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version 1.45, 2001/03/21 00:32:33
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version 1.130, 2002/06/26 16:04:13
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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 |
|
| # |
# |
| # 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, |
# YEAR=2001 |
| # server reference, |
# 3/8, 3/12, 3/13, 3/14, 3/15, 3/19 Scott Harrison |
| # environment reference, |
# 3/20, 3/21, 3/22, 3/26, 3/27, 4/2, 8/15, 8/24, 8/25 Scott Harrison |
| # reply list reference) : outputs results from search |
# 10/12,10/14,10/15,10/16,11/28,11/29,12/10,12/12,12/16 Scott Harrison |
| # build_SQL_query(field name, logic) : builds a SQL query string from a |
# YEAR=2002 |
| # logical expression with AND/OR keywords |
# 1/17 Scott Harrison |
| # recursive_SQL_query_build(field name, reverse notation expression) : |
# 6/17 Matthew Hall |
| # builds a SQL query string from a reverse notation expression |
# |
| # logical expression with AND/OR keywords |
############################################################################### |
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############################################################################### |
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=pod |
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=head1 NAME |
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lonsearchcat |
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=head1 SYNOPSIS |
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Search interface to LON-CAPAs digital library |
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=head1 DESCRIPTION |
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This module enables searching for a distributed browseable catalog. |
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This is part of the LearningOnline Network with CAPA project |
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described at http://www.lon-capa.org. |
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lonsearchcat presents the user with an interface to search the LON-CAPA |
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digital library. lonsearchcat also initiates the execution of a search |
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by sending the search parameters to LON-CAPA servers. The progress of |
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search (on a server basis) is displayed to the user in a seperate window. |
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=head1 Internals |
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=over 4 |
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=cut |
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############################################################################### |
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############################################################################### |
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############################################################################### |
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## ## |
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## ORGANIZATION OF THIS PERL MODULE ## |
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## ## |
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## 1. Modules used by this module ## |
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## 2. Variables used throughout the module ## |
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## 3. handler subroutine called via Apache and mod_perl ## |
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## 4. Other subroutines ## |
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## ## |
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############################################################################### |
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|
| package Apache::lonsearchcat; |
package Apache::lonsearchcat; |
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# ------------------------------------------------- modules used by this module |
| use strict; |
use strict; |
| use Apache::Constants qw(:common); |
use Apache::Constants qw(:common); |
| 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; |
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use GDBM_File; |
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use Apache::loncommon(); |
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# ---------------------------------------- variables used throughout the module |
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###################################################################### |
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###################################################################### |
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=pod |
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=item Global variables |
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=over 4 |
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=item $closebutton |
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button that closes the search window |
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=item $importbutton |
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button to take the selecte results and go to group sorting |
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=item %hash |
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The ubiquitous database hash |
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=item $diropendb |
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The full path to the (temporary) search database file. This is set and |
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used in &handler() and is also used in &output_results(). |
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=back |
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=cut |
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###################################################################### |
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###################################################################### |
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# -- dynamically rendered interface components |
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my $closebutton; # button that closes the search window |
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my $importbutton; # button to take the selected results and go to group sorting |
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|
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# -- miscellaneous variables |
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my %hash; # database hash |
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my $diropendb = ""; # db file |
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###################################################################### |
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###################################################################### |
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| my %language; |
=pod |
| my $scrout; |
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| my %metadatafields; |
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| my %cprtag; |
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| my %mimetag; |
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=item &handler() - main handler invoked by httpd child |
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=item Variables |
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=over 4 |
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=item $hidden |
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holds 'hidden' html forms |
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=item $scrout |
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string that holds portions of the screen output |
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=back |
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=cut |
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###################################################################### |
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###################################################################### |
| sub handler { |
sub handler { |
| my $r = shift; |
my $r = shift; |
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untie %hash; |
| # -------------------------------------- see if called from an interactive mode |
|
| map { |
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| my ($name, $value) = split(/=/,$_); |
|
| $value =~ tr/+/ /; |
|
| $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
|
| if ($name eq 'catalogmode') { |
|
| $ENV{'form.'.$name}=$value; |
|
| } |
|
| } (split(/&/,$ENV{'QUERY_STRING'})); |
|
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|
| $r->content_type('text/html'); |
$r->content_type('text/html'); |
| $r->send_http_header; |
$r->send_http_header; |
| return OK if $r->header_only; |
return OK if $r->header_only; |
| |
|
| %metadatafields=(); |
my $domain = $r->dir_config('lonDefDomain'); |
| |
$diropendb= "/home/httpd/perl/tmp/".&Apache::lonnet::escape($domain). |
| my $hidden=''; |
"\_".&Apache::lonnet::escape($ENV{'user.name'})."_searchcat.db"; |
| $hidden=<<END if $ENV{'form.catalogmode'} eq 'interactive'; |
|
| <input type='hidden' name='catalogmode' value='interactive'> |
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, |
| END |
['catalogmode','launch','acts','mode','form','element', |
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'reqinterface']); |
| # ------------------------------------------------ First, check out environment |
## |
| $metadatafields{'owner'}=$ENV{'user.name'}.'@'.$ENV{'user.domain'}; |
## Clear out old values from database |
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## |
| # --------------------------------- Compute various listings of metadata values |
if ($ENV{'form.launch'} eq '1') { |
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if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT,0640)) { |
| %language=(); |
&start_fresh_session(); |
| $language{'any'}='Any language'; |
untie %hash; |
| { |
} else { |
| my $fh=Apache::File->new($r->dir_config('lonTabDir').'/language.tab'); |
$r->print('<html><head></head><body>Unable to tie hash to db '. |
| map { |
'file</body></html>'); |
| $_=~/(\w+)\s+([\w\s\-]+)/; |
return OK; |
| $language{$1}=$2; |
} |
| } <$fh>; |
|
| } |
|
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|
| %cprtag=(); |
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| $cprtag{'any'}='Any copyright/distribution'; |
|
| { |
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| my $fh=Apache::File->new($r->dir_config('lonIncludes').'/copyright.tab'); |
|
| map { |
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| $_=~/(\w+)\s+([\w\s\-]+)/; |
|
| $cprtag{$1}=$2; |
|
| } <$fh>; |
|
| } |
|
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|
| %mimetag=(); |
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| $mimetag{'any'}='Any type'; |
|
| { |
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| my $fh=Apache::File->new($r->dir_config('lonTabDir').'/filetypes.tab'); |
|
| map { |
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| $_=~/(\w+)\s+(\w+)\s+([\w\s\-]+)/; |
|
| $mimetag{$1}=".$1 $3"; |
|
| } <$fh>; |
|
| } |
} |
| |
## |
| if ($ENV{'form.basicsubmit'} eq 'SEARCH') { |
## Produce some output, so people know it is working |
| return &basicsearch($r,\%ENV); |
## |
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$r->print("\n"); |
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$r->rflush; |
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## |
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## Configure dynamic components of interface |
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## |
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my $hidden; # Holds 'hidden' html forms |
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if ($ENV{'form.catalogmode'} eq 'interactive') { |
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$hidden="<input type='hidden' name='catalogmode' value='interactive'>". |
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"\n"; |
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$closebutton="<input type='button' name='close' value='CLOSE' ". |
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"onClick='self.close()'>"."\n"; |
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} elsif ($ENV{'form.catalogmode'} eq 'groupsearch') { |
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$hidden=<<END; |
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<input type='hidden' name='catalogmode' value='groupsearch'> |
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END |
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$closebutton=<<END; |
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<input type='button' name='close' value='CLOSE' onClick='self.close()'> |
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END |
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$importbutton=<<END; |
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<input type='button' name='import' value='IMPORT' |
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onClick='javascript:select_group()'> |
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END |
| } |
} |
| elsif ($ENV{'form.advancedsubmit'} eq 'SEARCH') { |
$hidden .= <<END; |
| return &advancedsearch($r,\%ENV); |
<input type='hidden' name='mode' value='$ENV{'form.mode'}'> |
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<input type='hidden' name='form' value='$ENV{'form.form'}'> |
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<input type='hidden' name='element' value='$ENV{'form.element'}'> |
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<input type='hidden' name='date' value='2'> |
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END |
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## |
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## What are we doing? |
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## |
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if ($ENV{'form.basicsubmit'} eq 'SEARCH') { |
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# Perform basic search and give results |
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return &basicsearch($r,$hidden); |
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} elsif ($ENV{'form.advancedsubmit'} eq 'SEARCH') { |
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# Perform advanced search and give results |
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return &advancedsearch($r,$hidden); |
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} elsif ($ENV{'form.reqinterface'} eq 'advanced') { |
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# Output the advanced interface |
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$r->print(&advanced_search_form($closebutton,$hidden)); |
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return OK; |
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} else { |
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# Output normal search interface |
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$r->print(&basic_search_form($closebutton,$hidden)); |
| } |
} |
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return OK; |
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} |
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|
| $scrout=''; # building a part of screen output |
###################################################################### |
| $scrout.=&searchphrasefield('Limit by title','title', |
###################################################################### |
| $ENV{'form.title'}); |
|
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|
| $scrout.=&searchphrasefield('Limit by author','author', |
=pod |
| $ENV{'form.author'}); |
|
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| $scrout.=&searchphrasefield('Limit by subject','subject', |
=item &basic_search_form() |
| $ENV{'form.subject'}); |
|
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|
| $scrout.=&searchphrasefield('Limit by keywords','keywords', |
Returns a scalar which holds html for the basic search form. |
| $ENV{'form.keywords'}); |
|
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|
| $scrout.=&searchphrasefield('Limit by URL','url', |
=cut |
| $ENV{'form.url'}); |
|
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| $scrout.=&searchphrasefield('Limit by version','version', |
###################################################################### |
| $ENV{'form.version'}); |
###################################################################### |
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|
| $scrout.=&searchphrasefield('Limit by notes','notes', |
sub basic_search_form{ |
| $ENV{'form.notes'}); |
my ($closebutton,$hidden) = @_; |
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my $scrout=<<"ENDDOCUMENT"; |
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<html> |
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<head> |
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<title>The LearningOnline Network with CAPA</title> |
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<script type="text/javascript"> |
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function openhelp(val) { |
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openhelpwin=open('/adm/help/searchcat.html','helpscreen', |
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'scrollbars=1,width=600,height=300'); |
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openhelpwin.focus(); |
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} |
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</script> |
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</head> |
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<body bgcolor="#FFFFFF"> |
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<img align='right' src='/adm/lonIcons/lonlogos.gif' /> |
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<h1>Search Catalog</h1> |
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<form method="post" action="/adm/searchcat"> |
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$hidden |
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<h3>Basic Search</h3> |
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<p> |
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Enter terms or quoted phrases separated by AND, OR, or NOT |
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then press SEARCH below. |
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</p> |
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<p> |
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<table> |
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<tr><td> |
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ENDDOCUMENT |
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$scrout.=' '.&simpletextfield('basicexp',$ENV{'form.basicexp'},40). |
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' '; |
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# $scrout.=&simplecheckbox('allversions',$ENV{'form.allversions'}); |
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# $scrout.='<font color="#800000">Search historic archives</font>'; |
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$scrout.=<<ENDDOCUMENT; |
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</td><td><a href="/adm/searchcat?reqinterface=advanced">Advanced Search</a></td></tr></table> |
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</p> |
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<p> |
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<input type="submit" name="basicsubmit" value='SEARCH' /> |
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$closebutton |
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<!-- view selection --> |
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<select name="viewselect"> |
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<option value="Detailed Citation View" selected="true" >Detailed Citation View</option> |
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<option value="Summary View" >Summary View</option> |
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<option value="Fielded Format">Fielded Format</option> |
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<option value="XML/SGML" >XML/SGML</option> |
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</select> |
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<!-- end of view selection --> |
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<input type="button" value="HELP" onClick="openhelp()" /> |
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</p> |
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</form> |
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</body> |
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</html> |
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ENDDOCUMENT |
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return $scrout; |
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} |
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###################################################################### |
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###################################################################### |
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|
| $scrout.=&searchphrasefield('Limit by abstract','abstract', |
=pod |
| $ENV{'form.abstract'}); |
|
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|
| $ENV{'form.mime'}='notxxx' unless length($ENV{'form.mime'}); |
=item &advanced_search_form() |
| $scrout.=&selectbox('Limit by MIME type','mime', |
|
| $ENV{'form.mime'},%mimetag); |
|
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|
| $ENV{'form.language'}='any' unless length($ENV{'form.language'}); |
Returns a scalar which holds html for the advanced search form. |
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|
| $scrout.=&selectbox('Limit by language','language', |
=cut |
| $ENV{'form.language'},%language); |
|
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###################################################################### |
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###################################################################### |
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|
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sub advanced_search_form{ |
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my ($closebutton,$hidden) = @_; |
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my $advanced_buttons = <<"END"; |
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<p> |
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<input type="submit" name="advancedsubmit" value='SEARCH' /> |
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<input type="reset" name="reset" value='RESET' /> |
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$closebutton |
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<input type="button" value="HELP" onClick="openhelp()" /> |
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</p> |
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END |
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my $scrout=<<"ENDHEADER"; |
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<html> |
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<head> |
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<title>The LearningOnline Network with CAPA</title> |
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<script type="text/javascript"> |
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function openhelp(val) { |
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openhelpwin=open('/adm/help/searchcat.html','helpscreen', |
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'scrollbars=1,width=600,height=300'); |
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openhelpwin.focus(); |
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} |
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</script> |
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</head> |
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<body bgcolor="#FFFFFF"> |
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<img align='right' src='/adm/lonIcons/lonlogos.gif' /> |
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<h1>Advanced Catalog Search</h1> |
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<hr /> |
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Enter terms or quoted phrases separated by search operators |
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such as AND, OR, or NOT.<br /> |
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<form method="post" action="/adm/searchcat"> |
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$advanced_buttons |
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$hidden |
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<table> |
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<tr><td><font color="#800000" face="helvetica"><b>VIEW:</b></font></td> |
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<td> |
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<!-- view selection --> |
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<select name="viewselect" size ="1"> |
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<option value="Detailed Citation View" selected="true">Detailed Citation View</option> |
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<option value="Summary View">Summary View</option> |
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<option value="Fielded Format">Fielded Format</option> |
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<option value="XML/SGML">XML/SGML</option> |
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</select> |
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<!-- end of view selection --> |
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</td></tr> |
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ENDHEADER |
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$scrout.=&searchphrasefield('title','title', |
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$ENV{'form.title'}); |
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$scrout.=&searchphrasefield('author','author', |
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$ENV{'form.author'}); |
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$scrout.=&searchphrasefield('subject','subject', |
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$ENV{'form.subject'}); |
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$scrout.=&searchphrasefield('keywords','keywords', |
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$ENV{'form.keywords'}); |
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$scrout.=&searchphrasefield('URL','url', |
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$ENV{'form.url'}); |
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# $scrout.=&searchphrasefield('Limit by version','version', |
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# $ENV{'form.version'}); |
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$scrout.=&searchphrasefield('notes','notes', |
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$ENV{'form.notes'}); |
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$scrout.=&searchphrasefield('abstract','abstract', |
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$ENV{'form.abstract'}); |
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# Hack - an empty table row. |
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$scrout.="<tr><td> </td><td> </td></tr>\n"; |
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$scrout.=&searchphrasefield('file<br />extension','mime', |
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$ENV{'form.mime'}); |
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$scrout.="<tr><td> </td><td> </td></tr>\n"; |
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$scrout.=&searchphrasefield('publisher<br />owner','owner', |
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$ENV{'form.owner'}); |
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$scrout.="</table>\n"; |
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# $ENV{'form.mime'}='any' unless length($ENV{'form.mime'}); |
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# $scrout.=&selectbox('Limit by MIME type','mime', |
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# $ENV{'form.mime'}, |
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# 'any','Any type', |
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# \&{Apache::loncommon::filedescriptionex}, |
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# (&Apache::loncommon::fileextensions)); |
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$ENV{'form.language'}='any' unless length($ENV{'form.language'}); |
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$scrout.=&selectbox('Limit by language','language', |
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$ENV{'form.language'},'any','Any Language', |
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\&{Apache::loncommon::languagedescription}, |
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(&Apache::loncommon::languageids), |
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); |
| # ------------------------------------------------ Compute date selection boxes |
# ------------------------------------------------ Compute date selection boxes |
| $scrout.=<<CREATIONDATESTART; |
$scrout.=<<CREATIONDATESTART; |
| <p> |
<p> |
| <font color="#800000" face="helvetica"><b>LIMIT BY CREATION DATE RANGE:</b> |
<font color="#800000" face="helvetica"><b>LIMIT BY CREATION DATE RANGE:</b> |
| </font> |
</font> |
| <br> |
<br /> |
| between: |
between: |
| CREATIONDATESTART |
CREATIONDATESTART |
| $scrout.=&dateboxes('creationdatestart',1,1,1976, |
$scrout.=&dateboxes('creationdatestart',1,1,1976, |
|
Line 166 CREATIONDATESTART
|
Line 413 CREATIONDATESTART
|
| $ENV{'form.creationdatestart_day'}, |
$ENV{'form.creationdatestart_day'}, |
| $ENV{'form.creationdatestart_year'}, |
$ENV{'form.creationdatestart_year'}, |
| ); |
); |
| $scrout.=<<CREATIONDATEEND; |
$scrout.="and:\n"; |
| and: |
|
| CREATIONDATEEND |
|
| $scrout.=&dateboxes('creationdateend',12,31,2051, |
$scrout.=&dateboxes('creationdateend',12,31,2051, |
| $ENV{'form.creationdateend_month'}, |
$ENV{'form.creationdateend_month'}, |
| $ENV{'form.creationdateend_day'}, |
$ENV{'form.creationdateend_day'}, |
| $ENV{'form.creationdateend_year'}, |
$ENV{'form.creationdateend_year'}, |
| ); |
); |
| $scrout.="</p>"; |
$scrout.="</p>"; |
| |
|
| $scrout.=<<LASTREVISIONDATESTART; |
$scrout.=<<LASTREVISIONDATESTART; |
| <p> |
<p> |
| <font color="#800000" face="helvetica"><b>LIMIT BY LAST REVISION DATE RANGE: |
<font color="#800000" face="helvetica"><b>LIMIT BY LAST REVISION DATE RANGE: |
| </b></font> |
</b></font> |
| <br>between: |
<br />between: |
| LASTREVISIONDATESTART |
LASTREVISIONDATESTART |
| $scrout.=&dateboxes('lastrevisiondatestart',1,1,1976, |
$scrout.=&dateboxes('lastrevisiondatestart',1,1,1976, |
| $ENV{'form.lastrevisiondatestart_month'}, |
$ENV{'form.lastrevisiondatestart_month'}, |
|
Line 196 LASTREVISIONDATEEND
|
Line 440 LASTREVISIONDATEEND
|
| $ENV{'form.lastrevisiondateend_year'}, |
$ENV{'form.lastrevisiondateend_year'}, |
| ); |
); |
| $scrout.='</p>'; |
$scrout.='</p>'; |
| |
|
| $scrout.=&searchphrasefield('Limit by publisher/owner','owner', |
|
| $ENV{'form.owner'}); |
|
| # $metadatafields{'owner'}); |
|
| |
|
| $ENV{'form.copyright'}='any' unless length($ENV{'form.copyright'}); |
$ENV{'form.copyright'}='any' unless length($ENV{'form.copyright'}); |
| $scrout.=&selectbox('Limit by copyright/distribution','copyright', |
$scrout.=&selectbox('Limit by copyright/distribution','copyright', |
| $ENV{'form.copyright'},%cprtag); |
$ENV{'form.copyright'}, |
| |
'any','Any copyright/distribution', |
| |
\&{Apache::loncommon::copyrightdescription}, |
| |
(&Apache::loncommon::copyrightids), |
| |
); |
| # ------------------------------------------- Compute customized metadata field |
# ------------------------------------------- Compute customized metadata field |
| $scrout.=<<CUSTOMMETADATA; |
$scrout.=<<CUSTOMMETADATA; |
| <p> |
<p> |
| <font color="#800000" face="helvetica"><b>LIMIT BY OTHER METADATA FIELDS:</b> |
<font color="#800000" face="helvetica"><b>LIMIT BY SPECIAL METADATA FIELDS:</b> |
| </font> |
</font> |
| For author-specific metadata, enter in an expression in the form of |
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> |
<i>key</i>=<i>value</i> separated by operators such as AND, OR or NOT.<br /> |
| <b>Example:</b> grandmother=75 OR grandfather=85 |
<b>Example:</b> grandmother=75 OR grandfather=85 |
| <br> |
<br /> |
| CUSTOMMETADATA |
CUSTOMMETADATA |
| $scrout.=&simpletextfield('custommetadata',$ENV{'form.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; |
| |
|
| # ---------------------------------------------------------------- Print screen |
|
| $r->print(<<ENDDOCUMENT); |
|
| <html> |
|
| <head> |
|
| <title>The LearningOnline Network with CAPA</title> |
|
| </head> |
|
| <body bgcolor="#FFFFFF"> |
|
| <img align=right src=/adm/lonIcons/lonlogos.gif> |
|
| <h1>Search Catalog</h1> |
|
| <form method="post" action="/adm/searchcat"> |
|
| $hidden |
|
| <hr> |
|
| <h3>Basic Search</h3> |
|
| <p> |
<p> |
| Enter terms or phrases separated by search operators |
<font color="#800000" face="helvetica"><b>SHOW SPECIAL METADATA FIELDS:</b> |
| such as AND or OR then press SEARCH below. Terms should be specific |
</font> |
| to the title, author, subject, notes, or abstract information associated |
Enter in a space-separated list of special metadata fields to show |
| with a resource. |
in a fielded listing for each record result. |
| <br> |
<br /> |
| ENDDOCUMENT |
CUSTOMSHOW |
| $r->print(&simpletextfield('basicexp',$ENV{'form.basicexp'})); |
$scrout.=&simpletextfield('customshow',$ENV{'form.customshow'}); |
| $r->print(' '); |
$scrout.=<<ENDDOCUMENT; |
| $r->print(&simplecheckbox('titleonly',$ENV{'form.titleonly'})); |
$advanced_buttons |
| $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"> |
|
| <input type="button" name="close" value="CLOSE" onClick="self.close()"> |
|
| </p> |
|
| <hr> |
|
| <h3>Advanced Search</h3> |
|
| $scrout |
|
| <p> |
|
| <input type="submit" name="advancedsubmit" value="SEARCH"> |
|
| <input type="reset" name="reset" value="RESET"> |
|
| <input type="button" name="close" value="CLOSE" onClick="self.close()"> |
|
| </p> |
|
| </form> |
</form> |
| </body> |
</body> |
| </html> |
</html> |
| ENDDOCUMENT |
ENDDOCUMENT |
| return OK; |
return $scrout; |
| } |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &make_persistent() |
| |
|
| |
Returns a scalar which holds the current ENV{'form.*'} values in |
| |
a 'hidden' html input tag. This allows search interface information |
| |
to be somewhat persistent. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
sub make_persistent { |
| |
my $persistent=''; |
| |
foreach (keys %ENV) { |
| |
if (/^form\./ && !/submit/) { |
| |
my $name=$_; |
| |
my $key=$name; |
| |
$ENV{$key}=~s/\'//g; # do not mess with html field syntax |
| |
$name=~s/^form\.//; |
| |
$persistent.=<<END; |
| |
<input type="hidden" name="$name" value="$ENV{$key}" /> |
| |
END |
| |
} |
| |
} |
| |
return $persistent; |
| |
} |
| |
|
| # --------------------------------------------------------- Various form fields |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item HTML form building functions |
| |
|
| |
=over 4 |
| |
|
| |
=item &simpletextfield() |
| |
|
| |
Inputs: $name,$value,$size |
| |
|
| |
Returns a text input field with the given name, value, and size. |
| |
If size is not specified, a value of 20 is used. |
| |
|
| |
=item &simplecheckbox() |
| |
|
| |
Inputs: $name,$value |
| |
|
| |
Returns a simple check box with the given $name. |
| |
If $value eq 'on' the box is checked. |
| |
|
| |
=item &searchphrasefield() |
| |
|
| |
Inputs: $title,$name,$value |
| |
|
| |
Returns html for a title line and an input field for entering search terms. |
| |
the instructions "Enter terms or phrases separated by search operators such |
| |
as AND, OR, or NOT." are given following the title. The entry field (which |
| |
is where the $name and $value are used) is an 80 column simpletextfield. |
| |
|
| |
=item &dateboxes() |
| |
|
| |
Returns html selection form elements for the specification of |
| |
the day, month, and year. |
| |
|
| |
=item &selectbox() |
| |
|
| |
Returns a scalar containing an html <select> form. |
| |
|
| |
Inputs: |
| |
|
| |
=over 4 |
| |
|
| |
=item $title |
| |
|
| |
Printed above the select box, in uppercase. |
| |
|
| |
=item $name |
| |
|
| |
The name element of the <select> tag. |
| |
|
| |
=item $default |
| |
|
| |
The default value of the form. Can be $anyvalue or in @idlist. |
| |
|
| |
=item $anyvalue |
| |
|
| |
The <option value="..."> used to indicate a default of |
| |
none of the values. |
| |
|
| |
=item $anytag |
| |
|
| |
The text associate with $anyvalue above. |
| |
|
| |
=item $functionref |
| |
|
| |
Each element in @idlist will be passed as a parameter |
| |
to the function referenced here. The return value of the function should |
| |
be a scalar description of the items. If this value is undefined the |
| |
description of each item in @idlist will be the item name. |
| |
|
| |
=item @idlist |
| |
|
| |
The items to be selected from. One of these or $anyvalue will be the |
| |
value returned by the form element, $ENV{form.$name}. |
| |
|
| |
=back |
| |
|
| |
=back |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| sub simpletextfield { |
sub simpletextfield { |
| my ($name,$value)=@_; |
my ($name,$value,$size)=@_; |
| return '<input type=text name="'.$name.'" size=20 value="'.$value.'">'; |
$size = 20 if (! defined($size)); |
| |
return '<input type="text" name="'.$name. |
| |
'" size="'.$size.'" value="'.$value.'" />'; |
| } |
} |
| |
|
| sub simplecheckbox { |
sub simplecheckbox { |
| my ($name,$value)=@_; |
my ($name,$value)=@_; |
| my $checked=''; |
my $checked=''; |
| $checked="CHECKED" if $value eq 'on'; |
$checked="checked" if $value eq 'on'; |
| return '<input type=checkbox name="'.$name.'" '. $checked . '>'; |
return '<input type="checkbox" name="'.$name.'" '. $checked . ' />'; |
| } |
} |
| |
|
| sub searchphrasefield { |
sub searchphrasefield { |
| my ($title,$name,$value)=@_; |
my ($title,$name,$value)=@_; |
| my $instruction=<<END; |
|
| Enter terms or phrases separated by search operators such |
|
| as AND or OR. |
|
| END |
|
| my $uctitle=uc($title); |
my $uctitle=uc($title); |
| return "\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:</b>". |
return '<tr><td><font color="#800000" face="helvetica">'. |
| "</FONT> $instruction<br>". |
'<b>'.$uctitle.': </b></font></td><td>'. |
| '<input type=text name="'.$name.'" size=80 value="'.$value.'">'; |
&simpletextfield($name,$value,50)."</td></tr>\n"; |
| } |
} |
| |
|
| sub dateboxes { |
sub dateboxes { |
| my ($name,$defaultmonth,$defaultday,$defaultyear, |
my ($name,$defaultmonth,$defaultday,$defaultyear, |
| $currentmonth,$currentday,$currentyear)=@_; |
$currentmonth,$currentday,$currentyear)=@_; |
| ($defaultmonth,$defaultday,$defaultyear)=('','',''); |
($defaultmonth,$defaultday,$defaultyear)=('','',''); |
| my $month=<<END; |
# |
| <select name="${name}_month"> |
# Day |
| <option value='$defaultmonth'> </option> |
|
| <option value="1">January</option> |
|
| <option value="2">February</option> |
|
| <option value="3">March</option> |
|
| <option value="4">April</option> |
|
| <option value="5">May</option> |
|
| <option value="6">June</option> |
|
| <option value="7">July</option> |
|
| <option value="8">August</option> |
|
| <option value="9">September</option> |
|
| <option value="10">October</option> |
|
| <option value="11">November</option> |
|
| <option value="12">December</option> |
|
| </select> |
|
| END |
|
| $month=~s/(\"$currentmonth\")/$1 SELECTED/ if length($currentmonth); |
|
| my $day=<<END; |
my $day=<<END; |
| <select name="${name}_day"> |
<select name="${name}_day"> |
| <option value='$defaultday'> </option> |
<option value='$defaultday'> </option> |
| <option value="1">1</option> |
|
| <option value="2">2</option> |
|
| <option value="3">3</option> |
|
| <option value="4">4</option> |
|
| <option value="5">5</option> |
|
| <option value="6">6</option> |
|
| <option value="7">7</option> |
|
| <option value="8">8</option> |
|
| <option value="9">9</option> |
|
| <option value="10">10</option> |
|
| <option value="11">11</option> |
|
| <option value="12">12</option> |
|
| <option value="13">13</option> |
|
| <option value="14">14</option> |
|
| <option value="15">15</option> |
|
| <option value="16">16</option> |
|
| <option value="17">17</option> |
|
| <option value="18">18</option> |
|
| <option value="19">19</option> |
|
| <option value="20">20</option> |
|
| <option value="21">21</option> |
|
| <option value="22">22</option> |
|
| <option value="23">23</option> |
|
| <option value="24">24</option> |
|
| <option value="25">25</option> |
|
| <option value="26">26</option> |
|
| <option value="27">27</option> |
|
| <option value="28">28</option> |
|
| <option value="29">29</option> |
|
| <option value="30">30</option> |
|
| <option value="31">31</option> |
|
| </select> |
|
| END |
END |
| |
for (my $i = 1; $i<=31; $i++) { |
| |
$day.="<option value=\"$i\">$i</option>\n"; |
| |
} |
| |
$day.="</select>\n"; |
| $day=~s/(\"$currentday\")/$1 SELECTED/ if length($currentday); |
$day=~s/(\"$currentday\")/$1 SELECTED/ if length($currentday); |
| |
# |
| |
# Month |
| |
my $month=<<END; |
| |
<select name="${name}_month"> |
| |
<option value='$defaultmonth'> </option> |
| |
END |
| |
my $i = 1; |
| |
foreach (qw/January February March April May June |
| |
July August September October November December /){ |
| |
$month .="<option value=\"$i\">$_</option>\n"; |
| |
$i++; |
| |
} |
| |
$month.="</select>\n"; |
| |
$month=~s/(\"$currentmonth\")/$1 SELECTED/ if length($currentmonth); |
| |
# |
| |
# Year (obviously) |
| my $year=<<END; |
my $year=<<END; |
| <select name="${name}_year"> |
<select name="${name}_year"> |
| <option value='$defaultyear'> </option> |
<option value='$defaultyear'> </option> |
| <option value="1976">1976</option> |
|
| <option value="1977">1977</option> |
|
| <option value="1978">1978</option> |
|
| <option value="1979">1979</option> |
|
| <option value="1980">1980</option> |
|
| <option value="1981">1981</option> |
|
| <option value="1982">1982</option> |
|
| <option value="1983">1983</option> |
|
| <option value="1984">1984</option> |
|
| <option value="1985">1985</option> |
|
| <option value="1986">1986</option> |
|
| <option value="1987">1987</option> |
|
| <option value="1988">1988</option> |
|
| <option value="1989">1989</option> |
|
| <option value="1990">1990</option> |
|
| <option value="1991">1991</option> |
|
| <option value="1992">1992</option> |
|
| <option value="1993">1993</option> |
|
| <option value="1994">1994</option> |
|
| <option value="1995">1995</option> |
|
| <option value="1996">1996</option> |
|
| <option value="1997">1997</option> |
|
| <option value="1998">1998</option> |
|
| <option value="1999">1999</option> |
|
| <option value="2000">2000</option> |
|
| <option value="2001">2001</option> |
|
| <option value="2002">2002</option> |
|
| <option value="2003">2003</option> |
|
| <option value="2004">2004</option> |
|
| <option value="2005">2005</option> |
|
| <option value="2006">2006</option> |
|
| <option value="2007">2007</option> |
|
| <option value="2008">2008</option> |
|
| <option value="2009">2009</option> |
|
| <option value="2010">2010</option> |
|
| <option value="2011">2011</option> |
|
| <option value="2012">2012</option> |
|
| <option value="2013">2013</option> |
|
| <option value="2014">2014</option> |
|
| <option value="2015">2015</option> |
|
| <option value="2016">2016</option> |
|
| <option value="2017">2017</option> |
|
| <option value="2018">2018</option> |
|
| <option value="2019">2019</option> |
|
| <option value="2020">2020</option> |
|
| <option value="2021">2021</option> |
|
| <option value="2022">2022</option> |
|
| <option value="2023">2023</option> |
|
| <option value="2024">2024</option> |
|
| <option value="2025">2025</option> |
|
| <option value="2026">2026</option> |
|
| <option value="2027">2027</option> |
|
| <option value="2028">2028</option> |
|
| <option value="2029">2029</option> |
|
| <option value="2030">2030</option> |
|
| <option value="2031">2031</option> |
|
| <option value="2032">2032</option> |
|
| <option value="2033">2033</option> |
|
| <option value="2034">2034</option> |
|
| <option value="2035">2035</option> |
|
| <option value="2036">2036</option> |
|
| <option value="2037">2037</option> |
|
| <option value="2038">2038</option> |
|
| <option value="2039">2039</option> |
|
| <option value="2040">2040</option> |
|
| <option value="2041">2041</option> |
|
| <option value="2042">2042</option> |
|
| <option value="2043">2043</option> |
|
| <option value="2044">2044</option> |
|
| <option value="2045">2045</option> |
|
| <option value="2046">2046</option> |
|
| <option value="2047">2047</option> |
|
| <option value="2048">2048</option> |
|
| <option value="2049">2049</option> |
|
| <option value="2050">2050</option> |
|
| <option value="2051">2051</option> |
|
| </select> |
|
| END |
END |
| |
my $maxyear = 2051; |
| |
for (my $i = 1976; $i<=$maxyear; $i++) { |
| |
$year.="<option value=\"$i\">$i</option>\n"; |
| |
} |
| |
$year.="</select>\n"; |
| $year=~s/(\"$currentyear\")/$1 SELECTED/ if length($currentyear); |
$year=~s/(\"$currentyear\")/$1 SELECTED/ if length($currentyear); |
| return "$month$day$year"; |
return "$month$day$year"; |
| } |
} |
| |
|
| sub selectbox { |
sub selectbox { |
| my ($title,$name,$value,%options)=@_; |
my ($title,$name,$default,$anyvalue,$anytag,$functionref,@idlist)=@_; |
| |
if (! defined($functionref)) { $functionref = sub { $_[0]}; } |
| my $uctitle=uc($title); |
my $uctitle=uc($title); |
| my $selout="\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:". |
my $selout="\n".'<p><font color="#800000" face="helvetica">'. |
| "</b></font><br>".'<select name="'.$name.'">'; |
'<b>'.$uctitle.':</b></font><br /><select name="'.$name.'">'; |
| map { |
foreach ($anyvalue,@idlist) { |
| $selout.='<option value="'.$_.'"'; |
$selout.='<option value="'.$_.'"'; |
| if ($_ eq $value) { $selout.=' selected'; } |
if ($_ eq $default and !/^any$/) { |
| $selout.='>'.$options{$_}.'</option>'; |
$selout.=' selected >'.&{$functionref}($_).'</option>'; |
| } sort keys %options; |
} |
| return $selout.'</select>'; |
elsif ($_ eq $default and /^$anyvalue$/) { |
| |
$selout.=' selected >'.$anytag.'</option>'; |
| |
} |
| |
else {$selout.='>'.&{$functionref}($_).'</option>';} |
| |
} |
| |
return $selout.'</select></p>'; |
| } |
} |
| |
|
| # ----------------------------------------------- Performing an advanced search |
###################################################################### |
| sub advancedsearch { |
###################################################################### |
| my ($r,$envhash)=@_; |
|
| my %ENV=%{$envhash}; |
=pod |
| |
|
| |
=item &advancedsearch() |
| |
|
| |
Parse advanced search results. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub advancedsearch { |
| |
my ($r,$hidden)=@_; |
| my $fillflag=0; |
my $fillflag=0; |
| |
# Clean up fields for safety |
| |
for my $field ('title','author','subject','keywords','url','version', |
| |
'creationdatestart_month','creationdatestart_day', |
| |
'creationdatestart_year','creationdateend_month', |
| |
'creationdateend_day','creationdateend_year', |
| |
'lastrevisiondatestart_month','lastrevisiondatestart_day', |
| |
'lastrevisiondatestart_year','lastrevisiondateend_month', |
| |
'lastrevisiondateend_day','lastrevisiondateend_year', |
| |
'notes','abstract','mime','language','owner', |
| |
'custommetadata','customshow') { |
| |
$ENV{"form.$field"}=~s/[^\w\/\s\(\)\=\-\"\']//g; |
| |
} |
| |
foreach ('mode','form','element') { |
| |
# is this required? Hmmm. |
| |
next unless (exists($ENV{"form.$_"})); |
| |
$ENV{"form.$_"}=&Apache::lonnet::unescape($ENV{"form.$_"}); |
| |
$ENV{"form.$_"}=~s/[^\w\/\s\(\)\=\-\"\']//g; |
| |
} |
| |
# Check to see if enough information was filled in |
| for my $field ('title','author','subject','keywords','url','version', |
for my $field ('title','author','subject','keywords','url','version', |
| 'notes','abstract','mime','language','owner', |
'notes','abstract','mime','language','owner', |
| 'custommetadata') { |
'custommetadata') { |
|
Line 461 sub advancedsearch {
|
Line 723 sub advancedsearch {
|
| $fillflag++; |
$fillflag++; |
| } |
} |
| } |
} |
| |
|
| unless ($fillflag) { |
unless ($fillflag) { |
| &output_blank_field_error($r); |
&output_blank_field_error($r); |
| return OK; |
return OK; |
| } |
} |
| |
# Turn the form input into a SQL-based query |
| my $query=''; |
my $query=''; |
| |
|
| my @queries; |
my @queries; |
| # Go through logical expression AND/OR/NOT phrase fields. |
# Evaluate logical expression AND/OR/NOT phrase fields. |
| foreach my $field ('title','author','subject','notes','abstract') { |
foreach my $field ('title','author','subject','notes','abstract','url', |
| |
'keywords','version','owner','mime') { |
| if ($ENV{'form.'.$field}) { |
if ($ENV{'form.'.$field}) { |
| push @queries,&build_SQL_query($field,$ENV{'form.'.$field}); |
push @queries,&build_SQL_query($field,$ENV{'form.'.$field}); |
| } |
} |
| } |
} |
| if (@queries) { |
# Evaluate option lists |
| $query="(" . (join(") and ("),@queries) . ")"; |
if ($ENV{'form.language'} and $ENV{'form.language'} ne 'any') { |
| $query="select * from metadata where $testquery"; |
push @queries,"(language like \"$ENV{'form.language'}\")"; |
| my $reply=&Apache::lonnet::metadata_query($query); |
|
| &output_results('Advanced',$r,$envhash,$query,$reply); |
|
| } |
} |
| else { |
# if ($ENV{'form.mime'} and $ENV{'form.mime'} ne 'any') { |
| &output_results('Advanced',$r,$envhash,$query); |
# push @queries,"(mime like \"$ENV{'form.mime'}\")"; |
| |
# } |
| |
if ($ENV{'form.copyright'} and $ENV{'form.copyright'} ne 'any') { |
| |
push @queries,"(copyright like \"$ENV{'form.copyright'}\")"; |
| } |
} |
| return OK; |
# Evaluate date windows |
| } |
my $datequery=&build_date_queries( |
| |
$ENV{'form.creationdatestart_month'}, |
| # ---------------------------------------------------- see if a field is filled |
$ENV{'form.creationdatestart_day'}, |
| sub filled { |
$ENV{'form.creationdatestart_year'}, |
| my ($field)=@_; |
$ENV{'form.creationdateend_month'}, |
| if ($field=~/\S/) { |
$ENV{'form.creationdateend_day'}, |
| return 1; |
$ENV{'form.creationdateend_year'}, |
| |
$ENV{'form.lastrevisiondatestart_month'}, |
| |
$ENV{'form.lastrevisiondatestart_day'}, |
| |
$ENV{'form.lastrevisiondatestart_year'}, |
| |
$ENV{'form.lastrevisiondateend_month'}, |
| |
$ENV{'form.lastrevisiondateend_day'}, |
| |
$ENV{'form.lastrevisiondateend_year'}, |
| |
); |
| |
# Test to see if date windows are legitimate |
| |
if ($datequery=~/^Incorrect/) { |
| |
&output_date_error($r,$datequery); |
| |
return OK; |
| } |
} |
| else { |
elsif ($datequery) { |
| return 0; |
push @queries,$datequery; |
| |
} |
| |
# Process form information for custom metadata querying |
| |
my $customquery=''; |
| |
if ($ENV{'form.custommetadata'}) { |
| |
$customquery=&build_custommetadata_query('custommetadata', |
| |
$ENV{'form.custommetadata'}); |
| |
} |
| |
my $customshow=''; |
| |
if ($ENV{'form.customshow'}) { |
| |
$customshow=$ENV{'form.customshow'}; |
| |
$customshow=~s/[^\w\s]//g; |
| |
my @fields=split(/\s+/,$customshow); |
| |
$customshow=join(" ",@fields); |
| |
} |
| |
# Send query statements over the network to be processed by either the SQL |
| |
# database or a recursive scheme of 'grep'-like actions (for custom |
| |
# metadata). |
| |
if (@queries) { |
| |
$query=join(" AND ",@queries); |
| |
$query="select * from metadata where $query"; |
| |
my $reply; # reply hash reference |
| |
unless ($customquery or $customshow) { |
| |
$reply=&Apache::lonnet::metadata_query($query); |
| |
} |
| |
else { |
| |
$reply=&Apache::lonnet::metadata_query($query, |
| |
$customquery,$customshow); |
| |
} |
| |
&output_results('Advanced',$r,$customquery,$reply,$hidden); |
| |
return OK; |
| |
} elsif ($customquery) { |
| |
my $reply; # reply hash reference |
| |
$reply=&Apache::lonnet::metadata_query('', |
| |
$customquery,$customshow); |
| |
&output_results('Advanced',$r,$customquery,$reply,$hidden); |
| |
return OK; |
| } |
} |
| |
# should not get to this point |
| |
return 'Error. Should not have gone to this point.'; |
| } |
} |
| |
|
| # --------------------------------------------------- Performing a basic search |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &basicsearch() |
| |
|
| |
Parse basic search form. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| sub basicsearch { |
sub basicsearch { |
| my ($r,$envhash)=@_; |
my ($r,$hidden)=@_; |
| my %ENV=%{$envhash}; |
# Clean up fields for safety |
| |
for my $field ('basicexp') { |
| |
$ENV{"form.$field"}=~s/[^\w\s\(\)\-]//g; |
| |
} |
| |
foreach ('mode','form','element') { |
| |
# is this required? Hmmm. |
| |
next unless (exists($ENV{"form.$_"})); |
| |
$ENV{"form.$_"}=&Apache::lonnet::unescape($ENV{"form.$_"}); |
| |
$ENV{"form.$_"}=~s/[^\w\/\s\(\)\=\-\"\']//g; |
| |
} |
| |
|
| |
# Check to see if enough is filled in |
| unless (&filled($ENV{'form.basicexp'})) { |
unless (&filled($ENV{'form.basicexp'})) { |
| &output_blank_field_error($r); |
&output_blank_field_error($r); |
| return OK; |
return OK; |
| } |
} |
| |
|
| |
# 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', |
| |
'keywords')); |
| |
$concatarg='title' if $ENV{'form.titleonly'}; |
| |
|
| |
$query=&build_SQL_query('concat('.$concatarg.')',$ENV{'form.'.'basicexp'}); |
| |
|
| |
# Get reply (either a hash reference to filehandles or bad connection) |
| |
# &Apache::lonnet::logthis("metadata query started:".time); |
| |
my $reply=&Apache::lonnet::metadata_query('select * from metadata where '.$query); |
| |
# &Apache::lonnet::logthis("metadata query finished:".time); |
| |
# Output search results |
| |
|
| |
&output_results('Basic',$r,$query,$reply,$hidden); |
| |
|
| $query="select * from metadata where concat($concatarg) like '\%$ENV{'form.basicexp'}\%'"; |
|
| my $reply=&Apache::lonnet::metadata_query($query); |
|
| &output_results('Basic',$r,$envhash,$query,$reply); |
|
| return OK; |
return OK; |
| } |
} |
| |
|
| # ---------------- 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=''; |
|
| map { |
|
| if (/^form\./ && !/submit/) { |
|
| my $name=$_; |
|
| my $key=$name; |
|
| $name=~s/^form\.//; |
|
| $persistent.=<<END; |
|
| <INPUT TYPE='hidden' NAME='$name' VALUE='$ENV{$key}'> |
|
| END |
|
| } |
|
| } (keys %ENV); |
|
| |
|
| $r->print(<<BEGINNING); |
###################################################################### |
| <html> |
###################################################################### |
| <head> |
|
| <title>The LearningOnline Network with CAPA</title> |
=pod |
| BEGINNING |
|
| $r->print(<<RESULTS); |
=item &build_SQL_query() |
| </head> |
|
| <body bgcolor="#ffffff"> |
Builds a SQL query string from a logical expression with AND/OR keywords |
| <img align=right src=/adm/lonIcons/lonlogos.gif> |
using Text::Query and &recursive_SQL_query_builder() |
| <h1>Search Catalog</h1> |
|
| <form method="post" action="/adm/searchcat"> |
=cut |
| $persistent |
|
| <input type='button' value='Revise search request' |
###################################################################### |
| onClick='this.form.submit();'> |
###################################################################### |
| <input type='button' value='CLOSE' |
sub build_SQL_query { |
| onClick='self.close();'> |
my ($field_name,$logic_statement)=@_; |
| <hr> |
my $q=new Text::Query('abc', |
| <h3>Helpful Message</h3> |
-parse => 'Text::Query::ParseAdvanced', |
| <p> |
-build => 'Text::Query::Build'); |
| Incorrect search query due to blank entry fields. |
$q->prepare($logic_statement); |
| You need to fill in the relevant |
my $matchexp=${$q}{'matchexp'}; chomp $matchexp; |
| fields on the search page in order for a query to be |
my $sql_query=&recursive_SQL_query_build($field_name,$matchexp); |
| processed. |
return $sql_query; |
| </p> |
|
| </body> |
|
| </html> |
|
| RESULTS |
|
| } |
} |
| |
|
| # ----------------------------- format and output results based on a reply list |
###################################################################### |
| sub output_results { |
###################################################################### |
| my ($mode,$r,$envhash,$query,@replylist)=@_; |
|
| my %ENV=%{$envhash}; |
|
| my $compiledresult=''; |
|
| |
|
| foreach my $reply (@replylist) { |
=pod |
| |
|
| my @results; |
=item &build_custommetadata_query() |
| |
|
| my $replyfile=''; |
Constructs a custom metadata query using a rather heinous regular |
| $reply=~/^([\.\w]+)$/; # must do since 'use strict' checks for tainting |
expression. |
| $replyfile=$r->dir_config('lonDaemons').'/tmp/'.$1; |
|
| $reply=~/(.*?)\_/; |
=cut |
| my $hostname=$1; |
|
| |
###################################################################### |
| { |
###################################################################### |
| while (1) { |
sub build_custommetadata_query { |
| last if -e $replyfile; |
my ($field_name,$logic_statement)=@_; |
| sleep 1; |
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 \"\%$value\%\")"; |
| |
} |
| |
elsif ($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,$pattern); |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &build_date_queries() |
| |
|
| |
Builds a SQL logic query to check time/date entries. |
| |
Also reports errors (check for /^Incorrect/). |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub build_date_queries { |
| |
my ($cmonth1,$cday1,$cyear1,$cmonth2,$cday2,$cyear2, |
| |
$lmonth1,$lday1,$lyear1,$lmonth2,$lday2,$lyear2)=@_; |
| |
my @queries; |
| |
if ($cmonth1 or $cday1 or $cyear1 or $cmonth2 or $cday2 or $cyear2) { |
| |
unless ($cmonth1 and $cday1 and $cyear1 and |
| |
$cmonth2 and $cday2 and $cyear2) { |
| |
return "Incorrect entry for the creation date. You must specify ". |
| |
"a starting month, day, and year and an ending month, ". |
| |
"day, and year."; |
| |
} |
| |
my $cnumeric1=sprintf("%d%2d%2d",$cyear1,$cmonth1,$cday1); |
| |
$cnumeric1+=0; |
| |
my $cnumeric2=sprintf("%d%2d%2d",$cyear2,$cmonth2,$cday2); |
| |
$cnumeric2+=0; |
| |
if ($cnumeric1>$cnumeric2) { |
| |
return "Incorrect entry for the creation date. The starting ". |
| |
"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 ''; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &output_results() |
| |
|
| |
Format and output results based on a reply list. |
| |
There are two windows that this function writes to. The main search |
| |
window ("srch") has a listing of the results. A secondary window ("popwin") |
| |
gives the status of the network search (time elapsed, number of machines |
| |
contacted, etc.) |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub output_results { |
| |
# &Apache::lonnet::logthis("output_results:".time); |
| |
my $fnum; # search result counter |
| |
my ($mode,$r,$query,$replyref,$hidden)=@_; |
| |
my %rhash=%{$replyref}; |
| |
my $compiledresult=''; |
| |
my $timeremain=300; # (seconds) |
| |
my $elapsetime=0; |
| |
my $resultflag=0; |
| |
my $tflag=1; |
| |
my $viewselect=$ENV{'form.viewselect'}; |
| |
# |
| |
# make query information persistent to allow for subsequent revision |
| |
my $persistent=&make_persistent(); |
| |
# spit out the results header |
| |
$r->print(&search_results_header($mode)); |
| |
$r->rflush(); |
| |
# begin showing the cataloged results |
| |
my $action = "/adm/searchcat"; |
| |
if ($mode eq 'Basic') { |
| |
$action .= "?reqinterface=basic"; |
| |
} elsif ($mode eq 'Advanced') { |
| |
$action .= "?reqinterface=advanced"; |
| |
} |
| |
$r->print(<<CATALOGCONTROLS); |
| |
<form name='results' method="post" action="$action"> |
| |
$hidden |
| |
<input type='hidden' name='acts' value='' /> |
| |
<input type='button' value='Revise search request' |
| |
onClick='this.form.submit();' /> |
| |
$importbutton |
| |
$closebutton |
| |
$persistent |
| |
<hr /> |
| |
CATALOGCONTROLS |
| |
# |
| |
# make the pop-up window for status |
| |
# |
| |
$r->print(&make_popwin(%rhash)); |
| |
$r->rflush(); |
| |
## |
| |
## Prepare for the main loop below |
| |
## |
| |
my $servercount=0; |
| |
my $hitcountsum=0; |
| |
my $servernum=(keys %rhash); |
| |
my $serversleft=$servernum; |
| |
## |
| |
## Run until we run out of time or we run out of servers |
| |
## |
| |
while($serversleft && $timeremain) { |
| |
## |
| |
## %rhash has servers deleted from it as results come in |
| |
## (within the foreach loop below). |
| |
## |
| |
foreach my $rkey (sort keys %rhash) { |
| |
# &Apache::lonnet::logthis("Server $rkey:".time); |
| |
$servercount++; |
| |
$compiledresult=''; |
| |
my $reply=$rhash{$rkey}; |
| |
my @results; |
| |
if ($reply eq 'con_lost') { |
| |
&popwin_imgupdate($r,$rkey,"srvbad.gif"); |
| |
$serversleft--; |
| |
delete $rhash{$rkey}; |
| |
} else { |
| |
# must do since 'use strict' checks for tainting |
| |
$reply=~/^([\.\w]+)$/; |
| |
my $replyfile=$r->dir_config('lonDaemons').'/tmp/'.$1; |
| |
$reply=~/(.*?)\_/; |
| |
for (my $counter=0;$counter<2;$counter++) { |
| |
if (-e $replyfile && ! -e "$replyfile.end") { |
| |
&popwin_imgupdate($r,$rkey,"srvhalf.gif"); |
| |
&popwin_js($r,'popwin.hc["'.$rkey.'"]='. |
| |
'"still transferring..."'.';'); |
| |
} |
| |
# Are we finished transferring data? |
| |
if (-e "$replyfile.end") { |
| |
$serversleft--; |
| |
delete $rhash{$rkey}; |
| |
if (-s $replyfile) { |
| |
&popwin_imgupdate($r,$rkey,"srvgood.gif"); |
| |
my $fh; |
| |
unless ($fh=Apache::File->new($replyfile)){ |
| |
# Is it really appropriate to die on this error? |
| |
$r->print('ERROR: file '. |
| |
$replyfile.' cannot be opened'); |
| |
return OK; |
| |
} |
| |
@results=<$fh> if $fh; |
| |
my $hits =@results; |
| |
&popwin_js($r,'popwin.hc["'.$rkey.'"]='. |
| |
$hits.';'); |
| |
$hitcountsum+=$hits; |
| |
&popwin_js($r,'popwin.document.forms.popremain.'. |
| |
'numhits.value='.$hitcountsum.';'); |
| |
} else { |
| |
&popwin_imgupdate($r,$rkey,"srvempty.gif"); |
| |
&popwin_js($r,'popwin.hc["'.$rkey.'"]=0;'); |
| |
} |
| |
last; |
| |
} # end of if ( -e "$replyfile.end") |
| |
last unless $timeremain; |
| |
sleep 1; # wait for daemons to write files? |
| |
$timeremain--; |
| |
$elapsetime++; |
| |
&popwin_js($r,"popwin.document.popremain.". |
| |
"elapsetime.value=$elapsetime;"); |
| } |
} |
| # QUESTION: how should I handle this error condition.. |
&popwin_js($r,'popwin.document.whirly.'. |
| # I'm sure there is syntax elsewhere I can use.. |
'src="/adm/lonIcons/lonanimend.gif";'); |
| my $fh=Apache::File->new($replyfile) or |
} # end of if ($reply eq 'con_lost') else statement |
| ($r->print('file cannot be opened') and return OK); |
my %Fields = undef; # Holds the data to be sent to the various |
| @results=<$fh>; |
# *_view routines. |
| } |
my ($extrashow,$customfields,$customhash) = &handle_custom_fields(\@results); |
| |
my @customfields = @$customfields; |
| foreach my $result (@results) { |
my %customhash = %$customhash; |
| my ($title,$author,$subject,$url,$keywords,$version, |
untie %hash if (keys %hash); |
| $notes,$abstract,$mime,$lang, |
# |
| $creationdate,$lastrevisiondate,$owner,$copyright |
if (! tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT,0640)) { |
| )=map {&Apache::lonnet::unescape($_)} (split(/\,/,$result)); |
$r->print('<html><head></head><body>Unable to tie hash to db '. |
| my $shortabstract=$abstract; |
'file</body></html>'); |
| $shortabstract=substr($abstract,0,200) if length($abstract)>200; |
} else { |
| $compiledresult.=<<END; |
if ($ENV{'form.launch'} eq '1') { |
| <p> |
&start_fresh_session(); |
| END |
} |
| $compiledresult.=<<END if $ENV{'form.catalogmode'} eq 'interactive'; |
foreach my $result (@results) { |
| |
next if $result=~/^custom\=/; |
| |
chomp $result; |
| |
next unless $result; |
| |
%Fields = &parse_raw_result($result,$rkey); |
| |
$Fields{'extrashow'}=$extrashow; |
| |
if ($extrashow) { |
| |
foreach my $field (@customfields) { |
| |
my $value=''; |
| |
$value = $1 if ($customhash{$Fields{'url'}}=~/\<{$field}[^\>]*\>(.*?)\<\/{$field}[^\>]*\>/s); |
| |
$Fields{'extrashow'}=~s/\<\!\-\- $field \-\-\>/ $value/g; |
| |
} |
| |
} |
| |
$compiledresult.="\n<p>\n"; |
| |
if ($ENV{'form.catalogmode'} eq 'interactive') { |
| |
my $titleesc=$Fields{'title'}; |
| |
$titleesc=~s/\'/\\'/; # ' |
| |
$compiledresult.=<<END if ($ENV{'form.catalogmode'} eq 'interactive'); |
| <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('$titleesc','$Fields{'url'}')"> |
| </font> |
</font> |
| <br> |
<br /> |
| END |
END |
| $compiledresult.=<<END; |
} |
| <b>URL: </b> <A HREF="http://$ENV{'HTTP_HOST'}$url" TARGET='search_preview'>$url</A> |
if ($ENV{'form.catalogmode'} eq 'groupsearch') { |
| <br> |
$fnum+=0; |
| <b>Title:</b> $title<br> |
$hash{"pre_${fnum}_link"}=$Fields{'url'}; |
| <b>Author(s):</b> $author<br> |
$hash{"pre_${fnum}_title"}=$Fields{'title'}; |
| <b>Subject:</b> $subject<br> |
$compiledresult.=<<END; |
| <b>Keyword(s):</b> $keywords<br> |
<font size='-1'> |
| <b>Notes:</b> $notes<br> |
<input type="checkbox" name="returnvalues" value="SELECT" |
| <b>Abstract:</b> $shortabstract<br> |
onClick="javascript:queue($fnum)" /> |
| <b>MIME Type:</b> $mimetag{$mime}<br> |
</font> |
| <b>Language:</b> $language{$lang}<br> |
<br /> |
| <b>Creation Date:</b> $creationdate<br> |
|
| <b>Last Revision Date:</b> $lastrevisiondate<br> |
|
| <b>Publisher/Owner:</b> $owner<br> |
|
| <b>Copyright/Distribution:</b> $copyright<br> |
|
| <b>Repository Location:</b> $hostname |
|
| </p> |
|
| END |
END |
| |
# <input type="hidden" name="title$fnum" value="$title" /> |
| |
# <input type="hidden" name="url$fnum" value="$url" /> |
| |
$fnum++; |
| |
} |
| |
if ($viewselect eq 'Detailed Citation View') { |
| |
$compiledresult.=&detailed_citation_view |
| |
(%Fields, hostname => $rkey ); |
| |
} |
| |
elsif ($viewselect eq 'Summary View') { |
| |
$compiledresult.=&summary_view |
| |
(%Fields, hostname => $rkey ); |
| |
} |
| |
elsif ($viewselect eq 'Fielded Format') { |
| |
$compiledresult.=&fielded_format_view |
| |
(%Fields, hostname => $rkey ); |
| |
} |
| |
elsif ($viewselect eq 'XML/SGML') { |
| |
$compiledresult.=&xml_sgml_view |
| |
(%Fields, hostname => $rkey ); |
| |
} |
| |
if ($compiledresult or $servercount!=$servernum) { |
| |
$compiledresult.="<hr align='left' width='200' noshade />"; |
| |
} |
| |
} |
| |
untie %hash; |
| } |
} |
| |
if ($compiledresult) { |
| unless ($compiledresult) { |
$resultflag=1; |
| $compiledresult="There were no results that matched your query"; |
$r->print($compiledresult); |
| } |
} |
| |
my $percent=sprintf('%3.0f',($servercount/$servernum*100)); |
| |
} # End of foreach loop over servers remaining |
| |
} # End of big loop - while($serversleft && $timeremain) |
| |
unless ($resultflag) { |
| |
$r->print("\nThere were no results that matched your query\n"); |
| |
} |
| |
# $r->print('<script type="text/javascript">'.'popwin.close()</script>'."\n"); $r->rflush(); |
| |
$r->print("</body>\n</html>\n"); |
| |
return; |
| |
} |
| |
|
| # make query information persistent to allow for subsequent revision |
########################################################### |
| my $persistent=''; |
########################################################### |
| map { |
|
| if (/^form\./ && !/submit/) { |
=pod |
| my $name=$_; |
|
| my $key=$name; |
=item &parse_raw_result() |
| $name=~s/^form\.//; |
|
| $persistent.=<<END; |
Takes a line from the file of results and parse it. Returns a hash |
| <INPUT TYPE='hidden' NAME='$name' VALUE='$ENV{$key}'> |
with keys for the following fields: |
| END |
'title', 'author', 'subject', 'url', 'keywords', 'version', 'notes', |
| } |
'abstract', 'mime', 'lang', 'owner', 'copyright', 'creationdate', |
| } (keys %ENV); |
'lastrevisiondate'. |
| |
|
| |
In addition, the following tags are set by calling the appropriate |
| |
lonnet function: 'language', 'cprtag', '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) = @_; |
| |
# Check for a comma - if it is there then we do not need to unescape the |
| |
# string. There seems to be some kind of problem with some items in |
| |
# the database - the entire string gets sent out unescaped...? |
| |
unless ($result =~ /,/) { |
| |
$result = &Apache::lonnet::unescape($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 %Fields = |
| |
( title => &Apache::lonnet::unescape($title), |
| |
author => &Apache::lonnet::unescape($author), |
| |
subject => &Apache::lonnet::unescape($subject), |
| |
url => &Apache::lonnet::unescape($url), |
| |
keywords => &Apache::lonnet::unescape($keywords), |
| |
version => &Apache::lonnet::unescape($version), |
| |
notes => &Apache::lonnet::unescape($notes), |
| |
abstract => &Apache::lonnet::unescape($abstract), |
| |
mime => &Apache::lonnet::unescape($mime), |
| |
lang => &Apache::lonnet::unescape($lang), |
| |
owner => &Apache::lonnet::unescape($owner), |
| |
copyright => &Apache::lonnet::unescape($copyright), |
| |
creationdate => &Apache::lonnet::unescape($creationdate), |
| |
lastrevisiondate => &Apache::lonnet::unescape($lastrevisiondate) |
| |
); |
| |
$Fields{'language'} = |
| |
&Apache::loncommon::languagedescription($Fields{'lang'}); |
| |
$Fields{'copyrighttag'} = |
| |
&Apache::loncommon::copyrightdescription($Fields{'copyright'}); |
| |
$Fields{'mimetag'} = |
| |
&Apache::loncommon::filedescription($Fields{'mime'}); |
| |
# Put spaces in the keyword list, if needed. |
| |
$Fields{'keywords'}=~ s/,([A-z])/, $1/g; |
| |
if ($Fields{'title'}=~ /^\s*$/ ) { |
| |
$Fields{'title'}='Untitled'; |
| |
} |
| |
unless ($ENV{'user.adv'}) { |
| |
$Fields{'keywords'} = '- not displayed -'; |
| |
$Fields{'notes'} = '- not displayed -'; |
| |
$Fields{'abstract'} = '- not displayed -'; |
| |
$Fields{'subject'} = '- not displayed -'; |
| |
} |
| |
if (length($Fields{'abstract'})>200) { |
| |
$Fields{'abstract'} = |
| |
substr($Fields{'abstract'},0,200).'...'; |
| |
} |
| |
if (length($Fields{'keywords'})>200) { |
| |
$Fields{'keywords'} = |
| |
substr($Fields{'keywords'},0,200).'...'; |
| |
} |
| |
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); |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &search_results_header |
| |
|
| |
Output the proper html headers and javascript code to deal with different |
| |
calling modes. |
| |
|
| |
Takes most inputs directly from %ENV, except $mode. |
| |
|
| |
=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. |
| |
|
| $r->print(<<BEGINNING); |
=item 'form.form' |
| |
|
| |
=item 'form.element' |
| |
|
| |
=back |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub search_results_header { |
| |
my ($mode) = @_; |
| |
$mode = lc($mode); |
| |
my $title; |
| |
if ($mode eq 'advanced') { |
| |
$title = "Advanced Search Results"; |
| |
} elsif ($mode eq 'basic') { |
| |
$title = "Basic Search Results"; |
| |
} |
| |
my $result = ''; |
| |
# output beginning of search page |
| |
$result.=<<BEGINNING; |
| <html> |
<html> |
| <head> |
<head> |
| <title>The LearningOnline Network with CAPA</title> |
<title>$title</title> |
| BEGINNING |
BEGINNING |
| $r->print(<<SCRIPT) if $ENV{'form.catalogmode'} eq 'interactive'; |
# conditional output of script functions dependent on the mode in |
| <script> |
# which the search was invoked |
| |
if ($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); |
| |
self.close(); |
| } |
} |
| function changeTitle(val) { |
function changeTitle(val) { |
| if (opener.inf.document.forms.resinfo.elements.t) { |
if (opener.inf.document.forms.resinfo.elements.t) { |
|
Line 668 BEGINNING
|
Line 1450 BEGINNING
|
| } |
} |
| </script> |
</script> |
| SCRIPT |
SCRIPT |
| $r->print(<<RESULTS); |
} elsif ($ENV{'form.mode'} eq 'edit') { |
| |
my $form = $ENV{'form.form'}; |
| |
my $element = $ENV{'form.element'}; |
| |
$result.=<<SCRIPT; |
| |
<script type="text/javascript"> |
| |
function select_data(title,url) { |
| |
changeURL(url); |
| |
self.close(); |
| |
} |
| |
function changeTitle(val) { |
| |
} |
| |
function changeURL(val) { |
| |
if (window.opener.document) { |
| |
window.opener.document.forms["$form"].elements["$element"].value=val; |
| |
} else { |
| |
var url = 'forms[\"$form\"].elements[\"$element\"].value'; |
| |
alert("Unable to transfer data to "+url); |
| |
} |
| |
} |
| |
</script> |
| |
SCRIPT |
| |
} |
| |
} |
| |
$result.=<<SCRIPT if $ENV{'form.catalogmode'} eq 'groupsearch'; |
| |
<script type="text/javascript"> |
| |
function select_data(title,url) { |
| |
// alert('DEBUG: Should be storing '+title+' and '+url); |
| |
} |
| |
function queue(val) { |
| |
if (eval("document.forms.results.returnvalues["+val+"].checked")) { |
| |
document.forms.results.acts.value+='1a'+val+'b'; |
| |
} |
| |
else { |
| |
document.forms.results.acts.value+='0a'+val+'b'; |
| |
} |
| |
} |
| |
function select_group() { |
| |
window.location= |
| |
"/adm/groupsort?mode=$ENV{'form.mode'}&catalogmode=groupsearch&acts="+ |
| |
document.forms.results.acts.value; |
| |
} |
| |
</script> |
| |
SCRIPT |
| |
$result.=<<SCRIPT; |
| |
<script type="text/javascript"> |
| |
function displayinfo(val) { |
| |
popwin.document.forms.popremain.sdetails.value=val; |
| |
} |
| |
function openhelp(val) { |
| |
openhelpwin=open('/adm/help/searchcat.html','helpscreen', |
| |
'scrollbars=1,width=400,height=300'); |
| |
openhelpwin.focus(); |
| |
} |
| |
function abortsearch(val) { |
| |
popwin.close(); |
| |
} |
| |
</script> |
| |
SCRIPT |
| |
$result.=<<END; |
| </head> |
</head> |
| <body bgcolor="#ffffff"> |
<body bgcolor="#ffffff"> |
| <img align=right src=/adm/lonIcons/lonlogos.gif> |
<img align=right src=/adm/lonIcons/lonlogos.gif> |
| |
<h1>$title</h1> |
| |
END |
| |
return $result; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &make_popwin() |
| |
|
| |
Returns html with javascript in it to open up the status window. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub make_popwin { |
| |
my %rhash = @_; |
| |
my $servernum=(keys %rhash); |
| |
my $hcinit; |
| |
my $grid="'<br />'+\n"; |
| |
# $sn is the server number, used ONLY to make sure we have |
| |
# rows of 10 each. No longer used to index images. |
| |
my $sn=1; |
| |
foreach my $sk (sort keys %rhash) { |
| |
# '<a href=" |
| |
$grid.="'<a href=\""; |
| |
# javascript:displayinfo('+ |
| |
$grid.="javascript:opener.displayinfo('+"; |
| |
# "'"+'key |
| |
$grid.="\"'\"+'"; |
| |
$grid.=$sk; |
| |
my $hc; |
| |
if ($rhash{$sk} eq 'con_lost') { |
| |
$hc="BAD CONNECTION, CONTACT SYSTEM ADMINISTRATOR "; |
| |
} |
| |
else { |
| |
$hc="'+\"'\"+\"+hc['$sk']+\"+\"'\"+'"; |
| |
$hcinit.="hc[\"$sk\"]=\"not yet connected...\";"; |
| |
} |
| |
$grid.=" hitcount=".$hc; |
| |
$grid.=" domain=".$Apache::lonnet::hostdom{$sk}; |
| |
$grid.=" IP=".$Apache::lonnet::hostip{$sk}; |
| |
# '+"'"+'">'+ |
| |
$grid.="'+\"'\"+')\">'+"; |
| |
$grid.="\n"; |
| |
$grid.="'<img border=\"0\" name=\"img_".$Apache::lonnet::hostdom{$sk}. |
| |
'_'.$sk."\" src=\"/adm/lonIcons/srvnull.gif\" alt=\"".$sk. |
| |
"\" /></a>'+\n"; |
| |
$grid.="'<br />'+\n" unless $sn%10; |
| |
$sn++; |
| |
} |
| |
my $result.=<<ENDPOP; |
| |
<script type="text/javascript"> |
| |
popwin=open('','popwin','scrollbars=1,width=400,height=220'); |
| |
popwin.focus(); |
| |
popwin.document.writeln('<'+'html>'); |
| |
popwin.document.writeln('<'+'head>'); |
| |
popwin.document.writeln('<'+'script>'); |
| |
popwin.document.writeln('hc=new Array();$hcinit'); |
| |
popwin.document.writeln('<'+'/script>'); |
| |
popwin.document.writeln('<'+'/head>'+ |
| |
'<'+'body bgcolor="#FFFFFF">'+ |
| |
'<'+'image name="whirly" align="right" src="/adm/lonIcons/'+ |
| |
'lonanim.gif" '+ |
| |
'alt="animated logo" />'+ |
| |
'<'+'h3>Search Results Progress<'+'/h3>'+ |
| |
'<'+'form name="popremain">'+ |
| |
'<'+'tt>'+ |
| |
'<'+'br clear="all"/><i>PLEASE BE PATIENT</i>'+ |
| |
'<'+'br />SCANNING $servernum SERVERS'+ |
| |
'<'+'br clear="all" />Number of record hits found '+ |
| |
'<'+'input type="text" size="10" name="numhits"'+ |
| |
' value="0" />'+ |
| |
'<'+'br clear="all" />Time elapsed '+ |
| |
'<'+'input type="text" size="10" name="elapsetime"'+ |
| |
' value="0" />'+ |
| |
'<'+'br />'+ |
| |
'SERVER GRID (click on any cell for details)'+ |
| |
$grid |
| |
'<'+'br />'+ |
| |
'Server details '+ |
| |
'<'+'input type="text" size="35" name="sdetails"'+ |
| |
' value="" />'+ |
| |
'<'+'br />'+ |
| |
' <'+'input type="button" name="button"'+ |
| |
' value="close this window" '+ |
| |
' onClick="javascript:opener.abortsearch()" />'+ |
| |
' <'+'input type="button" name="button"'+ |
| |
' value="help" onClick="javascript:opener.openhelp()" />'+ |
| |
'<'+'/tt>'+ |
| |
'<'+'/form>'+ |
| |
'<'+'/body><'+'/html>'); |
| |
popwin.document.close(); |
| |
</script> |
| |
ENDPOP |
| |
return $result; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=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 { |
| |
my %values = @_; |
| |
my $result=<<END; |
| |
<h3><a href="http://$ENV{'HTTP_HOST'}$values{'url'}" |
| |
target='search_preview'>$values{'title'}</a></h3> |
| |
<p> |
| |
<b>$values{'author'}</b>, <i>$values{'owner'}</i><br /> |
| |
|
| |
<b>Subject: </b> $values{'subject'}<br /> |
| |
<b>Keyword(s): </b> $values{'keywords'}<br /> |
| |
<b>Notes: </b> $values{'notes'}<br /> |
| |
<b>MIME Type: </b> $values{'mimetag'}<br /> |
| |
<b>Language: </b> $values{'language'}<br /> |
| |
<b>Copyright/Distribution:</b> $values{'cprtag'}<br /> |
| |
</p> |
| |
$values{'extrashow'} |
| |
<p> |
| |
$values{'shortabstract'} |
| |
</p> |
| |
END |
| |
return $result; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &summary_view() |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub summary_view { |
| |
my %values = @_; |
| |
my $result=<<END; |
| |
<a href="http://$ENV{'HTTP_HOST'}$values{'url'}" |
| |
target='search_preview'>$values{'author'}</a><br /> |
| |
$values{'title'}<br /> |
| |
$values{'owner'} -- $values{'lastrevisiondate'}<br /> |
| |
$values{'copyrighttag'}<br /> |
| |
$values{'extrashow'} |
| |
</p> |
| |
END |
| |
return $result; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &fielded_format_view() |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub fielded_format_view { |
| |
my %values = @_; |
| |
my $result=<<END; |
| |
<b>URL: </b> <a href="http://$ENV{'HTTP_HOST'}$values{'url'}" |
| |
target='search_preview'>$values{'url'}</a> |
| |
<br /> |
| |
<b>Title:</b> $values{'title'}<br /> |
| |
<b>Author(s):</b> $values{'author'}<br /> |
| |
<b>Subject:</b> $values{'subject'}<br /> |
| |
<b>Keyword(s):</b> $values{'keywords'}<br /> |
| |
<b>Notes:</b> $values{'notes'}<br /> |
| |
<b>MIME Type:</b> $values{'mimetag'}<br /> |
| |
<b>Language:</b> $values{'language'}<br /> |
| |
<b>Creation Date:</b> $values{'creationdate'}<br /> |
| |
<b>Last Revision Date:</b> $values{'lastrevisiondate'}<br /> |
| |
<b>Publisher/Owner:</b> $values{'owner'}<br /> |
| |
<b>Copyright/Distribution:</b> $values{'copyrighttag'}<br /> |
| |
<b>Repository Location:</b> $values{'hostname'}<br /> |
| |
<b>Abstract:</b> $values{'shortabstract'}<br /> |
| |
$values{'extrashow'} |
| |
</p> |
| |
END |
| |
return $result; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &xml_sgml_view() |
| |
|
| |
=back |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub xml_sgml_view { |
| |
my %values = @_; |
| |
my $result=<<END; |
| |
<pre> |
| |
<LonCapaResource> |
| |
<url>$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{'lang'}</language> |
| |
<languagetag>$values{'language'}</languagetag> |
| |
</languageInfo> |
| |
<creationdate>$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> |
| |
</pre> |
| |
$values{'extrashow'} |
| |
END |
| |
return $result; |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &filled() see if field is filled. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub filled { |
| |
my ($field)=@_; |
| |
if ($field=~/\S/ && $field ne 'any') { |
| |
return 1; |
| |
} |
| |
else { |
| |
return 0; |
| |
} |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &output_blank_field_error() |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub output_blank_field_error { |
| |
my ($r)=@_; |
| |
# make query information persistent to allow for subsequent revision |
| |
my $persistent=&make_persistent(); |
| |
|
| |
$r->print(<<BEGINNING); |
| |
<html> |
| |
<head> |
| |
<title>The LearningOnline Network with CAPA</title> |
| |
BEGINNING |
| |
$r->print(<<RESULTS); |
| |
</head> |
| |
<body bgcolor="#ffffff"> |
| |
<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"> |
| <input type='button' value='Revise search request' |
|
| onClick='this.form.submit();'> |
|
| <input type='button' value='CLOSE' |
|
| onClick='self.close();'> |
|
| $persistent |
$persistent |
| <hr> |
<input type='button' value='Revise search request' |
| <h3>Search Query</h3> |
onClick='this.form.submit();' /> |
| RESULTS |
$closebutton |
| if ($mode eq 'Basic') { |
<hr /> |
| $r->print(<<RESULTS); |
<h3>Helpful Message</h3> |
| <p> |
<p> |
| <b>Basic search:</b> $ENV{'form.basicexp'} |
Incorrect search query due to blank entry fields. |
| |
You need to fill in the relevant |
| |
fields on the search page in order for a query to be |
| |
processed. |
| </p> |
</p> |
| |
</body> |
| |
</html> |
| RESULTS |
RESULTS |
| } |
} |
| elsif ($mode eq 'Advanced') { |
|
| $r->print(<<RESULTS); |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &output_date_error() |
| |
|
| |
Output a full html page with an error message. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub output_date_error { |
| |
my ($r,$message)=@_; |
| |
# make query information persistent to allow for subsequent revision |
| |
my $persistent=&make_persistent(); |
| |
|
| |
$r->print(<<RESULTS); |
| |
<html> |
| |
<head> |
| |
<title>The LearningOnline Network with CAPA</title> |
| |
</head> |
| |
<body bgcolor="#ffffff"> |
| |
<img align='right' src='/adm/lonIcons/lonlogos.gif' /> |
| |
<h1>Search Catalog</h1> |
| |
<form method="post" action="/adm/searchcat"> |
| |
$persistent |
| |
<input type='button' value='Revise search request' |
| |
onClick='this.form.submit();' /> |
| |
$closebutton |
| |
<hr /> |
| |
<h3>Helpful Message</h3> |
| <p> |
<p> |
| <b>Advanced search</b> |
$message |
| $query |
|
| </p> |
</p> |
| RESULTS |
|
| } |
|
| $r->print(<<RESULTS); |
|
| <h3>Search Results</h3> |
|
| $compiledresult |
|
| </body> |
</body> |
| </html> |
</html> |
| RESULTS |
RESULTS |
| } |
|
| } |
} |
| |
|
| # ------------------------------------------------------------- build_SQL_query |
###################################################################### |
| sub build_SQL_query { |
###################################################################### |
| my ($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 $sql_query; |
|
| } |
|
| |
|
| # - Recursively parse a reverse notation expression into a SQL query expression |
=pod |
| sub recursive_SQL_query_build { |
|
| my ($dkey,$pattern)=@_; |
=item &start_fresh_session() |
| my @matches=($pattern=~/(\[[^\]|\[]*\])/g); |
|
| return $pattern unless @matches; |
Cleans the global %hash by removing all fields which begin with |
| foreach my $match (@matches) { |
'pre_' or 'store'. |
| $match=~/\[ (\w+)\s(.*) \]/; |
|
| my ($key,$value)=($1,$2); |
=cut |
| my $replacement=''; |
|
| if ($key eq 'literal') { |
###################################################################### |
| $replacement="($dkey like \"\%$value\%\")"; |
###################################################################### |
| } |
sub start_fresh_session { |
| elsif ($key eq 'and') { |
delete $hash{'mode_catalog'}; |
| $value=~/(.*[\"|\)]) ([|\(|\^].*)/; |
foreach (keys %hash) { |
| $replacement="($1 AND $2)"; |
if ($_ =~ /^pre_/) { |
| } |
delete $hash{$_}; |
| elsif ($key eq 'or') { |
} |
| $value=~/(.*[\"|\)]) ([|\(|\^].*)/; |
if ($_ =~ /^store/) { |
| $replacement="($1 OR $2)"; |
delete $hash{$_}; |
| } |
} |
| substr($pattern, |
|
| index($pattern,$match), |
|
| length($match), |
|
| $replacement |
|
| ); |
|
| } |
} |
| &recursive_SQL_query_build($dkey,$pattern); |
|
| } |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &popwin_js() send javascript to popwin |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub popwin_js { |
| |
# Print javascript out to popwin, but make sure we dont generate |
| |
# any javascript errors in doing so. |
| |
my ($r,$text) = @_; |
| |
$r->print(<<"END"); |
| |
<script type="text/javascript"> |
| |
if (! popwin.closed) { |
| |
$text |
| |
} |
| |
</script> |
| |
END |
| |
$r->rflush(); |
| |
} |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
|
| |
=pod |
| |
|
| |
=item &popwin_imgupdate() |
| |
|
| |
Send a given image (and its location) out to the browser. Takes as |
| |
input $r, loncapa server id, and an icon URL. |
| |
|
| |
=cut |
| |
|
| |
###################################################################### |
| |
###################################################################### |
| |
sub popwin_imgupdate { |
| |
my ($r,$server,$icon) = @_; |
| |
&popwin_js($r,'popwin.document.img_'.$Apache::lonnet::hostdom{$server}. |
| |
'_'.$server.'.'.'src="/adm/lonIcons/'.$icon.'";'); |
| |
} |
| |
|
| 1; |
1; |
| |
|
| __END__ |
__END__ |
| |
|
| |
=pod |
| |
|
| |
=back |
| |
|
| |
=cut |
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