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version 1.91, 2001/04/02 13:15:26
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version 1.221, 2004/05/04 15:20:17
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| # The LearningOnline Network |
# The LearningOnline Network with CAPA |
| # Search Catalog |
# Search Catalog |
| # |
# |
| # 03/08/2001 Scott Harrison |
# $Id$ |
| # Scott Harrison: 03/12/2001, 03/13/2001, 03/14/2001, 03/15/2001, 03/19/2001 |
|
| # Scott Harrison: 03/20/2001, 03/21/2001, 03/22/2001, 03/26/2001, 03/27/2001 |
|
| # Scott Harrison: 04/02/2001 |
|
| # |
# |
| # Functions |
# Copyright Michigan State University Board of Trustees |
| # |
# |
| # handler(server reference) : interacts with the Apache server layer |
# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
| # (for /adm/searchcat URLs) |
# |
| # simpletextfield(name,value) : returns HTML formatted string for simple text |
# LON-CAPA is free software; you can redistribute it and/or modify |
| # field |
# it under the terms of the GNU General Public License as published by |
| # simplecheckbox(name,value) : returns HTML formatted string for simple |
# the Free Software Foundation; either version 2 of the License, or |
| # checkbox |
# (at your option) any later version. |
| # searchphrasefield(title,name,value) : returns HTML formatted string for |
# |
| # a search expression phrase field |
# LON-CAPA is distributed in the hope that it will be useful, |
| # dateboxes(name, defaultmonth, defaultday, defaultyear) : returns HTML |
# but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # formatted string |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # for a calendar date |
# GNU General Public License for more details. |
| # selectbox(title,name,value,%HASH=options) : returns HTML formatted string for |
# |
| # a selection box field |
# You should have received a copy of the GNU General Public License |
| # advancedsearch(server reference, environment reference) : perform a complex |
# along with LON-CAPA; if not, write to the Free Software |
| # multi-field logical query |
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| # filled(field) : determines whether a given field has been filled |
# |
| # basicsearch(server reference, environment reference) : perform a simple |
# /home/httpd/html/adm/gpl.txt |
| # single-field logical query |
# |
| # output_blank_field_error(server reference) : outputs a message saying that |
# http://www.lon-capa.org/ |
| # more fields need to be filled in |
# |
| # output_results(output mode, |
############################################################################### |
| # server reference, |
############################################################################### |
| # environment reference, |
|
| # reply list reference) : outputs results from search |
=pod |
| # build_SQL_query(field name, logic) : builds a SQL query string from a |
|
| # logical expression with AND/OR keywords |
=head1 NAME |
| # recursive_SQL_query_build(field name, reverse notation expression) : |
|
| # builds a SQL query string from a reverse notation expression |
lonsearchcat - LONCAPA Search Interface |
| # logical expression with AND/OR keywords |
|
| # build_custommetadata_query(field_name, logic_statement) : builds a perl |
=head1 SYNOPSIS |
| # regular expression from a logical expression with AND/OR |
|
| # keywords |
Search interface to LON-CAPAs digital library |
| # detailed_citation_view, summary_view, fielded_format_view, xml_sgml_view: |
|
| # four different ways to view metadata records. Outputs a HTML-ified string. |
=head1 DESCRIPTION |
| # Input arguments are title, author, subject, url, keywords, version, notes, |
|
| # short abstract, mime, language, creation date, last revision date, owner, |
This module enables searching for a distributed browseable catalog. |
| # copyright, hostname, httphost, and extra custom metadata to show. |
|
| # build_date_queries(cmonth1, cday1, cyear1, cmonth2, cday2, cyear2, |
This is part of the LearningOnline Network with CAPA project |
| # lmonth1, lday1, lyear1, lmonth2, lday2, lyear2) : |
described at http://www.lon-capa.org. |
| # Builds a SQL logic query to check time/date entries. |
|
| # output_date_error(server reference, error message) : outputs |
lonsearchcat presents the user with an interface to search the LON-CAPA |
| # an error message specific to bad date format. |
digital library. lonsearchcat also initiates the execution of a search |
| # make_persistent() : makes a set of hidden HTML fields to make |
by sending the search parameters to LON-CAPA servers. The progress of |
| # SQL search interface information to be persistent |
search (on a server basis) is displayed to the user in a separate window. |
| |
|
| |
=head1 Internals |
| |
|
| |
=over 4 |
| |
|
| |
=cut |
| |
|
| |
############################################################################### |
| |
############################################################################### |
| |
|
| package Apache::lonsearchcat; |
package Apache::lonsearchcat; |
| |
|
| 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 Apache::loncommon(); |
| |
use Apache::lonmysql(); |
| |
use Apache::lonmeta; |
| |
use Apache::lonhtmlcommon; |
| |
use Apache::lonlocal; |
| |
use LONCAPA::lonmetadata(); |
| |
use HTML::Entities(); |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
## |
| |
## Global variables |
| |
## |
| |
###################################################################### |
| |
###################################################################### |
| |
my %groupsearch_db; # Database hash used to save values for the |
| |
# groupsearch RAT interface. |
| |
my %persistent_db; # gdbm hash which holds data which is supposed to |
| |
# persist across calls to lonsearchcat.pm |
| |
|
| |
# The different view modes and associated functions |
| |
|
| |
my %Views = ("detailed" => \&detailed_citation_view, |
| |
"summary" => \&summary_view, |
| |
"fielded" => \&fielded_format_view, |
| |
"xml" => \&xml_sgml_view, |
| |
"compact" => \&compact_view); |
| |
|
| # ---------------------------------------- variables used throughout the module |
###################################################################### |
| my %language; |
###################################################################### |
| my $scrout; |
|
| my %metadatafields; |
|
| my %cprtag; |
|
| my %mimetag; |
|
| my $closebutton; |
|
| |
|
| # ------ form selection elements that allow for choosing different output views |
|
| # Detailed Citation View ---> sub detailed_citationview |
|
| # 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 |
|
| |
|
| # ----------------------------- Handling routine called via Apache and mod_perl |
|
| sub handler { |
sub handler { |
| my $r = shift; |
my $r = shift; |
| |
# &set_defaults(); |
| # -------------------------------------- see if called from an interactive mode |
# |
| map { |
# set form defaults |
| my ($name, $value) = split(/=/,$_); |
# |
| $value =~ tr/+/ /; |
my $hidden_fields;# Hold all the hidden fields used to keep track |
| $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
# of the search system state |
| if ($name eq 'catalogmode') { |
my $importbutton; # button to take the selected results and go to group |
| $ENV{'form.'.$name}=$value; |
# sorting |
| } |
my $diropendb; # The full path to the (temporary) search database file. |
| } (split(/&/,$ENV{'QUERY_STRING'})); |
# This is set and used in &handler() and is also used in |
| |
# &output_results(). |
| $r->content_type('text/html'); |
my $bodytag; # LON-CAPA standard body tag, gotten from |
| |
# &Apache::lonnet::bodytag. |
| |
# No title, no table, just a <body> tag. |
| |
|
| |
my $loaderror=&Apache::lonnet::overloaderror($r); |
| |
if ($loaderror) { return $loaderror; } |
| |
# |
| |
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; |
| |
## |
| %metadatafields=(); |
## Prevent caching of the search interface window. Hopefully this means |
| |
## we will get the launch=1 passed in a little more. |
| my $hidden=''; |
&Apache::loncommon::no_cache($r); |
| if ($ENV{'form.catalogmode'} eq 'interactive') { |
## |
| $hidden=<<END; |
## Pick up form fields passed in the links. |
| <input type='hidden' name='catalogmode' value='interactive'> |
## |
| |
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, |
| |
['catalogmode','launch','acts','mode','form','element','pause', |
| |
'phase','persistent_db_id','table','start','show', |
| |
'cleargroupsort','titleelement']); |
| |
## |
| |
## The following is a trick - we wait a few seconds if asked to so |
| |
## the daemon running the search can get ahead of the daemon |
| |
## printing the results. We only need (theoretically) to do |
| |
## this once, so the pause indicator is deleted |
| |
## |
| |
if (exists($ENV{'form.pause'})) { |
| |
sleep(1); |
| |
delete($ENV{'form.pause'}); |
| |
} |
| |
## |
| |
## Initialize global variables |
| |
## |
| |
my $domain = $r->dir_config('lonDefDomain'); |
| |
$diropendb= "/home/httpd/perl/tmp/". |
| |
"$ENV{'user.domain'}_$ENV{'user.name'}_searchcat.db"; |
| |
# |
| |
# 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'}) || |
| |
($ENV{'form.persistent_db_id'} =~ /\D/) || |
| |
($ENV{'form.launch'} eq '1')) { |
| |
$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'}) && $ENV{'request.course.id'} ne '') { |
| |
&Apache::lonhtmlcommon::add_breadcrumb |
| |
({href=>'/adm/searchcat?'. |
| |
'catalogmode='.$ENV{'form.catalogmode'}. |
| |
'&launch='.$ENV{'form.launch'}. |
| |
'&mode='.$ENV{'form.mode'}, |
| |
text=>"Course and Catalog Search", |
| |
bug=>'Searching',}); |
| |
} else { |
| |
&Apache::lonhtmlcommon::add_breadcrumb |
| |
({href=>'/adm/searchcat?'. |
| |
'catalogmode='.$ENV{'form.catalogmode'}. |
| |
'&launch='.$ENV{'form.launch'}. |
| |
'&mode='.$ENV{'form.mode'}, |
| |
text=>"Catalog Search", |
| |
bug=>'Searching',}); |
| |
} |
| |
# |
| |
if ($ENV{'form.phase'} !~ m/(basic|adv|course)_search/) { |
| |
if (! &get_persistent_form_data($persistent_db_file)) { |
| |
if ($ENV{'form.phase'} =~ /(run_search|results)/) { |
| |
&Apache::lonnet::logthis('lonsearchcat:'. |
| |
'Unable to recover data from '. |
| |
$persistent_db_file); |
| |
$r->print(<<END); |
| |
<html> |
| |
<head><title>LON-CAPA Search Error</title></head> |
| |
$bodytag |
| |
We were unable to retrieve data describing your search. This is a serious |
| |
error and has been logged. Please alert your LON-CAPA administrator. |
| |
</body> |
| |
</html> |
| END |
END |
| $closebutton=<<END; |
return OK; |
| <input type="button" name="close" value='CLOSE' onClick="self.close()"> |
} |
| |
} |
| |
} else { |
| |
&clean_up_environment(); |
| |
} |
| |
## |
| |
## Clear out old values from groupsearch database |
| |
## |
| |
untie %groupsearch_db if (tied(%groupsearch_db)); |
| |
if (($ENV{'form.cleargroupsort'} eq '1') || |
| |
(($ENV{'form.launch'} eq '1') && |
| |
($ENV{'form.catalogmode'} eq 'groupsearch'))) { |
| |
if (tie(%groupsearch_db,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) { |
| |
&start_fresh_session(); |
| |
untie %groupsearch_db; |
| |
delete($ENV{'form.cleargroupsort'}); |
| |
} else { |
| |
# This is a stupid error to give to the user. |
| |
# It really tells them nothing. |
| |
$r->print('<html><head></head>'.$bodytag. |
| |
'Unable to tie hash to db file</body></html>'); |
| |
return OK; |
| |
} |
| |
} |
| |
## |
| |
## Configure hidden fields |
| |
## |
| |
$hidden_fields = '<input type="hidden" name="persistent_db_id" value="'. |
| |
$ENV{'form.persistent_db_id'}.'" />'."\n"; |
| |
if (exists($ENV{'form.catalogmode'})) { |
| |
$hidden_fields .= '<input type="hidden" name="catalogmode" value="'. |
| |
$ENV{'form.catalogmode'}.'" />'."\n"; |
| |
} |
| |
if (exists($ENV{'form.form'})) { |
| |
$hidden_fields .= '<input type="hidden" name="form" value="'. |
| |
$ENV{'form.form'}.'" />'."\n"; |
| |
} |
| |
if (exists($ENV{'form.element'})) { |
| |
$hidden_fields .= '<input type="hidden" name="element" value="'. |
| |
$ENV{'form.element'}.'" />'."\n"; |
| |
} |
| |
if (exists($ENV{'form.titleelement'})) { |
| |
$hidden_fields .= '<input type="hidden" name="titleelement" value="'. |
| |
$ENV{'form.titleelement'}.'" />'."\n"; |
| |
} |
| |
if (exists($ENV{'form.mode'})) { |
| |
$hidden_fields .= '<input type="hidden" name="mode" value="'. |
| |
$ENV{'form.mode'}.'" />'."\n"; |
| |
} |
| |
## |
| |
## Configure dynamic components of interface |
| |
## |
| |
if ($ENV{'form.catalogmode'} eq 'interactive') { |
| |
$closebutton="<input type='button' name='close' value='CLOSE' "; |
| |
if ($ENV{'form.phase'} =~ /(results|run_search)/) { |
| |
$closebutton .="onClick='parent.close()'"; |
| |
} else { |
| |
$closebutton .="onClick='self.close()'"; |
| |
} |
| |
$closebutton .=">\n"; |
| |
} elsif ($ENV{'form.catalogmode'} eq 'groupsearch') { |
| |
$closebutton="<input type='button' name='close' value='CLOSE' "; |
| |
if ($ENV{'form.phase'} =~ /(results|run_search)/) { |
| |
$closebutton .="onClick='parent.close()'"; |
| |
} else { |
| |
$closebutton .="onClick='self.close()'"; |
| |
} |
| |
$closebutton .= ">"; |
| |
$importbutton=<<END; |
| |
<input type='button' name='import' value='IMPORT' |
| |
onClick='javascript:select_group()'> |
| END |
END |
| |
} else { |
| |
$closebutton = ''; |
| |
$importbutton = ''; |
| |
} |
| |
## |
| |
## Sanity checks on form elements |
| |
## |
| |
if (!defined($ENV{'form.viewselect'})) { |
| |
if (($ENV{'form.catalogmode'} eq 'groupsearch') || |
| |
($ENV{'form.catalogmode'} eq 'interactive')) { |
| |
$ENV{'form.viewselect'} ="Compact View"; |
| |
} else { |
| |
$ENV{'form.viewselect'} ="Detailed Citation View"; |
| |
} |
| } |
} |
| |
$ENV{'form.phase'} = 'disp_basic' if (! exists($ENV{'form.phase'})); |
| # ------------------------------------------------ First, check out environment |
$ENV{'form.show'} = 20 if (! exists($ENV{'form.show'})); |
| $metadatafields{'owner'}=$ENV{'user.name'}.'@'.$ENV{'user.domain'}; |
# |
| |
$ENV{'form.searchmode'} = 'basic' if (! exists($ENV{'form.searchmode'})); |
| # --------------------------------- Compute various listings of metadata values |
if ($ENV{'form.phase'} eq 'adv_search' || |
| |
$ENV{'form.phase'} eq 'disp_adv') { |
| %language=(); |
$ENV{'form.searchmode'} = 'advanced'; |
| $language{'any'}='Any language'; |
} elsif ($ENV{'form.phase'} eq 'course_search') { |
| { |
$ENV{'form.searchmode'} = 'course_search'; |
| my $fh=Apache::File->new($r->dir_config('lonTabDir').'/language.tab'); |
} |
| map { |
# |
| $_=~/(\w+)\s+([\w\s\-]+)/; chomp; |
if ($ENV{'form.searchmode'} eq 'advanced') { |
| $language{$1}=$2; |
&Apache::lonhtmlcommon::add_breadcrumb |
| } <$fh>; |
({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')) { |
| |
# 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> |
| |
$bodytag |
| |
Unable to properly store search information. The search has been aborted. |
| |
</body> |
| |
</html> |
| |
END |
| |
return OK; |
| |
} |
| |
# |
| |
# We are running a search |
| |
my ($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); |
| |
} 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 }, |
| |
$persistent_db_file); |
| |
## |
| |
## Print out the frames interface |
| |
## |
| |
&print_frames_interface($r); |
| } |
} |
| |
return OK; |
| |
} |
| |
|
| %cprtag=(); |
# |
| $cprtag{'any'}='Any copyright/distribution'; |
# The mechanism used to store values away and retrieve them does not |
| { |
# handle the case of missing environment variables being significant. |
| my $fh=Apache::File->new($r->dir_config('lonIncludes').'/copyright.tab'); |
# |
| map { |
# This routine sets non existant checkbox form elements to ''. |
| $_=~/(\w+)\s+([\w\s\-]+)/; chomp; |
# |
| $cprtag{$1}=$2; |
sub clean_up_environment { |
| } <$fh>; |
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'} = ''; |
| |
} |
| } |
} |
| |
} |
| |
|
| %mimetag=(); |
###################################################################### |
| $mimetag{'any'}='Any type'; |
###################################################################### |
| { |
## |
| my $fh=Apache::File->new($r->dir_config('lonTabDir').'/filetypes.tab'); |
## Course Search |
| map { |
## |
| $_=~/(\w+)\s+(\w+)\s+([\w\s\-]+)/; chomp; |
###################################################################### |
| $mimetag{$1}=".$1 $3"; |
###################################################################### |
| } <$fh>; |
{ # Scope the course search to avoid global variables |
| |
# |
| |
# Variables For course search |
| |
my %alreadyseen; |
| |
my %hash; |
| |
my $totalfound; |
| |
|
| |
sub course_search { |
| |
my $r=shift; |
| |
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')."."; |
| |
} |
| } |
} |
| |
my $fulltext=$ENV{'form.crsfulltext'}; |
| # ----------------------------------- See if a search invocation should be done |
my @allwords=($search_string,@New_Words); |
| if ($ENV{'form.basicsubmit'} eq 'SEARCH') { |
$totalfound=0; |
| return &basicsearch($r,\%ENV); |
$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 />'); |
| |
$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); |
| } |
} |
| elsif ($ENV{'form.advancedsubmit'} eq 'SEARCH') { |
unless ($totalfound) { |
| return &advancedsearch($r,\%ENV); |
$r->print('<p>'.&mt('No resources found').'.</p>'); |
| } |
} |
| |
# =================================================== Done going through course |
| |
$r->print('</body></html>'); |
| |
} |
| |
|
| # ----------------------------- Else, begin building search interface to output |
# =============================== This pulls up a resource and its dependencies |
| $scrout=''; # building a part of screen output |
|
| $scrout.=&searchphrasefield('Limit by title','title', |
|
| $ENV{'form.title'}); |
|
| |
|
| $scrout.=&searchphrasefield('Limit by author','author', |
|
| $ENV{'form.author'}); |
|
| |
|
| $scrout.=&searchphrasefield('Limit by subject','subject', |
sub checkonthis { |
| $ENV{'form.subject'}); |
my ($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 $applies=0; |
| |
foreach (@allwords) { |
| |
if ($_=~/\w/) { |
| |
if ($result=~/$_/si) { |
| |
$applies++; |
| |
} |
| |
} |
| |
} |
| |
# Does this resource apply? |
| |
if ($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 keywords','keywords', |
sub untiehash { |
| $ENV{'form.keywords'}); |
if (tied(%hash)) { |
| |
untie(%hash); |
| |
} |
| |
} |
| |
|
| $scrout.=&searchphrasefield('Limit by URL','url', |
} # End of course search scoping |
| $ENV{'form.url'}); |
|
| |
|
| $scrout.=&searchphrasefield('Limit by version','version', |
sub search_html_header { |
| $ENV{'form.version'}); |
my $Str = <<ENDHEADER; |
| |
<html> |
| |
<head> |
| |
<title>The LearningOnline Network with CAPA</title> |
| |
</head> |
| |
ENDHEADER |
| |
return $Str; |
| |
} |
| |
|
| $scrout.=&searchphrasefield('Limit by notes','notes', |
###################################################################### |
| $ENV{'form.notes'}); |
###################################################################### |
| |
|
| $scrout.=&searchphrasefield('Limit by abstract','abstract', |
=pod |
| $ENV{'form.abstract'}); |
|
| |
|
| $ENV{'form.mime'}='notxxx' unless length($ENV{'form.mime'}); |
=item &print_basic_search_form() |
| $scrout.=&selectbox('Limit by MIME type','mime', |
|
| $ENV{'form.mime'},%mimetag); |
|
| |
|
| $ENV{'form.language'}='any' unless length($ENV{'form.language'}); |
Prints the form for the basic search. Sorry the name is so cryptic. |
| |
|
| $scrout.=&selectbox('Limit by language','language', |
=cut |
| $ENV{'form.language'},%language); |
|
| |
###################################################################### |
| |
###################################################################### |
| # ------------------------------------------------ Compute date selection boxes |
sub print_basic_search_form { |
| $scrout.=<<CREATIONDATESTART; |
my ($r,$closebutton,$hidden_fields) = @_; |
| |
my $bodytag=&Apache::loncommon::bodytag('Search'). |
| |
&Apache::lonhtmlcommon::breadcrumbs(undef,'Searching','Searching', |
| |
undef,undef,! $ENV{'form.launch'}); |
| |
my $scrout = &search_html_header().$bodytag; |
| |
if (&Apache::lonnet::allowed('bre',$ENV{'request.role.domain'})) { |
| |
# Define interface components |
| |
my $userelatedwords= |
| |
&mt('[_1] use related words', |
| |
&Apache::lonhtmlcommon::checkbox |
| |
('related',$ENV{'form.related'},'related')); |
| |
my $onlysearchdomain= |
| |
&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', |
| |
$ENV{'form.basicexp'},50).'<br />'. |
| |
'<font size="-1">'.&searchhelp().'</font>'.'</td>'. |
| |
'<td><font size="-1">'. |
| |
'<nobr>'.(' 'x3).$adv_search_link.'</nobr>'.'<br />'. |
| |
'<nobr>'.(' 'x1).$userelatedwords.'</nobr>'.'<br />'. |
| |
'<nobr>'.(' 'x1).$onlysearchdomain.'</nobr>'.'<br />'. |
| |
'</font></td>'. |
| |
'</tr>'.$/; |
| |
# |
| |
# $scrout .= '<tr><td align="center">'. |
| |
# '<font size="-1">'. |
| |
# $userelatedwords.(' 'x3). |
| |
# $onlysearchdomain.(' 'x2).$adv_search_link. |
| |
# '</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)' |
| |
); |
| |
$scrout.=(<<ENDCOURSESEARCH); |
| |
<form name="loncapa_search" method="post" action="/adm/searchcat"> |
| |
<center> |
| |
<hr /> |
| |
<h1>$lt{'header'}</h1> |
| |
<input type="hidden" name="phase" value="course_search" /> |
| |
$hidden_fields |
| <p> |
<p> |
| <font color="#800000" face="helvetica"><b>LIMIT BY CREATION DATE RANGE:</b> |
$lt{'note'}. |
| </font> |
</p> |
| <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; |
|
| <p> |
<p> |
| <font color="#800000" face="helvetica"><b>LIMIT BY LAST REVISION DATE RANGE: |
<table> |
| </b></font> |
<tr><td> |
| <br>between: |
ENDCOURSESEARCH |
| LASTREVISIONDATESTART |
$scrout.=' '. |
| $scrout.=&dateboxes('lastrevisiondatestart',1,1,1976, |
&Apache::lonhtmlcommon::textbox('courseexp', |
| $ENV{'form.lastrevisiondatestart_month'}, |
$ENV{'form.courseexp'},40); |
| $ENV{'form.lastrevisiondatestart_day'}, |
my $crscheckbox = |
| $ENV{'form.lastrevisiondatestart_year'}, |
&Apache::lonhtmlcommon::checkbox('crsfulltext', |
| ); |
$ENV{'form.crsfulltext'}); |
| $scrout.=<<LASTREVISIONDATEEND; |
my $relcheckbox = |
| and: |
&Apache::lonhtmlcommon::checkbox('crsrelated', |
| LASTREVISIONDATEEND |
$ENV{'form.crsrelated'}); |
| $scrout.=&dateboxes('lastrevisiondateend',12,31,2051, |
$scrout.=(<<ENDENDCOURSE); |
| $ENV{'form.lastrevisiondateend_month'}, |
</td></tr> |
| $ENV{'form.lastrevisiondateend_day'}, |
<tr><td>$relcheckbox $lt{'use'}</td><td></td></tr> |
| $ENV{'form.lastrevisiondateend_year'}, |
<tr><td>$crscheckbox $lt{'full'}</td><td></td></tr> |
| ); |
</table><p> |
| $scrout.='</p>'; |
<input type="submit" name="coursesubmit" value='$lt{'srch'}' /> |
| |
</p> |
| $scrout.=&searchphrasefield('Limit by publisher/owner','owner', |
</center> |
| $ENV{'form.owner'}); |
</form> |
| # $metadatafields{'owner'}); |
ENDENDCOURSE |
| |
} |
| $ENV{'form.copyright'}='any' unless length($ENV{'form.copyright'}); |
$scrout.=(<<ENDDOCUMENT); |
| $scrout.=&selectbox('Limit by copyright/distribution','copyright', |
</body> |
| $ENV{'form.copyright'},%cprtag); |
</html> |
| |
ENDDOCUMENT |
| |
$r->print($scrout); |
| |
return; |
| |
} |
| |
###################################################################### |
| |
###################################################################### |
| |
|
| # ------------------------------------------- Compute customized metadata field |
=pod |
| $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.<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; |
=item &advanced_search_form() |
| <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 |
Prints the advanced search form. |
| $r->print(<<ENDDOCUMENT); |
|
| <html> |
=cut |
| <head> |
|
| <title>The LearningOnline Network with CAPA</title> |
###################################################################### |
| </head> |
###################################################################### |
| <body bgcolor="#FFFFFF"> |
sub print_advanced_search_form{ |
| <img align=right src=/adm/lonIcons/lonlogos.gif> |
my ($r,$closebutton,$hidden_fields) = @_; |
| <h1>Search Catalog</h1> |
my $bodytag=&Apache::loncommon::bodytag('Advanced Catalog Search'). |
| <form method="post" action="/adm/searchcat"> |
&Apache::lonhtmlcommon::breadcrumbs(undef,'Searching', |
| $hidden |
'Searching', |
| <hr> |
undef,undef, |
| <h3>Basic Search</h3> |
! $ENV{'form.launch'}); |
| <p> |
|
| Enter terms or phrases separated by search operators |
my %lt=&Apache::lonlocal::texthash('srch' => 'Search', |
| such as AND or OR then press SEARCH below. Terms should be specific |
'reset' => 'Reset', |
| to the title, author, subject, notes, or abstract information associated |
'help' => 'Help'); |
| with a resource. |
my $advanced_buttons=<<"END"; |
| <br> |
<input type="submit" name="advancedsubmit" value='$lt{"srch"}' /> |
| ENDDOCUMENT |
<input type="reset" name="reset" value='$lt{"reset"}' /> |
| $r->print(&simpletextfield('basicexp',$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'})); |
|
| $r->print(<<ENDDOCUMENT); |
|
| <font color="#800000">Search historic archives</font> |
|
| <br> |
|
| <input type="submit" name="basicsubmit" value='SEARCH' /> |
|
| <input type="reset" name="reset" value='RESET' /> |
|
| $closebutton |
$closebutton |
| $basicviewselect |
END |
| </p> |
my $scrout=&search_html_header(); |
| <hr> |
$scrout .= <<"ENDHEADER"; |
| <h3>Advanced Search</h3> |
$bodytag |
| $scrout |
<form method="post" action="/adm/searchcat" name="advsearch"> |
| <p> |
<p> |
| <input type="submit" name="advancedsubmit" value='SEARCH' /> |
$advanced_buttons |
| <input type="reset" name="reset" value='RESET' /> |
ENDHEADER |
| $closebutton |
$scrout.=(' 'x2).&viewoptions().'</p>'.$hidden_fields. |
| $advancedviewselect |
'<input type="hidden" name="phase" value="adv_search" />'; |
| </p> |
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 |
| |
$scrout.='<tr><td align="right" valign="top">'. |
| |
&titlefield(&mt('Copyright/Distribution')).'</td><td colspan="2">'. |
| |
&Apache::lonmeta::selectbox('copyright', |
| |
'',, |
| |
\&Apache::loncommon::copyrightdescription, |
| |
( undef, |
| |
&Apache::loncommon::copyrightids) |
| |
).'</td></tr>'.$/; |
| |
$scrout.='<tr><td align="right" valign="top">'. |
| |
&titlefield(&mt('Language')).'</td><td colspan="2">'. |
| |
&Apache::lonmeta::selectbox('language', |
| |
'notset',, |
| |
\&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=>'stdno', |
| |
description=>'Number of Students',}, |
| |
{ name => 'avetries', |
| |
description=>'Average tries to answer correctly',}, |
| |
{ 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> |
</form> |
| </body> |
</body> |
| </html> |
</html> |
| ENDDOCUMENT |
ENDDOCUMENT |
| return OK; |
$r->print($scrout); |
| } |
return; |
| |
} |
| |
|
| # --------------------------------------------------------- Various form fields |
###################################################################### |
| |
###################################################################### |
| |
|
| sub simpletextfield { |
=pod |
| my ($name,$value)=@_; |
|
| return '<input type=text name=\''.$name. |
=item &titlefield() |
| '\' size=20 value=\''.$value.'\' />'; |
|
| } |
Inputs: title text |
| |
|
| sub simplecheckbox { |
Outputs: titletext with font wrapper |
| my ($name,$value)=@_; |
|
| my $checked=''; |
=cut |
| $checked="CHECKED" if $value eq 'on'; |
|
| return '<input type=checkbox name=\''.$name.'\' '. $checked . '>'; |
###################################################################### |
| } |
###################################################################### |
| |
sub titlefield { |
| sub searchphrasefield { |
my $title=shift; |
| my ($title,$name,$value)=@_; |
return $title; |
| my $instruction=<<END; |
} |
| Enter terms or phrases separated by search operators such |
|
| as AND or OR. |
###################################################################### |
| END |
###################################################################### |
| my $uctitle=uc($title); |
|
| return "\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:</b>". |
=pod |
| "</FONT> $instruction<br>". |
|
| '<input type=text name="'.$name.'" size=80 value=\''.$value.'\'>'; |
=item viewoptiontext() |
| } |
|
| |
Inputs: codename for view option |
| sub dateboxes { |
|
| my ($name,$defaultmonth,$defaultday,$defaultyear, |
Outputs: displayed text |
| $currentmonth,$currentday,$currentyear)=@_; |
|
| ($defaultmonth,$defaultday,$defaultyear)=('','',''); |
=cut |
| my $month=<<END; |
|
| <select name="${name}_month"> |
###################################################################### |
| <option value='$defaultmonth'> </option> |
###################################################################### |
| <option value="1">January</option> |
sub viewoptiontext { |
| <option value="2">February</option> |
my $code=shift; |
| <option value="3">March</option> |
my %desc=&Apache::lonlocal::texthash |
| <option value="4">April</option> |
('detailed' => "Detailed Citation View", |
| <option value="5">May</option> |
'xml' => 'XML/SGML', |
| <option value="6">June</option> |
'compact' => 'Compact View', |
| <option value="7">July</option> |
'fielded' => 'Fielded Format', |
| <option value="8">August</option> |
'summary' => 'Summary View'); |
| <option value="9">September</option> |
return $desc{$code}; |
| <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); |
=pod |
| my $day=<<END; |
|
| <select name="${name}_day"> |
=item viewoptions() |
| <option value='$defaultday'> </option> |
|
| <option value="1">1</option> |
Inputs: none |
| <option value="2">2</option> |
|
| <option value="3">3</option> |
Outputs: text for box with view options |
| <option value="4">4</option> |
|
| <option value="5">5</option> |
=cut |
| <option value="6">6</option> |
|
| <option value="7">7</option> |
###################################################################### |
| <option value="8">8</option> |
###################################################################### |
| <option value="9">9</option> |
sub viewoptions { |
| <option value="10">10</option> |
my $scrout="\n".'<nobr>'; |
| <option value="11">11</option> |
if (! defined($ENV{'form.viewselect'})) { |
| <option value="12">12</option> |
$ENV{'form.viewselect'}='detailed'; |
| <option value="13">13</option> |
} |
| <option value="14">14</option> |
$scrout.=&Apache::lonmeta::selectbox('viewselect', |
| <option value="15">15</option> |
$ENV{'form.viewselect'}, |
| <option value="16">16</option> |
\&viewoptiontext, |
| <option value="17">17</option> |
sort(keys(%Views))); |
| <option value="18">18</option> |
$scrout.= ' '; |
| <option value="19">19</option> |
my $countselect = &Apache::lonmeta::selectbox('show', |
| <option value="20">20</option> |
$ENV{'form.show'}, |
| <option value="21">21</option> |
undef, |
| <option value="22">22</option> |
(10,20,50,100,1000,10000)); |
| <option value="23">23</option> |
$scrout .= (' 'x2).&mt('[_1] Records per Page',$countselect). |
| <option value="24">24</option> |
'</nobr>'.$/; |
| <option value="25">25</option> |
return $scrout; |
| <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> |
=pod |
| </select> |
|
| END |
=item searchhelp() |
| $day=~s/(\"$currentday\")/$1 SELECTED/ if length($currentday); |
|
| my $year=<<END; |
Inputs: none |
| <select name="${name}_year"> |
|
| <option value='$defaultyear'> </option> |
Outputs: return little blurb on how to enter searches |
| <option value="1976">1976</option> |
|
| <option value="1977">1977</option> |
=cut |
| <option value="1978">1978</option> |
|
| <option value="1979">1979</option> |
###################################################################### |
| <option value="1980">1980</option> |
###################################################################### |
| <option value="1981">1981</option> |
sub searchhelp { |
| <option value="1982">1982</option> |
return &mt('Enter terms or phrases separated by AND, OR, or NOT'); |
| <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> |
=pod |
| <option value="1989">1989</option> |
|
| <option value="1990">1990</option> |
=item &get_persistent_form_data() |
| <option value="1991">1991</option> |
|
| <option value="1992">1992</option> |
Inputs: filename of database |
| <option value="1993">1993</option> |
|
| <option value="1994">1994</option> |
Outputs: returns undef on database errors. |
| <option value="1995">1995</option> |
|
| <option value="1996">1996</option> |
This function is the reverse of &make_persistent() for form data. |
| <option value="1997">1997</option> |
Retrieve persistent data from %persistent_db. Retrieved items will have their |
| <option value="1998">1998</option> |
values unescaped. If a form value already exists in $ENV, it will not be |
| <option value="1999">1999</option> |
overwritten. Form values that are array references may have values appended |
| <option value="2000">2000</option> |
to them. |
| <option value="2001">2001</option> |
|
| <option value="2002">2002</option> |
=cut |
| <option value="2003">2003</option> |
|
| <option value="2004">2004</option> |
###################################################################### |
| <option value="2005">2005</option> |
###################################################################### |
| <option value="2006">2006</option> |
sub get_persistent_form_data { |
| <option value="2007">2007</option> |
my $filename = shift; |
| <option value="2008">2008</option> |
return 0 if (! -e $filename); |
| <option value="2009">2009</option> |
return undef if (! tie(%persistent_db,'GDBM_File',$filename, |
| <option value="2010">2010</option> |
&GDBM_READER(),0640)); |
| <option value="2011">2011</option> |
# |
| <option value="2012">2012</option> |
# These make sure we do not get array references printed out as 'values'. |
| <option value="2013">2013</option> |
my %arrays_allowed = ('form.domains'=>1); |
| <option value="2014">2014</option> |
# |
| <option value="2015">2015</option> |
# Loop through the keys, looking for 'form.' |
| <option value="2016">2016</option> |
foreach my $name (keys(%persistent_db)) { |
| <option value="2017">2017</option> |
next if ($name !~ /^form./); |
| <option value="2018">2018</option> |
# Kludgification begins! |
| <option value="2019">2019</option> |
if ($name eq 'form.domains' && |
| <option value="2020">2020</option> |
$ENV{'form.searchmode'} eq 'basic' && |
| <option value="2021">2021</option> |
$ENV{'form.phase'} ne 'disp_basic') { |
| <option value="2022">2022</option> |
next; |
| <option value="2023">2023</option> |
} |
| <option value="2024">2024</option> |
# End kludge (hopefully) |
| <option value="2025">2025</option> |
next if (exists($ENV{$name})); |
| <option value="2026">2026</option> |
my @values = map { |
| <option value="2027">2027</option> |
&Apache::lonnet::unescape($_); |
| <option value="2028">2028</option> |
} split(',',$persistent_db{$name}); |
| <option value="2029">2029</option> |
next if (@values <1); |
| <option value="2030">2030</option> |
if ($arrays_allowed{$name}) { |
| <option value="2031">2031</option> |
$ENV{$name} = [@values]; |
| <option value="2032">2032</option> |
} else { |
| <option value="2033">2033</option> |
$ENV{$name} = $values[0] if ($values[0]); |
| <option value="2034">2034</option> |
} |
| <option value="2035">2035</option> |
} |
| <option value="2036">2036</option> |
untie (%persistent_db); |
| <option value="2037">2037</option> |
return 1; |
| <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> |
=pod |
| <option value="2044">2044</option> |
|
| <option value="2045">2045</option> |
=item &get_persistent_data() |
| <option value="2046">2046</option> |
|
| <option value="2047">2047</option> |
Inputs: filename of database, ref to array of values to recover. |
| <option value="2048">2048</option> |
|
| <option value="2049">2049</option> |
Outputs: array of values. Returns undef on error. |
| <option value="2050">2050</option> |
|
| <option value="2051">2051</option> |
This function is the reverse of &make_persistent(); |
| </select> |
Retrieve persistent data from %persistent_db. Retrieved items will have their |
| END |
values unescaped. If the item contains commas (before unescaping), the |
| $year=~s/(\"$currentyear\")/$1 SELECTED/ if length($currentyear); |
returned value will be an array pointer. |
| return "$month$day$year"; |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub get_persistent_data { |
| |
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,$values[0]; |
| |
} else { |
| |
push @Values,\@values; |
| |
} |
| |
} |
| |
untie (%persistent_db); |
| |
return @Values; |
| } |
} |
| |
|
| sub selectbox { |
###################################################################### |
| my ($title,$name,$value,%options)=@_; |
###################################################################### |
| my $uctitle=uc($title); |
|
| my $selout="\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:". |
|
| "</b></font><br>".'<select name="'.$name.'">'; |
|
| map { |
|
| $selout.='<option value=\''.$_.'\''; |
|
| if ($_ eq $value) { $selout.=' selected'; } |
|
| $selout.='>'.$options{$_}.'</option>'; |
|
| } sort keys %options; |
|
| return $selout.'</select>'; |
|
| } |
|
| |
|
| # ----------------------------------------------- Performing an advanced search |
|
| sub advancedsearch { |
|
| my ($r,$envhash)=@_; |
|
| my %ENV=%{$envhash}; |
|
| |
|
| |
=pod |
| |
|
| |
=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; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &make_form_data_persistent() |
| |
|
| |
Inputs: filename of persistent database. |
| |
|
| |
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. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub make_form_data_persistent { |
| |
my $r = shift; |
| |
my $filename = shift; |
| |
my %save; |
| |
foreach (keys(%ENV)) { |
| |
next if (!/^form/ || /submit/); |
| |
$save{$_} = $ENV{$_}; |
| |
} |
| |
return &make_persistent(\%save,$filename); |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &parse_advanced_search() |
| |
|
| |
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', |
| |
# 'custommetadata','customshow', |
| |
'modifyinguser','standards','mime'); |
| |
my @StatsFields = ('stdno','avetries','difficulty','disc'); |
| |
my @EvalFields = ('clear','depth','helpful','correct','technical'); |
| my $fillflag=0; |
my $fillflag=0; |
| |
my $pretty_search_string = "<br />\n"; |
| # 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/(not\s*$|^\s*(and|or)|)//gi; |
| $ENV{"form.$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', |
for my $field (@BasicFields) { |
| 'notes','abstract','mime','language','owner', |
if (&filled($ENV{'form.'.$field})) { |
| 'custommetadata') { |
|
| if (&filled($ENV{"form.$field"})) { |
|
| $fillflag++; |
$fillflag++; |
| } |
} |
| } |
} |
| unless ($fillflag) { |
for my $field ('lowestgradelevel','highestgradelevel') { |
| &output_blank_field_error($r); |
if ( $ENV{'form.'.$field} =~ /^\d+$/ && |
| return OK; |
$ENV{'form.'.$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 $field (@BasicFields) { |
| 'keywords','version','owner') { |
|
| if ($ENV{'form.'.$field}) { |
if ($ENV{'form.'.$field}) { |
| push @queries,&build_SQL_query($field,$ENV{'form.'.$field}); |
my $searchphrase = $ENV{'form.'.$field}; |
| } |
$pretty_search_string .= $font."$field</font> contains <b>". |
| |
$searchphrase."</b>"; |
| |
if ($ENV{'form.'.$field.'_related'}) { |
| |
my @New_Words; |
| |
($searchphrase,@New_Words) = &related_version($searchphrase); |
| |
if (@New_Words) { |
| |
$pretty_search_string .= " with related words: ". |
| |
"<b>@New_Words</b>."; |
| |
} else { |
| |
$pretty_search_string .= " with no related words."; |
| |
} |
| |
} |
| |
$pretty_search_string .= "<br />\n"; |
| |
push @queries,&build_SQL_query($field,$searchphrase); |
| |
} |
| |
} |
| |
# |
| |
# 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)) { |
| |
push @queries,&build_SQL_query('mime',$searchphrase); |
| |
$pretty_search_string .=$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); |
|
| } |
|
| &output_results('Advanced',$r,$envhash,$customquery,$reply); |
|
| } |
|
| elsif ($customquery) { |
|
| my $reply; # reply hash reference |
|
| $reply=&Apache::lonnet::metadata_query('', |
|
| $customquery,$customshow); |
|
| &output_results('Advanced',$r,$envhash,$customquery,$reply); |
|
| } |
|
| $r->print(' '); # just in case.. hrrmm.. |
|
| return OK; |
|
| } |
} |
| |
|
| # ---------------------------------------------------- see if a field is filled |
sub parse_domain_restrictions { |
| sub filled { |
my $libraries_to_query = undef; |
| my ($field)=@_; |
# $ENV{'form.domains'} can be either a scalar or an array reference. |
| if ($field=~/\S/) { |
# We need an array. |
| return 1; |
if (! exists($ENV{'form.domains'}) || $ENV{'form.domains'} eq '') { |
| } |
return (undef,''); |
| else { |
} |
| return 0; |
my @allowed_domains; |
| |
if (ref($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,$_; |
| |
} |
| |
} |
| } |
} |
| |
return ($libraries_to_query,$pretty_domains_string); |
| } |
} |
| |
|
| # --------------------------------------------------- Performing a basic search |
###################################################################### |
| sub basicsearch { |
###################################################################### |
| my ($r,$envhash)=@_; |
|
| my %ENV=%{$envhash}; |
|
| |
|
| |
=pod |
| |
|
| |
=item &parse_basic_search() |
| |
|
| |
Parse the basic search form and return a scalar containing an sql query. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
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'}; |
| |
$search_string =~ s/(not\s*$|^\s*(and|or)|)//gi; |
| |
if (! &filled($search_string)) { |
| |
&output_blank_field_error($r,$closebutton,'phase=disp_basic'); |
| return OK; |
return OK; |
| } |
} |
| |
my $pretty_search_string = '<b>'.$ENV{'form.basicexp'}.'</b>'; |
| |
if ($ENV{'form.related'}) { |
| |
my @New_Words; |
| |
($search_string,@New_Words) = &related_version($ENV{'form.basicexp'}); |
| |
if (@New_Words) { |
| |
$pretty_search_string .= " with related words: <b>@New_Words</b>."; |
| |
} else { |
| |
$pretty_search_string .= " with no related words."; |
| |
} |
| |
} |
| |
# |
| # Build SQL query string based on form page |
# Build SQL query string based on form page |
| my $query=''; |
my $query=''; |
| my $concatarg=join('," ",', |
my $concatarg=join(',', |
| ('title', 'author', 'subject', 'notes', 'abstract')); |
('title', 'author', 'subject', 'notes', 'abstract', |
| $query='select * from metadata where concat(' . $concatarg . ') like %' . |
'keywords')); |
| $ENV{'form.basicexp'} . '%'; |
$concatarg='title' if $ENV{'form.titleonly'}; |
| |
$query=&build_SQL_query('concat_ws(" ",'.$concatarg.')',$search_string); |
| |
if (defined($pretty_domains_string) && $pretty_domains_string ne '') { |
| |
$pretty_search_string .= ' '.$pretty_domains_string; |
| |
} |
| |
$pretty_search_string .= "<br />\n"; |
| |
my $final_query = 'SELECT * FROM metadata WHERE '.$query; |
| |
# &Apache::lonnet::logthis($final_query); |
| |
return ($final_query,$pretty_search_string, |
| |
$libraries_to_query); |
| |
} |
| |
|
| # Get reply (either a hash reference to filehandles or bad connection) |
###################################################################### |
| my $reply=&Apache::lonnet::metadata_query($query); |
###################################################################### |
| |
|
| # Output search results |
=pod |
| &output_results('Basic',$r,$envhash,$query,$reply); |
|
| |
|
| return OK; |
=item &related_version() |
| |
|
| |
Modifies an input string to include related words. Words in the string |
| |
are replaced with parenthesized lists of 'OR'd words. For example |
| |
"torque" is replaced with "(torque OR word1 OR word2 OR ...)". |
| |
|
| |
Note: Using this twice on a string is probably silly. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub related_version { |
| |
my $search_string = shift; |
| |
my $result = $search_string; |
| |
my %New_Words = (); |
| |
while ($search_string =~ /(\w+)/cg) { |
| |
my $word = $1; |
| |
next if (lc($word) =~ /\b(or|and|not)\b/); |
| |
my @Words = &Apache::loncommon::get_related_words($word); |
| |
@Words = ($#Words>4? @Words[0..4] : @Words); |
| |
foreach (@Words) { $New_Words{$_}++;} |
| |
my $replacement = join " OR ", ($word,@Words); |
| |
$result =~ s/(\b)$word(\b)/$1($replacement)$2/g; |
| |
} |
| |
return $result,sort(keys(%New_Words)); |
| } |
} |
| |
|
| # ---------------- Message to output when there are not enough fields filled in |
###################################################################### |
| sub output_blank_field_error { |
###################################################################### |
| my ($r)=@_; |
|
| # make query information persistent to allow for subsequent revision |
|
| my $persistent=&make_persistent(); |
|
| |
|
| $r->print(<<BEGINNING); |
=pod |
| |
|
| |
=item &build_SQL_query() |
| |
|
| |
Builds a SQL query string from a logical expression with AND/OR keywords |
| |
using Text::Query and &recursive_SQL_query_builder() |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub build_SQL_query { |
| |
my ($field_name,$logic_statement)=@_; |
| |
my $q=new Text::Query('abc', |
| |
-parse => 'Text::Query::ParseAdvanced', |
| |
-build => 'Text::Query::Build'); |
| |
$q->prepare($logic_statement); |
| |
my $matchexp=${$q}{'matchexp'}; chomp $matchexp; |
| |
my $sql_query=&recursive_SQL_query_build($field_name,$matchexp); |
| |
return $sql_query; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &build_custommetadata_query() |
| |
|
| |
Constructs a custom metadata query using a rather heinous regular |
| |
expression. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub build_custommetadata_query { |
| |
my ($field_name,$logic_statement)=@_; |
| |
my $q=new Text::Query('abc', |
| |
-parse => 'Text::Query::ParseAdvanced', |
| |
-build => 'Text::Query::BuildAdvancedString'); |
| |
$q->prepare($logic_statement); |
| |
my $matchexp=${$q}{'-parse'}{'-build'}{'matchstring'}; |
| |
# quick fix to change literal into xml tag-matching |
| |
# will eventually have to write a separate builder module |
| |
# wordone=wordtwo becomes\<wordone\>[^\<] *wordtwo[^\<]*\<\/wordone\> |
| |
$matchexp =~ s/(\w+)\\=([\w\\\+]+)?# wordone=wordtwo is changed to |
| |
/\\<$1\\>?# \<wordone\> |
| |
\[\^\\<\]?# [^\<] |
| |
\*$2\[\^\\<\]?# *wordtwo[^\<] |
| |
\*\\<\\\/$1\\>?# *\<\/wordone\> |
| |
/g; |
| |
return $matchexp; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &recursive_SQL_query_build() |
| |
|
| |
Recursively constructs an SQL query. Takes as input $dkey and $pattern. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub recursive_SQL_query_build { |
| |
my ($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 \"\%$value\%\")"; |
| |
} elsif (lc($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,$pattern); |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &build_date_queries() |
| |
|
| |
Builds a SQL logic query to check time/date entries. |
| |
Also reports errors (check for /^Incorrect/). |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub build_date_queries { |
| |
my ($cafter,$cbefore,$mafter,$mbefore) = @_; |
| |
my ($result,$error,$pretty_string); |
| |
# |
| |
# Verify the input |
| |
if (! defined($cafter) && ! defined($cbefore) && |
| |
! defined($mafter) && ! defined($mbefore)) { |
| |
# This is an okay situation, so return undef for the error |
| |
return (undef,undef,undef); |
| |
} |
| |
if ((defined($cafter) && ! defined($cbefore)) || |
| |
(defined($cbefore) && ! defined($cafter))) { |
| |
# This is bad, so let them know |
| |
$error = &mt('Incorrect entry for the creation date. '. |
| |
'You must specify both the beginning and ending dates.'); |
| |
} |
| |
if (! defined($error) && |
| |
((defined($mafter) && ! defined($mbefore)) || |
| |
(defined($mbefore) && ! defined($mafter)))) { |
| |
# This is also bad, so let them know |
| |
$error = &mt('Incorrect entry for the last revision date. '. |
| |
'You must specify both the beginning and ending dates.'); |
| |
} |
| |
if (! defined($error)) { |
| |
# |
| |
# Build the queries |
| |
my @queries; |
| |
if (defined($cbefore) && defined($cafter)) { |
| |
my (undef,undef,undef,$caday,$camon,$cayear) = localtime($cafter); |
| |
my (undef,undef,undef,$cbday,$cbmon,$cbyear) = localtime($cbefore); |
| |
# Correct for year being relative to 1900 |
| |
$cayear+=1900; $cbyear+=1900; |
| |
my $cquery= |
| |
'(creationdate BETWEEN '. |
| |
"'".$cayear.'-'.$camon.'-'.$caday."'". |
| |
' AND '. |
| |
"'".$cbyear.'-'.$cbmon.'-'.$cbday." 23:59:59')"; |
| |
$pretty_string .= '<br />' if (defined($pretty_string)); |
| |
$pretty_string .= |
| |
&mt('created between [_1] and [_2]', |
| |
&Apache::lonlocal::locallocaltime($cafter), |
| |
&Apache::lonlocal::locallocaltime($cbefore+24*60*60-1)); |
| |
push(@queries,$cquery); |
| |
$pretty_string =~ s/ 00:00:00//g; |
| |
} |
| |
if (defined($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) { |
| |
$result .= join(" AND ",@queries); |
| |
} |
| |
} |
| |
return ($result,$error,$pretty_string); |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item ©right_check() |
| |
|
| |
Inputs: $Metadata, a hash pointer of metadata for a resource. |
| |
|
| |
Returns: 1 if the resource is available to the user making the query, |
| |
0 otherwise. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub copyright_check { |
| |
my $Metadata = shift; |
| |
# Check copyright tags and skip results the user cannot use |
| |
my (undef,undef,$resdom,$resname) = split('/', |
| |
$Metadata->{'url'}); |
| |
# Check for priv |
| |
if (($Metadata->{'copyright'} eq 'priv') && |
| |
(($ENV{'user.name'} ne $resname) && |
| |
($ENV{'user.domain'} ne $resdom))) { |
| |
return 0; |
| |
} |
| |
# Check for domain |
| |
if (($Metadata->{'copyright'} eq 'domain') && |
| |
($ENV{'user.domain'} ne $resdom)) { |
| |
return 0; |
| |
} |
| |
return 1; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=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); |
| |
## |
| |
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; |
| |
} |
| |
my $result; |
| |
$result.=<<END; |
| <html> |
<html> |
| <head> |
<head> |
| <title>The LearningOnline Network with CAPA</title> |
<script> |
| BEGINNING |
function change_sort() { |
| $r->print(<<RESULTS); |
var newloc = "/adm/searchcat?phase=results"; |
| |
newloc += "&persistent_db_id=$ENV{'form.persistent_db_id'}"; |
| |
newloc += "&sortby="; |
| |
newloc += document.forms.statusform.elements.sortby.value; |
| |
parent.resultsframe.location= newloc; |
| |
} |
| |
</script> |
| |
<title>Results</title> |
| </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="" /> |
| <form method="post" action="/adm/searchcat"> |
END |
| $persistent |
|
| <input type='button' value='Revise search request' |
#<h2>Sort Results</h2> |
| onClick='this.form.submit();'> |
#Sort by: <select size="1" name="sortby" onchange="javascript:change_sort();"> |
| $closebutton |
# $ENV{'form.sortby'} = 'id' if (! defined($ENV{'form.sortby'})); |
| <hr> |
# foreach (keys(%SortableFields)) { |
| <h3>Helpful Message</h3> |
# $result.="<option name=\"$_\""; |
| |
# if ($_ eq $ENV{'form.sortby'}) { |
| |
# $result.=" selected "; |
| |
# } |
| |
# $result.=" >$SortableFields{$_}</option>\n"; |
| |
# } |
| |
# $result.="</select>\n"; |
| |
my $revise = &revise_button(); |
| |
$result.=<<END; |
| <p> |
<p> |
| Incorrect search query due to blank entry fields. |
There are $total_results matches to your query. $revise |
| You need to fill in the relevant |
</p><p> |
| fields on the search page in order for a query to be |
Search:$pretty_query_string |
| processed. |
|
| </p> |
</p> |
| |
</form> |
| </body> |
</body> |
| </html> |
</html> |
| RESULTS |
END |
| |
$r->print($result); |
| |
return; |
| } |
} |
| |
|
| # ----------------------------- format and output results based on a reply list |
##################################################################### |
| sub output_results { |
##################################################################### |
| my ($mode,$r,$envhash,$query,@replylist)=@_; |
|
| my %ENV=%{$envhash}; |
|
| my $compiledresult=''; |
|
| |
|
| foreach my $reply (@replylist) { |
|
| |
|
| my @results; |
|
| |
|
| my $replyfile=''; |
|
| $reply=~/^([\.\w]+)$/; # must do since 'use strict' checks for tainting |
|
| $replyfile=$r->dir_config('lonDaemons').'/tmp/'.$1; |
|
| $reply=~/(.*?)\_/; |
|
| my $hostname=$1; |
|
| sleep 3; # temporary fix, need to check for completion and status |
|
| { |
|
| while (1) { |
|
| last if -e $replyfile; |
|
| sleep 1; |
|
| } |
|
| # QUESTION: how should I handle this error condition.. |
|
| # I'm sure there is syntax elsewhere I can use.. |
|
| my $fh=Apache::File->new($replyfile) or |
|
| ($r->print('file cannot be opened') and return OK); |
|
| @results=<$fh>; |
|
| } |
|
| |
|
| my $customshow=''; |
=pod |
| 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; |
|
| } |
|
| } |
|
| 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; |
|
| my $shortabstract=$abstract; |
|
| $shortabstract=substr($abstract,0,200) if length($abstract)>200; |
|
| $fields[7]=$shortabstract; |
|
| 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; |
=item MySQL Table Description |
| <hr align='left' width='200' noshade /> |
|
| |
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"); |
| |
$r->rflush(); |
| |
} |
| |
|
| |
sub update_status { |
| |
my ($r,$text) = @_; |
| |
$text =~ s/\'/\\\'/g; |
| |
$r->print |
| |
("<script>document.statusform.status.value = ' $text'</script>\n"); |
| |
$r->rflush(); |
| |
} |
| |
|
| |
{ |
| |
my $max_time = 40; # seconds for the search to complete |
| |
my $start_time = 0; |
| |
my $last_time = 0; |
| |
|
| |
sub reset_timing { |
| |
$start_time = 0; |
| |
$last_time = 0; |
| |
} |
| |
|
| |
sub time_left { |
| |
if ($start_time == 0) { |
| |
$start_time = time; |
| |
} |
| |
my $time_left = $max_time - (time - $start_time); |
| |
$time_left = 0 if ($time_left < 0); |
| |
return $time_left; |
| |
} |
| |
|
| |
sub update_seconds { |
| |
my ($r) = @_; |
| |
my $time = &time_left(); |
| |
if (($last_time-$time) > 0) { |
| |
$r->print("<script>". |
| |
"document.statusform.seconds.value = '$time'". |
| |
"</script>\n"); |
| |
$r->rflush(); |
| |
} |
| |
$last_time = $time; |
| |
} |
| |
|
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &revise_button() |
| |
|
| |
Inputs: None |
| |
|
| |
Returns: html string for a 'revise search' button. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub revise_button { |
| |
my $revise_phase = 'disp_basic'; |
| |
$revise_phase = 'disp_adv' if ($ENV{'form.searchmode'} eq 'advanced'); |
| |
my $newloc = '/adm/searchcat'. |
| |
'?persistent_db_id='.$ENV{'form.persistent_db_id'}. |
| |
'&cleargroupsort=1'. |
| |
'&phase='.$revise_phase; |
| |
my $result = qq{<input type="button" value="Revise search" name="revise"} . |
| |
qq{ onClick="parent.location='$newloc';" /> }; |
| |
return $result; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &run_search() |
| |
|
| |
Executes a search query by sending it the the other servers and putting the |
| |
results into MySQL. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub run_search { |
| |
my ($r,$query,$customquery,$customshow,$serverlist,$pretty_string) = @_; |
| |
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1); |
| |
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 |
END |
| $compiledresult.=<<END; |
# Check to see if $pretty_string has more than one carriage return. |
| <p> |
# Assume \n s are following <br /> s and truncate the value. |
| |
# (there is probably a better way)... |
| |
my @Lines = split /<br \/>/,$pretty_string; |
| |
if (@Lines > 2) { |
| |
$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 |
END |
| $compiledresult.=<<END if $ENV{'form.catalogmode'} eq 'interactive'; |
$r->rflush(); |
| |
&reset_timing(); |
| |
&update_seconds($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($r, |
| |
&mt('waiting on [_1]',join(' ',keys(%Server_status)))); |
| |
} |
| |
sleep(1); |
| |
} |
| |
# |
| |
# Loop through the servers we have contacted but do not |
| |
# have results from yet, looking for results. |
| |
while (my ($server,$status) = each(%Server_status)) { |
| |
last if ($connection->aborted()); |
| |
&update_seconds($r); |
| |
if ($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; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &prev_next_buttons() |
| |
|
| |
Returns html for the previous and next buttons on the search results page. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub prev_next_buttons { |
| |
my ($current_min,$show,$total,$parms) = @_; |
| |
return '' if ($show eq 'all'); # No links if you get them all at once. |
| |
# |
| |
# Create links |
| |
my $prev_min = $current_min - $show; |
| |
$prev_min = 1 if $prev_min < 1; |
| |
my $prevlink = |
| |
qq{<a href="/adm/searchcat?$parms&start=$prev_min&show=$show">}; |
| |
# |
| |
my $next_min = $current_min + $show; |
| |
$next_min = $current_min if ($next_min > $total); |
| |
my $nextlink = |
| |
qq{<a href="/adm/searchcat?$parms&start=$next_min&show=$show">}; |
| |
my $reloadlink = |
| |
qq{<a href="/adm/searchcat?$parms&start=$current_min&$show=$show">}; |
| |
# |
| |
# Determine which parameters to pass |
| |
my $String = '[_1]prev[_2] [_3]reload[_4] [_5]next[_6]'; |
| |
if ($prev_min == $current_min) { |
| |
$String =~ s:\[_[12]\]::g; |
| |
} |
| |
if ($next_min == $current_min) { |
| |
$String =~ s:\[_[56]\]::g; |
| |
} |
| |
my $links = &mt($String, |
| |
$prevlink, '</a>', |
| |
$reloadlink,'</a>', |
| |
$nextlink, '</a>'); |
| |
return $links; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &display_results() |
| |
|
| |
Prints the results out for selection and perusal. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub display_results { |
| |
my ($r,$importbutton,$closebutton,$diropendb) = @_; |
| |
my $connection = $r->connection; |
| |
$r->print(&search_results_header($importbutton,$closebutton)); |
| |
## |
| |
## Set viewing function |
| |
## |
| |
my $viewfunction = $Views{$ENV{'form.viewselect'}}; |
| |
if (!defined($viewfunction)) { |
| |
$r->print("Internal Error - Bad view selected.\n"); |
| |
$r->rflush(); |
| |
return; |
| |
} |
| |
## |
| |
## $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'})); |
| |
$ENV{'form.show'} = 'all' if (! exists($ENV{'form.show'})); |
| |
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 links (if necessary) for 'prev' and 'next' pages. |
| |
$r->print |
| |
('<center>'. |
| |
&prev_next_buttons($min,$ENV{'form.show'},$total_results, |
| |
"table=".$ENV{'form.table'}. |
| |
"&phase=results". |
| |
"&persistent_db_id=".$ENV{'form.persistent_db_id'}) |
| |
."</center>\n" |
| |
); |
| |
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>Results $min to $max out of $total_results</center>\n"); |
| |
} |
| |
## |
| |
## Get results from MySQL table |
| |
my @Results = &Apache::lonmysql::get_rows($table, |
| |
'id>='.$min.' AND id<='.$max); |
| |
## |
| |
## 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>"); |
| |
$r->rflush(); |
| |
untie %groupsearch_db if (tied(%groupsearch_db)); |
| |
return; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &catalogmode_output($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') { |
| |
$output.=<<END |
| <font size='-1'><INPUT TYPE="button" NAME="returnvalues" VALUE="SELECT" |
<font size='-1'><INPUT TYPE="button" NAME="returnvalues" VALUE="SELECT" |
| onClick="javascript:select_data('$title','$url')"> |
onClick="javascript:select_data('$title','$url')"> |
| </font> |
</font> |
| <br> |
|
| END |
END |
| my $httphost=$ENV{'HTTP_HOST'}; |
} |
| |
} elsif ($ENV{'form.catalogmode'} eq 'groupsearch') { |
| |
$groupsearch_db{"pre_${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; |
| |
} |
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &parse_row() |
| |
|
| my $viewselect; |
Parse a row returned from the database. |
| if ($mode eq 'Basic') { |
|
| $viewselect=$ENV{'form.basicviewselect'}; |
=cut |
| } |
|
| elsif ($mode eq 'Advanced') { |
###################################################################### |
| $viewselect=$ENV{'form.advancedviewselect'}; |
###################################################################### |
| } |
sub parse_row { |
| |
my @Row = @_; |
| if ($viewselect eq 'Detailed Citation View') { |
my %Fields; |
| $compiledresult.=&detailed_citation_view(@fields, |
if (! scalar(@Datatypes)) { |
| $hostname,$httphost, |
&set_up_table_structure(); |
| $extrashow2); |
} |
| } |
for (my $i=0;$i<=$#Row;$i++) { |
| elsif ($viewselect eq 'Summary View') { |
$Fields{$Datatypes[$i]->{'name'}}=&Apache::lonnet::unescape($Row[$i]); |
| $compiledresult.=&summary_view(@fields,$hostname,$httphost, |
} |
| $extrashow2); |
$Fields{'language'} = |
| } |
&Apache::loncommon::languagedescription($Fields{'language'}); |
| elsif ($viewselect eq 'Fielded Format') { |
$Fields{'copyrighttag'} = |
| $compiledresult.=&fielded_format_view(@fields,$hostname, |
&Apache::loncommon::copyrightdescription($Fields{'copyright'}); |
| $httphost,$extrashow2); |
$Fields{'mimetag'} = |
| } |
&Apache::loncommon::filedescription($Fields{'mime'}); |
| elsif ($viewselect eq 'XML/SGML') { |
return \%Fields; |
| $compiledresult.=&xml_sgml_view(@fields,$hostname,$httphost, |
} |
| $extrashow2); |
|
| } |
|
| |
|
| |
########################################################### |
| |
########################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &parse_raw_result() |
| |
|
| |
Takes a line from the file of results and parse it. Returns a hash |
| |
with keys according to column labels |
| |
|
| |
In addition, the following tags are set by calling the appropriate |
| |
lonnet function: 'language', 'copyrighttag', 'mimetag'. |
| |
|
| |
The 'title' field is set to "Untitled" if the title field is blank. |
| |
|
| |
'abstract' and 'keywords' are truncated to 200 characters. |
| |
|
| |
=cut |
| |
|
| |
########################################################### |
| |
########################################################### |
| |
sub parse_raw_result { |
| |
my ($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; |
| |
} |
| |
|
| |
########################################################### |
| |
########################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &handle_custom_fields() |
| |
|
| |
=cut |
| |
|
| |
########################################################### |
| |
########################################################### |
| |
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); |
| |
} |
| |
|
| unless ($compiledresult) { |
###################################################################### |
| $compiledresult="There were no results that matched your query"; |
###################################################################### |
| } |
|
| |
|
| # make query information persistent to allow for subsequent revision |
=pod |
| my $persistent=&make_persistent(); |
|
| |
|
| $r->print(<<BEGINNING); |
=item &search_results_header() |
| <html> |
|
| <head> |
Output the proper html headers and javascript code to deal with different |
| <title>The LearningOnline Network with CAPA</title> |
calling modes. |
| BEGINNING |
|
| $r->print(<<SCRIPT) if $ENV{'form.catalogmode'} eq 'interactive'; |
Takes most inputs directly from %ENV, except $mode. |
| <script> |
|
| |
=over 4 |
| |
|
| |
=item $mode is either (at this writing) 'Basic' or 'Advanced' |
| |
|
| |
=back |
| |
|
| |
The following environment variables are checked: |
| |
|
| |
=over 4 |
| |
|
| |
=item 'form.catalogmode' |
| |
|
| |
Checked for 'interactive' and 'groupsearch'. |
| |
|
| |
=item 'form.mode' |
| |
|
| |
Checked for existance & 'edit' mode. |
| |
|
| |
=item 'form.form' |
| |
|
| |
Contains the name of the form that has the input fields to set |
| |
|
| |
=item 'form.element' |
| |
|
| |
the name of the input field to put the URL into |
| |
|
| |
=item 'form.titleelement' |
| |
|
| |
the name of the input field to put the title into |
| |
|
| |
=back |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub search_results_header { |
| |
my ($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) { |
function select_data(title,url) { |
| changeTitle(title); |
changeTitle(title); |
| changeURL(url); |
changeURL(url); |
| |
parent.close(); |
| } |
} |
| function changeTitle(val) { |
function changeTitle(val) { |
| if (opener.inf.document.forms.resinfo.elements.t) { |
if (parent.opener.inf.document.forms.resinfo.elements.t) { |
| opener.inf.document.forms.resinfo.elements.t.value=val; |
parent.opener.inf.document.forms.resinfo.elements.t.value=val; |
| } |
} |
| } |
} |
| function changeURL(val) { |
function changeURL(val) { |
| if (opener.inf.document.forms.resinfo.elements.u) { |
if (parent.opener.inf.document.forms.resinfo.elements.u) { |
| opener.inf.document.forms.resinfo.elements.u.value=val; |
parent.opener.inf.document.forms.resinfo.elements.u.value=val; |
| } |
} |
| } |
} |
| </script> |
</script> |
| SCRIPT |
SCRIPT |
| $r->print(<<RESULTS); |
} elsif ($ENV{'form.mode'} eq 'edit') { |
| </head> |
my $form = $ENV{'form.form'}; |
| <body bgcolor="#ffffff"> |
my $element = $ENV{'form.element'}; |
| <img align=right src=/adm/lonIcons/lonlogos.gif> |
my $titleelement = $ENV{'form.titleelement'}; |
| <h1>Search Catalog</h1> |
my $changetitle; |
| <form method="post" action="/adm/searchcat"> |
if (!$titleelement) { |
| $customdata |
$changetitle='function changeTitle(val) {}'; |
| <input type='button' value='Revise search request' |
} else { |
| onClick='this.form.submit();'> |
$changetitle=<<END; |
| $closebutton |
function changeTitle(val) { |
| $persistent |
if (parent.targetwin.document) { |
| <hr> |
parent.targetwin.document.forms["$form"].elements["$titleelement"].value=val; |
| <h3>Search Query</h3> |
} else { |
| RESULTS |
var url = 'forms[\"$form\"].elements[\"$titleelement\"].value'; |
| if ($mode eq 'Basic') { |
alert("Unable to transfer data to "+url); |
| $r->print(<<RESULTS); |
|
| <p> |
|
| <b>Basic search:</b> $ENV{'form.basicexp'} |
|
| </p> |
|
| RESULTS |
|
| } |
} |
| elsif ($mode eq 'Advanced') { |
} |
| $r->print(<<RESULTS); |
END |
| <p> |
} |
| <b>Advanced search</b> |
|
| $query |
$result.=<<SCRIPT; |
| </p> |
<script type="text/javascript"> |
| RESULTS |
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); |
| } |
} |
| $r->print(<<RESULTS); |
} |
| <h3>Search Results</h3> |
</script> |
| $compiledresult |
SCRIPT |
| </body> |
} |
| </html> |
} |
| RESULTS |
$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="" > |
| |
<input type="hidden" name="Queue" value="" /> |
| |
$importbutton |
| |
END |
| |
return $result; |
| } |
} |
| |
|
| # ------------------------------------------------------------- build_SQL_query |
###################################################################### |
| sub build_SQL_query { |
###################################################################### |
| my ($field_name,$logic_statement)=@_; |
sub search_status_header { |
| my $q=new Text::Query('abc', |
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1); |
| -parse => 'Text::Query::ParseAdvanced', |
return <<ENDSTATUS; |
| -build => 'Text::Query::Build'); |
<html><head><title>Search Status</title></head> |
| $q->prepare($logic_statement); |
$bodytag |
| my $matchexp=${$q}{'matchexp'}; chomp $matchexp; |
<h3>Search Status</h3> |
| my $sql_query=&recursive_SQL_query_build($field_name,$matchexp); |
Sending search request to LON-CAPA servers.<br /> |
| return $sql_query; |
ENDSTATUS |
| } |
} |
| |
|
| # ------------------------------------------------- build custom metadata query |
sub results_link { |
| sub build_custommetadata_query { |
my $basic_link = "/adm/searchcat?"."&table=".$ENV{'form.table'}. |
| my ($field_name,$logic_statement)=@_; |
"&persistent_db_id=".$ENV{'form.persistent_db_id'}; |
| my $q=new Text::Query('abc', |
my $results_link = $basic_link."&phase=results". |
| -parse => 'Text::Query::ParseAdvanced', |
"&pause=1"."&start=1"; |
| -build => 'Text::Query::BuildAdvancedString'); |
return $results_link; |
| $q->prepare($logic_statement); |
|
| my $matchexp=${$q}{'-parse'}{'-build'}{'matchstring'}; |
|
| # quick fix to change literal into xml tag-matching |
|
| # will eventually have to write a separate builder module |
|
| my $oldmatchexp=$matchexp; |
|
| $matchexp=~s/(\w+)\\\=([\w\\\+]+)/\\\<$1\\\>\[\^\\\<\]\*$2\[\^\\\<\]\*\\\<\\\/$1\\\>/g; |
|
| return $matchexp; |
|
| } |
} |
| |
|
| # - Recursively parse a reverse notation expression into a SQL query expression |
###################################################################### |
| sub recursive_SQL_query_build { |
###################################################################### |
| my ($dkey,$pattern)=@_; |
sub print_frames_interface { |
| my @matches=($pattern=~/(\[[^\]|\[]*\])/g); |
my $r = shift; |
| return $pattern unless @matches; |
my $basic_link = "/adm/searchcat?"."&table=".$ENV{'form.table'}. |
| foreach my $match (@matches) { |
"&persistent_db_id=".$ENV{'form.persistent_db_id'}; |
| $match=~/\[ (\w+)\s(.*) \]/; |
my $run_search_link = $basic_link."&phase=run_search"; |
| my ($key,$value)=($1,$2); |
my $results_link = &results_link(); |
| my $replacement=''; |
my $result = <<"ENDFRAMES"; |
| if ($key eq 'literal') { |
<html> |
| $replacement="($dkey like \"\%$value\%\")"; |
<head> |
| } |
<script> |
| elsif ($key eq 'and') { |
var targetwin = opener; |
| $value=~/(.*[\"|\)]) ([|\(|\^].*)/; |
var queue = ''; |
| $replacement="($1 AND $2)"; |
</script> |
| } |
<title>LON-CAPA Digital Library Search Results</title> |
| elsif ($key eq 'or') { |
</head> |
| $value=~/(.*[\"|\)]) ([|\(|\^].*)/; |
<frameset rows="150,*"> |
| $replacement="($1 OR $2)"; |
<frame name="statusframe" src="$run_search_link"> |
| } |
<frame name="resultsframe" src="$results_link"> |
| substr($pattern, |
</frameset> |
| index($pattern,$match), |
</html> |
| length($match), |
ENDFRAMES |
| $replacement |
|
| ); |
$r->print($result); |
| } |
return; |
| &recursive_SQL_query_build($dkey,$pattern); |
|
| } |
} |
| |
|
| # ------------------------------------------------------ Detailed Citation View |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=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 |
| |
|
| |
=item &detailed_citation_view() |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| sub detailed_citation_view { |
sub detailed_citation_view { |
| my ($title,$author,$subject,$url,$keywords,$version, |
my ($prefix,%values) = @_; |
| $notes,$shortabstract,$mime,$lang, |
my $icon= |
| $creationdate,$lastrevisiondate,$owner,$copyright, |
my $result; |
| $hostname,$httphost,$extrashow)=@_; |
$result .= '<b>'.$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=>'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=>'stdno', |
| |
translate => '<b>Number of Students:</b> [_1]',}, |
| |
{ name=>'avetries', |
| |
translate => '<b>Average Tries:</b> [_1]',}, |
| |
{ name=>'disc', |
| |
translate => '<b>Degree of Discrimination:</b> [_1]',}, |
| |
{ name=>'difficulty', |
| |
translate => '<b>Degree of Difficulty:</b> [_1]',}, |
| |
{ name=>'clear', |
| |
translate => '<b>Clear:</b> [_1]',}, |
| |
{ name=>'depth', |
| |
translate => '<b>Depth:</b> [_1]',}, |
| |
{ name=>'helpful', |
| |
translate => '<b>Helpful:</b> [_1]',}, |
| |
{ name=>'correct', |
| |
translate => '<b>Correcy:</b> [_1]',}, |
| |
{ name=>'technical', |
| |
translate => '<b>Technical:</b> [_1]',}, |
| |
) { |
| |
$result.= &mt($field->{'translate'},$values{$field->{'name'}}). |
| |
"<br />\n"; |
| |
} |
| |
$result .= "</p>".$values{'extrashow'}. |
| |
'<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; |
my $result=<<END; |
| <i>$owner</i>, last revised $lastrevisiondate |
$prefix<img src="$icon" /><a href="http://$ENV{'HTTP_HOST'}$values{'url'}" |
| <h3><A HREF="http://$httphost$url" TARGET='search_preview'>$title</A></h3> |
target='search_preview'>$values{'author'}</a><br /> |
| <h3>$author</h3> |
$values{'title'}<br /> |
| </p> |
$values{'owner'} -- $values{'lastrevisiondate'}<br /> |
| <p> |
$values{'copyrighttag'}<br /> |
| <b>Subject:</b> $subject<br> |
$values{'extrashow'} |
| <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> |
</p> |
| |
<hr align='left' width='200' noshade /> |
| END |
END |
| return $result; |
return $result; |
| } |
} |
| |
|
| # ---------------------------------------------------------------- Summary View |
###################################################################### |
| sub summary_view { |
###################################################################### |
| my ($title,$author,$subject,$url,$keywords,$version, |
|
| $notes,$shortabstract,$mime,$lang, |
=pod |
| $creationdate,$lastrevisiondate,$owner,$copyright, |
|
| $hostname,$httphost,$extrashow)=@_; |
=item &compact_view() |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub compact_view { |
| |
my ($prefix,%values) = @_; |
| |
my $icon=&Apache::loncommon::icon($values{'url'}); |
| my $result=<<END; |
my $result=<<END; |
| <a href="http://$httphost$url" TARGET='search_preview'>$author</a><br /> |
$prefix <img src="$icon" /> <a href="http://$ENV{'HTTP_HOST'}$values{'url'}" target='search_preview'> |
| $title<br /> |
$values{'title'}</a> |
| $owner -- $lastrevisiondate<br /> |
<b>$values{'author'}</b><br /> |
| $cprtag{$copyright}<br /> |
|
| $extrashow |
|
| </p> |
|
| END |
END |
| return $result; |
return $result; |
| } |
} |
| |
|
| # -------------------------------------------------------------- Fielded Format |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &fielded_format_view() |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| sub fielded_format_view { |
sub fielded_format_view { |
| my ($title,$author,$subject,$url,$keywords,$version, |
my ($prefix,%values) = @_; |
| $notes,$shortabstract,$mime,$lang, |
my $icon=&Apache::loncommon::icon($values{'url'}); |
| $creationdate,$lastrevisiondate,$owner,$copyright, |
|
| $hostname,$httphost,$extrashow)=@_; |
|
| my $result=<<END; |
my $result=<<END; |
| <b>URL: </b> <A HREF="http://$httphost$url" TARGET='search_preview'>$url</A> |
$prefix <img src="$icon" /> |
| |
<b>URL: </b> <a href="http://$ENV{'HTTP_HOST'}$values{'url'}" |
| |
target='search_preview'>$values{'url'}</a> |
| <br /> |
<br /> |
| <b>Title:</b> $title<br /> |
<b>Title:</b> $values{'title'}<br /> |
| <b>Author(s):</b> $author<br /> |
<b>Author(s):</b> $values{'author'}<br /> |
| <b>Subject:</b> $subject<br /> |
<b>Subject:</b> $values{'subject'}<br /> |
| <b>Keyword(s):</b> $keywords<br /> |
<b>Keyword(s):</b> $values{'keywords'}<br /> |
| <b>Notes:</b> $notes<br /> |
<b>Notes:</b> $values{'notes'}<br /> |
| <b>MIME Type:</b> $mimetag{$mime}<br /> |
<b>MIME Type:</b> $values{'mimetag'}<br /> |
| <b>Language:</b> $language{$lang}<br /> |
<b>Language:</b> $values{'language'}<br /> |
| <b>Creation Date:</b> $creationdate<br /> |
<b>Creation Date:</b> $values{'creationdate'}<br /> |
| <b>Last Revision Date:</b> $lastrevisiondate<br /> |
<b>Last Revision Date:</b> $values{'lastrevisiondate'}<br /> |
| <b>Publisher/Owner:</b> $owner<br /> |
<b>Publisher/Owner:</b> $values{'owner'}<br /> |
| <b>Copyright/Distribution:</b> $cprtag{$copyright}<br /> |
<b>Copyright/Distribution:</b> $values{'copyrighttag'}<br /> |
| <b>Repository Location:</b> $hostname<br /> |
<b>Repository Location:</b> $values{'hostname'}<br /> |
| <b>Abstract:</b> $shortabstract<br /> |
<b>Abstract:</b> $values{'shortabstract'}<br /> |
| $extrashow |
$values{'extrashow'} |
| </p> |
</p> |
| |
<hr align='left' width='200' noshade /> |
| END |
END |
| return $result; |
return $result; |
| } |
} |
| |
|
| # -------------------------------------------------------------------- XML/SGML |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &xml_sgml_view() |
| |
|
| |
=back |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| sub xml_sgml_view { |
sub xml_sgml_view { |
| my ($title,$author,$subject,$url,$keywords,$version, |
my ($prefix,%values) = @_; |
| $notes,$shortabstract,$mime,$lang, |
my $xml = <<END; |
| $creationdate,$lastrevisiondate,$owner,$copyright, |
<LonCapaResource> |
| $hostname,$httphost,$extrashow)=@_; |
<url>$values{'url'}</url> |
| |
<title>$values{'title'}</title> |
| |
<author>$values{'author'}</author> |
| |
<subject>$values{'subject'}</subject> |
| |
<keywords>$values{'keywords'}</keywords> |
| |
<notes>$values{'notes'}</notes> |
| |
<mimeInfo> |
| |
<mime>$values{'mime'}</mime> |
| |
<mimetag>$values{'mimetag'}</mimetag> |
| |
</mimeInfo> |
| |
<languageInfo> |
| |
<language>$values{'language'}</language> |
| |
<languagetag>$values{'languagetag'}</languagetag> |
| |
</languageInfo> |
| |
<creationdate>$values{'creationdate'}</creationdate> |
| |
<lastrevisiondate>$values{'lastrevisiondate'}</lastrevisiondate> |
| |
<owner>$values{'owner'}</owner> |
| |
<copyrightInfo> |
| |
<copyright>$values{'copyright'}</copyright> |
| |
<copyrighttag>$values{'copyrighttag'}</copyrighttag> |
| |
</copyrightInfo> |
| |
<repositoryLocation>$values{'hostname'}</repositoryLocation> |
| |
<shortabstract>$values{'shortabstract'}</shortabstract> |
| |
</LonCapaResource> |
| |
END |
| |
$xml = &HTML::Entities::encode($xml,'<>&'); |
| my $result=<<END; |
my $result=<<END; |
| |
$prefix |
| <pre> |
<pre> |
| <LonCapaResource> |
$xml |
| <url>$url</url> |
|
| <title>$title</title> |
|
| <author>$author</author> |
|
| <subject>$subject</subject> |
|
| <keywords>$keywords</keywords> |
|
| <notes>$notes</notes> |
|
| <mimeInfo> |
|
| <mime>$mime</mime> |
|
| <mimetag>$mimetag{$mime}</mimetag> |
|
| </mimeInfo> |
|
| <languageInfo> |
|
| <language>$lang</language> |
|
| <languagetag>$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> |
</pre> |
| $extrashow |
$values{'extrashow'} |
| |
<hr align='left' width='200' noshade /> |
| END |
END |
| return $result; |
return $result; |
| } |
} |
| |
|
| sub build_date_queries { |
###################################################################### |
| my ($cmonth1,$cday1,$cyear1,$cmonth2,$cday2,$cyear2, |
###################################################################### |
| $lmonth1,$lday1,$lyear1,$lmonth2,$lday2,$lyear2)=@_; |
|
| my @queries; |
=pod |
| if ($cmonth1 or $cday1 or $cyear1 or $cmonth2 or $cday2 or $cyear2) { |
|
| unless ($cmonth1 and $cday1 and $cyear1 and |
=item &filled() see if field is filled. |
| $cmonth2 and $cday2 and $cyear2) { |
|
| return "Incorrect entry for the creation date. You must specify ". |
=cut |
| "a starting month, day, and year and an ending month, ". |
|
| "day, and year."; |
###################################################################### |
| } |
###################################################################### |
| my $cnumeric1=sprintf("%d%2d%2d",$cyear1,$cmonth1,$cday1); |
sub filled { |
| $cnumeric1+=0; |
my ($field)=@_; |
| my $cnumeric2=sprintf("%d%2d%2d",$cyear2,$cmonth2,$cday2); |
if ($field=~/\S/ && $field ne 'any') { |
| $cnumeric2+=0; |
return 1; |
| if ($cnumeric1>$cnumeric2) { |
} else { |
| return "Incorrect entry for the creation date. The starting ". |
return 0; |
| "date must occur before the ending date."; |
|
| } |
|
| my $cquery="(creationdate BETWEEN '$cyear1-$cmonth1-$cday1' AND '". |
|
| "$cyear2-$cmonth2-$cday2 23:59:59')"; |
|
| push @queries,$cquery; |
|
| } |
|
| if ($lmonth1 or $lday1 or $lyear1 or $lmonth2 or $lday2 or $lyear2) { |
|
| unless ($lmonth1 and $lday1 and $lyear1 and |
|
| $lmonth2 and $lday2 and $lyear2) { |
|
| return "Incorrect entry for the last revision date. You must ". |
|
| "specify a starting month, day, and year and an ending ". |
|
| "month, day, and year."; |
|
| } |
|
| my $lnumeric1=sprintf("%d%2d%2d",$lyear1,$lmonth1,$lday1); |
|
| $lnumeric1+=0; |
|
| my $lnumeric2=sprintf("%d%2d%2d",$lyear2,$lmonth2,$lday2); |
|
| $lnumeric2+=0; |
|
| if ($lnumeric1>$lnumeric2) { |
|
| return "Incorrect entry for the last revision date. The ". |
|
| "starting date must occur before the ending date."; |
|
| } |
|
| my $lquery="(lastrevisiondate BETWEEN '$lyear1-$lmonth1-$lday1' AND '". |
|
| "$lyear2-$lmonth2-$lday2 23:59:59')"; |
|
| push @queries,$lquery; |
|
| } |
|
| if (@queries) { |
|
| return join(" AND ",@queries); |
|
| } |
} |
| return ''; |
|
| } |
} |
| |
|
| sub output_date_error { |
###################################################################### |
| my ($r,$message)=@_; |
###################################################################### |
| # make query information persistent to allow for subsequent revision |
|
| my $persistent=&make_persistent(); |
=pod |
| |
|
| |
=item &output_blank_field_error() |
| |
|
| |
Output a complete page that indicates the user has not filled in enough |
| |
information to do a search. |
| |
|
| |
Inputs: $r (Apache request handle), $closebutton, $parms. |
| |
|
| |
Returns: nothing |
| |
|
| |
$parms is extra information to include in the 'Revise search request' link. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub output_blank_field_error { |
| |
my ($r,$closebutton,$parms,$hidden_fields)=@_; |
| |
my $bodytag=&Apache::loncommon::bodytag(undef,undef,undef,1); |
| |
# make query information persistent to allow for subsequent revision |
| $r->print(<<BEGINNING); |
$r->print(<<BEGINNING); |
| <html> |
<html> |
| <head> |
<head> |
|
Line 1117 sub output_date_error {
|
Line 3064 sub output_date_error {
|
| BEGINNING |
BEGINNING |
| $r->print(<<RESULTS); |
$r->print(<<RESULTS); |
| </head> |
</head> |
| <body bgcolor="#ffffff"> |
$bodytag |
| <img align=right src=/adm/lonIcons/lonlogos.gif> |
<img align='right' src='/adm/lonIcons/lonlogos.gif' /> |
| <h1>Search Catalog</h1> |
<h1>Search Catalog</h1> |
| <form method="post" action="/adm/searchcat"> |
<form method="post" action="/adm/searchcat"> |
| $persistent |
$hidden_fields |
| |
<a href="/adm/searchcat?$parms&persistent_db_id=$ENV{'form.persistent_db_id'}" |
| |
>Revise search request</a> |
| |
$closebutton |
| |
<hr /> |
| |
<h3>Unactionable search query.</h3> |
| |
<p> |
| |
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. |
| |
</p> |
| |
</body> |
| |
</html> |
| |
RESULTS |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &output_date_error() |
| |
|
| |
Output a full html page with an error message. |
| |
|
| |
Inputs: |
| |
|
| |
$r, the request pointer. |
| |
$message, the error message for the user. |
| |
$closebutton, the specialized close button needed for groupsearch. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub output_date_error { |
| |
my ($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' |
<input type='button' value='Revise search request' |
| onClick='this.form.submit();'> |
onClick='this.form.submit();' /> |
| $closebutton |
$closebutton |
| <hr> |
<hr /> |
| <h3>Helpful Message</h3> |
<h3>Error</h3> |
| <p> |
<p> |
| $message |
$message |
| </p> |
</p> |
|
Line 1135 $message
|
Line 3130 $message
|
| RESULTS |
RESULTS |
| } |
} |
| |
|
| sub make_persistent { |
###################################################################### |
| my $persistent=''; |
###################################################################### |
| |
|
| map { |
=pod |
| if (/^form\./ && !/submit/) { |
|
| my $name=$_; |
=item &start_fresh_session() |
| my $key=$name; |
|
| $ENV{$key}=~s/\'//g; # do not mess with html field syntax |
Cleans the global %groupsearch_db by removing all fields which begin with |
| $name=~s/^form\.//; |
'pre_' or 'store'. |
| $persistent.=<<END; |
|
| <input type='hidden' name='$name' value='$ENV{$key}' /> |
=cut |
| END |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub start_fresh_session { |
| |
delete $groupsearch_db{'mode_catalog'}; |
| |
foreach (keys %groupsearch_db) { |
| |
if ($_ =~ /^pre_/) { |
| |
delete $groupsearch_db{$_}; |
| } |
} |
| } (keys %ENV); |
if ($_ =~ /^store/) { |
| return $persistent; |
delete $groupsearch_db{$_}; |
| |
} |
| |
} |
| } |
} |
| |
|
| 1; |
1; |
| |
|
| |
sub cleanup { |
| |
if (tied(%groupsearch_db)) { |
| |
unless (untie(%groupsearch_db)) { |
| |
&Apache::lonnet::logthis('Failed cleanup searchcat: groupsearch_db'); |
| |
} |
| |
} |
| |
&untiehash(); |
| |
&Apache::lonmysql::disconnect_from_db(); |
| |
} |
| |
|
| __END__ |
__END__ |
| |
|
| |
=pod |
| |
|
| |
=back |
| |
|
| |
=cut |
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