENV{'form.related'}, |
| |
$searchfield); |
| |
if ($error) { |
| |
&output_unparsed_phrase_error($r,$closebutton,'phase=disp_basic', |
| |
'','basicexp'); |
| |
return; |
| |
} |
| |
push(@Queries,$SQLQuery); |
| |
#foreach my $q (@Queries) { |
| |
# &Apache::lonnet::logthis(' '.$q); |
| |
#} |
| |
my $final_query = 'SELECT * FROM metadata WHERE '.join(" AND ",@Queries); |
| |
# |
| |
if (defined($pretty_domains_string) && $pretty_domains_string ne '') { |
| |
$pretty_search_string .= ' '.$pretty_domains_string; |
| |
} |
| |
$pretty_search_string .= "<br />\n"; |
| |
$pretty_search_string =~ s:^<br /> and ::; |
| |
# &Apache::lonnet::logthis($final_query); |
| |
return ($final_query,$pretty_search_string, |
| |
$libraries_to_query); |
| |
} |
| |
|
| # Build SQL query string based on form page |
|
| my $query=''; |
|
| my $concatarg=join('," ",', |
|
| ('title', 'author', 'subject', 'notes', 'abstract')); |
|
| $concatarg='title' if $ENV{'form.titleonly'}; |
|
| |
|
| $query=&build_SQL_query('concat('.$concatarg.')',$ENV{'form.'.'basicexp'}); |
############################################################### |
| |
############################################################### |
| |
|
| |
my @Phrases; |
| |
|
| |
sub concat { |
| |
my ($item) = @_; |
| |
my $results = ''; |
| |
foreach (@$item) { |
| |
if (ref($_) eq 'ARRAY') { |
| |
$results .= join(' ',@$_); |
| |
} |
| |
} |
| |
return $results; |
| |
} |
| |
|
| # Get reply (either a hash reference to filehandles or bad connection) |
sub process_phrase_input { |
| my $reply=&Apache::lonnet::metadata_query('select * from metadata where '.$query); |
my ($phrase,$related,$field)=@_; |
| |
#&Apache::lonnet::logthis('phrase = :'.$phrase.':'); |
| |
my $grammar = <<'ENDGRAMMAR'; |
| |
searchphrase: |
| |
expression /^\Z/ { |
| |
# &Apache::lonsearchcat::print_item(\@item,0); |
| |
[@item]; |
| |
} |
| |
expression: |
| |
phrase(s) { |
| |
[@item]; |
| |
} |
| |
phrase: |
| |
orword { |
| |
[@item]; |
| |
} |
| |
| andword { |
| |
[@item]; |
| |
} |
| |
| minusword { |
| |
unshift(@::Phrases,$item[1]->[0]); |
| |
unshift(@::Phrases,$item[1]->[1]); |
| |
[@item]; |
| |
} |
| |
| word { |
| |
unshift(@::Phrases,$item[1]); |
| |
[@item]; |
| |
} |
| |
# |
| |
orword: |
| |
word 'OR' phrase { |
| |
unshift(@::Phrases,'OR'); |
| |
unshift(@::Phrases,$item[1]); |
| |
[@item]; |
| |
} |
| |
| word 'or' phrase { |
| |
unshift(@::Phrases,'OR'); |
| |
unshift(@::Phrases,$item[1]); |
| |
[@item]; |
| |
} |
| |
| minusword 'OR' phrase { |
| |
unshift(@::Phrases,'OR'); |
| |
unshift(@::Phrases,$item[1]->[0]); |
| |
unshift(@::Phrases,$item[1]->[1]); |
| |
[@item]; |
| |
} |
| |
| minusword 'or' phrase { |
| |
unshift(@::Phrases,'OR'); |
| |
unshift(@::Phrases,$item[1]->[0]); |
| |
unshift(@::Phrases,$item[1]->[1]); |
| |
[@item]; |
| |
} |
| |
andword: |
| |
word phrase { |
| |
unshift(@::Phrases,'AND'); |
| |
unshift(@::Phrases,$item[1]); |
| |
[@item]; |
| |
} |
| |
| minusword phrase { |
| |
unshift(@::Phrases,'AND'); |
| |
unshift(@::Phrases,$item[1]->[0]); |
| |
unshift(@::Phrases,$item[1]->[1]); |
| |
[@item]; |
| |
} |
| |
# |
| |
minusword: |
| |
'-' word { |
| |
[$item[2],'NOT']; |
| |
} |
| |
word: |
| |
"'" term(s) "'" { |
| |
&Apache::lonsearchcat::concat(\@item); |
| |
} |
| |
| '"' term(s) '"' { |
| |
&Apache::lonsearchcat::concat(\@item); |
| |
} |
| |
| term { |
| |
$item[1]; |
| |
} |
| |
term: |
| |
/[\w\Q:!@#$%^&*()+_=|{}<>,.;\\\/?\E]+/ { |
| |
$item[1]; |
| |
} |
| |
ENDGRAMMAR |
| |
# |
| |
# The end result of parsing the phrase with the grammar is an array |
| |
# @::Phrases. |
| |
# $phrase = "gene splicing" or cat -> "gene splicing","OR","cat" |
| |
# $phrase = "genetic engineering" -dna -> |
| |
# "genetic engineering","AND","NOT","dna" |
| |
# $phrase = cat or dog -poodle -> "cat","OR","dog","AND","NOT","poodle" |
| |
undef(@::Phrases); |
| |
my $p = new Parse::RecDescent($grammar); |
| |
if (! defined($p->searchphrase($phrase))) { |
| |
&Apache::lonnet::logthis('lonsearchcat:unable to process:'.$phrase); |
| |
return 'Unable to process phrase '.$phrase; |
| |
} |
| |
# |
| |
# Go through the phrases and make sense of them. |
| |
# Apply modifiers NOT OR and AND to the phrases. |
| |
my @NewPhrases; |
| |
while(@::Phrases) { |
| |
my $phrase = shift(@::Phrases); |
| |
# &Apache::lonnet::logthis('phrase = '.$phrase); |
| |
my $phrasedata; |
| |
if ($phrase =~ /^(NOT|OR|AND)$/) { |
| |
if ($phrase eq 'OR') { |
| |
$phrasedata->{'or'}++; |
| |
if (! @::Phrases) { $phrasedata = undef; last; } |
| |
$phrase = shift(@::Phrases); |
| |
} elsif ($phrase eq 'AND') { |
| |
$phrasedata->{'and'}++; |
| |
if (! @::Phrases) { $phrasedata = undef; last; } |
| |
$phrase = shift(@::Phrases); |
| |
} |
| |
if ($phrase eq 'NOT') { |
| |
$phrasedata->{'negate'}++; |
| |
if (! @::Phrases) { $phrasedata = undef; last; } |
| |
$phrase = shift(@::Phrases); |
| |
} |
| |
} |
| |
$phrasedata->{'phrase'} = $phrase; |
| |
if ($related) { |
| |
my @NewWords; |
| |
(undef,@NewWords) = &related_version($phrasedata->{'phrase'}); |
| |
$phrasedata->{'related_words'} = \@NewWords; |
| |
} |
| |
push(@NewPhrases,$phrasedata); |
| |
} |
| |
# |
| |
# Actually build the sql query from the phrases |
| |
my $SQLQuery; |
| |
foreach my $phrase (@NewPhrases) { |
| |
my $query; |
| |
if ($phrase->{'negate'}) { |
| |
$query .= $field.' NOT LIKE "%'.$phrase->{'phrase'}.'%"'; |
| |
} else { |
| |
$query .= $field.' LIKE "%'.$phrase->{'phrase'}.'%"'; |
| |
} |
| |
foreach my $related (@{$phrase->{'related_words'}}) { |
| |
if ($phrase->{'negate'}) { |
| |
$query .= ' AND '.$field.' NOT LIKE "%'.$related.'%"'; |
| |
} else { |
| |
$query .= ' OR '.$field.' LIKE "%'.$related.'%"'; |
| |
} |
| |
} |
| |
if ($SQLQuery) { |
| |
if ($phrase->{'or'}) { |
| |
$SQLQuery .= ' OR ('.$query.')'; |
| |
} else { |
| |
$SQLQuery .= ' AND ('.$query.')'; |
| |
} |
| |
} else { |
| |
$SQLQuery = '('.$query.')'; |
| |
} |
| |
} |
| |
# |
| |
# &Apache::lonnet::logthis("SQLQuery = $SQLQuery"); |
| |
# |
| |
return undef,$SQLQuery; |
| |
} |
| |
|
| # Output search results |
###################################################################### |
| |
###################################################################### |
| |
|
| &output_results('Basic',$r,$envhash,$query,$reply); |
=pod |
| |
|
| return OK; |
=item &related_version() |
| } |
|
| |
|
| # ------------------------------------------------------------- build_SQL_query |
Modifies an input string to include related words. Words in the string |
| sub build_SQL_query { |
are replaced with parenthesized lists of 'OR'd words. For example |
| my ($field_name,$logic_statement)=@_; |
"torque" is replaced with "(torque OR word1 OR word2 OR ...)". |
| my $q=new Text::Query('abc', |
|
| -parse => 'Text::Query::ParseAdvanced', |
Note: Using this twice on a string is probably silly. |
| -build => 'Text::Query::Build'); |
|
| $q->prepare($logic_statement); |
=cut |
| my $matchexp=${$q}{'matchexp'}; chomp $matchexp; |
|
| my $sql_query=&recursive_SQL_query_build($field_name,$matchexp); |
###################################################################### |
| return $sql_query; |
###################################################################### |
| |
sub related_version { |
| |
my ($word) = @_; |
| |
return (undef) if (lc($word) =~ /\b(or|and|not)\b/); |
| |
my @Words = &Apache::loncommon::get_related_words($word); |
| |
# Only use 4 related words |
| |
@Words = ($#Words>4? @Words[0..4] : @Words); |
| |
my $result = join " OR ", ($word,@Words); |
| |
return $result,sort(@Words); |
| } |
} |
| |
|
| # ------------------------------------------------- build custom metadata query |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &build_custommetadata_query() |
| |
|
| |
Constructs a custom metadata query using a rather heinous regular |
| |
expression. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| sub build_custommetadata_query { |
sub build_custommetadata_query { |
| my ($field_name,$logic_statement)=@_; |
my ($field_name,$logic_statement)=@_; |
| my $q=new Text::Query('abc', |
my $q=new Text::Query('abc', |
|
Line 760 sub build_custommetadata_query {
|
Line 1847 sub build_custommetadata_query {
|
| my $matchexp=${$q}{'-parse'}{'-build'}{'matchstring'}; |
my $matchexp=${$q}{'-parse'}{'-build'}{'matchstring'}; |
| # quick fix to change literal into xml tag-matching |
# quick fix to change literal into xml tag-matching |
| # will eventually have to write a separate builder module |
# will eventually have to write a separate builder module |
| my $oldmatchexp=$matchexp; |
# wordone=wordtwo becomes\<wordone\>[^\<] *wordtwo[^\<]*\<\/wordone\> |
| $matchexp=~s/(\w+)\\\=([\w\\\+]+)/\\\<$1\\\>\[\^\\\<\]\*$2\[\^\\\<\]\*\\\<\\\/$1\\\>/g; |
$matchexp =~ s/(\w+)\\=([\w\\\+]+)?# wordone=wordtwo is changed to |
| |
/\\<$1\\>?# \<wordone\> |
| |
\[\^\\<\]?# [^\<] |
| |
\*$2\[\^\\<\]?# *wordtwo[^\<] |
| |
\*\\<\\\/$1\\>?# *\<\/wordone\> |
| |
/g; |
| return $matchexp; |
return $matchexp; |
| } |
} |
| |
|
| # - Recursively parse a reverse notation expression into a SQL query expression |
|
| sub recursive_SQL_query_build { |
|
| my ($dkey,$pattern)=@_; |
|
| my @matches=($pattern=~/(\[[^\]|\[]*\])/g); |
|
| return $pattern unless @matches; |
|
| foreach my $match (@matches) { |
|
| $match=~/\[ (\w+)\s(.*) \]/; |
|
| my ($key,$value)=($1,$2); |
|
| my $replacement=''; |
|
| if ($key eq 'literal') { |
|
| $replacement="($dkey like \"\%$value\%\")"; |
|
| } |
|
| elsif ($key eq 'not') { |
|
| $value=~s/like/not like/; |
|
| # $replacement="($dkey not like $value)"; |
|
| $replacement="$value"; |
|
| } |
|
| elsif ($key eq 'and') { |
|
| $value=~/(.*[\"|\)]) ([|\(|\^].*)/; |
|
| $replacement="($1 AND $2)"; |
|
| } |
|
| elsif ($key eq 'or') { |
|
| $value=~/(.*[\"|\)]) ([|\(|\^].*)/; |
|
| $replacement="($1 OR $2)"; |
|
| } |
|
| substr($pattern, |
|
| index($pattern,$match), |
|
| length($match), |
|
| $replacement |
|
| ); |
|
| } |
|
| &recursive_SQL_query_build($dkey,$pattern); |
|
| } |
|
| |
|
| # ------------------------------------------------------------ Build date query |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &build_date_queries() |
| |
|
| |
Builds a SQL logic query to check time/date entries. |
| |
Also reports errors (check for /^Incorrect/). |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| sub build_date_queries { |
sub build_date_queries { |
| my ($cmonth1,$cday1,$cyear1,$cmonth2,$cday2,$cyear2, |
my ($cafter,$cbefore,$mafter,$mbefore) = @_; |
| $lmonth1,$lday1,$lyear1,$lmonth2,$lday2,$lyear2)=@_; |
my ($result,$error,$pretty_string); |
| my @queries; |
# |
| if ($cmonth1 or $cday1 or $cyear1 or $cmonth2 or $cday2 or $cyear2) { |
# Verify the input |
| unless ($cmonth1 and $cday1 and $cyear1 and |
if (! defined($cafter) && ! defined($cbefore) && |
| $cmonth2 and $cday2 and $cyear2) { |
! defined($mafter) && ! defined($mbefore)) { |
| return "Incorrect entry for the creation date. You must specify ". |
# This is an okay situation, so return undef for the error |
| "a starting month, day, and year and an ending month, ". |
return (undef,undef,undef); |
| "day, and year."; |
} |
| } |
if ((defined($cafter) && ! defined($cbefore)) || |
| my $cnumeric1=sprintf("%d%2d%2d",$cyear1,$cmonth1,$cday1); |
(defined($cbefore) && ! defined($cafter))) { |
| $cnumeric1+=0; |
# This is bad, so let them know |
| my $cnumeric2=sprintf("%d%2d%2d",$cyear2,$cmonth2,$cday2); |
$error = &mt('Incorrect entry for the creation date. '. |
| $cnumeric2+=0; |
'You must specify both the beginning and ending dates.'); |
| if ($cnumeric1>$cnumeric2) { |
} |
| return "Incorrect entry for the creation date. The starting ". |
if (! defined($error) && |
| "date must occur before the ending date."; |
((defined($mafter) && ! defined($mbefore)) || |
| } |
(defined($mbefore) && ! defined($mafter)))) { |
| my $cquery="(creationdate BETWEEN '$cyear1-$cmonth1-$cday1' AND '". |
# This is also bad, so let them know |
| "$cyear2-$cmonth2-$cday2 23:59:59')"; |
$error = &mt('Incorrect entry for the last revision date. '. |
| push @queries,$cquery; |
'You must specify both the beginning and ending dates.'); |
| } |
} |
| if ($lmonth1 or $lday1 or $lyear1 or $lmonth2 or $lday2 or $lyear2) { |
if (! defined($error)) { |
| unless ($lmonth1 and $lday1 and $lyear1 and |
# |
| $lmonth2 and $lday2 and $lyear2) { |
# Build the queries |
| return "Incorrect entry for the last revision date. You must ". |
my @queries; |
| "specify a starting month, day, and year and an ending ". |
if (defined($cbefore) && defined($cafter)) { |
| "month, day, and year."; |
my (undef,undef,undef,$caday,$camon,$cayear) = localtime($cafter); |
| } |
my (undef,undef,undef,$cbday,$cbmon,$cbyear) = localtime($cbefore); |
| my $lnumeric1=sprintf("%d%2d%2d",$lyear1,$lmonth1,$lday1); |
# Correct for year being relative to 1900 |
| $lnumeric1+=0; |
$cayear+=1900; $cbyear+=1900; |
| my $lnumeric2=sprintf("%d%2d%2d",$lyear2,$lmonth2,$lday2); |
my $cquery= |
| $lnumeric2+=0; |
'(creationdate BETWEEN '. |
| if ($lnumeric1>$lnumeric2) { |
"'".$cayear.'-'.$camon.'-'.$caday."'". |
| return "Incorrect entry for the last revision date. The ". |
' AND '. |
| "starting date must occur before the ending date."; |
"'".$cbyear.'-'.$cbmon.'-'.$cbday." 23:59:59')"; |
| } |
$pretty_string .= '<br />' if (defined($pretty_string)); |
| my $lquery="(lastrevisiondate BETWEEN '$lyear1-$lmonth1-$lday1' AND '". |
$pretty_string .= |
| "$lyear2-$lmonth2-$lday2 23:59:59')"; |
&mt('created between [_1] and [_2]', |
| push @queries,$lquery; |
&Apache::lonlocal::locallocaltime($cafter), |
| } |
&Apache::lonlocal::locallocaltime($cbefore+24*60*60-1)); |
| if (@queries) { |
push(@queries,$cquery); |
| return join(" AND ",@queries); |
$pretty_string =~ s/ 00:00:00//g; |
| |
} |
| |
if (defined($mbefore) && defined($mafter)) { |
| |
my (undef,undef,undef,$maday,$mamon,$mayear) = localtime($mafter); |
| |
my (undef,undef,undef,$mbday,$mbmon,$mbyear) = localtime($mbefore); |
| |
# Correct for year being relative to 1900 |
| |
$mayear+=1900; $mbyear+=1900; |
| |
my $mquery= |
| |
'(lastrevisiondate BETWEEN '. |
| |
"'".$mayear.'-'.$mamon.'-'.$maday."'". |
| |
' AND '. |
| |
"'".$mbyear.'-'.$mbmon.'-'.$mbday." 23:59:59')"; |
| |
push(@queries,$mquery); |
| |
$pretty_string .= '<br />' if (defined($pretty_string)); |
| |
$pretty_string .= |
| |
&mt('last revised between [_1] and [_2]', |
| |
&Apache::lonlocal::locallocaltime($mafter), |
| |
&Apache::lonlocal::locallocaltime($mbefore+24*60*60-1)); |
| |
$pretty_string =~ s/ 00:00:00//g; |
| |
} |
| |
if (@queries) { |
| |
$result .= join(" AND ",@queries); |
| |
} |
| } |
} |
| return ''; |
return ($result,$error,$pretty_string); |
| } |
} |
| |
|
| # ----------------------------- format and output results based on a reply list |
###################################################################### |
| # There are two windows that this function writes to. The main search |
###################################################################### |
| # window ("srch") has a listing of the results. A secondary window ("popwin") |
|
| # gives the status of the network search (time elapsed, number of machines |
|
| # contacted, etc.) |
|
| sub output_results { |
|
| my $fnum; # search result counter |
|
| my ($mode,$r,$envhash,$query,$replyref)=@_; |
|
| my %ENV=%{$envhash}; |
|
| my %rhash=%{$replyref}; |
|
| my $compiledresult=''; |
|
| my $timeremain=300; |
|
| my $elapsetime=0; |
|
| my $resultflag=0; |
|
| my $tflag=1; |
|
| |
|
| # make query information persistent to allow for subsequent revision |
=pod |
| my $persistent=&make_persistent(); |
|
| |
|
| # output beginning of search page |
=item ©right_check() |
| $r->print(<<BEGINNING); |
|
| <html> |
|
| <head> |
|
| <title>The LearningOnline Network with CAPA</title> |
|
| BEGINNING |
|
| |
|
| # conditional output of script functions dependent on the mode in |
Inputs: $Metadata, a hash pointer of metadata for a resource. |
| # which the search was invoked |
|
| $r->print(<<SCRIPT) if $ENV{'form.catalogmode'} eq 'interactive'; |
Returns: 1 if the resource is available to the user making the query, |
| <script type="text/javascript"> |
0 otherwise. |
| function select_data(title,url) { |
|
| changeTitle(title); |
=cut |
| changeURL(url); |
|
| self.close(); |
###################################################################### |
| } |
###################################################################### |
| function changeTitle(val) { |
sub copyright_check { |
| if (opener.inf.document.forms.resinfo.elements.t) { |
my $Metadata = shift; |
| opener.inf.document.forms.resinfo.elements.t.value=val; |
# Check copyright tags and skip results the user cannot use |
| } |
my (undef,undef,$resdom,$resname) = split('/', |
| } |
$Metadata->{'url'}); |
| function changeURL(val) { |
# Check for priv |
| if (opener.inf.document.forms.resinfo.elements.u) { |
if (($Metadata->{'copyright'} eq 'priv') && |
| opener.inf.document.forms.resinfo.elements.u.value=val; |
(($ENV{'user.name'} ne $resname) && |
| } |
($ENV{'user.domain'} ne $resdom))) { |
| } |
return 0; |
| </script> |
|
| SCRIPT |
|
| $r->print(<<SCRIPT) if $ENV{'form.catalogmode'} eq 'groupsearch'; |
|
| <script type="text/javascript"> |
|
| function select_data(title,url) { |
|
| // alert('DEBUG: Should be storing '+title+' and '+url); |
|
| } |
|
| function queue(val) { |
|
| if (eval("document.forms.results.returnvalues["+val+"].checked")) { |
|
| document.forms.results.acts.value+='1a'+val+'b'; |
|
| } |
|
| else { |
|
| document.forms.results.acts.value+='0a'+val+'b'; |
|
| } |
|
| } |
} |
| function select_group() { |
# Check for domain |
| window.location="/adm/groupsort?catalogmode=groupsearch&acts="+ |
if (($Metadata->{'copyright'} eq 'domain') && |
| document.forms.results.acts.value; |
($ENV{'user.domain'} ne $resdom)) { |
| |
return 0; |
| } |
} |
| </script> |
return 1; |
| SCRIPT |
} |
| $r->print(<<SCRIPT); |
|
| <script type="text/javascript"> |
###################################################################### |
| function displayinfo(val) { |
###################################################################### |
| popwin.document.forms.popremain.sdetails.value=val; |
|
| |
=pod |
| |
|
| |
=item &ensure_db_and_table() |
| |
|
| |
Ensure we can get lonmysql to connect to the database and the table we |
| |
need exists. |
| |
|
| |
Inputs: $r, table id |
| |
|
| |
Returns: undef on error, 1 if the table exists. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub ensure_db_and_table { |
| |
my ($r,$table) = @_; |
| |
## |
| |
## Sanity check the table id. |
| |
## |
| |
if (! defined($table) || $table eq '' || $table =~ /\D/ ) { |
| |
$r->print("Unable to retrieve search results. ". |
| |
"Unable to determine the table results were stored in. ". |
| |
"</body></html>"); |
| |
return undef; |
| |
} |
| |
## |
| |
## Make sure we can connect and the table exists. |
| |
## |
| |
my $connection_result = &Apache::lonmysql::connect_to_db(); |
| |
if (!defined($connection_result)) { |
| |
$r->print("Unable to connect to the MySQL database where your results". |
| |
" are stored. </body></html>"); |
| |
&Apache::lonnet::logthis("lonsearchcat: unable to get lonmysql to". |
| |
" connect to database."); |
| |
&Apache::lonnet::logthis(&Apache::lonmysql::get_error()); |
| |
return undef; |
| |
} |
| |
my $table_check = &Apache::lonmysql::check_table($table); |
| |
if (! defined($table_check)) { |
| |
$r->print("A MySQL error has occurred.</form></body></html>"); |
| |
&Apache::lonnet::logthis("lonmysql was unable to determine the status". |
| |
" of table ".$table); |
| |
return undef; |
| |
} elsif (! $table_check) { |
| |
$r->print("The table of results could not be found."); |
| |
&Apache::lonnet::logthis("The user requested a table, ".$table. |
| |
", that could not be found."); |
| |
return undef; |
| |
} |
| |
return 1; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &print_sort_form() |
| |
|
| |
The sort feature is not implemented at this time. This form just prints |
| |
a link to change the search query. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub print_sort_form { |
| |
my ($r,$pretty_query_string) = @_; |
| |
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1). |
| |
&Apache::lonhtmlcommon::breadcrumbs |
| |
(undef,'Searching','Searching',undef,undef, |
| |
$ENV{'form.catalogmode'} ne 'groupsearch'); |
| |
|
| |
## |
| |
my %SortableFields=&Apache::lonlocal::texthash( |
| |
id => 'Default', |
| |
title => 'Title', |
| |
author => 'Author', |
| |
subject => 'Subject', |
| |
url => 'URL', |
| |
version => 'Version Number', |
| |
mime => 'Mime type', |
| |
lang => 'Language', |
| |
owner => 'Owner/Publisher', |
| |
copyright => 'Copyright', |
| |
hostname => 'Host', |
| |
creationdate => 'Creation Date', |
| |
lastrevisiondate => 'Revision Date' |
| |
); |
| |
## |
| |
my $table = $ENV{'form.table'}; |
| |
return if (! &ensure_db_and_table($r,$table)); |
| |
## |
| |
## Get the number of results |
| |
## |
| |
my $total_results = &Apache::lonmysql::number_of_rows($table); |
| |
if (! defined($total_results)) { |
| |
$r->print("A MySQL error has occurred.</form></body></html>"); |
| |
&Apache::lonnet::logthis("lonmysql was unable to determine the number". |
| |
" of rows in table ".$table); |
| |
&Apache::lonnet::logthis(&Apache::lonmysql::get_error()); |
| |
return; |
| } |
} |
| function openhelp(val) { |
my $result; |
| openhelpwin=open('/adm/help/searchcat.html','helpscreen', |
$result.=<<END; |
| 'scrollbars=1,width=400,height=300'); |
<html> |
| openhelpwin.focus(); |
<head> |
| } |
<script> |
| function abortsearch(val) { |
function change_sort() { |
| openhelpwin=open('/adm/help/searchcat.html','helpscreen', |
var newloc = "/adm/searchcat?phase=results"; |
| 'scrollbars=1,width=400,height=300'); |
newloc += "&persistent_db_id=$ENV{'form.persistent_db_id'}"; |
| openhelpwin.focus(); |
newloc += "&sortby="; |
| |
newloc += document.forms.statusform.elements.sortby.value; |
| |
parent.resultsframe.location= newloc; |
| } |
} |
| </script> |
</script> |
| SCRIPT |
<title>Results</title> |
| $r->rflush(); |
|
| |
|
| # begin showing the cataloged results |
|
| $r->print(<<CATALOGBEGIN); |
|
| </head> |
</head> |
| <body bgcolor="#ffffff"> |
$bodytag |
| <img align=right src=/adm/lonIcons/lonlogos.gif> |
<form name="statusform" action="" method="post"> |
| <h1>Search Catalog</h1> |
<input type="hidden" name="Queue" value="" /> |
| CATALOGBEGIN |
END |
| $r->print(<<CATALOGCONTROLS); |
|
| <form name='results' method="post" action="/adm/searchcat"> |
#<h2>Sort Results</h2> |
| <input type='hidden' name='acts' value='' /> |
#Sort by: <select size="1" name="sortby" onchange="javascript:change_sort();"> |
| <input type='button' value='Revise search request' |
# $ENV{'form.sortby'} = 'id' if (! defined($ENV{'form.sortby'})); |
| onClick='this.form.submit();' /> |
# foreach (keys(%SortableFields)) { |
| $importbutton |
# $result.="<option name=\"$_\""; |
| $closebutton |
# if ($_ eq $ENV{'form.sortby'}) { |
| $persistent |
# $result.=" selected "; |
| <hr /> |
# } |
| <h3>Search Query</h3> |
# $result.=" >$SortableFields{$_}</option>\n"; |
| CATALOGCONTROLS |
# } |
| if ($mode eq 'Basic') { |
# $result.="</select>\n"; |
| $r->print(<<RESULTS); |
my $revise = &revise_button(); |
| <p> |
$result.=<<END; |
| <b>Basic search:</b> $ENV{'form.basicexp'} |
|
| </p> |
|
| RESULTS |
|
| } |
|
| elsif ($mode eq 'Advanced') { |
|
| $r->print(<<RESULTS); |
|
| <p> |
<p> |
| <b>Advanced search</b> |
There are $total_results matches to your query. $revise |
| $query |
</p><p> |
| |
Search:$pretty_query_string |
| </p> |
</p> |
| RESULTS |
</form> |
| } |
</body> |
| $r->print('<h3>Search Results</h3>'); |
</html> |
| |
END |
| |
$r->print($result); |
| |
return; |
| |
} |
| |
|
| |
##################################################################### |
| |
##################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item MySQL Table Description |
| |
|
| |
MySQL table creation requires a precise description of the data to be |
| |
stored. The use of the correct types to hold data is vital to efficient |
| |
storage and quick retrieval of records. The columns must be described in |
| |
the following format: |
| |
|
| |
=cut |
| |
|
| |
##################################################################### |
| |
##################################################################### |
| |
# |
| |
# These should probably be scoped but I don't have time right now... |
| |
# |
| |
my @Datatypes; |
| |
my @Fullindicies; |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &create_results_table() |
| |
|
| |
Creates the table of search results by calling lonmysql. Stores the |
| |
table id in $ENV{'form.table'} |
| |
|
| |
Inputs: none. |
| |
|
| |
Returns: the identifier of the table on success, undef on error. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub set_up_table_structure { |
| |
my ($datatypes,$fullindicies) = |
| |
&LONCAPA::lonmetadata::describe_metadata_storage(); |
| |
# Copy the table description before modifying it... |
| |
@Datatypes = @{$datatypes}; |
| |
unshift(@Datatypes,{name => 'id', |
| |
type => 'MEDIUMINT', |
| |
restrictions => 'UNSIGNED NOT NULL', |
| |
primary_key => 'yes', |
| |
auto_inc => 'yes' }); |
| |
@Fullindicies = @{$fullindicies}; |
| |
return; |
| |
} |
| |
|
| |
sub create_results_table { |
| |
&set_up_table_structure(); |
| |
my $table = &Apache::lonmysql::create_table |
| |
( { columns => \@Datatypes, |
| |
FULLTEXT => [{'columns' => \@Fullindicies},], |
| |
} ); |
| |
if (defined($table)) { |
| |
$ENV{'form.table'} = $table; |
| |
return $table; |
| |
} |
| |
return undef; # Error... |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item Search Status update functions |
| |
|
| |
Each of the following functions changes the values of one of the |
| |
input fields used to display the search status to the user. The names |
| |
should be explanatory. |
| |
|
| |
Inputs: Apache request handler ($r), text to display. |
| |
|
| |
Returns: Nothing. |
| |
|
| |
=over 4 |
| |
|
| |
=item &update_count_status() |
| |
|
| |
=item &update_status() |
| |
|
| |
=item &update_seconds() |
| |
|
| |
=back |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub update_count_status { |
| |
my ($r,$text) = @_; |
| |
$text =~ s/\'/\\\'/g; |
| |
$r->print |
| |
("<script>document.statusform.count.value = ' $text'</script>\n"); |
| $r->rflush(); |
$r->rflush(); |
| my $servernum=(keys %rhash)+0; |
} |
| |
|
| # define server grid (shows status of multiple machines) |
sub update_status { |
| my $hcinit; |
my ($r,$text) = @_; |
| my $grid="'<br />'+"; |
$text =~ s/\'/\\\'/g; |
| $grid.="\n"; |
$r->print |
| my $sn=1; |
("<script>document.statusform.status.value = ' $text'</script>\n"); |
| for my $sk (sort keys %rhash) { |
|
| # '<a href=" |
|
| $grid.="'<a href=\""; |
|
| # javascript:displayinfo('+ |
|
| $grid.="javascript:opener.displayinfo('+"; |
|
| # "'"+'key |
|
| $grid.="\"'\"+'"; |
|
| $grid.=$sk; |
|
| my $hc; |
|
| if ($rhash{$sk} eq 'con_lost') { |
|
| $hc="!!!BAD CONNECTION, CONTACT SYSTEM ADMINISTRATOR!!!"; |
|
| } |
|
| else { |
|
| $hc="'+\"'\"+\"+hc['$sk']+\"+\"'\"+'"; |
|
| $hcinit.="hc[\"$sk\"]=\"not yet connected...\";"; |
|
| } |
|
| $grid.=" hitcount=".$hc; |
|
| $grid.=" domain=".$hostdomains{$sk}; |
|
| $grid.=" IP=".$hostips{$sk}; |
|
| # '+"'"+'">'+ |
|
| $grid.="'+\"'\"+')\">'+"; |
|
| $grid.="\n"; |
|
| $grid.="'<img border=\"0\" name=\"img".$sn."\"". |
|
| " src=\"/adm/lonIcons/srvnull.gif\" alt=\"".$sk."\" /></a>'+\n"; |
|
| $grid.="'<br />'+\n" unless $sn%10; |
|
| $sn++; |
|
| } |
|
| $r->print(<<ENDPOP); |
|
| <script type="text/javascript"> |
|
| popwin=open('','popwin','scrollbars=1,width=400,height=200'); |
|
| popwin.focus(); |
|
| popwin.document.writeln('<'+'html>'); |
|
| popwin.document.writeln('<'+'head>'); |
|
| popwin.document.writeln('<'+'script>'); |
|
| popwin.document.writeln('hc=new Array();$hcinit'); |
|
| popwin.document.writeln('<'+'/script>'); |
|
| popwin.document.writeln('<'+'/head>'+ |
|
| '<'+'body bgcolor="#FFFFFF">'+ |
|
| '<'+'image name="whirly" align="right" src="/adm/lonIcons/'+ |
|
| 'lonanim.gif" '+ |
|
| 'alt="animated logo" />'+ |
|
| '<'+'h3>Search Results Progress<'+'/h3>'+ |
|
| '<'+'form name="popremain">'+ |
|
| '<'+'tt>'+ |
|
| '<'+'br clear="all"/><i>PLEASE BE PATIENT</i>'+ |
|
| '<'+'br />SCANNING $servernum SERVERS'+ |
|
| '<'+'br clear="all" />Number of record hits found '+ |
|
| '<'+'input type="text" size="10" name="numhits"'+ |
|
| ' value="0" />'+ |
|
| '<'+'br clear="all" />Time elapsed '+ |
|
| '<'+'input type="text" size="10" name="elapsetime"'+ |
|
| ' value="0" />'+ |
|
| '<'+'br />'+ |
|
| 'SERVER GRID (click on any cell for details)'+ |
|
| $grid |
|
| '<'+'br />'+ |
|
| 'Server details '+ |
|
| '<'+'input type="text" size="25" name="sdetails"'+ |
|
| ' value="" />'+ |
|
| '<'+'br />'+ |
|
| ' <'+'input type="button" name="button"'+ |
|
| ' value="abort search and view current results" '+ |
|
| ' onClick="javascript:opener.abortsearch()" />'+ |
|
| ' <'+'input type="button" name="button"'+ |
|
| ' value="help" onClick="javascript:opener.openhelp()" />'+ |
|
| '<'+'/tt>'+ |
|
| '<'+'/form>'+ |
|
| '<'+'/body><'+'/html>'); |
|
| popwin.document.close(); |
|
| </script> |
|
| ENDPOP |
|
| $r->rflush(); |
$r->rflush(); |
| |
} |
| |
|
| my $servercount=0; |
{ |
| my $hitcountsum=0; |
my $max_time = 40; # seconds for the search to complete |
| my $bloop=$servernum; |
my $start_time = 0; |
| my %orkey; |
my $last_time = 0; |
| BLOOP: while(1) { |
|
| my $sn=0; |
|
| last BLOOP unless $bloop; |
|
| last BLOOP unless $timeremain; |
|
| RLOOP: foreach my $rkey (sort keys %rhash) { |
|
| $sn++; |
|
| next RLOOP if $orkey{$rkey}; |
|
| $servercount++; |
|
| $tflag=1; |
|
| $compiledresult=''; |
|
| my $hostname=$rkey; |
|
| my $reply=$rhash{$rkey}; |
|
| my @results; |
|
| |
|
| my $replyfile=''; |
|
| |
|
| if ($reply eq 'con_lost') { |
|
| $r->print('<script type="text/javascript">popwin.document.img'. |
|
| $sn.'.'. |
|
| 'src="/adm/lonIcons/srvbad.gif";</script>'. |
|
| "\n"); |
|
| $r->rflush(); |
|
| $bloop--; |
|
| $orkey{$rkey}=1; |
|
| } |
|
| else { |
|
| $reply=~/^([\.\w]+)$/; # must do since 'use strict' checks for tainting |
|
| $replyfile=$r->dir_config('lonDaemons').'/tmp/'.$1; |
|
| $reply=~/(.*?)\_/; |
|
| { |
|
| my $temp=0; |
|
| WLOOP: while (1) { |
|
| if (-e $replyfile && $tflag) { |
|
| $r->print('<script type="text/javascript">'. |
|
| 'popwin.document.img'.$sn.'.'. |
|
| 'src="/adm/lonIcons/srvhalf.gif";</script>'. |
|
| "\n"); |
|
| $r->rflush(); |
|
| $r->print('<script type="text/javascript">'. |
|
| 'popwin.hc["'.$rkey.'"]='. |
|
| '"still transferring..."'.';</script>'. |
|
| "\n"); |
|
| $r->rflush(); |
|
| $tflag=0; |
|
| } |
|
| if (-e "$replyfile.end") { |
|
| $bloop--; |
|
| $orkey{$rkey}=1; |
|
| if (-s $replyfile) { |
|
| $r->print('<script type="text/javascript">'. |
|
| 'popwin.document.img'.$sn.'.'. |
|
| 'src="/adm/lonIcons/srvgood.gif";'. |
|
| '</script>'."\n"); |
|
| $r->rflush(); |
|
| my $fh=Apache::File->new($replyfile) or |
|
| ($r->print('ERROR: file '. |
|
| $replyfile.' cannot be opened') and |
|
| return OK); |
|
| @results=<$fh> if $fh; |
|
| $hitcount{$rkey}=@results+0; |
|
| $r->print('<script type="text/javascript">'. |
|
| 'popwin.hc["'.$rkey.'"]='. |
|
| $hitcount{$rkey}.';</script>'. |
|
| "\n"); |
|
| $r->rflush(); |
|
| $hitcountsum+=$hitcount{$rkey}; |
|
| $r->print('<script type="text/javascript">'. |
|
| 'popwin.document.forms.popremain.'. |
|
| 'numhits.value='.$hitcountsum. |
|
| ';</script>'. |
|
| "\n"); |
|
| $r->rflush(); |
|
| } |
|
| else { |
|
| $r->print('<script type="text/javascript">'. |
|
| 'popwin.document.img'.$sn.'.'. |
|
| 'src="/adm/lonIcons/srvempty.gif";'. |
|
| '</script>'. |
|
| "\n"); |
|
| $r->rflush(); |
|
| $r->print('<script type="text/javascript">'. |
|
| 'popwin.hc["'.$rkey.'"]=0'. |
|
| ';</script>'. |
|
| "\n"); |
|
| $r->rflush(); |
|
| } |
|
| last WLOOP; |
|
| } |
|
| if ($temp>1) { |
|
| sleep 1; |
|
| $timeremain--; |
|
| $elapsetime++; |
|
| last WLOOP; |
|
| } |
|
| last WLOOP unless $timeremain; |
|
| sleep 1; |
|
| $timeremain--; |
|
| $elapsetime++; |
|
| $r->print('<script type="text/javascript">'. |
|
| 'popwin.document.popremain.elapsetime.'. |
|
| 'value="'.$elapsetime.'";</script>'."\n"); |
|
| $r->rflush(); |
|
| $temp++; |
|
| } |
|
| } |
|
| $r->print('<script type="text/javascript">'. |
|
| 'popwin.document.whirly.'. |
|
| 'src="'.'/adm/lonIcons/lonanimend.gif'. |
|
| '";</script>'."\n"); |
|
| $r->rflush(); |
|
| } |
|
| my $customshow=''; |
|
| my $extrashow=''; |
|
| my @customfields; |
|
| if ($ENV{'form.customshow'}) { |
|
| $customshow=$ENV{'form.customshow'}; |
|
| $customshow=~s/[^\w\s]//g; |
|
| my @fields=map {"<font color=\"#008000\">$_:</font><!-- $_ -->"} |
|
| split(/\s+/,$customshow); |
|
| @customfields=split(/\s+/,$customshow); |
|
| if ($customshow) { |
|
| $extrashow="<ul><li>".join("</li><li>",@fields)."</li></ul>\n"; |
|
| } |
|
| } |
|
| my $customdata=''; |
|
| my %customhash; |
|
| foreach my $result (@results) { |
|
| if ($result=~/^(custom\=.*)$/) { # grab all custom metadata |
|
| my $tmp=$result; |
|
| $tmp=~s/^custom\=//; |
|
| my ($k,$v)=map {&Apache::lonnet::unescape($_); |
|
| } split(/\,/,$tmp); |
|
| $customhash{$k}=$v; |
|
| } |
|
| } |
|
| if (keys %hash) { |
|
| untie %hash; |
|
| } |
|
| if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT,0640)) { |
|
| if ($ENV{'form.launch'} eq '1') { |
|
| &start_fresh_session(); |
|
| } |
|
| foreach my $result (@results) { |
|
| next if $result=~/^custom\=/; |
|
| chomp $result; |
|
| next unless $result; |
|
| my @fields=map |
|
| {&Apache::lonnet::unescape($_)} |
|
| (split(/\,/,$result)); |
|
| my ($title,$author,$subject,$url,$keywords,$version, |
|
| $notes,$abstract,$mime,$lang, |
|
| $creationdate,$lastrevisiondate,$owner,$copyright)=@fields; |
|
| |
|
| unless ($ENV{'user.adv'}) { |
|
| $keywords='<i>- not displayed -</i>'; |
|
| $fields[4]=$keywords; |
|
| $notes='<i>- not displayed -</i>'; |
|
| $fields[6]=$notes; |
|
| $abstract='<i>- not displayed -</i>'; |
|
| $fields[7]=$abstract; |
|
| $subject='<i>- not displayed -</i>'; |
|
| $fields[2]=$subject; |
|
| } |
|
| |
|
| my $shortabstract=$abstract; |
|
| $shortabstract=substr($abstract,0,200).'...' if length($abstract)>200; |
|
| $fields[7]=$shortabstract; |
|
| my $shortkeywords=$keywords; |
|
| $shortkeywords=substr($keywords,0,200).'...' if length($keywords)>200; |
|
| $fields[4]=$shortkeywords; |
|
| |
|
| my $extrashow2=$extrashow; |
|
| if ($extrashow) { |
|
| foreach my $field (@customfields) { |
|
| my $value=''; |
|
| if ($customhash{$url}=~/\<${field}[^\>]*\>(.*?)\<\/${field}[^\>]*\>/s) { |
|
| $value=$1; |
|
| } |
|
| $extrashow2=~s/\<\!\-\- $field \-\-\>/ $value/g; |
|
| } |
|
| } |
|
| |
|
| $compiledresult.=<<END if $compiledresult or $servercount!=$servernum; |
|
| <hr align='left' width='200' noshade /> |
|
| END |
|
| $compiledresult.=<<END; |
|
| <p> |
|
| END |
|
| $compiledresult.=<<END if $ENV{'form.catalogmode'} eq 'interactive'; |
|
| <font size='-1'><INPUT TYPE="button" NAME="returnvalues" VALUE="SELECT" |
|
| onClick="javascript:select_data('$title','$url')"> |
|
| </font> |
|
| <br /> |
|
| END |
|
| if ($ENV{'form.catalogmode'} eq 'groupsearch') { |
|
| $fnum+=0; |
|
| $hash{"pre_${fnum}_link"}=$url; |
|
| $hash{"pre_${fnum}_title"}=$title; |
|
| $compiledresult.=<<END; |
|
| <font size='-1'><input type="checkbox" name="returnvalues" value="SELECT" |
|
| onClick="javascript:queue($fnum)" /> |
|
| </font> |
|
| <br /> |
|
| END |
|
| # <input type="hidden" name="title$fnum" value="$title" /> |
|
| # <input type="hidden" name="url$fnum" value="$url" /> |
|
| $fnum++; |
|
| } |
|
| my $httphost=$ENV{'HTTP_HOST'}; |
|
| |
|
| my $viewselect; |
|
| if ($mode eq 'Basic') { |
|
| $viewselect=$ENV{'form.basicviewselect'}; |
|
| } |
|
| elsif ($mode eq 'Advanced') { |
|
| $viewselect=$ENV{'form.advancedviewselect'}; |
|
| } |
|
| |
|
| if ($viewselect eq 'Detailed Citation View') { |
|
| $compiledresult.=&detailed_citation_view(@fields, |
|
| $hostname,$httphost, |
|
| $extrashow2); |
|
| } |
|
| elsif ($viewselect eq 'Summary View') { |
|
| $compiledresult.=&summary_view(@fields,$hostname,$httphost, |
|
| $extrashow2); |
|
| } |
|
| elsif ($viewselect eq 'Fielded Format') { |
|
| $compiledresult.=&fielded_format_view(@fields,$hostname, |
|
| $httphost,$extrashow2); |
|
| } |
|
| elsif ($viewselect eq 'XML/SGML') { |
|
| $compiledresult.=&xml_sgml_view(@fields,$hostname,$httphost, |
|
| $extrashow2); |
|
| } |
|
| |
|
| } |
|
| |
|
| untie %hash; |
sub reset_timing { |
| } |
$start_time = 0; |
| else { |
$last_time = 0; |
| $r->print('<html><head></head><body>Unable to tie hash to db '. |
} |
| 'file</body></html>'); |
|
| } |
|
| if ($compiledresult) { |
|
| $resultflag=1; |
|
| } |
|
| |
|
| $r->print(<<RESULTS); |
sub time_left { |
| $compiledresult |
if ($start_time == 0) { |
| RESULTS |
$start_time = time; |
| my $percent=sprintf('%3.0f',($servercount/$servernum*100)); |
|
| } |
|
| } |
|
| unless ($resultflag) { |
|
| $r->print("\nThere were no results that matched your query\n"); |
|
| } |
} |
| # $r->print('<script type="text/javascript">'.'popwin.close()</script>'."\n"); $r->rflush(); |
my $time_left = $max_time - (time - $start_time); |
| $r->print(<<RESULTS); |
$time_left = 0 if ($time_left < 0); |
| </body> |
return $time_left; |
| </html> |
|
| RESULTS |
|
| } |
} |
| |
|
| # ------------------------------------------------------ Detailed Citation View |
sub update_seconds { |
| sub detailed_citation_view { |
my ($r) = @_; |
| my ($title,$author,$subject,$url,$keywords,$version, |
my $time = &time_left(); |
| $notes,$shortabstract,$mime,$lang, |
if (($last_time-$time) > 0) { |
| $creationdate,$lastrevisiondate,$owner,$copyright, |
$r->print("<script>". |
| $hostname,$httphost,$extrashow)=@_; |
"document.statusform.seconds.value = '$time'". |
| my $result=<<END; |
"</script>\n"); |
| <i>$owner</i>, last revised $lastrevisiondate |
$r->rflush(); |
| <h3><A HREF="http://$httphost$url" TARGET='search_preview'>$title</A></h3> |
} |
| <h3>$author</h3> |
$last_time = $time; |
| </p> |
|
| <p> |
|
| <b>Subject:</b> $subject<br /> |
|
| <b>Keyword(s):</b> $keywords<br /> |
|
| <b>Notes:</b> $notes<br /> |
|
| <b>MIME Type:</b> $mimetag{$mime}<br /> |
|
| <b>Language:</b> $language{$lang}<br /> |
|
| <b>Copyright/Distribution:</b> $cprtag{$copyright}<br /> |
|
| </p> |
|
| $extrashow |
|
| <p> |
|
| $shortabstract |
|
| </p> |
|
| END |
|
| return $result; |
|
| } |
} |
| |
|
| # ---------------------------------------------------------------- Summary View |
|
| sub summary_view { |
|
| my ($title,$author,$subject,$url,$keywords,$version, |
|
| $notes,$shortabstract,$mime,$lang, |
|
| $creationdate,$lastrevisiondate,$owner,$copyright, |
|
| $hostname,$httphost,$extrashow)=@_; |
|
| my $result=<<END; |
|
| <a href="http://$httphost$url" TARGET='search_preview'>$author</a><br /> |
|
| $title<br /> |
|
| $owner -- $lastrevisiondate<br /> |
|
| $cprtag{$copyright}<br /> |
|
| $extrashow |
|
| </p> |
|
| END |
|
| return $result; |
|
| } |
} |
| |
|
| # -------------------------------------------------------------- Fielded Format |
###################################################################### |
| sub fielded_format_view { |
###################################################################### |
| my ($title,$author,$subject,$url,$keywords,$version, |
|
| $notes,$shortabstract,$mime,$lang, |
|
| $creationdate,$lastrevisiondate,$owner,$copyright, |
|
| $hostname,$httphost,$extrashow)=@_; |
|
| my $result=<<END; |
|
| <b>URL: </b> <A HREF="http://$httphost$url" TARGET='search_preview'>$url</A> |
|
| <br /> |
|
| <b>Title:</b> $title<br /> |
|
| <b>Author(s):</b> $author<br /> |
|
| <b>Subject:</b> $subject<br /> |
|
| <b>Keyword(s):</b> $keywords<br /> |
|
| <b>Notes:</b> $notes<br /> |
|
| <b>MIME Type:</b> $mimetag{$mime}<br /> |
|
| <b>Language:</b> $language{$lang}<br /> |
|
| <b>Creation Date:</b> $creationdate<br /> |
|
| <b>Last Revision Date:</b> $lastrevisiondate<br /> |
|
| <b>Publisher/Owner:</b> $owner<br /> |
|
| <b>Copyright/Distribution:</b> $cprtag{$copyright}<br /> |
|
| <b>Repository Location:</b> $hostname<br /> |
|
| <b>Abstract:</b> $shortabstract<br /> |
|
| $extrashow |
|
| </p> |
|
| END |
|
| return $result; |
|
| } |
|
| |
|
| # -------------------------------------------------------------------- XML/SGML |
=pod |
| sub xml_sgml_view { |
|
| my ($title,$author,$subject,$url,$keywords,$version, |
=item &revise_button() |
| $notes,$shortabstract,$mime,$lang, |
|
| $creationdate,$lastrevisiondate,$owner,$copyright, |
Inputs: None |
| $hostname,$httphost,$extrashow)=@_; |
|
| my $result=<<END; |
Returns: html string for a 'revise search' button. |
| <pre> |
|
| <LonCapaResource> |
=cut |
| <url>$url</url> |
|
| <title>$title</title> |
###################################################################### |
| <author>$author</author> |
###################################################################### |
| <subject>$subject</subject> |
sub revise_button { |
| <keywords>$keywords</keywords> |
my $revise_phase = 'disp_basic'; |
| <notes>$notes</notes> |
$revise_phase = 'disp_adv' if ($ENV{'form.searchmode'} eq 'advanced'); |
| <mimeInfo> |
my $newloc = '/adm/searchcat'. |
| <mime>$mime</mime> |
'?persistent_db_id='.$ENV{'form.persistent_db_id'}. |
| <mimetag>$mimetag{$mime}</mimetag> |
'&cleargroupsort=1'. |
| </mimeInfo> |
'&phase='.$revise_phase; |
| <languageInfo> |
my $result = qq{<input type="button" value="Revise search" name="revise"} . |
| <language>$lang</language> |
qq{ onClick="parent.location='$newloc';" /> }; |
| <languagetag>$language{$lang}</languagetag> |
|
| </languageInfo> |
|
| <creationdate>$creationdate</creationdate> |
|
| <lastrevisiondate>$lastrevisiondate</lastrevisiondate> |
|
| <owner>$owner</owner> |
|
| <copyrightInfo> |
|
| <copyright>$copyright</copyright> |
|
| <copyrighttag>$cprtag{$copyright}</copyrighttag> |
|
| </copyrightInfo> |
|
| <repositoryLocation>$hostname</repositoryLocation> |
|
| <shortabstract>$shortabstract</shortabstract> |
|
| </LonCapaResource> |
|
| </pre> |
|
| $extrashow |
|
| END |
|
| return $result; |
return $result; |
| } |
} |
| |
|
| # ---------------------------------------------------- see if a field is filled |
###################################################################### |
| sub filled { |
###################################################################### |
| my ($field)=@_; |
|
| if ($field=~/\S/ && $field ne 'any') { |
=pod |
| return 1; |
|
| |
=item &run_search() |
| |
|
| |
Executes a search query by sending it the the other servers and putting the |
| |
results into MySQL. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub run_search { |
| |
my ($r,$query,$customquery,$customshow,$serverlist,$pretty_string) = @_; |
| |
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1); |
| |
$bodytag.=&Apache::lonhtmlcommon::breadcrumbs |
| |
(undef,'Searching','Searching',undef,undef, |
| |
$ENV{'form.catalogmode'} ne 'groupsearch'); |
| |
my $connection = $r->connection; |
| |
# |
| |
# Print run_search header |
| |
# |
| |
$r->print(<<END); |
| |
<html> |
| |
<head><title>Search Status</title></head> |
| |
$bodytag |
| |
<form name="statusform" action="" method="post"> |
| |
<input type="hidden" name="Queue" value="" /> |
| |
END |
| |
# Remove leading and trailing <br /> |
| |
$pretty_string =~ s:^\s*<br />::i; |
| |
$pretty_string =~ s:(<br />)*\s*$::im; |
| |
my @Lines = split("<br />",$pretty_string); |
| |
# I keep getting blank items at the end of the list, hence the following: |
| |
while ($Lines[-1] =~ /^\s*$/ && @Lines) { |
| |
pop(@Lines); |
| } |
} |
| else { |
if (@Lines > 2) { |
| return 0; |
$pretty_string = join '<br />',(@Lines[0..2],'....<br />'); |
| |
} |
| |
$r->print(&mt("Search: [_1]",$pretty_string)); |
| |
$r->rflush(); |
| |
# |
| |
# Determine the servers we need to contact. |
| |
my @Servers_to_contact; |
| |
if (defined($serverlist)) { |
| |
if (ref($serverlist) eq 'ARRAY') { |
| |
@Servers_to_contact = @$serverlist; |
| |
} else { |
| |
@Servers_to_contact = ($serverlist); |
| |
} |
| |
} else { |
| |
@Servers_to_contact = sort(keys(%Apache::lonnet::libserv)); |
| |
} |
| |
my %Server_status; |
| |
# |
| |
# Check on the mysql table we will use to store results. |
| |
my $table =$ENV{'form.table'}; |
| |
if (! defined($table) || $table eq '' || $table =~ /\D/ ) { |
| |
$r->print("Unable to determine table id to store search results in.". |
| |
"The search has been aborted.</body></html>"); |
| |
return; |
| |
} |
| |
my $table_status = &Apache::lonmysql::check_table($table); |
| |
if (! defined($table_status)) { |
| |
$r->print("Unable to determine status of table.</body></html>"); |
| |
&Apache::lonnet::logthis("Bogus table id of $table for ". |
| |
"$ENV{'user.name'} @ $ENV{'user.domain'}"); |
| |
&Apache::lonnet::logthis("lonmysql error = ". |
| |
&Apache::lonmysql::get_error()); |
| |
return; |
| |
} |
| |
if (! $table_status) { |
| |
&Apache::lonnet::logthis("lonmysql error = ". |
| |
&Apache::lonmysql::get_error()); |
| |
&Apache::lonnet::logthis("lonmysql debug = ". |
| |
&Apache::lonmysql::get_debug()); |
| |
&Apache::lonnet::logthis('table status = "'.$table_status.'"'); |
| |
$r->print("The table id,$table, we tried to use is invalid.". |
| |
"The search has been aborted.</body></html>"); |
| |
return; |
| |
} |
| |
## |
| |
## Prepare for the big loop. |
| |
my $hitcountsum; |
| |
my $server; |
| |
my $status; |
| |
my $revise = &revise_button(); |
| |
$r->print(<<END); |
| |
<table> |
| |
<tr><th>Status</th><th>Total Matches</th><th>Time Remaining</th><th></th></tr> |
| |
<tr> |
| |
<td><input type="text" name="status" value="" size="30" /></td> |
| |
<td><input type="text" name="count" value="" size="10" /></td> |
| |
<td><input type="text" name="seconds" value="" size="8" /></td> |
| |
<td>$revise</td> |
| |
</tr> |
| |
</table> |
| |
</form> |
| |
END |
| |
$r->rflush(); |
| |
&reset_timing(); |
| |
&update_seconds($r); |
| |
&update_status($r,&mt('contacting [_1]',$Servers_to_contact[0])); |
| |
while (&time_left() && |
| |
((@Servers_to_contact) || keys(%Server_status))) { |
| |
&update_seconds($r); |
| |
# |
| |
# Send out a search request |
| |
if (@Servers_to_contact) { |
| |
# Contact one server |
| |
my $server = shift(@Servers_to_contact); |
| |
&update_status($r,&mt('contacting [_1]',$server)); |
| |
my $reply=&Apache::lonnet::metadata_query($query,$customquery, |
| |
$customshow,[$server]); |
| |
($server) = keys(%$reply); |
| |
$Server_status{$server} = $reply->{$server}; |
| |
} else { |
| |
# wait a sec. to give time for files to be written |
| |
# This sleep statement is here instead of outside the else |
| |
# block because we do not want to pause if we have servers |
| |
# left to contact. |
| |
if (scalar (keys(%Server_status))) { |
| |
&update_status($r, |
| |
&mt('waiting on [_1]',join(' ',keys(%Server_status)))); |
| |
} |
| |
sleep(1); |
| |
} |
| |
# |
| |
# Loop through the servers we have contacted but do not |
| |
# have results from yet, looking for results. |
| |
foreach my $server (keys(%Server_status)) { |
| |
last if ($connection->aborted()); |
| |
&update_seconds($r); |
| |
my $status = $Server_status{$server}; |
| |
if ($status eq 'con_lost') { |
| |
delete ($Server_status{$server}); |
| |
next; |
| |
} |
| |
$status=~/^([\.\w]+)$/; |
| |
my $datafile=$r->dir_config('lonDaemons').'/tmp/'.$1; |
| |
if (-e $datafile && ! -e "$datafile.end") { |
| |
&update_status($r,&mt('Receiving results from [_1]',$server)); |
| |
next; |
| |
} |
| |
last if ($connection->aborted()); |
| |
if (-e "$datafile.end") { |
| |
&update_status($r,&mt('Reading results from [_1]',$server)); |
| |
if (-z "$datafile") { |
| |
delete($Server_status{$server}); |
| |
next; |
| |
} |
| |
my $fh; |
| |
if (!($fh=Apache::File->new($datafile))) { |
| |
$r->print("Unable to open search results file for ". |
| |
"server $server. Omitting from search"); |
| |
delete($Server_status{$server}); |
| |
next; |
| |
} |
| |
# Read in the whole file. |
| |
while (my $result = <$fh>) { |
| |
last if ($connection->aborted()); |
| |
# |
| |
# Records are stored one per line |
| |
chomp($result); |
| |
next if (! $result); |
| |
# |
| |
# Parse the result. |
| |
my %Fields = &parse_raw_result($result,$server); |
| |
$Fields{'hostname'} = $server; |
| |
# |
| |
# Skip based on copyright |
| |
next if (! ©right_check(\%Fields)); |
| |
# |
| |
# Store the result in the mysql database |
| |
my $result = &Apache::lonmysql::store_row($table,\%Fields); |
| |
if (! defined($result)) { |
| |
$r->print(&Apache::lonmysql::get_error()); |
| |
} |
| |
# |
| |
$hitcountsum ++; |
| |
&update_seconds($r); |
| |
if ($hitcountsum % 50 == 0) { |
| |
&update_count_status($r,$hitcountsum); |
| |
} |
| |
} |
| |
$fh->close(); |
| |
# $server is only deleted if the results file has been |
| |
# found and (successfully) opened. This may be a bad idea. |
| |
delete($Server_status{$server}); |
| |
} |
| |
last if ($connection->aborted()); |
| |
&update_count_status($r,$hitcountsum); |
| |
} |
| |
last if ($connection->aborted()); |
| |
&update_seconds($r); |
| } |
} |
| |
&update_status($r,&mt('Search Complete [_1]',$server)); |
| |
&update_seconds($r); |
| |
# |
| |
&Apache::lonmysql::disconnect_from_db(); # This is unneccessary |
| |
# |
| |
# We have run out of time or run out of servers to talk to and |
| |
# results to get, so let the client know the top frame needs to be |
| |
# loaded from /adm/searchcat |
| |
$r->print("</body></html>"); |
| |
# if ($ENV{'form.catalogmode'} ne 'groupsearch') { |
| |
$r->print("<script>". |
| |
"window.location='/adm/searchcat?". |
| |
"phase=sort&". |
| |
"persistent_db_id=$ENV{'form.persistent_db_id'}';". |
| |
"</script>"); |
| |
# } |
| |
return; |
| } |
} |
| |
|
| # ---------------- Message to output when there are not enough fields filled in |
###################################################################### |
| sub output_blank_field_error { |
###################################################################### |
| my ($r)=@_; |
|
| # make query information persistent to allow for subsequent revision |
|
| my $persistent=&make_persistent(); |
|
| |
|
| $r->print(<<BEGINNING); |
=pod |
| <html> |
|
| <head> |
=item &prev_next_buttons() |
| <title>The LearningOnline Network with CAPA</title> |
|
| BEGINNING |
Returns html for the previous and next buttons on the search results page. |
| $r->print(<<RESULTS); |
|
| </head> |
=cut |
| <body bgcolor="#ffffff"> |
|
| <img align='right' src='/adm/lonIcons/lonlogos.gif' /> |
###################################################################### |
| <h1>Search Catalog</h1> |
###################################################################### |
| <form method="post" action="/adm/searchcat"> |
sub prev_next_buttons { |
| $persistent |
my ($current_min,$show,$total,$parms) = @_; |
| <input type='button' value='Revise search request' |
return '' if ($show eq 'all'); # No links if you get them all at once. |
| onClick='this.form.submit();' /> |
# |
| $closebutton |
# Create buttons |
| <hr /> |
my $buttons = '<input type="submit" name="prev" value="'.&mt('Prev').'" '; |
| <h3>Helpful Message</h3> |
$buttons .= '/>'; |
| <p> |
$buttons .= ' 'x3; |
| Incorrect search query due to blank entry fields. |
$buttons .= '<input type="submit" name="reload" '. |
| You need to fill in the relevant |
'value="'.&mt('Reload').'" />'; |
| fields on the search page in order for a query to be |
$buttons .= ' 'x3; |
| processed. |
$buttons .= '<input type="submit" name="next" value="'.&mt('Next').'" '; |
| </p> |
$buttons .= '/>'; |
| </body> |
return $buttons; |
| </html> |
|
| RESULTS |
|
| } |
} |
| |
|
| # ----------------------------------------------------------- Output date error |
###################################################################### |
| sub output_date_error { |
###################################################################### |
| my ($r,$message)=@_; |
|
| # make query information persistent to allow for subsequent revision |
|
| my $persistent=&make_persistent(); |
|
| |
|
| $r->print(<<BEGINNING); |
=pod |
| <html> |
|
| <head> |
=item &display_results() |
| <title>The LearningOnline Network with CAPA</title> |
|
| BEGINNING |
Prints the results out for selection and perusal. |
| $r->print(<<RESULTS); |
|
| </head> |
=cut |
| <body bgcolor="#ffffff"> |
|
| <img align='right' src='/adm/lonIcons/lonlogos.gif' /> |
###################################################################### |
| <h1>Search Catalog</h1> |
###################################################################### |
| <form method="post" action="/adm/searchcat"> |
sub display_results { |
| $persistent |
my ($r,$importbutton,$closebutton,$diropendb) = @_; |
| <input type='button' value='Revise search request' |
my $connection = $r->connection; |
| onClick='this.form.submit();' /> |
$r->print(&search_results_header($importbutton,$closebutton)); |
| $closebutton |
## |
| <hr /> |
## Set viewing function |
| <h3>Helpful Message</h3> |
## |
| <p> |
my $viewfunction = $Views{$ENV{'form.viewselect'}}; |
| $message |
if (!defined($viewfunction)) { |
| </p> |
$r->print("Internal Error - Bad view selected.\n"); |
| </body> |
$r->rflush(); |
| </html> |
return; |
| RESULTS |
} |
| |
## |
| |
## $checkbox_num is a count of the number of checkboxes output on the |
| |
## page this is used only during catalogmode=groupsearch. |
| |
my $checkbox_num = 0; |
| |
## |
| |
## Get the catalog controls setup |
| |
## |
| |
my $action = "/adm/searchcat?phase=results"; |
| |
## |
| |
## Deal with groupsearch by opening the groupsearch db file. |
| |
if ($ENV{'form.catalogmode'} eq 'groupsearch') { |
| |
if (! tie(%groupsearch_db,'GDBM_File',$diropendb, |
| |
&GDBM_WRCREAT(),0640)) { |
| |
$r->print('Unable to store import results.</form></body></html>'); |
| |
$r->rflush(); |
| |
return; |
| |
} |
| |
} |
| |
## |
| |
## Prepare the table for querying |
| |
my $table = $ENV{'form.table'}; |
| |
return if (! &ensure_db_and_table($r,$table)); |
| |
## |
| |
## Get the number of results |
| |
my $total_results = &Apache::lonmysql::number_of_rows($table); |
| |
if (! defined($total_results)) { |
| |
$r->print("A MySQL error has occurred.</form></body></html>"); |
| |
&Apache::lonnet::logthis("lonmysql was unable to determine the number". |
| |
" of rows in table ".$table); |
| |
&Apache::lonnet::logthis(&Apache::lonmysql::get_error()); |
| |
return; |
| |
} |
| |
## |
| |
## Determine how many results we need to get |
| |
$ENV{'form.start'} = 1 if (! exists($ENV{'form.start'})); |
| |
$ENV{'form.show'} = 20 if (! exists($ENV{'form.show'})); |
| |
if (exists($ENV{'form.prev'})) { |
| |
$ENV{'form.start'} -= $ENV{'form.show'}; |
| |
} elsif (exists($ENV{'form.next'})) { |
| |
$ENV{'form.start'} += $ENV{'form.show'}; |
| |
} |
| |
$ENV{'form.start'} = 1 if ($ENV{'form.start'}<1); |
| |
$ENV{'form.start'} = $total_results if ($ENV{'form.start'}>$total_results); |
| |
my $min = $ENV{'form.start'}; |
| |
my $max; |
| |
if ($ENV{'form.show'} eq 'all') { |
| |
$max = $total_results ; |
| |
} else { |
| |
$max = $min + $ENV{'form.show'} - 1; |
| |
$max = $total_results if ($max > $total_results); |
| |
} |
| |
## |
| |
## Output form elements |
| |
$r->print(&hidden_field('table'). |
| |
&hidden_field('phase'). |
| |
&hidden_field('persistent_db_id'). |
| |
&hidden_field('start') |
| |
); |
| |
# |
| |
# Build sorting selector |
| |
my @field_order = ('default', |
| |
'title', |
| |
'author', |
| |
'subject', |
| |
'url', |
| |
'keywords', |
| |
'version', |
| |
'language', |
| |
'creationdate'=>, |
| |
'lastrevisiondate', |
| |
'owner', |
| |
'copyright', |
| |
'authorspace', |
| |
'lowestgradeleve', |
| |
'highestgradelevel', |
| |
'standards', |
| |
'count', |
| |
'stdno', |
| |
'avetries', |
| |
'difficulty', |
| |
'disc', |
| |
'clear', |
| |
'technical', |
| |
'correct', |
| |
'helpful', |
| |
'depth', |
| |
); |
| |
my %sort_fields = ('default' => 'Default', |
| |
'title' => 'Title', |
| |
'author' => 'Author', |
| |
'subject' => 'Subject', |
| |
'url' => 'URL', |
| |
'keywords' => 'Keywords', |
| |
'version' => 'Version', |
| |
'language' => 'Language', |
| |
'creationdate'=> 'Creation Date', |
| |
'lastrevisiondate' => 'Last Revision Date', |
| |
'owner' => 'Owner', |
| |
'copyright' => 'Copyright', |
| |
'authorspace' => 'Authorspace', |
| |
'lowestgradeleve' => 'Lowest Grade Level', |
| |
'highestgradelevel' => 'Highest Grade Level', |
| |
'standards' => 'Standards', |
| |
'count' => 'Number of Accesses', |
| |
'stdno' => 'Students Attempting', |
| |
'avetries' => 'Average Number of Tries', |
| |
'difficulty' => 'Mean Degree of Difficulty', |
| |
'disc' => 'Mean Degree of Discrimination', |
| |
'clear' => 'Evaluation: Clear', |
| |
'technical' => 'Evaluation: Technically Correct', |
| |
'correct' => 'Evaluation: Material is Correct', |
| |
'helpful' => 'Evaluation: Material is Helpful', |
| |
'depth' => 'Evaluation: Material has Depth', |
| |
'select_form_order' => \@field_order, |
| |
); |
| |
|
| |
my $sortform = &mt('Sort by [_1]', |
| |
&Apache::loncommon::select_form($ENV{'form.sortfield'}, |
| |
'sortfield', |
| |
%sort_fields)); |
| |
## |
| |
## Output links (if necessary) for 'prev' and 'next' pages. |
| |
$r->print |
| |
('<table width="100%"><tr><td width="25%" align="right">'. |
| |
$sortform. |
| |
'</td><td width="25%" align="right">'. |
| |
&prev_next_buttons($min,$ENV{'form.show'},$total_results). |
| |
'</td><td align="right">'. |
| |
&viewoptions().'</td></tr></table>' |
| |
); |
| |
if ($total_results == 0) { |
| |
$r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2">'. |
| |
'<h3>'.&mt('There are currently no results').'.</h3>'. |
| |
"</form></body></html>"); |
| |
return; |
| |
} else { |
| |
$r->print('<center>'. |
| |
mt('Results [_1] to [_2] out of [_3]', |
| |
$min,$max,$total_results). |
| |
"</center>\n"); |
| |
} |
| |
## |
| |
## Get results from MySQL table |
| |
my $sort_command = 'id>='.$min.' AND id<='.$max; |
| |
if ($ENV{'form.sortfield'} ne 'default' && |
| |
exists($sort_fields{$ENV{'form.sortfield'}})) { |
| |
$sort_command = $ENV{'form.sortfield'}.' IS NOT NULL '. |
| |
'ORDER BY '.$ENV{'form.sortfield'}. |
| |
' LIMIT '.($min-1).','.($max-$min); |
| |
} |
| |
my @Results = &Apache::lonmysql::get_rows($table,$sort_command); |
| |
## |
| |
## Loop through the results and output them. |
| |
foreach my $row (@Results) { |
| |
if ($connection->aborted()) { |
| |
&cleanup(); |
| |
return; |
| |
} |
| |
my %Fields = %{&parse_row(@$row)}; |
| |
my $output="<p>\n"; |
| |
if (! defined($Fields{'title'}) || $Fields{'title'} eq '') { |
| |
$Fields{'title'} = 'Untitled'; |
| |
} |
| |
my $prefix=&catalogmode_output($Fields{'title'},$Fields{'url'}, |
| |
$Fields{'id'},$checkbox_num++); |
| |
# Render the result into html |
| |
$output.= &$viewfunction($prefix,%Fields); |
| |
# Print them out as they come in. |
| |
$r->print($output); |
| |
$r->rflush(); |
| |
} |
| |
if (@Results < 1) { |
| |
$r->print(&mt("There were no results matching your query")); |
| |
} else { |
| |
$r->print |
| |
('<center>'. |
| |
&prev_next_buttons($min,$ENV{'form.show'},$total_results, |
| |
"table=".$ENV{'form.table'}. |
| |
"&phase=results". |
| |
"&persistent_db_id=". |
| |
$ENV{'form.persistent_db_id'}) |
| |
."</center>\n" |
| |
); |
| |
} |
| |
$r->print("</form></body></html>"); |
| |
$r->rflush(); |
| |
untie %groupsearch_db if (tied(%groupsearch_db)); |
| |
return; |
| } |
} |
| |
|
| # --------- settings whenever the user causes the search window to be launched |
###################################################################### |
| sub start_fresh_session { |
###################################################################### |
| delete $hash{'mode_catalog'}; |
|
| foreach (keys %hash) { |
=pod |
| if ($_ =~ /^pre_/) { |
|
| delete $hash{$_}; |
=item &catalogmode_output($title,$url,$fnum,$checkbox_num) |
| |
|
| |
Returns html needed for the various catalog modes. Gets inputs from |
| |
$ENV{'form.catalogmode'}. Stores data in %groupsearch_db. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub catalogmode_output { |
| |
my $output = ''; |
| |
my ($title,$url,$fnum,$checkbox_num) = @_; |
| |
if ($ENV{'form.catalogmode'} eq 'interactive') { |
| |
$title=~ s/\'/\\\'/g; |
| |
if ($ENV{'form.catalogmode'} eq 'interactive') { |
| |
$output.=<<END |
| |
<font size='-1'><INPUT TYPE="button" NAME="returnvalues" VALUE="SELECT" |
| |
onClick="javascript:select_data('$title','$url')"> |
| |
</font> |
| |
END |
| } |
} |
| if ($_ =~ /^store/) { |
} elsif ($ENV{'form.catalogmode'} eq 'groupsearch') { |
| delete $hash{$_}; |
$groupsearch_db{"pre_${fnum}_link"}=$url; |
| } |
$groupsearch_db{"pre_${fnum}_title"}=$title; |
| |
$output.=<<END; |
| |
<font size='-1'> |
| |
<input type="checkbox" name="returnvalues" value="SELECT" |
| |
onClick="javascript:queue($checkbox_num,$fnum)" /> |
| |
</font> |
| |
END |
| } |
} |
| |
return $output; |
| } |
} |
| |
###################################################################### |
| |
###################################################################### |
| |
|
| 1; |
=pod |
| |
|
| __END__ |
=item &parse_row() |
| |
|
| =head1 NAME |
Parse a row returned from the database. |
| |
|
| Apache::lonsearchcat - mod_perl module for handling a searchable catalog |
=cut |
| |
|
| =head1 SYNOPSIS |
###################################################################### |
| |
###################################################################### |
| |
sub parse_row { |
| |
my @Row = @_; |
| |
my %Fields; |
| |
if (! scalar(@Datatypes)) { |
| |
&set_up_table_structure(); |
| |
} |
| |
for (my $i=0;$i<=$#Row;$i++) { |
| |
$Fields{$Datatypes[$i]->{'name'}}=&Apache::lonnet::unescape($Row[$i]); |
| |
} |
| |
$Fields{'language'} = |
| |
&Apache::loncommon::languagedescription($Fields{'language'}); |
| |
$Fields{'copyrighttag'} = |
| |
&Apache::loncommon::copyrightdescription($Fields{'copyright'}); |
| |
$Fields{'mimetag'} = |
| |
&Apache::loncommon::filedescription($Fields{'mime'}); |
| |
return \%Fields; |
| |
} |
| |
|
| Invoked by /etc/httpd/conf/srm.conf: |
########################################################### |
| |
########################################################### |
| |
|
| <Location /adm/searchcat> |
=pod |
| PerlAccessHandler Apache::lonacc |
|
| SetHandler perl-script |
|
| PerlHandler Apache::lonsearchcat |
|
| ErrorDocument 403 /adm/login |
|
| ErrorDocument 500 /adm/errorhandler |
|
| </Location> |
|
| |
|
| =head1 INTRODUCTION |
=item &parse_raw_result() |
| |
|
| This module enables searching for a distributed browseable catalog. |
Takes a line from the file of results and parse it. Returns a hash |
| |
with keys according to column labels |
| |
|
| This is part of the LearningOnline Network with CAPA project |
In addition, the following tags are set by calling the appropriate |
| described at http://www.lon-capa.org. |
lonnet function: 'language', 'copyrighttag', 'mimetag'. |
| |
|
| =head1 BEGIN SUBROUTINE |
The 'title' field is set to "Untitled" if the title field is blank. |
| |
|
| This routine is only run once after compilation. |
'abstract' and 'keywords' are truncated to 200 characters. |
| |
|
| =over 4 |
=cut |
| |
|
| =item * |
########################################################### |
| |
########################################################### |
| |
sub parse_raw_result { |
| |
my ($result,$hostname) = @_; |
| |
# conclude from self to others regarding fields |
| |
my %Fields=&LONCAPA::lonmetadata::metadata_col_to_hash |
| |
(map { |
| |
&Apache::lonnet::unescape($_); |
| |
} (split(/\,/,$result)) ); |
| |
return %Fields; |
| |
} |
| |
|
| Initializes %language hash table. |
########################################################### |
| |
########################################################### |
| |
|
| =item * |
=pod |
| |
|
| Initializes %cprtag hash table (for copyright.tab). |
=item &handle_custom_fields() |
| |
|
| =item * |
=cut |
| |
|
| Initializes %mimetag hash table (for filetypes.tab). |
########################################################### |
| |
########################################################### |
| |
sub handle_custom_fields { |
| |
my @results = @{shift()}; |
| |
my $customshow=''; |
| |
my $extrashow=''; |
| |
my @customfields; |
| |
if ($ENV{'form.customshow'}) { |
| |
$customshow=$ENV{'form.customshow'}; |
| |
$customshow=~s/[^\w\s]//g; |
| |
my @fields=map { |
| |
"<font color=\"#008000\">$_:</font><!-- $_ -->"; |
| |
} split(/\s+/,$customshow); |
| |
@customfields=split(/\s+/,$customshow); |
| |
if ($customshow) { |
| |
$extrashow="<ul><li>".join("</li><li>",@fields)."</li></ul>\n"; |
| |
} |
| |
} |
| |
my $customdata=''; |
| |
my %customhash; |
| |
foreach my $result (@results) { |
| |
if ($result=~/^(custom\=.*)$/) { # grab all custom metadata |
| |
my $tmp=$result; |
| |
$tmp=~s/^custom\=//; |
| |
my ($k,$v)=map {&Apache::lonnet::unescape($_); |
| |
} split(/\,/,$tmp); |
| |
$customhash{$k}=$v; |
| |
} |
| |
} |
| |
return ($extrashow,\@customfields,\%customhash); |
| |
} |
| |
|
| =item * |
###################################################################### |
| |
###################################################################### |
| |
|
| Initializes %hostdomains and hostips hash table (for hosts.tab). |
=pod |
| |
|
| =back |
=item &search_results_header() |
| |
|
| =head1 HANDLER SUBROUTINE |
Output the proper html headers and javascript code to deal with different |
| |
calling modes. |
| |
|
| This routine is called by Apache and mod_perl. |
Takes most inputs directly from %ENV, except $mode. |
| |
|
| =over 4 |
=over 4 |
| |
|
| =item * |
=item $mode is either (at this writing) 'Basic' or 'Advanced' |
| |
|
| configure dynamic components of interface |
=back |
| |
|
| =item * |
The following environment variables are checked: |
| |
|
| determine current user |
=over 4 |
| |
|
| =item * |
=item 'form.catalogmode' |
| |
|
| see if a search invocation should be done |
Checked for 'interactive' and 'groupsearch'. |
| |
|
| =item * |
=item 'form.mode' |
| |
|
| else, begin building search interface to output |
Checked for existance & 'edit' mode. |
| |
|
| =item * |
=item 'form.form' |
| |
|
| compute date selection boxes |
Contains the name of the form that has the input fields to set |
| |
|
| =item * |
=item 'form.element' |
| |
|
| compute customized metadata field |
the name of the input field to put the URL into |
| |
|
| =item * |
=item 'form.titleelement' |
| |
|
| print screen |
the name of the input field to put the title into |
| |
|
| =back |
=back |
| |
|
| =head1 OTHER SUBROUTINES |
=cut |
| |
|
| =over 4 |
###################################################################### |
| |
###################################################################### |
| |
sub search_results_header { |
| |
my ($importbutton,$closebutton) = @_; |
| |
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1); |
| |
my $result = ''; |
| |
# output beginning of search page |
| |
# conditional output of script functions dependent on the mode in |
| |
# which the search was invoked |
| |
if ($ENV{'form.catalogmode'} eq 'interactive'){ |
| |
if (! exists($ENV{'form.mode'}) || $ENV{'form.mode'} ne 'edit') { |
| |
$result.=<<SCRIPT; |
| |
<script type="text/javascript"> |
| |
function select_data(title,url) { |
| |
changeTitle(title); |
| |
changeURL(url); |
| |
parent.close(); |
| |
} |
| |
function changeTitle(val) { |
| |
if (parent.opener.inf.document.forms.resinfo.elements.t) { |
| |
parent.opener.inf.document.forms.resinfo.elements.t.value=val; |
| |
} |
| |
} |
| |
function changeURL(val) { |
| |
if (parent.opener.inf.document.forms.resinfo.elements.u) { |
| |
parent.opener.inf.document.forms.resinfo.elements.u.value=val; |
| |
} |
| |
} |
| |
</script> |
| |
SCRIPT |
| |
} elsif ($ENV{'form.mode'} eq 'edit') { |
| |
my $form = $ENV{'form.form'}; |
| |
my $element = $ENV{'form.element'}; |
| |
my $titleelement = $ENV{'form.titleelement'}; |
| |
my $changetitle; |
| |
if (!$titleelement) { |
| |
$changetitle='function changeTitle(val) {}'; |
| |
} else { |
| |
$changetitle=<<END; |
| |
function changeTitle(val) { |
| |
if (parent.targetwin.document) { |
| |
parent.targetwin.document.forms["$form"].elements["$titleelement"].value=val; |
| |
} else { |
| |
var url = 'forms[\"$form\"].elements[\"$titleelement\"].value'; |
| |
alert("Unable to transfer data to "+url); |
| |
} |
| |
} |
| |
END |
| |
} |
| |
|
| =item * |
$result.=<<SCRIPT; |
| |
<script type="text/javascript"> |
| |
function select_data(title,url) { |
| |
changeURL(url); |
| |
changeTitle(title); |
| |
parent.close(); |
| |
} |
| |
$changetitle |
| |
function changeURL(val) { |
| |
if (parent.targetwin.document) { |
| |
parent.targetwin.document.forms["$form"].elements["$element"].value=val; |
| |
} else { |
| |
var url = 'forms[\"$form\"].elements[\"$element\"].value'; |
| |
alert("Unable to transfer data to "+url); |
| |
} |
| |
} |
| |
</script> |
| |
SCRIPT |
| |
} |
| |
} |
| |
$result.=<<SCRIPT if $ENV{'form.catalogmode'} eq 'groupsearch'; |
| |
<script type="text/javascript"> |
| |
function queue(checkbox_num,val) { |
| |
if (document.forms.results.returnvalues.length != "undefined" && |
| |
typeof(document.forms.results.returnvalues.length) == "number") { |
| |
if (document.forms.results.returnvalues[checkbox_num].checked) { |
| |
parent.statusframe.document.forms.statusform.elements.Queue.value +='1a'+val+'b'; |
| |
} else { |
| |
parent.statusframe.document.forms.statusform.elements.Queue.value +='0a'+val+'b'; |
| |
} |
| |
} else { |
| |
if (document.forms.results.returnvalues.checked) { |
| |
parent.statusframe.document.forms.statusform.elements.Queue.value +='1a'+val+'b'; |
| |
} else { |
| |
parent.statusframe.document.forms.statusform.elements.Queue.value +='0a'+val+'b'; |
| |
} |
| |
} |
| |
} |
| |
function select_group() { |
| |
parent.window.location= |
| |
"/adm/groupsort?mode=$ENV{'form.mode'}&catalogmode=groupsearch&acts="+ |
| |
parent.statusframe.document.forms.statusform.elements.Queue.value; |
| |
} |
| |
</script> |
| |
SCRIPT |
| |
$result.=<<END; |
| |
</head> |
| |
$bodytag |
| |
<form name="results" method="post" action="/adm/searchcat" > |
| |
<input type="hidden" name="Queue" value="" /> |
| |
$importbutton |
| |
END |
| |
return $result; |
| |
} |
| |
|
| get_unprocessed_cgi() : reads in critical name/value pairs that may have not |
###################################################################### |
| been processed and passed into %ENV by the web server |
###################################################################### |
| |
sub search_status_header { |
| |
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1); |
| |
return <<ENDSTATUS; |
| |
<html><head><title>Search Status</title></head> |
| |
$bodytag |
| |
<h3>Search Status</h3> |
| |
Sending search request to LON-CAPA servers.<br /> |
| |
ENDSTATUS |
| |
} |
| |
|
| |
sub results_link { |
| |
my $basic_link = "/adm/searchcat?"."&table=".$ENV{'form.table'}. |
| |
"&persistent_db_id=".$ENV{'form.persistent_db_id'}; |
| |
my $results_link = $basic_link."&phase=results". |
| |
"&pause=1"."&start=1"; |
| |
return $results_link; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub print_frames_interface { |
| |
my $r = shift; |
| |
my $basic_link = "/adm/searchcat?"."&table=".$ENV{'form.table'}. |
| |
"&persistent_db_id=".$ENV{'form.persistent_db_id'}; |
| |
my $run_search_link = $basic_link."&phase=run_search"; |
| |
my $results_link = &results_link(); |
| |
my $result = <<"ENDFRAMES"; |
| |
<html> |
| |
<head> |
| |
<script> |
| |
var targetwin = opener; |
| |
var queue = ''; |
| |
</script> |
| |
<title>LON-CAPA Digital Library Search Results</title> |
| |
</head> |
| |
<frameset rows="150,*"> |
| |
<frame name="statusframe" src="$run_search_link"> |
| |
<frame name="resultsframe" src="$results_link"> |
| |
</frameset> |
| |
</html> |
| |
ENDFRAMES |
| |
|
| =item * |
$r->print($result); |
| |
return; |
| |
} |
| |
|
| make_persistent() : makes a set of hidden HTML fields to make |
###################################################################### |
| SQL search interface information to be persistent |
###################################################################### |
| |
|
| =back |
sub has_stat_data { |
| |
my ($values) = @_; |
| |
if ( (defined($values->{'count'}) && $values->{'count'} ne '') || |
| |
(defined($values->{'stdno'}) && $values->{'stdno'} ne '') || |
| |
(defined($values->{'disc'}) && $values->{'disc'} ne '') || |
| |
(defined($values->{'avetries'}) && $values->{'avetries'} ne '') || |
| |
(defined($values->{'difficulty'}) && $values->{'difficulty'} ne '')) { |
| |
return 1; |
| |
} |
| |
return 0; |
| |
} |
| |
|
| WEB INTERFACE COMPONENT FUNCTIONS |
sub statfields { |
| |
return ('count','stdno','disc','avetries','difficulty'); |
| |
} |
| |
|
| |
sub has_eval_data { |
| |
my ($values) = @_; |
| |
if ( (defined($values->{'clear'}) && $values->{'clear'} ne '') || |
| |
(defined($values->{'technical'}) && $values->{'technical'} ne '') || |
| |
(defined($values->{'correct'}) && $values->{'correct'} ne '') || |
| |
(defined($values->{'helpful'}) && $values->{'helpful'} ne '') || |
| |
(defined($values->{'depth'}) && $values->{'depth'} ne '')) { |
| |
return 1; |
| |
} |
| |
return 0; |
| |
} |
| |
|
| |
sub evalfields { |
| |
return ('clear','technical','correct','helpful','depth'); |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item Metadata Viewing Functions |
| |
|
| |
Output is a HTML-ified string. |
| |
|
| |
Input arguments are title, author, subject, url, keywords, version, |
| |
notes, short abstract, mime, language, creation date, |
| |
last revision date, owner, copyright, hostname, and |
| |
extra custom metadata to show. |
| |
|
| =over 4 |
=over 4 |
| |
|
| =item * |
=item &detailed_citation_view() |
| |
|
| simpletextfield(name,value) : returns HTML formatted string for simple text |
=cut |
| field |
|
| |
|
| =item * |
###################################################################### |
| |
###################################################################### |
| |
sub detailed_citation_view { |
| |
my ($prefix,%values) = @_; |
| |
my $result; |
| |
$result .= '<b>'.$prefix. |
| |
'<img src="'.&Apache::loncommon::icon($values{'url'}).' " />'.' '. |
| |
'<a href="http://'.$ENV{'HTTP_HOST'}.$values{'url'}.'" '. |
| |
'target="search_preview">'.$values{'title'}."</a></b>\n"; |
| |
$result .= "<p>\n"; |
| |
$result .= '<b>'.$values{'author'}.'</b>,'. |
| |
' <i>'.$values{'owner'}.'</i><br />'; |
| |
foreach my $field |
| |
( |
| |
{ name=>'url', |
| |
translate => '<b>URL:</b> [_1]', |
| |
special => 'url link',}, |
| |
{ name=>'subject', |
| |
translate => '<b>Subject:</b> [_1]',}, |
| |
{ name=>'keywords', |
| |
translate => '<b>Keywords:</b> [_1]',}, |
| |
{ name=>'notes', |
| |
translate => '<b>Notes:</b> [_1]',}, |
| |
{ name=>'mimetag', |
| |
translate => '<b>MIME Type:</b> [_1]',}, |
| |
{ name=>'standards', |
| |
translate => '<b>Standards:</b>[_1]',}, |
| |
{ name=>'copyrighttag', |
| |
translate => '<b>Copyright/Distribution:</b> [_1]',}, |
| |
{ name=>'count', |
| |
format => "%d", |
| |
translate => '<b>Access Count:</b> [_1]',}, |
| |
{ name=>'stdno', |
| |
format => "%d", |
| |
translate => '<b>Number of Students:</b> [_1]',}, |
| |
{ name=>'avetries', |
| |
format => "%.2f", |
| |
translate => '<b>Average Tries:</b> [_1]',}, |
| |
{ name=>'disc', |
| |
format => "%.2f", |
| |
translate => '<b>Degree of Discrimination:</b> [_1]',}, |
| |
{ name=>'difficulty', |
| |
format => "%.2f", |
| |
translate => '<b>Degree of Difficulty:</b> [_1]',}, |
| |
{ name=>'clear', |
| |
format => "%.2f", |
| |
translate => '<b>Clear:</b> [_1]',}, |
| |
{ name=>'depth', |
| |
format => "%.2f", |
| |
translate => '<b>Depth:</b> [_1]',}, |
| |
{ name=>'helpful', |
| |
format => "%.2f", |
| |
translate => '<b>Helpful:</b> [_1]',}, |
| |
{ name=>'correct', |
| |
format => "%.2f", |
| |
translate => '<b>Correct:</b> [_1]',}, |
| |
{ name=>'technical', |
| |
format => "%.2f", |
| |
translate => '<b>Technical:</b> [_1]',}, |
| |
{ name=>'comefrom_list', |
| |
type => 'list', |
| |
translate => 'Resources that lead up to this resource in maps',}, |
| |
{ name=>'goto_list', |
| |
type => 'list', |
| |
translate => 'Resources that follow this resource in maps',}, |
| |
{ name=>'sequsage_list', |
| |
type => 'list', |
| |
translate => 'Resources using or importing resource',}, |
| |
) { |
| |
next if (! exists($values{$field->{'name'}}) || |
| |
$values{$field->{'name'}} eq ''); |
| |
if (exists($field->{'type'}) && $field->{'type'} eq 'list') { |
| |
$result .= '<b>'.&mt($field->{'translate'}).'</b><ul>'; |
| |
foreach my $item (split(',',$values{$field->{'name'}})){ |
| |
$result .= '<li>'. |
| |
'<a target="search_preview" '. |
| |
'href="/res/'.$item.'">'.$item.'</a></li>'; |
| |
} |
| |
$result .= '</ul>'; |
| |
} elsif (exists($field->{'format'}) && $field->{'format'} ne ''){ |
| |
$result.= &mt($field->{'translate'}, |
| |
sprintf($field->{'format'}, |
| |
$values{$field->{'name'}}))."<br />\n"; |
| |
} else { |
| |
if ($field->{'special'} eq 'url link') { |
| |
$result.= |
| |
&mt($field->{'translate'}, |
| |
'<a href="'.$values{'url'}.'" '. |
| |
'target="search_preview">'. |
| |
$values{$field->{'name'}}. |
| |
'</a>'); |
| |
} else { |
| |
$result.= &mt($field->{'translate'}, |
| |
$values{$field->{'name'}}); |
| |
} |
| |
$result .= "<br />\n"; |
| |
} |
| |
} |
| |
$result .= "</p>"; |
| |
if (exists($values{'extrashow'}) && $values{'extrashow'} ne '') { |
| |
$result .= '<p>'.$values{'extrashow'}.'</p>'; |
| |
} |
| |
if (exists($values{'shortabstract'}) && $values{'shortabstract'} ne '') { |
| |
$result .= '<p>'.$values{'shortabstract'}.'</p>'; |
| |
} |
| |
$result .= '<hr align="left" width="200" noshade />'."\n"; |
| |
return $result; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &summary_view() |
| |
|
| |
=cut |
| |
###################################################################### |
| |
###################################################################### |
| |
sub summary_view { |
| |
my ($prefix,%values) = @_; |
| |
my $icon=&Apache::loncommon::icon($values{'url'}); |
| |
my $result=<<END; |
| |
$prefix<img src="$icon" /> |
| |
<a href="http://$ENV{'HTTP_HOST'}$values{'url'}" |
| |
target='search_preview'>$values{'author'}</a><br /> |
| |
$values{'title'}<br /> |
| |
$values{'owner'} -- $values{'lastrevisiondate'}<br /> |
| |
$values{'copyrighttag'}<br /> |
| |
$values{'extrashow'} |
| |
</p> |
| |
<hr align='left' width='200' noshade /> |
| |
END |
| |
return $result; |
| |
} |
| |
|
| simplecheckbox(name,value) : returns HTML formatted string for simple |
###################################################################### |
| checkbox |
###################################################################### |
| |
|
| =item * |
=pod |
| |
|
| searchphrasefield(title,name,value) : returns HTML formatted string for |
=item &compact_view() |
| a search expression phrase field |
|
| |
|
| =item * |
=cut |
| |
|
| dateboxes(name, defaultmonth, defaultday, defaultyear) : returns HTML |
###################################################################### |
| formatted string for a calendar date |
###################################################################### |
| |
sub compact_view { |
| |
my ($prefix,%values) = @_; |
| |
my $result = |
| |
$prefix.'<img src="'.&Apache::loncommon::icon($values{'url'}). |
| |
'"> <a href="'.$values{'url'}.'" target="search_preview">'. |
| |
$values{'title'}.'</a>'.(' 'x2). |
| |
'<b>'.$values{'author'}.'</b><br />'; |
| |
return $result; |
| |
} |
| |
|
| =item * |
|
| |
|
| selectbox(title,name,value,%HASH=options) : returns HTML formatted string for |
###################################################################### |
| a selection box field |
###################################################################### |
| |
|
| =back |
=pod |
| |
|
| SEARCH FUNCTIONS |
=item &fielded_format_view() |
| |
|
| =over 4 |
=cut |
| |
|
| =item * |
###################################################################### |
| |
###################################################################### |
| |
sub fielded_format_view { |
| |
my ($prefix,%values) = @_; |
| |
my $icon=&Apache::loncommon::icon($values{'url'}); |
| |
my %Translated = &Apache::lonmeta::fieldnames(); |
| |
my $result=<<END; |
| |
$prefix <img src="$icon" /> |
| |
<dl> |
| |
<dt>URL:</dt> |
| |
<dd><a href="http://$ENV{'HTTP_HOST'}$values{'url'}" |
| |
target='search_preview'>$values{'url'}</a></dd> |
| |
END |
| |
foreach my $field ('title','author','subject','keywords','notes', |
| |
'mimetag','language','creationdate','lastrevisiondate', |
| |
'owner','copyrighttag','hostname','abstract') { |
| |
$result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n". |
| |
(' 'x8).'<dd>'.$values{$field}.'</dd>'."\n"; |
| |
} |
| |
if (&has_stat_data(\%values)) { |
| |
foreach my $field (&statfields()) { |
| |
$result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n". |
| |
(' 'x8).'<dd>'.$values{$field}.'</dd>'."\n"; |
| |
} |
| |
} |
| |
if (&has_eval_data(\%values)) { |
| |
foreach my $field (&evalfields()) { |
| |
$result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n". |
| |
(' 'x8).'<dd>'.$values{$field}.'</dd>'."\n"; |
| |
} |
| |
} |
| |
$result .= "</dl>\n"; |
| |
$result .= $values{'extrashow'}; |
| |
$result .= '<hr align="left" width="200" noshade />'."\n"; |
| |
return $result; |
| |
} |
| |
|
| advancedsearch(server reference, environment reference) : perform a complex |
###################################################################### |
| multi-field logical query |
###################################################################### |
| |
|
| =item * |
=pod |
| |
|
| basicsearch(server reference, environment reference) : perform a simple |
=item &xml_sgml_view() |
| single-field logical query |
|
| |
|
| =item * |
=back |
| |
|
| build_SQL_query(field name, logic) : builds a SQL query string from a |
=cut |
| logical expression with AND/OR keywords |
|
| |
|
| =item * |
###################################################################### |
| |
###################################################################### |
| |
sub xml_sgml_view { |
| |
my ($prefix,%values) = @_; |
| |
my $xml = '<LonCapaResource>'."\n"; |
| |
# The usual suspects |
| |
foreach my $field ('url','title','author','subject','keywords','notes') { |
| |
$xml .= qq{<$field>$values{$field}</$field>}."\n"; |
| |
} |
| |
# |
| |
$xml .= "<mimeInfo>\n"; |
| |
foreach my $field ('mime','mimetag') { |
| |
$xml .= qq{<$field>$values{$field}</$field>}."\n"; |
| |
} |
| |
$xml .= "</mimeInfo>\n"; |
| |
# |
| |
$xml .= "<languageInfo>\n"; |
| |
foreach my $field ('language','languagetag') { |
| |
$xml .= qq{<$field>$values{$field}</$field>}."\n"; |
| |
} |
| |
$xml .= "</languageInfo>\n"; |
| |
# |
| |
foreach my $field ('creationdate','lastrevisiondate','owner') { |
| |
$xml .= qq{<$field>$values{$field}</$field>}."\n"; |
| |
} |
| |
# |
| |
$xml .= "<copyrightInfo>\n"; |
| |
foreach my $field ('copyright','copyrighttag') { |
| |
$xml .= qq{<$field>$values{$field}</$field>}."\n"; |
| |
} |
| |
$xml .= "</copyrightInfo>\n"; |
| |
$xml .= qq{<repositoryLocation>$values{'hostname'}</repositoryLocation>}. |
| |
"\n"; |
| |
$xml .= qq{<shortabstract>$values{'shortabstract'}</shortabstract>}."\n"; |
| |
# |
| |
if (&has_stat_data(\%values)){ |
| |
$xml .= "<problemstatistics>\n"; |
| |
foreach my $field (&statfields()) { |
| |
$xml .= qq{<$field>$values{$field}</$field>}."\n"; |
| |
} |
| |
$xml .= "</problemstatistics>\n"; |
| |
} |
| |
# |
| |
if (&has_eval_data(\%values)) { |
| |
$xml .= "<evaluation>\n"; |
| |
foreach my $field (&evalfields) { |
| |
$xml .= qq{<$field>$values{$field}</$field>}."\n"; |
| |
} |
| |
$xml .= "</evaluation>\n"; |
| |
} |
| |
# |
| |
$xml .= "</LonCapaResource>\n"; |
| |
$xml = &HTML::Entities::encode($xml,'<>&'); |
| |
my $result=<<END; |
| |
$prefix |
| |
<pre> |
| |
$xml |
| |
</pre> |
| |
$values{'extrashow'} |
| |
<hr align='left' width='200' noshade /> |
| |
END |
| |
return $result; |
| |
} |
| |
|
| build_custommetadata_query(field_name, logic_statement) : builds a perl |
###################################################################### |
| regular expression from a logical expression with AND/OR keywords |
###################################################################### |
| |
|
| =item * |
=pod |
| |
|
| recursive_SQL_query_build(field name, reverse notation expression) : |
=item &filled() see if field is filled. |
| builds a SQL query string from a reverse notation expression |
|
| logical expression with AND/OR keywords |
|
| |
|
| =item * |
=cut |
| |
|
| build_date_queries(cmonth1, cday1, cyear1, cmonth2, cday2, cyear2, |
###################################################################### |
| lmonth1, lday1, lyear1, lmonth2, lday2, lyear2) : |
###################################################################### |
| Builds a SQL logic query to check time/date entries. |
sub filled { |
| |
my ($field)=@_; |
| |
if ($field=~/\S/ && $field ne 'any') { |
| |
return 1; |
| |
} else { |
| |
return 0; |
| |
} |
| |
} |
| |
|
| =back |
###################################################################### |
| |
###################################################################### |
| |
|
| OUTPUTTING RESULTS FUNCTION |
=pod |
| |
|
| =over 4 |
=item &output_unparsed_phrase_error() |
| |
|
| =item * |
=cut |
| |
|
| output_results(output mode, server reference, environment reference, |
###################################################################### |
| reply list reference) : outputs results from search |
###################################################################### |
| |
sub output_unparsed_phrase_error { |
| |
my ($r,$closebutton,$parms,$hidden_fields,$field)=@_; |
| |
my $errorstring; |
| |
if ($field eq 'basicexp') { |
| |
$errorstring = &mt('Unable to understand the search phrase <i>[_1]</i>. Please modify your search.',$ENV{'form.basicexp'}); |
| |
} else { |
| |
$errorstring = &mt('Unable to understand the search phrase <b>[_1]</b>:<i>[_2]</i>.',$field,$ENV{'form.'.$field}); |
| |
} |
| |
my $bodytag = &Apache::loncommon::bodytag('Search'); |
| |
my $heading = &mt('Unparsed Field'); |
| |
my $revise = &mt('Revise search request'); |
| |
# make query information persistent to allow for subsequent revision |
| |
$r->print(<<ENDPAGE); |
| |
<html> |
| |
<head> |
| |
<title>The LearningOnline Network with CAPA</title> |
| |
</head> |
| |
$bodytag |
| |
<form method="post" action="/adm/searchcat"> |
| |
$hidden_fields |
| |
$closebutton |
| |
<hr /> |
| |
<h2>$heading</h2> |
| |
<p> |
| |
$errorstring |
| |
</p> |
| |
<p> |
| |
<a href="/adm/searchcat?$parms&persistent_db_id=$ENV{'form.persistent_db_id'}">$revise</a> |
| |
</p> |
| |
</body> |
| |
</html> |
| |
ENDPAGE |
| |
} |
| |
|
| =back |
###################################################################### |
| |
###################################################################### |
| |
|
| DIFFERENT WAYS TO VIEW METADATA RECORDS |
=pod |
| |
|
| =over 4 |
=item &output_blank_field_error() |
| |
|
| =item * |
Output a complete page that indicates the user has not filled in enough |
| |
information to do a search. |
| |
|
| detailed_citation_view(ORDERED METADATA LIST FOR A RESULT OBJECT INSTANCE) : |
Inputs: $r (Apache request handle), $closebutton, $parms. |
| see metadata viewing notes below |
|
| |
|
| =item * |
Returns: nothing |
| |
|
| summary_view(ORDERED METADATA LIST FOR A RESULT OBJECT INSTANCE) : |
$parms is extra information to include in the 'Revise search request' link. |
| see metadata viewing notes below |
|
| |
|
| =item * |
=cut |
| |
|
| fielded_format_view(ORDERED METADATA LIST FOR A RESULT OBJECT INSTANCE) : |
###################################################################### |
| see metadata viewing notes below |
###################################################################### |
| |
sub output_blank_field_error { |
| |
my ($r,$closebutton,$parms,$hidden_fields)=@_; |
| |
my $bodytag=&Apache::loncommon::bodytag('Search'); |
| |
my $errormsg = &mt('You did not fill in enough information for the search to be started. You need to fill in relevant fields on the search page in order for a query to be processed.'); |
| |
my $revise = &mt('Revise Search Request'); |
| |
my $heading = &mt('Unactionable Search Queary'); |
| |
$r->print(<<ENDPAGE); |
| |
<html> |
| |
<head> |
| |
<title>The LearningOnline Network with CAPA</title> |
| |
</head> |
| |
$bodytag |
| |
<form method="post" action="/adm/searchcat"> |
| |
$hidden_fields |
| |
$closebutton |
| |
<hr /> |
| |
<h2>$heading</h2> |
| |
<p> |
| |
$errormsg |
| |
</p> |
| |
<p> |
| |
<a href="/adm/searchcat?$parms&persistent_db_id=$ENV{'form.persistent_db_id'}">$revise</a> |
| |
</p> |
| |
</body> |
| |
</html> |
| |
ENDPAGE |
| |
return; |
| |
} |
| |
|
| =item * |
###################################################################### |
| |
###################################################################### |
| |
|
| xml_sgml_view(ORDERED METADATA LIST FOR A RESULT OBJECT INSTANCE) : |
=pod |
| see metadata viewing notes below |
|
| |
|
| =back |
=item &output_date_error() |
| |
|
| _____________________________________________________________________ |
Output a full html page with an error message. |
| | * Metadata viewing notes | |
|
| | Output is a HTML-ified string. | |
|
| | Input arguments are title, author, subject, url, keywords, version, | |
|
| | notes, short abstract, mime, language, creation date, | |
|
| | last revision date, owner, copyright, hostname, httphost, and | |
|
| | extra custom metadata to show. | |
|
| --------------------------------------------------------------------- |
|
| |
|
| TEST CONDITIONAL FUNCTIONS |
Inputs: |
| |
|
| =over 4 |
$r, the request pointer. |
| |
$message, the error message for the user. |
| |
$closebutton, the specialized close button needed for groupsearch. |
| |
|
| =item * |
=cut |
| |
|
| filled(field) : determines whether a given field has been filled |
###################################################################### |
| |
###################################################################### |
| |
sub output_date_error { |
| |
my ($r,$message,$closebutton,$hidden_fields)=@_; |
| |
# make query information persistent to allow for subsequent revision |
| |
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1); |
| |
$r->print(<<RESULTS); |
| |
<html> |
| |
<head> |
| |
<title>The LearningOnline Network with CAPA</title> |
| |
</head> |
| |
$bodytag |
| |
<img align='right' src='/adm/lonIcons/lonlogos.gif' /> |
| |
<h1>Search Catalog</h1> |
| |
<form method="post" action="/adm/searchcat"> |
| |
$hidden_fields |
| |
<input type='button' value='Revise search request' |
| |
onClick='this.form.submit();' /> |
| |
$closebutton |
| |
<hr /> |
| |
<h3>Error</h3> |
| |
<p> |
| |
$message |
| |
</p> |
| |
</body> |
| |
</html> |
| |
RESULTS |
| |
} |
| |
|
| =back |
###################################################################### |
| |
###################################################################### |
| |
|
| ERROR FUNCTIONS |
=pod |
| |
|
| =over 4 |
=item &start_fresh_session() |
| |
|
| |
Cleans the global %groupsearch_db by removing all fields which begin with |
| |
'pre_' or 'store'. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub start_fresh_session { |
| |
delete $groupsearch_db{'mode_catalog'}; |
| |
foreach (keys %groupsearch_db) { |
| |
if ($_ =~ /^pre_/) { |
| |
delete $groupsearch_db{$_}; |
| |
} |
| |
if ($_ =~ /^store/) { |
| |
delete $groupsearch_db{$_}; |
| |
} |
| |
} |
| |
} |
| |
|
| =item * |
1; |
| |
|
| output_blank_field_error(server reference) : outputs a message saying that |
sub cleanup { |
| more fields need to be filled in |
if (tied(%groupsearch_db)) { |
| |
unless (untie(%groupsearch_db)) { |
| |
&Apache::lonnet::logthis('Failed cleanup searchcat: groupsearch_db'); |
| |
} |
| |
} |
| |
&untiehash(); |
| |
&Apache::lonmysql::disconnect_from_db(); |
| |
} |
| |
|
| =item * |
__END__ |
| |
|
| output_date_error(server reference, error message) : outputs |
=pod |
| an error message specific to bad date format. |
|
| |
|
| =back |
=back |
| |
|
| =cut |
=cut |
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