Annotation of loncom/interface/lonsearchcat.pm, revision 1.341
1.98 harris41 1: # The LearningOnline Network with CAPA
1.108 harris41 2: # Search Catalog
3: #
1.341 ! bisitz 4: # $Id: lonsearchcat.pm,v 1.340 2013/12/31 01:07:28 raeburn Exp $
1.108 harris41 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
1.98 harris41 14: #
1.108 harris41 15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
1.1 www 27: #
1.121 matthew 28: ###############################################################################
29: ###############################################################################
30:
31: =pod
32:
33: =head1 NAME
34:
1.140 matthew 35: lonsearchcat - LONCAPA Search Interface
1.121 matthew 36:
37: =head1 SYNOPSIS
38:
39: Search interface to LON-CAPAs digital library
40:
41: =head1 DESCRIPTION
42:
43: This module enables searching for a distributed browseable catalog.
1.104 harris41 44:
1.121 matthew 45: This is part of the LearningOnline Network with CAPA project
46: described at http://www.lon-capa.org.
47:
48: lonsearchcat presents the user with an interface to search the LON-CAPA
49: digital library. lonsearchcat also initiates the execution of a search
50: by sending the search parameters to LON-CAPA servers. The progress of
1.205 www 51: search (on a server basis) is displayed to the user in a separate window.
1.121 matthew 52:
53: =head1 Internals
54:
55: =cut
56:
57: ###############################################################################
1.98 harris41 58: ###############################################################################
1.121 matthew 59:
1.1 www 60: package Apache::lonsearchcat;
61:
62: use strict;
1.167 www 63: use Apache::Constants qw(:common :http);
1.243 albertel 64: use Apache::lonnet;
1.6 harris41 65: use Apache::File();
1.7 harris41 66: use CGI qw(:standard);
1.41 harris41 67: use Text::Query;
1.101 harris41 68: use GDBM_File;
1.112 harris41 69: use Apache::loncommon();
1.144 matthew 70: use Apache::lonmysql();
1.200 www 71: use Apache::lonmeta;
72: use Apache::lonhtmlcommon;
1.186 www 73: use Apache::lonlocal;
1.204 matthew 74: use LONCAPA::lonmetadata();
1.212 matthew 75: use HTML::Entities();
1.228 matthew 76: use Parse::RecDescent;
1.231 raeburn 77: use Apache::lonnavmaps;
1.255 www 78: use Apache::lonindexer();
1.328 wenzelju 79: use Apache::lonwishlist();
1.265 www 80: use LONCAPA;
1.1 www 81:
1.121 matthew 82: ######################################################################
83: ######################################################################
1.196 matthew 84: ##
85: ## Global variables
86: ##
1.121 matthew 87: ######################################################################
88: ######################################################################
1.196 matthew 89: my %groupsearch_db; # Database hash used to save values for the
90: # groupsearch RAT interface.
91: my %persistent_db; # gdbm hash which holds data which is supposed to
92: # persist across calls to lonsearchcat.pm
1.121 matthew 93:
1.200 www 94: # The different view modes and associated functions
95:
96: my %Views = ("detailed" => \&detailed_citation_view,
1.255 www 97: "detailedpreview" => \&detailed_citation_preview,
1.200 www 98: "summary" => \&summary_view,
1.255 www 99: "summarypreview" => \&summary_preview,
1.200 www 100: "fielded" => \&fielded_format_view,
101: "xml" => \&xml_sgml_view,
102: "compact" => \&compact_view);
1.101 harris41 103:
1.121 matthew 104: ######################################################################
105: ######################################################################
1.98 harris41 106: sub handler {
107: my $r = shift;
1.197 www 108: # &set_defaults();
1.196 matthew 109: #
110: # set form defaults
1.145 matthew 111: #
1.196 matthew 112: my $hidden_fields;# Hold all the hidden fields used to keep track
113: # of the search system state
114: my $importbutton; # button to take the selected results and go to group
115: # sorting
116: my $diropendb; # The full path to the (temporary) search database file.
117: # This is set and used in &handler() and is also used in
118: # &output_results().
1.157 www 119:
1.221 matthew 120: #
1.145 matthew 121: my $closebutton; # button that closes the search window
122: # This button is different for the RAT compared to
123: # normal invocation.
124: #
1.186 www 125: &Apache::loncommon::content_type($r,'text/html');
1.98 harris41 126: $r->send_http_header;
127: return OK if $r->header_only;
1.156 matthew 128: ##
129: ## Prevent caching of the search interface window. Hopefully this means
130: ## we will get the launch=1 passed in a little more.
131: &Apache::loncommon::no_cache($r);
1.145 matthew 132: ##
133: ## Pick up form fields passed in the links.
134: ##
135: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.146 matthew 136: ['catalogmode','launch','acts','mode','form','element','pause',
1.158 matthew 137: 'phase','persistent_db_id','table','start','show',
1.288 albertel 138: 'cleargroupsort','titleelement','area','inhibitmenu']);
1.146 matthew 139: ##
140: ## The following is a trick - we wait a few seconds if asked to so
141: ## the daemon running the search can get ahead of the daemon
142: ## printing the results. We only need (theoretically) to do
143: ## this once, so the pause indicator is deleted
144: ##
1.243 albertel 145: if (exists($env{'form.pause'})) {
1.181 matthew 146: sleep(1);
1.243 albertel 147: delete($env{'form.pause'});
1.146 matthew 148: }
1.143 matthew 149: ##
150: ## Initialize global variables
151: ##
1.121 matthew 152: my $domain = $r->dir_config('lonDefDomain');
1.330 foxr 153: my $temp_file_dir = LONCAPA::tempdir();
154: $diropendb= $temp_file_dir .
1.266 www 155: "$env{'user.domain'}_$env{'user.name'}_sel_res.db";
1.145 matthew 156: #
157: # set the name of the persistent database
1.243 albertel 158: # $env{'form.persistent_db_id'} can only have digits in it.
159: if (! exists($env{'form.persistent_db_id'}) ||
160: ($env{'form.persistent_db_id'} =~ /\D/) ||
161: ($env{'form.launch'} eq '1')) {
162: $env{'form.persistent_db_id'} = time;
1.145 matthew 163: }
1.257 albertel 164:
1.330 foxr 165: my $persistent_db_file = $temp_file_dir .
1.265 www 166: &escape($domain).
167: '_'.&escape($env{'user.name'}).
1.243 albertel 168: '_'.$env{'form.persistent_db_id'}.'_persistent_search.db';
1.146 matthew 169: ##
1.209 matthew 170: &Apache::lonhtmlcommon::clear_breadcrumbs();
1.277 raeburn 171:
172: my @allowed_searches = ('portfolio');
173: if (&Apache::lonnet::allowed('bre',$env{'request.role.domain'})) {
174: push(@allowed_searches,'res');
175: }
176: my $crumb_text = 'Portfolio Search';
1.327 www 177: if (@allowed_searches ==2) {
178: $crumb_text = 'Portfolio and Catalog Search';
1.277 raeburn 179: }
180: &Apache::lonhtmlcommon::add_breadcrumb
181: ({href=>'/adm/searchcat?'.
1.288 albertel 182: &Apache::loncommon::inhibit_menu_check().
1.309 bisitz 183: '&catalogmode='.$env{'form.catalogmode'}.
184: '&launch='.$env{'form.launch'}.
185: '&mode='.$env{'form.mode'},
1.277 raeburn 186: text=>"$crumb_text",
1.227 matthew 187: target=>'_top',
1.209 matthew 188: bug=>'Searching',});
189: #
1.243 albertel 190: if ($env{'form.phase'} !~ m/(basic|adv|course)_search/) {
1.221 matthew 191: if (! &get_persistent_form_data($persistent_db_file)) {
1.243 albertel 192: if ($env{'form.phase'} =~ /(run_search|results)/) {
1.221 matthew 193: &Apache::lonnet::logthis('lonsearchcat:'.
194: 'Unable to recover data from '.
195: $persistent_db_file);
1.256 albertel 196: my $msg =
1.341 ! bisitz 197: &mt('We were unable to retrieve data describing your search.').
! 198: ' '.&mt('This is a serious error and has been logged.').
! 199: '<br />'.
! 200: &mt('Please alert your LON-CAPA administrator.');
! 201: &Apache::loncommon::simple_error_page(
! 202: $r,'Search Error',
! 203: $msg,
! 204: {'no_auto_mt_msg' => 1});
1.261 albertel 205: return OK;
1.221 matthew 206: }
1.150 matthew 207: }
1.221 matthew 208: } else {
209: &clean_up_environment();
1.147 matthew 210: }
1.124 matthew 211: ##
1.143 matthew 212: ## Clear out old values from groupsearch database
1.124 matthew 213: ##
1.146 matthew 214: untie %groupsearch_db if (tied(%groupsearch_db));
1.243 albertel 215: if (($env{'form.cleargroupsort'} eq '1') ||
216: (($env{'form.launch'} eq '1') &&
1.267 www 217: ($env{'form.catalogmode'} eq 'import'))) {
1.148 matthew 218: if (tie(%groupsearch_db,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {
1.101 harris41 219: &start_fresh_session();
1.142 matthew 220: untie %groupsearch_db;
1.243 albertel 221: delete($env{'form.cleargroupsort'});
1.122 matthew 222: } else {
1.155 matthew 223: # This is a stupid error to give to the user.
224: # It really tells them nothing.
1.256 albertel 225: my $msg = 'Unable to tie hash to db file.';
1.261 albertel 226: &Apache::loncommon::simple_error_page($r,'Search Error',
227: $msg);
228: return OK;
1.101 harris41 229: }
230: }
1.124 matthew 231: ##
1.150 matthew 232: ## Configure hidden fields
1.124 matthew 233: ##
1.145 matthew 234: $hidden_fields = '<input type="hidden" name="persistent_db_id" value="'.
1.243 albertel 235: $env{'form.persistent_db_id'}.'" />'."\n";
236: if (exists($env{'form.catalogmode'})) {
1.223 matthew 237: $hidden_fields .= &hidden_field('catalogmode');
1.150 matthew 238: }
1.243 albertel 239: if (exists($env{'form.form'})) {
1.223 matthew 240: $hidden_fields .= &hidden_field('form');
1.150 matthew 241: }
1.243 albertel 242: if (exists($env{'form.element'})) {
1.223 matthew 243: $hidden_fields .= &hidden_field('element');
1.150 matthew 244: }
1.243 albertel 245: if (exists($env{'form.titleelement'})) {
1.223 matthew 246: $hidden_fields .= &hidden_field('titleelement');
1.191 albertel 247: }
1.243 albertel 248: if (exists($env{'form.mode'})) {
1.223 matthew 249: $hidden_fields .= &hidden_field('mode');
1.150 matthew 250: }
1.276 raeburn 251: if (exists($env{'form.area'})) {
252: $hidden_fields .= &hidden_field('area');
253: }
1.288 albertel 254: if (exists($env{'form.inhibitmenu'})) {
255: $hidden_fields .= &hidden_field('inhibitmenu');
256: }
1.150 matthew 257: ##
258: ## Configure dynamic components of interface
1.146 matthew 259: ##
1.243 albertel 260: if ($env{'form.catalogmode'} eq 'interactive') {
1.313 bisitz 261: $closebutton="<input type='button' name='close' value='".&mt('Close')."' ";
1.243 albertel 262: if ($env{'form.phase'} =~ /(results|run_search)/) {
1.315 bisitz 263: $closebutton .="onclick='parent.close()'";
1.150 matthew 264: } else {
1.313 bisitz 265: $closebutton .="onclick='self.close()'";
1.150 matthew 266: }
1.315 bisitz 267: $closebutton .=" />\n";
1.267 www 268: } elsif ($env{'form.catalogmode'} eq 'import') {
1.313 bisitz 269: $closebutton="<input type='button' name='close' value='".&mt('Close')."' ";
1.243 albertel 270: if ($env{'form.phase'} =~ /(results|run_search)/) {
1.315 bisitz 271: $closebutton .="onclick='parent.close()'";
1.150 matthew 272: } else {
1.313 bisitz 273: $closebutton .="onclick='self.close()'";
1.150 matthew 274: }
1.315 bisitz 275: $closebutton .= " />";
1.297 bisitz 276: my $txt_import = &mt('IMPORT');
1.98 harris41 277: $importbutton=<<END;
1.297 bisitz 278: <input type='button' name='import' value='$txt_import'
1.315 bisitz 279: onclick='javascript:select_group()' />
1.98 harris41 280: END
1.146 matthew 281: } else {
282: $closebutton = '';
283: $importbutton = '';
1.98 harris41 284: }
1.124 matthew 285: ##
1.146 matthew 286: ## Sanity checks on form elements
1.124 matthew 287: ##
1.243 albertel 288: if (!defined($env{'form.viewselect'})) {
1.248 www 289: $env{'form.viewselect'} ="summary";
1.146 matthew 290: }
1.243 albertel 291: $env{'form.phase'} = 'disp_basic' if (! exists($env{'form.phase'}));
292: $env{'form.show'} = 20 if (! exists($env{'form.show'}));
1.209 matthew 293: #
1.243 albertel 294: $env{'form.searchmode'} = 'basic' if (! exists($env{'form.searchmode'}));
295: if ($env{'form.phase'} eq 'adv_search' ||
296: $env{'form.phase'} eq 'disp_adv') {
297: $env{'form.searchmode'} = 'advanced';
1.209 matthew 298: }
299: #
1.243 albertel 300: if ($env{'form.searchmode'} eq 'advanced') {
1.277 raeburn 301: my $srchtype = 'Catalog';
302: if ($env{'form.area'} eq 'portfolio') {
303: $srchtype = 'Portfolio';
304: }
1.209 matthew 305: &Apache::lonhtmlcommon::add_breadcrumb
1.288 albertel 306: ({href=>'/adm/searchcat?'.&Apache::loncommon::inhibit_menu_check().
1.309 bisitz 307: '&phase=disp_adv'.
308: '&catalogmode='.$env{'form.catalogmode'}.
309: '&launch='.$env{'form.launch'}.
310: '&mode='.$env{'form.mode'},
1.277 raeburn 311: text=>"Advanced $srchtype Search",
1.209 matthew 312: bug=>'Searching',});
1.327 www 313: }
1.146 matthew 314: ##
315: ## Switch on the phase
316: ##
1.243 albertel 317: if ($env{'form.phase'} eq 'disp_basic') {
1.196 matthew 318: &print_basic_search_form($r,$closebutton,$hidden_fields);
1.243 albertel 319: } elsif ($env{'form.phase'} eq 'disp_adv') {
1.196 matthew 320: &print_advanced_search_form($r,$closebutton,$hidden_fields);
1.243 albertel 321: } elsif ($env{'form.phase'} eq 'results') {
1.276 raeburn 322: &display_results($r,$importbutton,$closebutton,$diropendb,
323: $env{'form.area'});
1.243 albertel 324: } elsif ($env{'form.phase'} =~ /^(sort|run_search)$/) {
1.336 raeburn 325: my ($query,$customquery,$customshow,$libraries,$pretty_string,$domainsref) =
1.146 matthew 326: &get_persistent_data($persistent_db_file,
327: ['query','customquery','customshow',
1.336 raeburn 328: 'libraries','pretty_string','domains']);
1.243 albertel 329: if ($env{'form.phase'} eq 'sort') {
1.151 matthew 330: &print_sort_form($r,$pretty_string);
1.243 albertel 331: } elsif ($env{'form.phase'} eq 'run_search') {
1.151 matthew 332: &run_search($r,$query,$customquery,$customshow,
1.336 raeburn 333: $libraries,$pretty_string,$env{'form.area'},$domainsref);
1.151 matthew 334: }
1.243 albertel 335: } elsif(($env{'form.phase'} eq 'basic_search') ||
336: ($env{'form.phase'} eq 'adv_search')) {
1.228 matthew 337: #
338: # We are running a search, try to parse it
1.336 raeburn 339: my ($query,$customquery,$customshow,$libraries,$domains) =
340: (undef,undef,undef,undef,undef);
1.228 matthew 341: my $pretty_string;
1.243 albertel 342: if ($env{'form.phase'} eq 'basic_search') {
1.336 raeburn 343: ($query,$pretty_string,$libraries,$domains) =
1.228 matthew 344: &parse_basic_search($r,$closebutton,$hidden_fields);
345: return OK if (! defined($query));
1.243 albertel 346: &make_persistent({ basicexp => $env{'form.basicexp'}},
1.228 matthew 347: $persistent_db_file);
348: } else { # Advanced search
1.336 raeburn 349: ($query,$customquery,$customshow,$libraries,$pretty_string,$domains)
1.228 matthew 350: = &parse_advanced_search($r,$closebutton,$hidden_fields);
351: return OK if (! defined($query));
352: }
353: &make_persistent({ query => $query,
354: customquery => $customquery,
355: customshow => $customshow,
356: libraries => $libraries,
1.336 raeburn 357: pretty_string => $pretty_string,
358: domains => $domains },
1.228 matthew 359: $persistent_db_file);
360: #
1.146 matthew 361: # Set up table
1.276 raeburn 362: if (! defined(&create_results_table($env{'form.area'}))) {
1.198 www 363: my $errorstring=&Apache::lonmysql::get_error();
1.211 matthew 364: &Apache::lonnet::logthis('lonsearchcat.pm: Unable to create '.
365: 'needed table. lonmysql error:'.
366: $errorstring);
1.256 albertel 367:
368: my $msg =
1.286 albertel 369: 'Unable to create table in which to save search results. '.
1.256 albertel 370: 'The search has been aborted.';
1.261 albertel 371: &Apache::loncommon::simple_error_page($r,'Search Error',
372: $msg);
373: return OK;
1.146 matthew 374: }
1.243 albertel 375: delete($env{'form.launch'});
1.146 matthew 376: if (! &make_form_data_persistent($r,$persistent_db_file)) {
1.256 albertel 377: my $msg=
1.286 albertel 378: 'Unable to properly save search information. '.
1.256 albertel 379: 'The search has been aborted.';
1.261 albertel 380: &Apache::loncommon::simple_error_page($r,'Search Error',
381: $msg);
382: return OK;
1.256 albertel 383: }
1.145 matthew 384: ##
1.146 matthew 385: ## Print out the frames interface
1.145 matthew 386: ##
1.228 matthew 387: if (defined($query)) {
388: &print_frames_interface($r);
389: }
1.124 matthew 390: }
391: return OK;
392: }
1.98 harris41 393:
1.221 matthew 394: #
395: # The mechanism used to store values away and retrieve them does not
396: # handle the case of missing environment variables being significant.
397: #
398: # This routine sets non existant checkbox form elements to ''.
399: #
400: sub clean_up_environment {
1.243 albertel 401: if ($env{'form.phase'} eq 'basic_search') {
402: if (! exists($env{'form.related'})) {
403: $env{'form.related'} = '';
1.221 matthew 404: }
1.243 albertel 405: if (! exists($env{'form.domains'})) {
406: $env{'form.domains'} = '';
1.221 matthew 407: }
1.243 albertel 408: } elsif ($env{'form.phase'} eq 'adv_search') {
1.221 matthew 409: foreach my $field ('title','keywords','notes',
410: 'abstract','standards','mime') {
1.243 albertel 411: if (! exists($env{'form.'.$field.'_related'})) {
412: $env{'form.'.$field.'_related'} = '';
1.221 matthew 413: }
414: }
1.243 albertel 415: } elsif ($env{'form.phase'} eq 'course_search') {
416: if (! exists($env{'form.crsrelated'})) {
417: $env{'form.crsrelated'} = '';
1.221 matthew 418: }
419: }
420: }
421:
1.223 matthew 422: sub hidden_field {
423: my ($name,$value) = @_;
424: if (! defined($value)) {
1.243 albertel 425: $value = $env{'form.'.$name};
1.223 matthew 426: }
427: return '<input type="hidden" name="'.$name.'" value="'.$value.'" />'.$/;
428: }
429:
1.124 matthew 430: ######################################################################
1.167 www 431:
1.339 raeburn 432: =pod
1.124 matthew 433:
1.339 raeburn 434: =over 4
435:
1.146 matthew 436: =item &print_basic_search_form()
1.124 matthew 437:
1.204 matthew 438: Prints the form for the basic search. Sorry the name is so cryptic.
1.124 matthew 439:
440: =cut
441:
442: ######################################################################
443: ######################################################################
1.204 matthew 444: sub print_basic_search_form {
1.196 matthew 445: my ($r,$closebutton,$hidden_fields) = @_;
1.267 www 446: my $result = ($env{'form.catalogmode'} ne 'import');
1.256 albertel 447: my $bread_crumb =
1.263 albertel 448: &Apache::lonhtmlcommon::breadcrumbs('Searching','Search_Basic',
1.267 www 449: $env{'form.catalogmode'} ne 'import');
1.305 schafran 450: my $scrout = &Apache::loncommon::start_page('Content Library').$bread_crumb;
1.276 raeburn 451: # Search form for resource space
1.243 albertel 452: if (&Apache::lonnet::allowed('bre',$env{'request.role.domain'})) {
1.276 raeburn 453: $scrout .= &setup_basic_search($r,'res',$hidden_fields,$closebutton);
454: $scrout .= '<hr /><br />';
1.180 matthew 455: }
1.276 raeburn 456: # Search form for accessible portfolio files
457: $scrout.= &setup_basic_search($r,'portfolio',$hidden_fields,$closebutton);
1.256 albertel 458: $scrout .= &Apache::loncommon::end_page();
1.146 matthew 459: $r->print($scrout);
460: return;
1.124 matthew 461: }
1.276 raeburn 462:
463: sub setup_basic_search {
464: my ($r,$area,$hidden_fields,$closebutton) = @_;
465: # Define interface components
466: my %lt = &Apache::lonlocal::texthash (
467: res => 'LON-CAPA Catalog Search',
468: portfolio => 'Portfolio Search',
469: );
470: my ($userelatedwords,$onlysearchdomain,$inclext,$adv_search_link,$scrout);
1.318 bisitz 471:
472: $userelatedwords = '<label>'
473: .&Apache::lonhtmlcommon::checkbox(
474: 'related',
475: $env{'form.related'},
476: 'related')
477: .' '
478: .&mt('use related words')
479: .'</label>';
480:
481: $onlysearchdomain = '<label>'
482: .&Apache::lonhtmlcommon::checkbox(
483: 'domains',
484: $env{'form.domains'},
485: $r->dir_config('lonDefDomain'))
486: .' '
487: .&mt('only search domain [_1]'
488: ,'<b>'.$r->dir_config('lonDefDomain').'</b>')
489: .'</label>';
490:
1.276 raeburn 491: $adv_search_link = '<a href="/adm/searchcat?'.
1.288 albertel 492: &Apache::loncommon::inhibit_menu_check().
1.309 bisitz 493: '&phase=disp_adv'.
494: '&catalogmode='.$env{'form.catalogmode'}.
495: '&launch='.$env{'form.launch'}.
496: '&mode='.$env{'form.mode'}.
497: '&area='.$area.
498: '&form='.$env{'form.form'}.
499: '&titleelement='.$env{'form.titleelement'}.
500: '&element='.$env{'form.element'}.
1.276 raeburn 501: '">'.&mt('Advanced Search').'</a>';
502: #
503: $scrout.='<form name="loncapa_search" method="post" '.
504: 'action="/adm/searchcat">'.
505: '<input type="hidden" name="phase" value="basic_search" />'.
506: $hidden_fields;
507: if (!exists($env{'form.area'})) {
508: $scrout .= '<input type="hidden" name="area" value="'.$area.'" />';
509: }
510: #
1.313 bisitz 511: $scrout .= '<div align="center">'.$/;
1.276 raeburn 512: # if ($env{'request.course.id'}) {
513: $scrout .= '<h1>'.$lt{$area}.'</h1>';
514: # } else {
515: # No need to tell them they are searching
516: # $scrout.= ('<br />'x2);
517: # }
518: $scrout.='<table>'.
519: '<tr><td align="center" valign="top">'.
520: &Apache::lonhtmlcommon::textbox('basicexp',
521: $env{'form.basicexp'},50).
522: '<br />'.
1.313 bisitz 523: '<span class="LC_fontsize_small">'.&searchhelp().'</span>'.'</td>'.
524: '<td>'.
1.301 bisitz 525: '<span class="LC_nobreak">'.(' 'x3).$adv_search_link.'</span>'.'<br />'.
526: '<span class="LC_nobreak">'.(' 'x1).$userelatedwords.'</span>'.'<br />'.
527: '<span class="LC_nobreak">'.(' 'x1).$onlysearchdomain.'</span>'.'<br />'.
528: '<span class="LC_nobreak">'.(' 'x1).$inclext.'</span>'.'<br />'.
1.313 bisitz 529: '</td>'.
530: '</tr>'.
531: '</table>'.$/;
532: #
533: $scrout .= '<p>'
534: .&viewoptions()
535: .'</p>'
536: .'<p>'
537: .'<input type="submit" name="basicsubmit" '
538: .'value="'.&mt('Search').'" />'
539: .' '
540: .$closebutton
541: .'</p>';
1.276 raeburn 542: #
1.313 bisitz 543: $scrout .= '</div>'.'</form>';
1.276 raeburn 544: return $scrout;
545: }
546:
1.124 matthew 547: ######################################################################
548: ######################################################################
549:
550: =pod
551:
552: =item &advanced_search_form()
553:
1.204 matthew 554: Prints the advanced search form.
1.124 matthew 555:
556: =cut
557:
558: ######################################################################
559: ######################################################################
1.146 matthew 560: sub print_advanced_search_form{
1.196 matthew 561: my ($r,$closebutton,$hidden_fields) = @_;
1.256 albertel 562: my $bread_crumb =
1.263 albertel 563: &Apache::lonhtmlcommon::breadcrumbs('Searching','Search_Advanced',
1.267 www 564: $env{'form.catalogmode'} ne 'import');
1.200 www 565: my %lt=&Apache::lonlocal::texthash('srch' => 'Search',
566: 'reset' => 'Reset',
567: 'help' => 'Help');
1.217 matthew 568: my $advanced_buttons=<<"END";
1.314 bisitz 569: <p>
1.200 www 570: <input type="submit" name="advancedsubmit" value='$lt{"srch"}' />
571: <input type="reset" name="reset" value='$lt{"reset"}' />
1.129 matthew 572: $closebutton
1.314 bisitz 573: </p>
1.129 matthew 574: END
1.277 raeburn 575: my $srchtype = 'Catalog';
1.279 raeburn 576: my $jscript;
1.277 raeburn 577: if ($env{'form.area'} eq 'portfolio') {
578: $srchtype = 'Portfolio';
1.279 raeburn 579: $jscript = '<script type="text/javascript">
1.313 bisitz 580: // <![CDATA[
1.279 raeburn 581: function additional_metadata() {
582: if (document.advsearch.newfield.checked) {
583: document.advsearch.phase.value = "disp_adv";
584: document.advsearch.numaddedfields.value = parseInt(document.advsearch.numaddedfields.value) +1;
585: document.advsearch.submit();
1.277 raeburn 586: }
1.279 raeburn 587: }
1.313 bisitz 588: // ]]>
1.279 raeburn 589: </script>';
590: }
591: my $scrout= &Apache::loncommon::start_page("Advanced $srchtype Search",
592: $jscript);
1.314 bisitz 593: $scrout .= $bread_crumb;
594:
595: $scrout .= '<form method="post" action="/adm/searchcat" name="advsearch">'
596: .$hidden_fields
597: .'<input type="hidden" name="phase" value="adv_search" />';
598:
599: $scrout .= '<fieldset>'."\n"
600: .'<legend>'.&mt('Display Options').'</legend>'."\n"
601: .&viewoptions()
602: .'</fieldset>';
603:
604: $scrout .= $advanced_buttons;
605:
606: $scrout .= &Apache::lonhtmlcommon::start_pick_box();
607:
1.200 www 608: my %fields=&Apache::lonmeta::fieldnames();
1.314 bisitz 609:
610: # Standard Metadata
611: $scrout .= &Apache::lonhtmlcommon::row_headline()
612: .'<h3>'.&mt("Standard $srchtype Metadata").'</h3>'
613: .&searchhelp()
614: .&Apache::lonhtmlcommon::row_closure();
1.208 matthew 615: my %related_word_search =
1.217 matthew 616: ('title' => 1,
617: 'author' => 0,
618: 'owner' => 0,
619: 'authorspace' => 0,
620: 'modifyinguser'=> 0,
621: 'keywords' => 1,
622: 'notes' => 1,
623: 'abstract' => 1,
624: 'standards'=> 1,
625: 'mime' => 1,
1.314 bisitz 626: 'subject' => 1,
1.208 matthew 627: );
1.209 matthew 628: #
1.246 albertel 629: foreach my $field ('title','author','subject','owner','authorspace',
1.314 bisitz 630: 'modifyinguser','keywords','notes','abstract',
631: 'standards','mime') {
632: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield($fields{$field}))
633: .&Apache::lonmeta::prettyinput($field,
1.243 albertel 634: $env{'form.'.$field},
1.208 matthew 635: $field,
636: 'advsearch',
1.314 bisitz 637: $related_word_search{$field},
638: '',
1.243 albertel 639: $env{'form.'.$field.'_related'},
1.208 matthew 640: 50);
641: if ($related_word_search{$field}) {
1.289 bisitz 642: $scrout .= &mt('related words');
1.208 matthew 643: } else {
1.314 bisitz 644: $scrout .= '';
1.208 matthew 645: }
1.314 bisitz 646: $scrout .= &Apache::lonhtmlcommon::row_closure();
1.208 matthew 647: }
648: foreach my $field ('lowestgradelevel','highestgradelevel') {
1.314 bisitz 649: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield($fields{$field}))
650: .&Apache::lonmeta::prettyinput($field,
1.243 albertel 651: $env{'form.'.$field},
1.208 matthew 652: $field,
653: 'advsearch',
1.314 bisitz 654: 0)
655: .&Apache::lonhtmlcommon::row_closure();
1.200 www 656: }
1.314 bisitz 657:
658: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt('MIME Type Category')))
659: .&Apache::loncommon::filecategoryselect('category',
660: $env{'form.category'})
661: .&Apache::lonhtmlcommon::row_closure();
662:
663: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt('Domains')))
664: .&Apache::loncommon::domain_select('domains',
665: $env{'form.domains'},1)
666: .&Apache::lonhtmlcommon::row_closure();
667:
1.217 matthew 668: # Misc metadata
1.276 raeburn 669: if ($env{'form.area'} ne 'portfolio') {
1.314 bisitz 670: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt('Copyright/Distribution')))
671: .&Apache::lonmeta::selectbox('copyright',
1.276 raeburn 672: $env{'form.copyright'},
673: \&Apache::loncommon::copyrightdescription,
674: ( undef,
675: &Apache::loncommon::copyrightids)
1.314 bisitz 676: )
677: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 678: }
1.314 bisitz 679:
680: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt('Language')))
681: .&Apache::lonmeta::selectbox('language',
1.243 albertel 682: $env{'form.language'},
1.217 matthew 683: \&Apache::loncommon::languagedescription,
684: ('any',&Apache::loncommon::languageids)
1.314 bisitz 685: )
686: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 687:
1.314 bisitz 688: # Portfolio Metadata
1.276 raeburn 689: if ($env{'form.area'} eq 'portfolio') {
690: # Added fields
1.279 raeburn 691: my $curnumadd = $env{'form.numaddedfields'};
692: if ($curnumadd eq '') {
693: $curnumadd = 1;
694: }
1.314 bisitz 695: $scrout .= &Apache::lonhtmlcommon::row_headline()
696: .'<h3>'.&mt('Custom Metadata fields').'</h3>'
697: .&Apache::lonhtmlcommon::row_closure()
698: .&Apache::lonhtmlcommon::row_title('')
699: .&mt('Field Name').' | '.&mt('Field Value(s)')
700: .&Apache::lonhtmlcommon::row_closure();
1.279 raeburn 701:
702: for (my $j=0; $j<$curnumadd; $j++) {
1.276 raeburn 703: my $num = $j+1;
1.314 bisitz 704: $scrout .= &Apache::lonhtmlcommon::row_title(&mt('Custom metadata [_1]',$num))
705: .'<input type="text"'
706: .' name="addedfield_'.$j.'" size="10"'
707: .' value="'.$env{'form.addedfield_'.$j}.'" />'
708: .' '
709: .'<input type="text" '
710: .'name="addedvalues_'.$j.'" size="15"'
711: .' value="'.$env{'form.addedvalues_'.$j}.'" />'
712: .&Apache::lonhtmlcommon::row_closure();
713: }
714: $scrout .= &Apache::lonhtmlcommon::row_title('')
715: .'<label>'
716: .'<input type="checkbox" name="newfield"'
717: .' value="1" onclick="javascript:additional_metadata()" />'
718: .&mt('Another custom field/value pair?').'</label>'
719: .'<input type="hidden" name="numaddedfields"'
720: .' value="'.$curnumadd.'" />'
721: .&Apache::lonhtmlcommon::row_closure();
722: } else {
1.276 raeburn 723: #
724: # Dynamic metadata
1.314 bisitz 725: $scrout .= &Apache::lonhtmlcommon::row_headline()
726: .'<h3>'.&mt('Problem Statistics').'</h3>'
727: .&Apache::lonhtmlcommon::row_closure();
728: $scrout .= &Apache::lonhtmlcommon::row_title('')
729: .&mt('Minimum').' | '.&mt('Maximum')
730: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 731: foreach my $statistic
732: ({ name=>'count',
733: description=>'Network-wide number of accesses (hits)',},
734: { name=>'stdno',
735: description=>
1.285 www 736: 'Statistics calculated for number of students',},
1.276 raeburn 737: { name => 'avetries',
738: description=>'Average number of tries till solved',},
739: { name => 'difficulty',
740: description=>'Degree of difficulty',},
741: { name => 'disc',
742: description=>'Degree of discrimination'}) {
1.314 bisitz 743: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt($statistic->{'description'})))
744: .'<input type="text" name="'.$statistic->{'name'}
745: .'_min" value="" size="6" />'
746: .' '
747: .'<input type="text" name="'.$statistic->{'name'}
748: .'_max" value="" size="6" />'
749: .&Apache::lonhtmlcommon::row_closure();
750: }
751:
752: $scrout .= &Apache::lonhtmlcommon::row_headline()
753: .'<h3>'.&mt('Evaluation Data').'</h3>'
754: .&Apache::lonhtmlcommon::row_closure();
755: $scrout .= &Apache::lonhtmlcommon::row_title('')
756: .&mt('Minimum').' | '.&mt('Maximum')
757: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 758: foreach my $evaluation
759: ( { name => 'clear',
760: description => 'Material presented in clear way'},
761: { name =>'depth',
762: description => 'Material covered with sufficient depth'},
763: { name => 'helpful',
764: description => 'Material is helpful'},
765: { name => 'correct',
766: description => 'Material appears to be correct'},
767: { name => 'technical',
768: description => 'Resource is technically correct'}){
1.314 bisitz 769: $scrout .= &Apache::lonhtmlcommon::row_title(&titlefield(&mt($evaluation->{'description'})))
770: .'<input type="text" name="'
771: .$evaluation->{'name'}.'_min" value="" size="6" />'
772: .' '
773: .'<input type="text" name="'
774: .$evaluation->{'name'}.'_max" value="" size="6" />'
775: .&Apache::lonhtmlcommon::row_closure();
1.276 raeburn 776: }
1.217 matthew 777: }
1.216 matthew 778: #
779: # Creation/Modification date limits
1.314 bisitz 780: $scrout .= &Apache::lonhtmlcommon::row_headline()
781: .'<h3>'.&mt('Creation and Modification dates').'</h3>'
782: .&Apache::lonhtmlcommon::row_closure();
783: $scrout .= &Apache::lonhtmlcommon::row_title('')
784: .&mt('Month[_1]Day[_2]Year',' 'x14,' 'x6)
785: .&Apache::lonhtmlcommon::row_closure();
786:
1.216 matthew 787: my $cafter =
788: &Apache::lonhtmlcommon::date_setter('advsearch', # formname
789: 'creationdate1', # fieldname
790: 0, # current value
791: '', # special
792: 1, # includeempty
793: '', # state
794: 1, # no_hh_mm_ss
795: );
796: my $cbefore =
797: &Apache::lonhtmlcommon::date_setter('advsearch', # formname
798: 'creationdate2', # fieldname
799: 0, # current value
800: '', # special
801: 1, # includeempty
802: '', # state
803: 1, # no_hh_mm_ss
804: );
1.314 bisitz 805: $scrout .= &Apache::lonhtmlcommon::row_title(&mt('Created between'))
806: .$cafter
807: .&Apache::lonhtmlcommon::row_closure(1)
808: .&Apache::lonhtmlcommon::row_title(&mt('and'))
809: .$cbefore
810: .&Apache::lonhtmlcommon::row_closure();
811:
1.216 matthew 812: my $lafter =
813: &Apache::lonhtmlcommon::date_setter('advsearch',
814: 'revisiondate1',
815: 0, # current value
816: '', # special
817: 1, # includeempty
818: '', # state
819: 1, # no_hh_mm_ss
820: );
821: my $lbefore =
822: &Apache::lonhtmlcommon::date_setter('advsearch',
823: 'revisiondate2',
824: 0, # current value
825: '', # special
826: 1, # includeempty
827: '', # state
828: 1, # no_hh_mm_ss
829: );
1.314 bisitz 830: $scrout .= &Apache::lonhtmlcommon::row_title(&mt('Last modified between'))
831: .$lafter
832: .&Apache::lonhtmlcommon::row_closure(1)
833: .&Apache::lonhtmlcommon::row_title(&mt('and'))
834: .$lbefore
835: .&Apache::lonhtmlcommon::row_closure(1); # Last row of total pick_box
836:
837: $scrout .= &Apache::lonhtmlcommon::end_pick_box();
838:
839: $scrout .= $advanced_buttons
840: .'</form>';
841:
1.256 albertel 842: $scrout .= &Apache::loncommon::end_page();
1.146 matthew 843: $r->print($scrout);
844: return;
1.124 matthew 845: }
1.204 matthew 846:
1.200 www 847: ######################################################################
848: ######################################################################
849:
850: =pod
851:
1.204 matthew 852: =item &titlefield()
1.200 www 853:
854: Inputs: title text
855:
856: Outputs: titletext with font wrapper
857:
858: =cut
859:
860: ######################################################################
861: ######################################################################
862: sub titlefield {
863: my $title=shift;
1.208 matthew 864: return $title;
1.200 www 865: }
1.204 matthew 866:
1.200 www 867: ######################################################################
868: ######################################################################
869:
870: =pod
871:
1.204 matthew 872: =item viewoptiontext()
1.200 www 873:
874: Inputs: codename for view option
875:
876: Outputs: displayed text
877:
878: =cut
879:
880: ######################################################################
881: ######################################################################
882: sub viewoptiontext {
883: my $code=shift;
1.204 matthew 884: my %desc=&Apache::lonlocal::texthash
885: ('detailed' => "Detailed Citation View",
886: 'xml' => 'XML/SGML',
887: 'compact' => 'Compact View',
888: 'fielded' => 'Fielded Format',
1.255 www 889: 'summary' => 'Summary View',
890: 'summarypreview' => 'Summary Preview',
891: 'detailedpreview' => 'Detailed Citation Preview');
1.200 www 892: return $desc{$code};
893: }
1.204 matthew 894:
895: ######################################################################
1.200 www 896: ######################################################################
897:
898: =pod
899:
1.204 matthew 900: =item viewoptions()
1.200 www 901:
902: Inputs: none
903:
904: Outputs: text for box with view options
905:
906: =cut
907:
908: ######################################################################
909: ######################################################################
910: sub viewoptions {
1.313 bisitz 911: my $scrout;
1.243 albertel 912: if (! defined($env{'form.viewselect'})) {
913: $env{'form.viewselect'}='detailed';
1.208 matthew 914: }
1.313 bisitz 915: $scrout .= '<span class="LC_nobreak">'
916: .&mt('Type:').' '
917: .&Apache::lonmeta::selectbox('viewselect',
918: $env{'form.viewselect'},
919: \&viewoptiontext,
920: sort(keys(%Views)))
921: .'</span>';
1.214 matthew 922: my $countselect = &Apache::lonmeta::selectbox('show',
1.243 albertel 923: $env{'form.show'},
1.214 matthew 924: undef,
925: (10,20,50,100,1000,10000));
1.313 bisitz 926: $scrout .= ' <span class="LC_nobreak">'
927: .&mt('Records per Page:').' '.$countselect
1.301 bisitz 928: .'</span>'.$/;
1.200 www 929: return $scrout;
1.201 www 930: }
931:
932: ######################################################################
1.204 matthew 933: ######################################################################
1.201 www 934:
935: =pod
936:
1.204 matthew 937: =item searchhelp()
1.201 www 938:
939: Inputs: none
940:
941: Outputs: return little blurb on how to enter searches
942:
943: =cut
944:
945: ######################################################################
946: ######################################################################
947: sub searchhelp {
1.228 matthew 948: return &mt('Enter words and quoted phrases');
1.200 www 949: }
1.8 harris41 950:
1.121 matthew 951: ######################################################################
952: ######################################################################
953:
954: =pod
955:
1.204 matthew 956: =item &get_persistent_form_data()
1.145 matthew 957:
1.146 matthew 958: Inputs: filename of database
959:
960: Outputs: returns undef on database errors.
961:
962: This function is the reverse of &make_persistent() for form data.
1.145 matthew 963: Retrieve persistent data from %persistent_db. Retrieved items will have their
1.243 albertel 964: values unescaped. If a form value already exists in $env, it will not be
1.146 matthew 965: overwritten. Form values that are array references may have values appended
966: to them.
1.145 matthew 967:
968: =cut
969:
970: ######################################################################
971: ######################################################################
1.146 matthew 972: sub get_persistent_form_data {
973: my $filename = shift;
1.147 matthew 974: return 0 if (! -e $filename);
1.146 matthew 975: return undef if (! tie(%persistent_db,'GDBM_File',$filename,
1.148 matthew 976: &GDBM_READER(),0640));
1.146 matthew 977: #
978: # These make sure we do not get array references printed out as 'values'.
1.161 matthew 979: my %arrays_allowed = ('form.domains'=>1);
1.146 matthew 980: #
981: # Loop through the keys, looking for 'form.'
982: foreach my $name (keys(%persistent_db)) {
983: next if ($name !~ /^form./);
1.182 matthew 984: # Kludgification begins!
985: if ($name eq 'form.domains' &&
1.243 albertel 986: $env{'form.searchmode'} eq 'basic' &&
987: $env{'form.phase'} ne 'disp_basic') {
1.182 matthew 988: next;
989: }
990: # End kludge (hopefully)
1.243 albertel 991: next if (exists($env{$name}));
1.146 matthew 992: my @values = map {
1.265 www 993: &unescape($_);
1.146 matthew 994: } split(',',$persistent_db{$name});
995: next if (@values <1);
1.152 matthew 996: if ($arrays_allowed{$name}) {
1.243 albertel 997: $env{$name} = [@values];
1.146 matthew 998: } else {
1.243 albertel 999: $env{$name} = $values[0] if ($values[0]);
1.146 matthew 1000: }
1001: }
1002: untie (%persistent_db);
1003: return 1;
1004: }
1.181 matthew 1005:
1.146 matthew 1006: ######################################################################
1007: ######################################################################
1008:
1009: =pod
1010:
1.204 matthew 1011: =item &get_persistent_data()
1.146 matthew 1012:
1013: Inputs: filename of database, ref to array of values to recover.
1014:
1015: Outputs: array of values. Returns undef on error.
1016:
1017: This function is the reverse of &make_persistent();
1018: Retrieve persistent data from %persistent_db. Retrieved items will have their
1.336 raeburn 1019: values unescaped. If the item is 'domains; then the returned
1020: value will be a hash pointer. Otherwise, if the item contains
1.338 raeburn 1021: commas (before unescaping), the returned value will be an array pointer.
1.146 matthew 1022:
1023: =cut
1024:
1025: ######################################################################
1026: ######################################################################
1027: sub get_persistent_data {
1028: my $filename = shift;
1029: my @Vars = @{shift()};
1030: my @Values; # Return array
1031: return undef if (! -e $filename);
1032: return undef if (! tie(%persistent_db,'GDBM_File',$filename,
1.148 matthew 1033: &GDBM_READER(),0640));
1.146 matthew 1034: foreach my $name (@Vars) {
1035: if (! exists($persistent_db{$name})) {
1036: push @Values, undef;
1037: next;
1038: }
1.336 raeburn 1039: if ($name eq 'domains') {
1040: my %valueshash;
1041: my @items= map { &unescape($_); } split(',',$persistent_db{$name});
1042: foreach my $item (@items) {
1043: if ($item =~ /=/) {
1044: my ($key,$val) = map { &unescape($_); } split(/=/,$item);
1045: $valueshash{$key} = $val;
1046: }
1047: }
1048: push(@Values,\%valueshash);
1.145 matthew 1049: } else {
1.336 raeburn 1050: my @values = map {
1051: &unescape($_);
1052: } split(',',$persistent_db{$name});
1053: if (@values <= 1) {
1054: push @Values,$values[0];
1055: } else {
1056: push @Values,\@values;
1057: }
1.145 matthew 1058: }
1059: }
1.146 matthew 1060: untie (%persistent_db);
1061: return @Values;
1.145 matthew 1062: }
1063:
1064: ######################################################################
1065: ######################################################################
1066:
1067: =pod
1068:
1.121 matthew 1069: =item &make_persistent()
1070:
1.146 matthew 1071: Inputs: Hash of values to save, filename of persistent database.
1072:
1073: Store variables away to the %persistent_db.
1.145 matthew 1074: Values will be escaped. Values that are array pointers will have their
1.336 raeburn 1075: elements escaped and concatenated in a comma separated string. Values
1076: that are hash pointers will have their keys and values escaped and
1.338 raeburn 1077: concatenated in a comma separated string.
1.122 matthew 1078:
1.121 matthew 1079: =cut
1080:
1081: ######################################################################
1082: ######################################################################
1.98 harris41 1083: sub make_persistent {
1.133 matthew 1084: my %save = %{shift()};
1.146 matthew 1085: my $filename = shift;
1086: return undef if (! tie(%persistent_db,'GDBM_File',
1.148 matthew 1087: $filename,&GDBM_WRCREAT(),0640));
1.146 matthew 1088: foreach my $name (keys(%save)) {
1.336 raeburn 1089: my @values=();
1090: if (ref($save{$name}) eq 'ARRAY') {
1091: @values = @{$save{$name}};
1092: } elsif (ref($save{$name}) eq 'HASH') {
1093: foreach my $key (%{$save{$name}}) {
1094: push(@values,&escape($key).'='.&escape($save{$name}{$key}));
1095: }
1096: } else {
1097: @values = $save{$name};
1098: }
1099: # We handle array and hash references, but not recursively.
1.265 www 1100: my $store = join(',', map { &escape($_); } @values );
1.145 matthew 1101: $persistent_db{$name} = $store;
1.109 harris41 1102: }
1.146 matthew 1103: untie(%persistent_db);
1104: return 1;
1105: }
1106:
1107: ######################################################################
1108: ######################################################################
1109:
1110: =pod
1111:
1112: =item &make_form_data_persistent()
1113:
1114: Inputs: filename of persistent database.
1115:
1116: Store most form variables away to the %persistent_db.
1117: Values will be escaped. Values that are array pointers will have their
1.205 www 1118: elements escaped and concatenated in a comma separated string.
1.146 matthew 1119:
1120: =cut
1121:
1122: ######################################################################
1123: ######################################################################
1124: sub make_form_data_persistent {
1125: my $r = shift;
1126: my $filename = shift;
1127: my %save;
1.243 albertel 1128: foreach (keys(%env)) {
1.150 matthew 1129: next if (!/^form/ || /submit/);
1.243 albertel 1130: $save{$_} = $env{$_};
1.146 matthew 1131: }
1.152 matthew 1132: return &make_persistent(\%save,$filename);
1.98 harris41 1133: }
1134:
1.122 matthew 1135: ######################################################################
1136: ######################################################################
1137:
1138: =pod
1139:
1.134 matthew 1140: =item &parse_advanced_search()
1141:
1142: Parse advanced search form and return the following:
1143:
1144: =over 4
1145:
1146: =item $query Scalar containing an SQL query.
1.126 matthew 1147:
1.134 matthew 1148: =item $customquery Scalar containing a custom query.
1149:
1150: =item $customshow Scalar containing commands to show custom metadata.
1151:
1152: =item $libraries_to_query Reference to array of domains to search.
1153:
1154: =back
1.122 matthew 1155:
1156: =cut
1157:
1158: ######################################################################
1159: ######################################################################
1.134 matthew 1160: sub parse_advanced_search {
1.196 matthew 1161: my ($r,$closebutton,$hidden_fields)=@_;
1.216 matthew 1162: my @BasicFields = ('title','author','subject','keywords','url','version',
1.227 matthew 1163: 'notes','abstract','extension','owner','authorspace',
1.216 matthew 1164: # 'custommetadata','customshow',
1165: 'modifyinguser','standards','mime');
1.222 matthew 1166: my @StatsFields = &statfields();
1167: my @EvalFields = &evalfields();
1.32 harris41 1168: my $fillflag=0;
1.230 matthew 1169: my $pretty_search_string = "";
1.64 harris41 1170: # Clean up fields for safety
1.216 matthew 1171: for my $field (@BasicFields,
1172: 'creationdatestart_month','creationdatestart_day',
1.64 harris41 1173: 'creationdatestart_year','creationdateend_month',
1174: 'creationdateend_day','creationdateend_year',
1175: 'lastrevisiondatestart_month','lastrevisiondatestart_day',
1176: 'lastrevisiondatestart_year','lastrevisiondateend_month',
1.216 matthew 1177: 'lastrevisiondateend_day','lastrevisiondateend_year') {
1.300 raeburn 1178: $env{'form.'.$field}=~s/[^\w\/\s\(\)\=\-\"\'.\*]//g;
1.64 harris41 1179: }
1.117 matthew 1180: foreach ('mode','form','element') {
1181: # is this required? Hmmm.
1.243 albertel 1182: next if (! exists($env{'form.'.$_}));
1.265 www 1183: $env{'form.'.$_}=&unescape($env{'form.'.$_});
1.243 albertel 1184: $env{'form.'.$_}=~s/[^\w\/\s\(\)\=\-\"\']//g;
1.117 matthew 1185: }
1.131 matthew 1186: # Preprocess the category form element.
1.243 albertel 1187: $env{'form.category'} = 'any' if (! defined($env{'form.category'}) ||
1188: ref($env{'form.category'}));
1.161 matthew 1189: #
1.90 harris41 1190: # Check to see if enough information was filled in
1.222 matthew 1191: foreach my $field (@BasicFields) {
1.243 albertel 1192: if (&filled($env{'form.'.$field})) {
1.32 harris41 1193: $fillflag++;
1194: }
1195: }
1.222 matthew 1196: foreach my $field (@StatsFields,@EvalFields) {
1.243 albertel 1197: if (&filled($env{'form.'.$field.'_max'})) {
1.222 matthew 1198: $fillflag++;
1199: }
1.243 albertel 1200: if (&filled($env{'form.'.$field.'_min'})) {
1.222 matthew 1201: $fillflag++;
1202: }
1203: }
1204:
1.216 matthew 1205: for my $field ('lowestgradelevel','highestgradelevel') {
1.243 albertel 1206: if ( $env{'form.'.$field} =~ /^\d+$/ &&
1207: $env{'form.'.$field} > 0) {
1.216 matthew 1208: $fillflag++;
1209: }
1210: }
1.279 raeburn 1211: if ($env{'form.area'} eq 'portfolio') {
1212: # Added metadata fields
1213: for (my $i=0; $i<$env{'form.numaddedfields'} ; $i++) {
1214: my $field = $env{'form.addedfield_'.$i};
1215: $field =~ s/^\s*(\S*)\s*$/$1/;
1216: $field =~ s/\W/_/g;
1217: if ($field ne '') {
1218: $fillflag++;
1219: }
1220: }
1221: }
1.212 matthew 1222: if (! $fillflag) {
1.204 matthew 1223: &output_blank_field_error($r,$closebutton,
1224: 'phase=disp_adv',$hidden_fields);
1.134 matthew 1225: return ;
1.32 harris41 1226: }
1.90 harris41 1227: # Turn the form input into a SQL-based query
1.39 harris41 1228: my $query='';
1.45 harris41 1229: my @queries;
1.143 matthew 1230: my $font = '<font color="#800000" face="helvetica">';
1.90 harris41 1231: # Evaluate logical expression AND/OR/NOT phrase fields.
1.216 matthew 1232: foreach my $field (@BasicFields) {
1.243 albertel 1233: next if (!defined($env{'form.'.$field}) || $env{'form.'.$field} eq '');
1.228 matthew 1234: my ($error,$SQLQuery) =
1.243 albertel 1235: &process_phrase_input($env{'form.'.$field},
1236: $env{'form.'.$field.'_related'},$field);
1.228 matthew 1237: if (defined($error)) {
1238: &output_unparsed_phrase_error($r,$closebutton,'phase=disp_adv',
1239: $hidden_fields,$field);
1240: return;
1241: } else {
1242: $pretty_search_string .=
1.243 albertel 1243: $font.$field.'</font>: '.$env{'form.'.$field};
1244: if ($env{'form.'.$field.'_related'}) {
1.228 matthew 1245: my @Words =
1246: &Apache::loncommon::get_related_words
1.243 albertel 1247: ($env{'form.'.$field});
1.228 matthew 1248: if (@Words) {
1249: $pretty_search_string.= ' with related words: '.
1250: join(', ',@Words[0..4]);
1.143 matthew 1251: } else {
1.228 matthew 1252: $pretty_search_string.= ' with related words.';
1.143 matthew 1253: }
1.142 matthew 1254: }
1.228 matthew 1255: $pretty_search_string .= '<br />';
1256: push (@queries,$SQLQuery);
1.131 matthew 1257: }
1.44 harris41 1258: }
1.161 matthew 1259: #
1260: # Make the 'mime' from 'form.category' and 'form.extension'
1261: #
1262: my $searchphrase;
1.243 albertel 1263: if (exists($env{'form.category'}) &&
1264: $env{'form.category'} !~ /^\s*$/ &&
1265: $env{'form.category'} ne 'any') {
1.161 matthew 1266: my @extensions = &Apache::loncommon::filecategorytypes
1.243 albertel 1267: ($env{'form.category'});
1.161 matthew 1268: if (scalar(@extensions) > 0) {
1269: $searchphrase = join(' OR ',@extensions);
1270: }
1271: }
1272: if (defined($searchphrase)) {
1.228 matthew 1273: my ($error,$SQLsearch) = &process_phrase_input($searchphrase,0,'mime');
1274: push @queries,$SQLsearch;
1.161 matthew 1275: $pretty_search_string .=$font.'mime</font> contains <b>'.
1276: $searchphrase.'</b><br />';
1.135 matthew 1277: }
1.204 matthew 1278: #
1.90 harris41 1279: # Evaluate option lists
1.243 albertel 1280: if ($env{'form.lowestgradelevel'} &&
1281: $env{'form.lowestgradelevel'} ne '0' &&
1282: $env{'form.lowestgradelevel'} =~ /^\d+$/) {
1.216 matthew 1283: push(@queries,
1.243 albertel 1284: '(lowestgradelevel>='.$env{'form.lowestgradelevel'}.')');
1.216 matthew 1285: $pretty_search_string.="lowestgradelevel>=".
1.243 albertel 1286: $env{'form.lowestgradelevel'}."<br />\n";
1.216 matthew 1287: }
1.243 albertel 1288: if ($env{'form.highestgradelevel'} &&
1289: $env{'form.highestgradelevel'} ne '0' &&
1290: $env{'form.highestgradelevel'} =~ /^\d+$/) {
1.216 matthew 1291: push(@queries,
1.243 albertel 1292: '(highestgradelevel<='.$env{'form.highestgradelevel'}.')');
1.216 matthew 1293: $pretty_search_string.="highestgradelevel<=".
1.243 albertel 1294: $env{'form.highestgradelevel'}."<br />\n";
1.216 matthew 1295: }
1.243 albertel 1296: if ($env{'form.language'} and $env{'form.language'} ne 'any') {
1297: push @queries,"(language like \"$env{'form.language'}\")";
1.143 matthew 1298: $pretty_search_string.=$font."language</font>= ".
1.243 albertel 1299: &Apache::loncommon::languagedescription($env{'form.language'}).
1.143 matthew 1300: "<br />\n";
1.58 harris41 1301: }
1.243 albertel 1302: if ($env{'form.copyright'} and $env{'form.copyright'} ne 'any') {
1303: push @queries,"(copyright like \"$env{'form.copyright'}\")";
1.143 matthew 1304: $pretty_search_string.=$font."copyright</font> = ".
1.243 albertel 1305: &Apache::loncommon::copyrightdescription($env{'form.copyright'}).
1.230 matthew 1306: "<br />\n";
1.58 harris41 1307: }
1.276 raeburn 1308: if ($env{'form.area'} eq 'portfolio') {
1309: #
1310: # Added metadata fields
1311: for (my $i=0; $i<$env{'form.numaddedfields'} ; $i++) {
1.279 raeburn 1312: my $field = $env{'form.addedfield_'.$i};
1313: $field =~ s/^\s*(\S*)\s*$/$1/;
1314: $field =~ s/\W/_/g;
1315: $field =~ tr/A-Z/a-z/;
1316: if ($field ne '') {
1317: my $value = $env{'form.addedvalues_'.$i};
1318: if ($value ne '') {
1.280 albertel 1319: $value =~ s/'/''/g; #' stupid emacs
1.279 raeburn 1320: my ($error,$query) =
1321: &process_phrase_input($value,0,'pf.value');
1322: if (!defined($error)) {
1323: push(@queries,"pf.field = '$field' AND $query");
1324: $pretty_search_string .=
1325: $font.$field.'</font>: '.
1326: $env{'form.addedvalues_'.$i}.'<br />';
1327: }
1328: } else {
1329: push(@queries,"pf.field = '$field' AND pf.value IS NULL");
1330: }
1.276 raeburn 1331: }
1332: }
1333: } else {
1334: #
1335: # Statistics
1336: foreach my $field (@StatsFields,@EvalFields) {
1337: my ($min,$max);
1338: if (exists($env{'form.'.$field.'_min'}) &&
1339: $env{'form.'.$field.'_min'} ne '') {
1340: $min = $env{'form.'.$field.'_min'};
1341: }
1342: if (exists($env{'form.'.$field.'_max'}) &&
1343: $env{'form.'.$field.'_max'} ne '') {
1344: $max = $env{'form.'.$field.'_max'};
1345: }
1346: next if (! defined($max) && ! defined($min));
1347: if (defined($min) && defined($max)) {
1348: ($min,$max) = sort {$a <=>$b} ($min,$max);
1349: }
1350: if (defined($min) && $min =~ /^(\d+\.\d+|\d+|\.\d+)$/) {
1351: push(@queries,'('.$field.'>'.$min.')');
1352: $pretty_search_string.=$font.$field.'</font>>'.$min.'<br />';
1353: }
1354: if (defined($max) && $max =~ /^(\d+\.\d+|\d+|\.\d+)$/) {
1355: push(@queries,'('.$field.'<'.$max.')');
1356: $pretty_search_string.=$font.$field.'</font><'.$max.'<br />';
1357: }
1.217 matthew 1358: }
1359: }
1360: #
1.90 harris41 1361: # Evaluate date windows
1.216 matthew 1362: my $cafter =
1363: &Apache::lonhtmlcommon::get_date_from_form('creationdate1');
1364: my $cbefore =
1365: &Apache::lonhtmlcommon::get_date_from_form('creationdate2');
1366: if ($cafter > $cbefore) {
1367: my $tmp = $cafter;
1368: $cafter = $cbefore;
1369: $cbefore = $tmp;
1370: }
1371: my $mafter =
1372: &Apache::lonhtmlcommon::get_date_from_form('revisiondate1');
1373: my $mbefore =
1374: &Apache::lonhtmlcommon::get_date_from_form('revisiondate2');
1375: if ($mafter > $mbefore) {
1376: my $tmp = $mafter;
1377: $mafter = $mbefore;
1378: $mbefore = $tmp;
1379: }
1380: my ($datequery,$error,$prettydate)=&build_date_queries($cafter,$cbefore,
1381: $mafter,$mbefore);
1382: if (defined($error)) {
1383: &output_date_error($r,$error,$closebutton,$hidden_fields);
1384: } elsif (defined($datequery)) {
1.143 matthew 1385: # Here is where you would set up pretty_search_string to output
1386: # date query information.
1.216 matthew 1387: $pretty_search_string .= '<br />'.$prettydate.'<br />';
1.60 harris41 1388: push @queries,$datequery;
1389: }
1.204 matthew 1390: #
1.90 harris41 1391: # Process form information for custom metadata querying
1.134 matthew 1392: my $customquery=undef;
1.204 matthew 1393: ##
1394: ## The custom metadata search was removed q long time ago mostly
1395: ## because I was unable to figureout exactly how it worked and could
1396: ## not imagine people actually using it. MH
1397: ##
1.243 albertel 1398: # if ($env{'form.custommetadata'}) {
1.204 matthew 1399: # $pretty_search_string .=$font."Custom Metadata Search</font>: <b>".
1.243 albertel 1400: # $env{'form.custommetadata'}."</b><br />\n";
1.204 matthew 1401: # $customquery=&build_custommetadata_query('custommetadata',
1.243 albertel 1402: # $env{'form.custommetadata'});
1.204 matthew 1403: # }
1.134 matthew 1404: my $customshow=undef;
1.243 albertel 1405: # if ($env{'form.customshow'}) {
1.204 matthew 1406: # $pretty_search_string .=$font."Custom Metadata Display</font>: <b>".
1.243 albertel 1407: # $env{'form.customshow'}."</b><br />\n";
1408: # $customshow=$env{'form.customshow'};
1.204 matthew 1409: # $customshow=~s/[^\w\s]//g;
1410: # my @fields=split(/\s+/,$customshow);
1411: # $customshow=join(" ",@fields);
1412: # }
1413: ##
1.132 matthew 1414: ## Deal with restrictions to given domains
1415: ##
1.336 raeburn 1416: my ($libraries_to_query,$pretty_domains_string,$domains_to_query) =
1417: &parse_domain_restrictions();
1.254 www 1418: if ($pretty_domains_string) {
1.251 www 1419: $pretty_search_string .= $pretty_domains_string."<br />\n";
1420: }
1.180 matthew 1421: #
1422: if (@queries) {
1.277 raeburn 1423: if ($env{'form.area'} eq 'portfolio') {
1.300 raeburn 1424: $query ="SELECT pm.*,pa.keynum,pa.scope FROM portfolio_metadata pm, portfolio_access pa, portfolio_addedfields pf WHERE (pm.url = pa.url AND pf.url = pm.url AND (pa.start < UTC_TIMESTAMP() AND (pa.end IS NULL OR pa.end > UTC_TIMESTAMP())) AND (".join(') AND (',@queries).'))';
1.277 raeburn 1425: } else {
1426: $query="SELECT * FROM metadata WHERE (".join(") AND (",@queries).')';
1427: }
1.180 matthew 1428: } elsif ($customquery) {
1429: $query = '';
1430: }
1.241 matthew 1431: #&Apache::lonnet::logthis('advanced query = '.$/.$query);
1.180 matthew 1432: return ($query,$customquery,$customshow,$libraries_to_query,
1.336 raeburn 1433: $pretty_search_string,$domains_to_query);
1.180 matthew 1434: }
1435:
1436: sub parse_domain_restrictions {
1.132 matthew 1437: my $libraries_to_query = undef;
1.336 raeburn 1438: my $domains_to_query = undef;
1.243 albertel 1439: # $env{'form.domains'} can be either a scalar or an array reference.
1.132 matthew 1440: # We need an array.
1.243 albertel 1441: if (! exists($env{'form.domains'}) || $env{'form.domains'} eq '') {
1.240 matthew 1442: return (undef,'',undef);
1.180 matthew 1443: }
1.245 albertel 1444: my @allowed_domains = &Apache::loncommon::get_env_multiple('form.domains');
1.204 matthew 1445: #
1.132 matthew 1446: my %domain_hash = ();
1.143 matthew 1447: my $pretty_domains_string;
1.132 matthew 1448: foreach (@allowed_domains) {
1449: $domain_hash{$_}++;
1450: }
1.143 matthew 1451: if ($domain_hash{'any'}) {
1.273 www 1452: $pretty_domains_string = &mt("in all LON-CAPA domains.");
1.143 matthew 1453: } else {
1454: if (@allowed_domains > 1) {
1.273 www 1455: $pretty_domains_string = &mt("in LON-CAPA domains:");
1.143 matthew 1456: } else {
1.273 www 1457: $pretty_domains_string = &mt("in LON-CAPA domain ");
1.143 matthew 1458: }
1459: foreach (sort @allowed_domains) {
1.152 matthew 1460: $pretty_domains_string .= "<b>".$_."</b> ";
1.132 matthew 1461: }
1.336 raeburn 1462: my %library_servers = &Apache::lonnet::get_unique_servers(\@allowed_domains,
1463: 'library');
1464: my (%older_library_servers,%okdoms,%domains_for_id);
1465: map { $okdoms{$_} = 1; } @allowed_domains;
1466: foreach my $key (keys(%library_servers)) {
1467: if (&Apache::lonnet::get_server_loncaparev('',$key) =~ /^\'?(\d+)\.(\d+)/) {
1468: my $major = $1;
1469: my $minor = $2;
1470: if (($major < 2) || (($major == 2) && ($minor < 11))) {
1471: map { $older_library_servers{$_} = 1; }
1472: &Apache::lonnet::machine_ids($library_servers{$key});
1473: } else {
1474: my %possdoms;
1475: map { $possdoms{$_}=1 if ($okdoms{$_}); }
1476: &Apache::lonnet::machine_domains($library_servers{$key});
1477: $domains_for_id{$key} = join(',',sort(keys(%possdoms)));
1478: }
1479: }
1480: }
1481: my %servers = (%library_servers,%older_library_servers);
1.280 albertel 1482: $libraries_to_query = [keys(%servers)];
1.336 raeburn 1483: $domains_to_query = \%domains_for_id;
1.132 matthew 1484: }
1.239 matthew 1485: return ($libraries_to_query,
1.336 raeburn 1486: $pretty_domains_string,
1487: $domains_to_query);
1.18 harris41 1488: }
1489:
1.122 matthew 1490: ######################################################################
1491: ######################################################################
1492:
1493: =pod
1494:
1.134 matthew 1495: =item &parse_basic_search()
1.122 matthew 1496:
1.134 matthew 1497: Parse the basic search form and return a scalar containing an sql query.
1.126 matthew 1498:
1.122 matthew 1499: =cut
1500:
1501: ######################################################################
1502: ######################################################################
1.134 matthew 1503: sub parse_basic_search {
1.145 matthew 1504: my ($r,$closebutton)=@_;
1.204 matthew 1505: #
1.64 harris41 1506: # Clean up fields for safety
1507: for my $field ('basicexp') {
1.300 raeburn 1508: $env{"form.$field"}=~s/[^\w\s\'\"\!\(\)\-\*]//g;
1.64 harris41 1509: }
1.117 matthew 1510: foreach ('mode','form','element') {
1511: # is this required? Hmmm.
1.243 albertel 1512: next unless (exists($env{"form.$_"}));
1.265 www 1513: $env{"form.$_"}=&unescape($env{"form.$_"});
1.243 albertel 1514: $env{"form.$_"}=~s/[^\w\/\s\(\)\=\-\"\']//g;
1.117 matthew 1515: }
1.336 raeburn 1516: my ($libraries_to_query,$pretty_domains_string,$domains_to_query) =
1517: &parse_domain_restrictions();
1.204 matthew 1518: #
1519: # Check to see if enough of a query is filled in
1.243 albertel 1520: my $search_string = $env{'form.basicexp'};
1.220 matthew 1521: if (! &filled($search_string)) {
1.151 matthew 1522: &output_blank_field_error($r,$closebutton,'phase=disp_basic');
1.24 harris41 1523: return OK;
1524: }
1.228 matthew 1525: my $pretty_search_string=$search_string;
1.224 matthew 1526: my @Queries;
1.276 raeburn 1527: my @fields = ('title','author','subject','notes','abstract','keywords');
1528: my $searchfield;
1529: if ($env{'form.area'} eq 'portfolio') {
1530: $searchfield = 'concat_ws(" ",pm.'.join(',pm.',@fields).')';
1531: } else {
1532: $searchfield = 'concat_ws(" ",'.join(',',@fields).')';
1533: }
1.228 matthew 1534: my ($error,$SQLQuery) = &process_phrase_input($search_string,
1.243 albertel 1535: $env{'form.related'},
1.228 matthew 1536: $searchfield);
1537: if ($error) {
1538: &output_unparsed_phrase_error($r,$closebutton,'phase=disp_basic',
1539: '','basicexp');
1540: return;
1.141 matthew 1541: }
1.228 matthew 1542: push(@Queries,$SQLQuery);
1543: #foreach my $q (@Queries) {
1544: # &Apache::lonnet::logthis(' '.$q);
1545: #}
1.276 raeburn 1546: my $final_query;
1547: if ($env{'form.area'} eq 'portfolio') {
1.300 raeburn 1548: $final_query = 'SELECT pm.*,pa.keynum,pa.scope FROM portfolio_metadata pm, portfolio_access pa WHERE (pm.url = pa.url AND (pa.start < UTC_TIMESTAMP() AND (pa.end IS NULL OR pa.end > UTC_TIMESTAMP())) AND '.join(" AND ",@Queries).')';
1.276 raeburn 1549: } else {
1550: $final_query = 'SELECT * FROM metadata WHERE '.join(" AND ",@Queries);
1551: }
1.204 matthew 1552: #
1.273 www 1553: if ($env{'form.related'}) {
1554: $pretty_search_string.=' '.&mt('(including related words)');
1555: }
1.180 matthew 1556: if (defined($pretty_domains_string) && $pretty_domains_string ne '') {
1557: $pretty_search_string .= ' '.$pretty_domains_string;
1558: }
1.143 matthew 1559: $pretty_search_string .= "<br />\n";
1.225 matthew 1560: $pretty_search_string =~ s:^<br /> and ::;
1.276 raeburn 1561: &Apache::lonnet::logthis('simple search final query = '.$/.$final_query);
1.183 matthew 1562: return ($final_query,$pretty_search_string,
1.336 raeburn 1563: $libraries_to_query,$domains_to_query);
1.22 harris41 1564: }
1565:
1.228 matthew 1566:
1567: ###############################################################
1568: ###############################################################
1569:
1570: my @Phrases;
1571:
1572: sub concat {
1573: my ($item) = @_;
1574: my $results = '';
1575: foreach (@$item) {
1576: if (ref($_) eq 'ARRAY') {
1577: $results .= join(' ',@$_);
1578: }
1579: }
1580: return $results;
1581: }
1582:
1.224 matthew 1583: sub process_phrase_input {
1.228 matthew 1584: my ($phrase,$related,$field)=@_;
1585: #&Apache::lonnet::logthis('phrase = :'.$phrase.':');
1586: my $grammar = <<'ENDGRAMMAR';
1587: searchphrase:
1588: expression /^\Z/ {
1589: # &Apache::lonsearchcat::print_item(\@item,0);
1590: [@item];
1591: }
1592: expression:
1593: phrase(s) {
1594: [@item];
1595: }
1596: phrase:
1597: orword {
1598: [@item];
1599: }
1600: | andword {
1601: [@item];
1602: }
1603: | minusword {
1604: unshift(@::Phrases,$item[1]->[0]);
1605: unshift(@::Phrases,$item[1]->[1]);
1606: [@item];
1607: }
1608: | word {
1609: unshift(@::Phrases,$item[1]);
1610: [@item];
1611: }
1612: #
1613: orword:
1614: word 'OR' phrase {
1615: unshift(@::Phrases,'OR');
1616: unshift(@::Phrases,$item[1]);
1617: [@item];
1618: }
1619: | word 'or' phrase {
1620: unshift(@::Phrases,'OR');
1621: unshift(@::Phrases,$item[1]);
1622: [@item];
1623: }
1624: | minusword 'OR' phrase {
1625: unshift(@::Phrases,'OR');
1626: unshift(@::Phrases,$item[1]->[0]);
1627: unshift(@::Phrases,$item[1]->[1]);
1628: [@item];
1629: }
1630: | minusword 'or' phrase {
1631: unshift(@::Phrases,'OR');
1632: unshift(@::Phrases,$item[1]->[0]);
1633: unshift(@::Phrases,$item[1]->[1]);
1634: [@item];
1635: }
1636: andword:
1637: word phrase {
1638: unshift(@::Phrases,'AND');
1639: unshift(@::Phrases,$item[1]);
1640: [@item];
1641: }
1642: | minusword phrase {
1643: unshift(@::Phrases,'AND');
1644: unshift(@::Phrases,$item[1]->[0]);
1645: unshift(@::Phrases,$item[1]->[1]);
1646: [@item];
1647: }
1648: #
1649: minusword:
1650: '-' word {
1651: [$item[2],'NOT'];
1652: }
1653: word:
1654: "'" term(s) "'" {
1655: &Apache::lonsearchcat::concat(\@item);
1656: }
1657: | '"' term(s) '"' {
1658: &Apache::lonsearchcat::concat(\@item);
1659: }
1660: | term {
1661: $item[1];
1662: }
1663: term:
1.284 albertel 1664: /[\w\Q:!@#$%^&*()+_=|{}<>,.;\\\/?\E\-]+/ {
1.228 matthew 1665: $item[1];
1666: }
1667: ENDGRAMMAR
1668: #
1669: # The end result of parsing the phrase with the grammar is an array
1670: # @::Phrases.
1671: # $phrase = "gene splicing" or cat -> "gene splicing","OR","cat"
1672: # $phrase = "genetic engineering" -dna ->
1673: # "genetic engineering","AND","NOT","dna"
1674: # $phrase = cat or dog -poodle -> "cat","OR","dog","AND","NOT","poodle"
1675: undef(@::Phrases);
1676: my $p = new Parse::RecDescent($grammar);
1677: if (! defined($p->searchphrase($phrase))) {
1678: &Apache::lonnet::logthis('lonsearchcat:unable to process:'.$phrase);
1679: return 'Unable to process phrase '.$phrase;
1680: }
1681: #
1682: # Go through the phrases and make sense of them.
1683: # Apply modifiers NOT OR and AND to the phrases.
1684: my @NewPhrases;
1685: while(@::Phrases) {
1686: my $phrase = shift(@::Phrases);
1687: # &Apache::lonnet::logthis('phrase = '.$phrase);
1688: my $phrasedata;
1689: if ($phrase =~ /^(NOT|OR|AND)$/) {
1690: if ($phrase eq 'OR') {
1691: $phrasedata->{'or'}++;
1692: if (! @::Phrases) { $phrasedata = undef; last; }
1693: $phrase = shift(@::Phrases);
1694: } elsif ($phrase eq 'AND') {
1695: $phrasedata->{'and'}++;
1696: if (! @::Phrases) { $phrasedata = undef; last; }
1697: $phrase = shift(@::Phrases);
1.224 matthew 1698: }
1.228 matthew 1699: if ($phrase eq 'NOT') {
1700: $phrasedata->{'negate'}++;
1701: if (! @::Phrases) { $phrasedata = undef; last; }
1702: $phrase = shift(@::Phrases);
1.224 matthew 1703: }
1.228 matthew 1704: }
1705: $phrasedata->{'phrase'} = $phrase;
1706: if ($related) {
1707: my @NewWords;
1708: (undef,@NewWords) = &related_version($phrasedata->{'phrase'});
1709: $phrasedata->{'related_words'} = \@NewWords;
1710: }
1711: push(@NewPhrases,$phrasedata);
1712: }
1713: #
1714: # Actually build the sql query from the phrases
1715: my $SQLQuery;
1716: foreach my $phrase (@NewPhrases) {
1717: my $query;
1718: if ($phrase->{'negate'}) {
1719: $query .= $field.' NOT LIKE "%'.$phrase->{'phrase'}.'%"';
1.224 matthew 1720: } else {
1.228 matthew 1721: $query .= $field.' LIKE "%'.$phrase->{'phrase'}.'%"';
1722: }
1723: foreach my $related (@{$phrase->{'related_words'}}) {
1724: if ($phrase->{'negate'}) {
1725: $query .= ' AND '.$field.' NOT LIKE "%'.$related.'%"';
1726: } else {
1727: $query .= ' OR '.$field.' LIKE "%'.$related.'%"';
1728: }
1729: }
1730: if ($SQLQuery) {
1731: if ($phrase->{'or'}) {
1732: $SQLQuery .= ' OR ('.$query.')';
1733: } else {
1734: $SQLQuery .= ' AND ('.$query.')';
1.224 matthew 1735: }
1.228 matthew 1736: } else {
1737: $SQLQuery = '('.$query.')';
1.224 matthew 1738: }
1739: }
1740: #
1.228 matthew 1741: # &Apache::lonnet::logthis("SQLQuery = $SQLQuery");
1.224 matthew 1742: #
1.228 matthew 1743: return undef,$SQLQuery;
1.224 matthew 1744: }
1745:
1.122 matthew 1746: ######################################################################
1747: ######################################################################
1748:
1749: =pod
1750:
1.204 matthew 1751: =item &related_version()
1.142 matthew 1752:
1753: Modifies an input string to include related words. Words in the string
1754: are replaced with parenthesized lists of 'OR'd words. For example
1755: "torque" is replaced with "(torque OR word1 OR word2 OR ...)".
1756:
1757: Note: Using this twice on a string is probably silly.
1758:
1759: =cut
1760:
1761: ######################################################################
1762: ######################################################################
1763: sub related_version {
1.224 matthew 1764: my ($word) = @_;
1765: return (undef) if (lc($word) =~ /\b(or|and|not)\b/);
1766: my @Words = &Apache::loncommon::get_related_words($word);
1767: # Only use 4 related words
1768: @Words = ($#Words>4? @Words[0..4] : @Words);
1769: my $result = join " OR ", ($word,@Words);
1770: return $result,sort(@Words);
1.142 matthew 1771: }
1772:
1.98 harris41 1773:
1.122 matthew 1774: ######################################################################
1775: ######################################################################
1776:
1777: =pod
1778:
1779: =item &build_custommetadata_query()
1780:
1.126 matthew 1781: Constructs a custom metadata query using a rather heinous regular
1782: expression.
1783:
1.122 matthew 1784: =cut
1785:
1786: ######################################################################
1787: ######################################################################
1.98 harris41 1788: sub build_custommetadata_query {
1789: my ($field_name,$logic_statement)=@_;
1790: my $q=new Text::Query('abc',
1791: -parse => 'Text::Query::ParseAdvanced',
1792: -build => 'Text::Query::BuildAdvancedString');
1793: $q->prepare($logic_statement);
1794: my $matchexp=${$q}{'-parse'}{'-build'}{'matchstring'};
1795: # quick fix to change literal into xml tag-matching
1796: # will eventually have to write a separate builder module
1.122 matthew 1797: # wordone=wordtwo becomes\<wordone\>[^\<] *wordtwo[^\<]*\<\/wordone\>
1798: $matchexp =~ s/(\w+)\\=([\w\\\+]+)?# wordone=wordtwo is changed to
1799: /\\<$1\\>?# \<wordone\>
1800: \[\^\\<\]?# [^\<]
1801: \*$2\[\^\\<\]?# *wordtwo[^\<]
1802: \*\\<\\\/$1\\>?# *\<\/wordone\>
1803: /g;
1.98 harris41 1804: return $matchexp;
1805: }
1806:
1.22 harris41 1807:
1.122 matthew 1808: ######################################################################
1809: ######################################################################
1810:
1811: =pod
1812:
1813: =item &build_date_queries()
1814:
1.126 matthew 1815: Builds a SQL logic query to check time/date entries.
1816: Also reports errors (check for /^Incorrect/).
1817:
1.122 matthew 1818: =cut
1819:
1820: ######################################################################
1821: ######################################################################
1.98 harris41 1822: sub build_date_queries {
1.216 matthew 1823: my ($cafter,$cbefore,$mafter,$mbefore) = @_;
1824: my ($result,$error,$pretty_string);
1825: #
1826: # Verify the input
1827: if (! defined($cafter) && ! defined($cbefore) &&
1828: ! defined($mafter) && ! defined($mbefore)) {
1829: # This is an okay situation, so return undef for the error
1830: return (undef,undef,undef);
1831: }
1832: if ((defined($cafter) && ! defined($cbefore)) ||
1833: (defined($cbefore) && ! defined($cafter))) {
1834: # This is bad, so let them know
1.333 raeburn 1835: $error = &mt('Incorrect entry for the creation date. '.
1.216 matthew 1836: 'You must specify both the beginning and ending dates.');
1837: }
1838: if (! defined($error) &&
1839: ((defined($mafter) && ! defined($mbefore)) ||
1840: (defined($mbefore) && ! defined($mafter)))) {
1841: # This is also bad, so let them know
1.333 raeburn 1842: $error = &mt('Incorrect entry for the last revision date. '.
1.216 matthew 1843: 'You must specify both the beginning and ending dates.');
1.98 harris41 1844: }
1.216 matthew 1845: if (! defined($error)) {
1846: #
1847: # Build the queries
1848: my @queries;
1849: if (defined($cbefore) && defined($cafter)) {
1850: my (undef,undef,undef,$caday,$camon,$cayear) = localtime($cafter);
1851: my (undef,undef,undef,$cbday,$cbmon,$cbyear) = localtime($cbefore);
1852: # Correct for year being relative to 1900
1853: $cayear+=1900; $cbyear+=1900;
1854: my $cquery=
1855: '(creationdate BETWEEN '.
1856: "'".$cayear.'-'.$camon.'-'.$caday."'".
1857: ' AND '.
1858: "'".$cbyear.'-'.$cbmon.'-'.$cbday." 23:59:59')";
1859: $pretty_string .= '<br />' if (defined($pretty_string));
1860: $pretty_string .=
1861: &mt('created between [_1] and [_2]',
1862: &Apache::lonlocal::locallocaltime($cafter),
1863: &Apache::lonlocal::locallocaltime($cbefore+24*60*60-1));
1864: push(@queries,$cquery);
1865: $pretty_string =~ s/ 00:00:00//g;
1866: }
1867: if (defined($mbefore) && defined($mafter)) {
1868: my (undef,undef,undef,$maday,$mamon,$mayear) = localtime($mafter);
1869: my (undef,undef,undef,$mbday,$mbmon,$mbyear) = localtime($mbefore);
1870: # Correct for year being relative to 1900
1871: $mayear+=1900; $mbyear+=1900;
1872: my $mquery=
1873: '(lastrevisiondate BETWEEN '.
1874: "'".$mayear.'-'.$mamon.'-'.$maday."'".
1875: ' AND '.
1876: "'".$mbyear.'-'.$mbmon.'-'.$mbday." 23:59:59')";
1877: push(@queries,$mquery);
1878: $pretty_string .= '<br />' if (defined($pretty_string));
1879: $pretty_string .=
1880: &mt('last revised between [_1] and [_2]',
1881: &Apache::lonlocal::locallocaltime($mafter),
1882: &Apache::lonlocal::locallocaltime($mbefore+24*60*60-1));
1883: $pretty_string =~ s/ 00:00:00//g;
1884: }
1885: if (@queries) {
1886: $result .= join(" AND ",@queries);
1887: }
1.98 harris41 1888: }
1.216 matthew 1889: return ($result,$error,$pretty_string);
1.18 harris41 1890: }
1.6 harris41 1891:
1.122 matthew 1892: ######################################################################
1893: ######################################################################
1894:
1.144 matthew 1895: =pod
1896:
1897: =item ©right_check()
1898:
1.204 matthew 1899: Inputs: $Metadata, a hash pointer of metadata for a resource.
1900:
1901: Returns: 1 if the resource is available to the user making the query,
1902: 0 otherwise.
1903:
1.144 matthew 1904: =cut
1905:
1906: ######################################################################
1907: ######################################################################
1908: sub copyright_check {
1909: my $Metadata = shift;
1910: # Check copyright tags and skip results the user cannot use
1911: my (undef,undef,$resdom,$resname) = split('/',
1912: $Metadata->{'url'});
1913: # Check for priv
1914: if (($Metadata->{'copyright'} eq 'priv') &&
1.243 albertel 1915: (($env{'user.name'} ne $resname) &&
1916: ($env{'user.domain'} ne $resdom))) {
1.144 matthew 1917: return 0;
1918: }
1919: # Check for domain
1920: if (($Metadata->{'copyright'} eq 'domain') &&
1.243 albertel 1921: ($env{'user.domain'} ne $resdom)) {
1.144 matthew 1922: return 0;
1923: }
1.294 www 1924: # Check for custom rights
1925: if ($Metadata->{'copyright'} eq 'custom') {
1.296 raeburn 1926: return &Apache::lonnet::customaccess('bre',$Metadata->{'url'});
1.294 www 1927: }
1.144 matthew 1928: return 1;
1929: }
1930:
1.151 matthew 1931: ######################################################################
1932: ######################################################################
1933:
1934: =pod
1935:
1.204 matthew 1936: =item &ensure_db_and_table()
1.151 matthew 1937:
1938: Ensure we can get lonmysql to connect to the database and the table we
1939: need exists.
1940:
1941: Inputs: $r, table id
1942:
1943: Returns: undef on error, 1 if the table exists.
1944:
1945: =cut
1946:
1947: ######################################################################
1948: ######################################################################
1949: sub ensure_db_and_table {
1950: my ($r,$table) = @_;
1951: ##
1952: ## Sanity check the table id.
1953: ##
1954: if (! defined($table) || $table eq '' || $table =~ /\D/ ) {
1.334 bisitz 1955: $r->print(&Apache::loncommon::start_page('Error')
1.313 bisitz 1956: .'<p class="LC_error">'
1957: .&mt('Unable to retrieve search results. '
1958: .'Unable to determine the table results were saved in.')
1.334 bisitz 1959: .'</p>'
1960: . '<p>'.&mt('Internal info:').'</p>'
1961: .'<pre>'.$table.'</pre>'
1.313 bisitz 1962: .&Apache::loncommon::end_page()
1963: );
1.151 matthew 1964: return undef;
1965: }
1966: ##
1967: ## Make sure we can connect and the table exists.
1968: ##
1969: my $connection_result = &Apache::lonmysql::connect_to_db();
1970: if (!defined($connection_result)) {
1.332 bisitz 1971: $r->print(
1972: '<p class="LC_error">'
1973: .&mt('Unable to connect to the MySQL database where your results are saved.')
1974: .'</p>'
1975: .&Apache::loncommon::end_page()
1976: );
1.151 matthew 1977: &Apache::lonnet::logthis("lonsearchcat: unable to get lonmysql to".
1978: " connect to database.");
1979: &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
1980: return undef;
1981: }
1982: my $table_check = &Apache::lonmysql::check_table($table);
1983: if (! defined($table_check)) {
1.332 bisitz 1984: $r->print(
1985: '<p class="LC_error">'
1986: .&mt('A MySQL error has occurred.')
1987: .'</p></form>'
1988: .&Apache::loncommon::end_page());
1.151 matthew 1989: &Apache::lonnet::logthis("lonmysql was unable to determine the status".
1990: " of table ".$table);
1991: return undef;
1992: } elsif (! $table_check) {
1.332 bisitz 1993: $r->print(
1994: '<p class="LC_error">'
1995: .&mt('The table of results could not be found.')
1996: .'</p>'
1997: );
1.151 matthew 1998: &Apache::lonnet::logthis("The user requested a table, ".$table.
1999: ", that could not be found.");
2000: return undef;
2001: }
2002: return 1;
2003: }
2004:
2005: ######################################################################
2006: ######################################################################
2007:
2008: =pod
2009:
1.204 matthew 2010: =item &print_sort_form()
2011:
2012: The sort feature is not implemented at this time. This form just prints
2013: a link to change the search query.
1.151 matthew 2014:
2015: =cut
2016:
2017: ######################################################################
2018: ######################################################################
2019: sub print_sort_form {
2020: my ($r,$pretty_query_string) = @_;
1.224 matthew 2021:
1.151 matthew 2022: ##
1.187 www 2023: my %SortableFields=&Apache::lonlocal::texthash(
2024: id => 'Default',
1.151 matthew 2025: title => 'Title',
2026: author => 'Author',
2027: subject => 'Subject',
2028: url => 'URL',
2029: version => 'Version Number',
2030: mime => 'Mime type',
2031: lang => 'Language',
2032: owner => 'Owner/Publisher',
2033: copyright => 'Copyright',
2034: hostname => 'Host',
2035: creationdate => 'Creation Date',
1.187 www 2036: lastrevisiondate => 'Revision Date'
1.151 matthew 2037: );
2038: ##
1.243 albertel 2039: my $table = $env{'form.table'};
1.151 matthew 2040: return if (! &ensure_db_and_table($r,$table));
2041: ##
2042: ## Get the number of results
2043: ##
2044: my $total_results = &Apache::lonmysql::number_of_rows($table);
2045: if (! defined($total_results)) {
1.256 albertel 2046: $r->print("A MySQL error has occurred.</form>".
2047: &Apache::loncommon::end_page());
1.151 matthew 2048: &Apache::lonnet::logthis("lonmysql was unable to determine the number".
2049: " of rows in table ".$table);
2050: &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
2051: return;
2052: }
1.257 albertel 2053: my $js =<<END;
2054: <script type="text/javascript">
1.313 bisitz 2055: // <![CDATA[
1.151 matthew 2056: function change_sort() {
2057: var newloc = "/adm/searchcat?phase=results";
1.323 bisitz 2058: newloc += "&persistent_db_id=$env{'form.persistent_db_id'}";
2059: newloc += "&sortby=";
1.151 matthew 2060: newloc += document.forms.statusform.elements.sortby.value;
2061: parent.resultsframe.location= newloc;
2062: }
1.313 bisitz 2063: // ]]>
1.151 matthew 2064: </script>
1.257 albertel 2065: END
2066:
1.307 bisitz 2067: my $start_page = &Apache::loncommon::start_page('Results',$js);
1.257 albertel 2068: my $breadcrumbs=
1.263 albertel 2069: &Apache::lonhtmlcommon::breadcrumbs('Searching','Searching',
1.267 www 2070: $env{'form.catalogmode'} ne 'import');
1.257 albertel 2071:
2072: my $result = <<END;
2073: $start_page
2074: $breadcrumbs
1.267 www 2075: <form name="statusform" action="" method="post" target="_top">
1.268 www 2076: <input type="hidden" name="catalogmode" value="import" />
1.270 www 2077: <input type="hidden" name="acts" value="" />
1.151 matthew 2078: END
2079:
2080: #<h2>Sort Results</h2>
2081: #Sort by: <select size="1" name="sortby" onchange="javascript:change_sort();">
1.243 albertel 2082: # $env{'form.sortby'} = 'id' if (! defined($env{'form.sortby'}));
1.151 matthew 2083: # foreach (keys(%SortableFields)) {
2084: # $result.="<option name=\"$_\"";
1.243 albertel 2085: # if ($_ eq $env{'form.sortby'}) {
1.151 matthew 2086: # $result.=" selected ";
2087: # }
2088: # $result.=" >$SortableFields{$_}</option>\n";
2089: # }
2090: # $result.="</select>\n";
2091: my $revise = &revise_button();
1.289 bisitz 2092: $result.='<p>'
1.337 raeburn 2093: .&mt('Total of [quant,_1,match,matches] to your query.',$total_results)
1.289 bisitz 2094: .' '.$revise.'</p>'
2095: .'<p>'.&mt('Search: ').$pretty_query_string
2096: .'</p></form>';
1.256 albertel 2097: $r->print($result.&Apache::loncommon::end_page());
1.151 matthew 2098: return;
2099: }
2100:
1.144 matthew 2101: #####################################################################
2102: #####################################################################
2103:
2104: =pod
2105:
2106: =item MySQL Table Description
2107:
2108: MySQL table creation requires a precise description of the data to be
2109: stored. The use of the correct types to hold data is vital to efficient
2110: storage and quick retrieval of records. The columns must be described in
2111: the following format:
2112:
2113: =cut
2114:
1.170 matthew 2115: #####################################################################
2116: #####################################################################
1.204 matthew 2117: #
2118: # These should probably be scoped but I don't have time right now...
2119: #
2120: my @Datatypes;
2121: my @Fullindicies;
1.147 matthew 2122:
1.144 matthew 2123: ######################################################################
2124: ######################################################################
2125:
2126: =pod
2127:
1.146 matthew 2128: =item &create_results_table()
2129:
2130: Creates the table of search results by calling lonmysql. Stores the
1.243 albertel 2131: table id in $env{'form.table'}
1.146 matthew 2132:
1.276 raeburn 2133: Inputs: search area - either res or portfolio
1.146 matthew 2134:
2135: Returns: the identifier of the table on success, undef on error.
2136:
2137: =cut
2138:
2139: ######################################################################
2140: ######################################################################
1.204 matthew 2141: sub set_up_table_structure {
1.276 raeburn 2142: my ($tabletype) = @_;
1.204 matthew 2143: my ($datatypes,$fullindicies) =
1.276 raeburn 2144: &LONCAPA::lonmetadata::describe_metadata_storage($tabletype);
1.212 matthew 2145: # Copy the table description before modifying it...
2146: @Datatypes = @{$datatypes};
2147: unshift(@Datatypes,{name => 'id',
1.204 matthew 2148: type => 'MEDIUMINT',
2149: restrictions => 'UNSIGNED NOT NULL',
2150: primary_key => 'yes',
2151: auto_inc => 'yes' });
2152: @Fullindicies = @{$fullindicies};
2153: return;
2154: }
2155:
1.146 matthew 2156: sub create_results_table {
1.276 raeburn 2157: my ($area) = @_;
2158: if ($area eq 'portfolio') {
2159: &set_up_table_structure('portfolio_search');
2160: } else {
2161: &set_up_table_structure('metadata');
2162: }
1.146 matthew 2163: my $table = &Apache::lonmysql::create_table
1.170 matthew 2164: ( { columns => \@Datatypes,
1.172 matthew 2165: FULLTEXT => [{'columns' => \@Fullindicies},],
1.146 matthew 2166: } );
2167: if (defined($table)) {
1.243 albertel 2168: $env{'form.table'} = $table;
1.146 matthew 2169: return $table;
2170: }
2171: return undef; # Error...
2172: }
1.148 matthew 2173:
1.146 matthew 2174: ######################################################################
2175: ######################################################################
2176:
2177: =pod
2178:
1.150 matthew 2179: =item Search Status update functions
1.144 matthew 2180:
1.150 matthew 2181: Each of the following functions changes the values of one of the
2182: input fields used to display the search status to the user. The names
2183: should be explanatory.
1.144 matthew 2184:
1.150 matthew 2185: Inputs: Apache request handler ($r), text to display.
1.148 matthew 2186:
1.150 matthew 2187: Returns: Nothing.
1.148 matthew 2188:
2189: =over 4
2190:
2191: =item &update_count_status()
2192:
1.150 matthew 2193: =item &update_status()
1.148 matthew 2194:
1.150 matthew 2195: =item &update_seconds()
1.148 matthew 2196:
2197: =back
2198:
2199: =cut
2200:
2201: ######################################################################
2202: ######################################################################
2203: sub update_count_status {
2204: my ($r,$text) = @_;
2205: $text =~ s/\'/\\\'/g;
1.313 bisitz 2206: $r->print(<<SCRIPT);
2207: <script type="text/javascript">
2208: // <![CDATA[
2209: document.statusform.count.value = ' $text'
2210: // ]]>
2211: </script>
2212: SCRIPT
2213:
1.148 matthew 2214: $r->rflush();
2215: }
2216:
1.150 matthew 2217: sub update_status {
1.148 matthew 2218: my ($r,$text) = @_;
2219: $text =~ s/\'/\\\'/g;
1.313 bisitz 2220: $r->print(<<SCRIPT);
2221: <script type="text/javascript">
2222: // <![CDATA[
2223: document.statusform.status.value = ' $text'
2224: // ]]>
2225: </script>
2226: SCRIPT
2227:
1.148 matthew 2228: $r->rflush();
2229: }
2230:
1.214 matthew 2231: {
1.250 www 2232: my $max_time = 300; # seconds for the search to complete
1.214 matthew 2233: my $start_time = 0;
2234: my $last_time = 0;
2235:
2236: sub reset_timing {
2237: $start_time = 0;
2238: $last_time = 0;
2239: }
2240:
2241: sub time_left {
2242: if ($start_time == 0) {
2243: $start_time = time;
2244: }
2245: my $time_left = $max_time - (time - $start_time);
2246: $time_left = 0 if ($time_left < 0);
2247: return $time_left;
2248: }
2249:
1.150 matthew 2250: sub update_seconds {
1.214 matthew 2251: my ($r) = @_;
2252: my $time = &time_left();
2253: if (($last_time-$time) > 0) {
1.313 bisitz 2254: $r->print(<<SCRIPT);
2255: <script type="text/javascript">
2256: // <![CDATA[
2257: document.statusform.seconds.value = '$time'
2258: // ]]>
2259: </script>
2260: SCRIPT
2261:
1.214 matthew 2262: $r->rflush();
2263: }
2264: $last_time = $time;
2265: }
2266:
1.148 matthew 2267: }
2268:
2269: ######################################################################
2270: ######################################################################
2271:
2272: =pod
2273:
1.204 matthew 2274: =item &revise_button()
1.151 matthew 2275:
2276: Inputs: None
2277:
2278: Returns: html string for a 'revise search' button.
2279:
2280: =cut
2281:
2282: ######################################################################
2283: ######################################################################
2284: sub revise_button {
1.289 bisitz 2285: my $revisetext = &mt('Revise search');
1.151 matthew 2286: my $revise_phase = 'disp_basic';
1.243 albertel 2287: $revise_phase = 'disp_adv' if ($env{'form.searchmode'} eq 'advanced');
1.151 matthew 2288: my $newloc = '/adm/searchcat'.
1.243 albertel 2289: '?persistent_db_id='.$env{'form.persistent_db_id'}.
1.309 bisitz 2290: '&cleargroupsort=1'.
2291: '&phase='.$revise_phase;
1.289 bisitz 2292: my $result = qq{<input type="button" value="$revisetext" name="revise"} .
1.313 bisitz 2293: qq{ onclick="parent.location='$newloc';" /> };
1.151 matthew 2294: return $result;
2295: }
2296:
2297: ######################################################################
2298: ######################################################################
2299:
2300: =pod
2301:
1.204 matthew 2302: =item &run_search()
2303:
2304: Executes a search query by sending it the the other servers and putting the
2305: results into MySQL.
1.144 matthew 2306:
2307: =cut
2308:
2309: ######################################################################
2310: ######################################################################
2311: sub run_search {
1.276 raeburn 2312: my ($r,$query,$customquery,$customshow,$serverlist,
1.336 raeburn 2313: $pretty_string,$area,$domainsref) = @_;
1.276 raeburn 2314: my $tabletype = 'metadata';
2315: if ($area eq 'portfolio') {
2316: $tabletype = 'portfolio_search';
2317: }
1.150 matthew 2318: my $connection = $r->connection;
1.144 matthew 2319: #
1.146 matthew 2320: # Print run_search header
2321: #
1.307 bisitz 2322: my $start_page = &Apache::loncommon::start_page('Search Status',undef);
1.263 albertel 2323: my $breadcrumbs =
2324: &Apache::lonhtmlcommon::breadcrumbs('Searching','Searching',
1.267 www 2325: $env{'form.catalogmode'} ne 'import');
1.151 matthew 2326: $r->print(<<END);
1.257 albertel 2327: $start_page
2328: $breadcrumbs
1.151 matthew 2329: END
1.230 matthew 2330: # Remove leading and trailing <br />
2331: $pretty_string =~ s:^\s*<br />::i;
2332: $pretty_string =~ s:(<br />)*\s*$::im;
2333: my @Lines = split("<br />",$pretty_string);
2334: # I keep getting blank items at the end of the list, hence the following:
2335: while ($Lines[-1] =~ /^\s*$/ && @Lines) {
2336: pop(@Lines);
2337: }
1.152 matthew 2338: if (@Lines > 2) {
1.298 bisitz 2339: $pretty_string = join '<br />',(@Lines[0..2],'...<br />');
1.151 matthew 2340: }
1.214 matthew 2341: $r->print(&mt("Search: [_1]",$pretty_string));
1.146 matthew 2342: $r->rflush();
2343: #
1.145 matthew 2344: # Determine the servers we need to contact.
1.336 raeburn 2345: my (@Servers_to_contact,%domains_by_server);
1.144 matthew 2346: if (defined($serverlist)) {
1.152 matthew 2347: if (ref($serverlist) eq 'ARRAY') {
2348: @Servers_to_contact = @$serverlist;
2349: } else {
2350: @Servers_to_contact = ($serverlist);
2351: }
1.336 raeburn 2352: if (ref($domainsref) eq 'HASH') {
2353: foreach my $server (@Servers_to_contact) {
2354: $domains_by_server{$server} = $domainsref->{$server};
2355: }
2356: }
1.144 matthew 2357: } else {
1.336 raeburn 2358: my %library_servers = &Apache::lonnet::unique_library();
2359: my (%all_library_servers, %older_library_servers);
2360: foreach my $key (keys(%library_servers)) {
2361: if (&Apache::lonnet::get_server_loncaparev('',$key) =~ /^\'?(\d+)\.(\d+)/) {
2362: my $major = $1;
2363: my $minor = $2;
2364: if (($major < 2) || (($major == 2) && ($minor < 11))) {
1.338 raeburn 2365: map { $older_library_servers{$_} = 1; }
1.336 raeburn 2366: &Apache::lonnet::machine_ids($library_servers{$key});
2367: }
2368: }
2369: }
2370: %all_library_servers = (%library_servers,%older_library_servers);
1.281 albertel 2371: @Servers_to_contact = sort(keys(%all_library_servers));
1.336 raeburn 2372: foreach my $server (@Servers_to_contact) {
2373: my %possdoms;
2374: map { $possdoms{$_}=1; } &Apache::lonnet::machine_domains($all_library_servers{$server});
1.338 raeburn 2375: $domains_by_server{$server} =
1.336 raeburn 2376: join(',',sort(&Apache::lonnet::machine_domains($all_library_servers{$server})));
2377: }
1.144 matthew 2378: }
2379: my %Server_status;
1.214 matthew 2380: #
2381: # Check on the mysql table we will use to store results.
1.243 albertel 2382: my $table =$env{'form.table'};
1.150 matthew 2383: if (! defined($table) || $table eq '' || $table =~ /\D/ ) {
1.286 albertel 2384: $r->print("Unable to determine table id to save search results in.".
1.256 albertel 2385: "The search has been aborted.".
2386: &Apache::loncommon::end_page());
1.147 matthew 2387: return;
2388: }
2389: my $table_status = &Apache::lonmysql::check_table($table);
2390: if (! defined($table_status)) {
1.256 albertel 2391: $r->print("Unable to determine status of table.".
2392: &Apache::loncommon::end_page());
1.147 matthew 2393: &Apache::lonnet::logthis("Bogus table id of $table for ".
1.243 albertel 2394: "$env{'user.name'} @ $env{'user.domain'}");
1.147 matthew 2395: &Apache::lonnet::logthis("lonmysql error = ".
1.144 matthew 2396: &Apache::lonmysql::get_error());
1.147 matthew 2397: return;
2398: }
2399: if (! $table_status) {
1.204 matthew 2400: &Apache::lonnet::logthis("lonmysql error = ".
2401: &Apache::lonmysql::get_error());
2402: &Apache::lonnet::logthis("lonmysql debug = ".
2403: &Apache::lonmysql::get_debug());
2404: &Apache::lonnet::logthis('table status = "'.$table_status.'"');
1.147 matthew 2405: $r->print("The table id,$table, we tried to use is invalid.".
1.256 albertel 2406: "The search has been aborted.".
2407: &Apache::loncommon::end_page());
1.144 matthew 2408: return;
2409: }
1.145 matthew 2410: ##
1.146 matthew 2411: ## Prepare for the big loop.
1.144 matthew 2412: my $hitcountsum;
1.276 raeburn 2413: my %matches;
1.144 matthew 2414: my $server;
2415: my $status;
1.151 matthew 2416: my $revise = &revise_button();
1.299 raeburn 2417: $r->print('<form name="statusform" action="" method="post">'."\n".
2418: '<input type="hidden" name="acts" value="" />'."\n".
2419: '<table border="0"><tr><td>'."\n".
2420: &Apache::loncommon::start_data_table());
1.298 bisitz 2421: $r->print(&Apache::loncommon::start_data_table_header_row()
2422: .'<th>'.&mt('Status').'</th>'
2423: .'<th>'.&mt('Total Matches').'</th>'
2424: .'<th>'.&mt('Time Remaining').'</th>'
1.299 raeburn 2425: .&Apache::loncommon::end_data_table_header_row()
2426: .&Apache::loncommon::start_data_table_row()
1.298 bisitz 2427: .'<td><input type="text" name="status" value="" size="50" readonly="readonly" /></td>'
2428: .'<td><input type="text" name="count" value="" size="10" readonly="readonly" /></td>'
2429: .'<td><input type="text" name="seconds" value="" size="8" readonly="readonly" /></td>'
1.299 raeburn 2430: .&Apache::loncommon::end_data_table_row()
2431: .&Apache::loncommon::end_data_table()
2432: .'</td><td> </td><td>'.$revise.'</td></tr></table></form>');
1.148 matthew 2433: $r->rflush();
1.214 matthew 2434: &reset_timing();
2435: &update_seconds($r);
2436: &update_status($r,&mt('contacting [_1]',$Servers_to_contact[0]));
2437: while (&time_left() &&
1.144 matthew 2438: ((@Servers_to_contact) || keys(%Server_status))) {
1.214 matthew 2439: &update_seconds($r);
2440: #
2441: # Send out a search request
1.144 matthew 2442: if (@Servers_to_contact) {
2443: # Contact one server
2444: my $server = shift(@Servers_to_contact);
1.214 matthew 2445: &update_status($r,&mt('contacting [_1]',$server));
1.144 matthew 2446: my $reply=&Apache::lonnet::metadata_query($query,$customquery,
1.336 raeburn 2447: $customshow,[$server],\%domains_by_server);
1.144 matthew 2448: ($server) = keys(%$reply);
2449: $Server_status{$server} = $reply->{$server};
2450: } else {
1.150 matthew 2451: # wait a sec. to give time for files to be written
2452: # This sleep statement is here instead of outside the else
2453: # block because we do not want to pause if we have servers
2454: # left to contact.
1.183 matthew 2455: if (scalar (keys(%Server_status))) {
2456: &update_status($r,
1.214 matthew 2457: &mt('waiting on [_1]',join(' ',keys(%Server_status))));
1.183 matthew 2458: }
1.150 matthew 2459: sleep(1);
1.144 matthew 2460: }
1.159 matthew 2461: #
2462: # Loop through the servers we have contacted but do not
2463: # have results from yet, looking for results.
1.228 matthew 2464: foreach my $server (keys(%Server_status)) {
1.150 matthew 2465: last if ($connection->aborted());
1.214 matthew 2466: &update_seconds($r);
1.228 matthew 2467: my $status = $Server_status{$server};
1.144 matthew 2468: if ($status eq 'con_lost') {
2469: delete ($Server_status{$server});
2470: next;
2471: }
1.276 raeburn 2472: $status=~s|/||g;
1.330 foxr 2473:
2474:
2475:
2476: my $datafile=LONCAPA::tempdir().$status;
1.144 matthew 2477: if (-e $datafile && ! -e "$datafile.end") {
1.214 matthew 2478: &update_status($r,&mt('Receiving results from [_1]',$server));
1.144 matthew 2479: next;
2480: }
1.150 matthew 2481: last if ($connection->aborted());
1.144 matthew 2482: if (-e "$datafile.end") {
1.214 matthew 2483: &update_status($r,&mt('Reading results from [_1]',$server));
1.144 matthew 2484: if (-z "$datafile") {
2485: delete($Server_status{$server});
2486: next;
2487: }
2488: my $fh;
2489: if (!($fh=Apache::File->new($datafile))) {
1.146 matthew 2490: $r->print("Unable to open search results file for ".
1.145 matthew 2491: "server $server. Omitting from search");
1.150 matthew 2492: delete($Server_status{$server});
2493: next;
1.144 matthew 2494: }
2495: # Read in the whole file.
2496: while (my $result = <$fh>) {
1.150 matthew 2497: last if ($connection->aborted());
1.214 matthew 2498: #
2499: # Records are stored one per line
1.144 matthew 2500: chomp($result);
1.214 matthew 2501: next if (! $result);
2502: #
1.144 matthew 2503: # Parse the result.
1.276 raeburn 2504: my %Fields = &parse_raw_result($result,$server,$tabletype);
1.144 matthew 2505: $Fields{'hostname'} = $server;
1.214 matthew 2506: #
2507: # Skip based on copyright
1.144 matthew 2508: next if (! ©right_check(\%Fields));
1.248 www 2509:
1.276 raeburn 2510: if ($area eq 'portfolio') {
2511: next if (defined($matches{$Fields{'url'}}));
2512: # Skip if inaccessible
2513: next if (!&Apache::lonnet::portfolio_access($Fields{'url'}));
2514: $matches{$Fields{'url'}} = 1;
2515: }
1.214 matthew 2516: #
1.144 matthew 2517: # Store the result in the mysql database
2518: my $result = &Apache::lonmysql::store_row($table,\%Fields);
2519: if (! defined($result)) {
1.146 matthew 2520: $r->print(&Apache::lonmysql::get_error());
1.144 matthew 2521: }
1.214 matthew 2522: #
1.144 matthew 2523: $hitcountsum ++;
1.214 matthew 2524: &update_seconds($r);
1.150 matthew 2525: if ($hitcountsum % 50 == 0) {
2526: &update_count_status($r,$hitcountsum);
2527: }
1.214 matthew 2528: }
1.144 matthew 2529: $fh->close();
2530: # $server is only deleted if the results file has been
2531: # found and (successfully) opened. This may be a bad idea.
2532: delete($Server_status{$server});
2533: }
1.150 matthew 2534: last if ($connection->aborted());
1.148 matthew 2535: &update_count_status($r,$hitcountsum);
1.144 matthew 2536: }
1.150 matthew 2537: last if ($connection->aborted());
1.214 matthew 2538: &update_seconds($r);
1.144 matthew 2539: }
1.313 bisitz 2540: &update_status($r,&mt('Search Complete on Server [_1]',$server));
1.214 matthew 2541: &update_seconds($r);
1.204 matthew 2542: #
1.214 matthew 2543: &Apache::lonmysql::disconnect_from_db(); # This is unneccessary
1.204 matthew 2544: #
1.144 matthew 2545: # We have run out of time or run out of servers to talk to and
1.214 matthew 2546: # results to get, so let the client know the top frame needs to be
2547: # loaded from /adm/searchcat
1.256 albertel 2548: $r->print(&Apache::loncommon::end_page());
1.267 www 2549: # if ($env{'form.catalogmode'} ne 'import') {
1.313 bisitz 2550: $r->print(<<SCRIPT);
2551: <script>
2552: window.location='/adm/searchcat?phase=sort&persistent_db_id=$env{'form.persistent_db_id'}';
2553: </script>
2554: SCRIPT
1.224 matthew 2555: # }
1.144 matthew 2556: return;
2557: }
2558:
2559: ######################################################################
2560: ######################################################################
1.204 matthew 2561:
1.144 matthew 2562: =pod
2563:
1.204 matthew 2564: =item &prev_next_buttons()
2565:
2566: Returns html for the previous and next buttons on the search results page.
1.144 matthew 2567:
2568: =cut
2569:
2570: ######################################################################
2571: ######################################################################
1.146 matthew 2572: sub prev_next_buttons {
1.145 matthew 2573: my ($current_min,$show,$total,$parms) = @_;
2574: return '' if ($show eq 'all'); # No links if you get them all at once.
1.214 matthew 2575: #
1.223 matthew 2576: # Create buttons
1.313 bisitz 2577: return '<p class="LC_nobreak">'
2578: .'<input type="submit" name="prev" value="<"'
2579: .' title="'.&mt('Previous').'" />'
2580: .' '
2581: .'<input type="submit" name="reload" value="'.&mt('Reload').'" />'
2582: .' '
2583: .'<input type="submit" name="next" value=">"'
2584: .' title="'.&mt('Next').'" />'
2585: .'</p>';
1.144 matthew 2586: }
1.204 matthew 2587:
1.144 matthew 2588: ######################################################################
2589: ######################################################################
2590:
2591: =pod
2592:
1.204 matthew 2593: =item &display_results()
2594:
2595: Prints the results out for selection and perusal.
1.144 matthew 2596:
2597: =cut
2598:
2599: ######################################################################
2600: ######################################################################
2601: sub display_results {
1.276 raeburn 2602: my ($r,$importbutton,$closebutton,$diropendb,$area) = @_;
1.150 matthew 2603: my $connection = $r->connection;
2604: $r->print(&search_results_header($importbutton,$closebutton));
1.144 matthew 2605: ##
2606: ## Set viewing function
2607: ##
1.243 albertel 2608: my $viewfunction = $Views{$env{'form.viewselect'}};
1.144 matthew 2609: if (!defined($viewfunction)) {
1.312 bisitz 2610: $r->print('<p class="LC_error">'
2611: .&mt('Internal Error - Bad view selected.')
2612: .'</p>'."\n");
1.144 matthew 2613: $r->rflush();
2614: return;
2615: }
2616: ##
1.158 matthew 2617: ## $checkbox_num is a count of the number of checkboxes output on the
1.267 www 2618: ## page this is used only during catalogmode=import.
1.158 matthew 2619: my $checkbox_num = 0;
2620: ##
1.144 matthew 2621: ## Get the catalog controls setup
2622: ##
1.146 matthew 2623: my $action = "/adm/searchcat?phase=results";
2624: ##
1.267 www 2625: ## Deal with import by opening the import db file.
2626: if ($env{'form.catalogmode'} eq 'import') {
1.146 matthew 2627: if (! tie(%groupsearch_db,'GDBM_File',$diropendb,
1.148 matthew 2628: &GDBM_WRCREAT(),0640)) {
1.312 bisitz 2629: $r->print('<p class="LC_error">'.
2630: &mt('Unable to save import results.').
2631: '</p>'.
2632: '</form>'.
1.256 albertel 2633: &Apache::loncommon::end_page());
1.146 matthew 2634: $r->rflush();
2635: return;
2636: }
1.144 matthew 2637: }
1.145 matthew 2638: ##
2639: ## Prepare the table for querying
1.243 albertel 2640: my $table = $env{'form.table'};
1.151 matthew 2641: return if (! &ensure_db_and_table($r,$table));
1.145 matthew 2642: ##
2643: ## Get the number of results
2644: my $total_results = &Apache::lonmysql::number_of_rows($table);
2645: if (! defined($total_results)) {
1.312 bisitz 2646: $r->print('<p class="LC_error">'.
2647: &mt('A MySQL error has occurred.').
2648: '</p>'.
2649: '</form>'.
1.256 albertel 2650: &Apache::loncommon::end_page());
1.145 matthew 2651: &Apache::lonnet::logthis("lonmysql was unable to determine the number".
2652: " of rows in table ".$table);
2653: &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
2654: return;
2655: }
2656: ##
2657: ## Determine how many results we need to get
1.243 albertel 2658: $env{'form.start'} = 1 if (! exists($env{'form.start'}));
2659: $env{'form.show'} = 20 if (! exists($env{'form.show'}));
2660: if (exists($env{'form.prev'})) {
2661: $env{'form.start'} -= $env{'form.show'};
2662: } elsif (exists($env{'form.next'})) {
2663: $env{'form.start'} += $env{'form.show'};
2664: }
2665: $env{'form.start'} = 1 if ($env{'form.start'}<1);
2666: $env{'form.start'} = $total_results if ($env{'form.start'}>$total_results);
2667: my $min = $env{'form.start'};
1.145 matthew 2668: my $max;
1.243 albertel 2669: if ($env{'form.show'} eq 'all') {
1.145 matthew 2670: $max = $total_results ;
2671: } else {
1.243 albertel 2672: $max = $min + $env{'form.show'} - 1;
1.146 matthew 2673: $max = $total_results if ($max > $total_results);
1.145 matthew 2674: }
2675: ##
1.223 matthew 2676: ## Output form elements
2677: $r->print(&hidden_field('table').
2678: &hidden_field('phase').
2679: &hidden_field('persistent_db_id').
1.276 raeburn 2680: &hidden_field('start').
2681: &hidden_field('area')
1.223 matthew 2682: );
1.232 matthew 2683: #
2684: # Build sorting selector
1.241 matthew 2685: my @fields =
2686: (
2687: {key=>'default' },
2688: {key=>'title' },
2689: {key =>'author' },
2690: {key =>'subject'},
2691: {key =>'url',desc=>'URL'},
2692: {key =>'keywords'},
2693: {key =>'language'},
2694: {key =>'creationdate'},
2695: {key =>'lastrevisiondate'},
2696: {key =>'owner'},
2697: {key =>'copyright'},
2698: {key =>'authorspace'},
2699: {key =>'lowestgradelevel'},
2700: {key =>'highestgradelevel'},
2701: {key =>'standards',desc=>'Standards'},
1.276 raeburn 2702: );
2703: if ($area eq 'portfolio') {
2704: push(@fields,
2705: (
2706: {key => 'scope'},
2707: {key => 'keynum'},
2708: ));
2709: } else {
2710: push(@fields,
2711: (
1.241 matthew 2712: {key =>'count',desc=>'Number of accesses'},
2713: {key =>'stdno',desc=>'Students Attempting'},
2714: {key =>'avetries',desc=>'Average Number of Tries'},
2715: {key =>'difficulty',desc=>'Mean Degree of Difficulty'},
2716: {key =>'disc',desc=>'Mean Degree of Discrimination'},
2717: {key =>'clear',desc=>'Evaluation: Clear'},
2718: {key =>'technical',desc=>'Evaluation: Technically Correct'},
2719: {key =>'correct',desc=>'Evaluation: Material is Correct'},
2720: {key =>'helpful',desc=>'Evaluation: Material is Helpful'},
2721: {key =>'depth',desc=>'Evaluation: Material has Depth'},
1.276 raeburn 2722: ));
2723: }
1.241 matthew 2724: my %fieldnames = &Apache::lonmeta::fieldnames();
2725: my @field_order;
2726: foreach my $field_data (@fields) {
2727: push(@field_order,$field_data->{'key'});
2728: if (! exists($field_data->{'desc'})) {
2729: $field_data->{'desc'}=$fieldnames{$field_data->{'key'}};
2730: } else {
2731: if (! defined($field_data->{'desc'})) {
2732: $field_data->{'desc'} = ucfirst($field_data->{'key'});
2733: }
2734: $field_data->{'desc'} = &mt($field_data->{'desc'});
2735: }
2736: }
2737: my %sort_fields = map {$_->{'key'},$_->{'desc'}} @fields;
2738: $sort_fields{'select_form_order'} = \@field_order;
1.248 www 2739: $env{'form.sortorder'} = 'desc' if (! exists($env{'form.sortorder'}));
1.276 raeburn 2740: if (! exists($env{'form.sortfield'})) {
2741: if ($area eq 'portfolio') {
2742: $env{'form.sortfield'} = 'owner';
2743: } else {
2744: $env{'form.sortfield'} = 'count';
2745: }
2746: }
1.248 www 2747: if (! exists($env{'form.sortorder'})) {
2748: if ($env{'form.sortfield'}=~/^(count|stdno|disc|clear|technical|correct|helpful)$/) {
2749: $env{'form.sortorder'}='desc';
2750: } else {
2751: $env{'form.sortorder'}='asc';
2752: }
2753: }
1.313 bisitz 2754: my $sortform = '<span class="LC_nobreak">'
2755: .&mt('Sort by:').' '
2756: .&Apache::loncommon::select_form($env{'form.sortfield'},
1.232 matthew 2757: 'sortfield',
1.324 raeburn 2758: \%sort_fields)
1.313 bisitz 2759: .' '
2760: .&Apache::loncommon::select_form($env{'form.sortorder'},
1.241 matthew 2761: 'sortorder',
1.324 raeburn 2762: {asc =>&mt('Ascending'),
1.241 matthew 2763: desc=>&mt('Descending')
1.324 raeburn 2764: })
1.313 bisitz 2765: .'</span>';
1.223 matthew 2766: ##
1.313 bisitz 2767: ## Display links for 'prev' and 'next' pages (if necessary) and Display Options
2768: $r->print('<fieldset>'."\n"
2769: .'<legend>'.&mt('Display Options').'</legend>'."\n"
2770: .$sortform
2771: .' '
2772: .&viewoptions()
2773: .'</fieldset>'
2774: .&prev_next_buttons($min,$env{'form.show'},$total_results)
2775: );
2776:
1.150 matthew 2777: if ($total_results == 0) {
1.256 albertel 2778: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2" />'.
1.313 bisitz 2779: '<p class="LC_info">'.&mt('There are currently no results.').'</p>'.
1.256 albertel 2780: "</form>".
2781: &Apache::loncommon::end_page());
1.150 matthew 2782: return;
2783: } else {
1.312 bisitz 2784: $r->print('<div>'.
1.232 matthew 2785: mt('Results [_1] to [_2] out of [_3]',
2786: $min,$max,$total_results).
1.312 bisitz 2787: "</div>\n");
1.150 matthew 2788: }
1.145 matthew 2789: ##
2790: ## Get results from MySQL table
1.232 matthew 2791: my $sort_command = 'id>='.$min.' AND id<='.$max;
1.241 matthew 2792: my $order;
1.244 albertel 2793: if (exists($env{'form.sortorder'})) {
2794: if ($env{'form.sortorder'} eq 'asc') {
1.241 matthew 2795: $order = 'ASC';
1.244 albertel 2796: } elsif ($env{'form.sortorder'} eq 'desc') {
1.241 matthew 2797: $order = 'DESC';
2798: } else {
2799: $order = '';
2800: }
2801: } else {
2802: $order = '';
2803: }
1.244 albertel 2804: if ($env{'form.sortfield'} ne 'default' &&
2805: exists($sort_fields{$env{'form.sortfield'}})) {
2806: $sort_command = $env{'form.sortfield'}.' IS NOT NULL '.
2807: 'ORDER BY '.$env{'form.sortfield'}.' '.$order.
1.249 www 2808: ' LIMIT '.($min-1).','.($max-$min+1);
1.232 matthew 2809: }
2810: my @Results = &Apache::lonmysql::get_rows($table,$sort_command);
1.145 matthew 2811: ##
2812: ## Loop through the results and output them.
1.276 raeburn 2813: my $tabletype = 'metadata';
2814: if ($area eq 'portfolio') {
2815: $tabletype = 'portfolio_search';
2816: }
1.312 bisitz 2817: $r->print(&Apache::loncommon::start_data_table());
1.144 matthew 2818: foreach my $row (@Results) {
1.150 matthew 2819: if ($connection->aborted()) {
1.162 www 2820: &cleanup();
1.150 matthew 2821: return;
2822: }
1.276 raeburn 2823: my %Fields = %{&parse_row($tabletype,@$row)};
1.312 bisitz 2824: my $output;
1.210 matthew 2825: if (! defined($Fields{'title'}) || $Fields{'title'} eq '') {
2826: $Fields{'title'} = 'Untitled';
2827: }
1.158 matthew 2828: my $prefix=&catalogmode_output($Fields{'title'},$Fields{'url'},
2829: $Fields{'id'},$checkbox_num++);
1.144 matthew 2830: # Render the result into html
1.150 matthew 2831: $output.= &$viewfunction($prefix,%Fields);
1.145 matthew 2832: # Print them out as they come in.
1.312 bisitz 2833: $r->print(&Apache::loncommon::start_data_table_row()
2834: .'<td>'
2835: .$output
2836: .'</td>'
2837: .&Apache::loncommon::end_data_table_row()
2838: );
1.144 matthew 2839: $r->rflush();
2840: }
1.312 bisitz 2841: $r->print(&Apache::loncommon::end_data_table());
1.144 matthew 2842: if (@Results < 1) {
1.312 bisitz 2843: $r->print('<p class="LC_info">'
2844: .&mt('There were no results matching your query.')
2845: .'</p>');
1.147 matthew 2846: } else {
1.313 bisitz 2847: $r->print(
2848: &prev_next_buttons($min,$env{'form.show'},$total_results,
1.243 albertel 2849: "table=".$env{'form.table'}.
1.309 bisitz 2850: "&phase=results".
2851: "&persistent_db_id=".
1.243 albertel 2852: $env{'form.persistent_db_id'})
1.313 bisitz 2853: );
1.144 matthew 2854: }
1.256 albertel 2855: $r->print("</form>".&Apache::loncommon::end_page());
1.144 matthew 2856: $r->rflush();
1.150 matthew 2857: untie %groupsearch_db if (tied(%groupsearch_db));
1.144 matthew 2858: return;
2859: }
2860:
2861: ######################################################################
2862: ######################################################################
2863:
2864: =pod
2865:
1.158 matthew 2866: =item &catalogmode_output($title,$url,$fnum,$checkbox_num)
1.145 matthew 2867:
2868: Returns html needed for the various catalog modes. Gets inputs from
1.243 albertel 2869: $env{'form.catalogmode'}. Stores data in %groupsearch_db.
1.145 matthew 2870:
2871: =cut
2872:
2873: ######################################################################
2874: ######################################################################
2875: sub catalogmode_output {
2876: my $output = '';
1.158 matthew 2877: my ($title,$url,$fnum,$checkbox_num) = @_;
1.243 albertel 2878: if ($env{'form.catalogmode'} eq 'interactive') {
1.150 matthew 2879: $title=~ s/\'/\\\'/g;
1.243 albertel 2880: if ($env{'form.catalogmode'} eq 'interactive') {
1.145 matthew 2881: $output.=<<END
1.287 albertel 2882: <font size='-1'><input type="button" name="returnvalues" value="select"
1.313 bisitz 2883: onclick="javascript:select_data('$title','$url')" />
1.145 matthew 2884: </font>
2885: END
2886: }
1.267 www 2887: } elsif ($env{'form.catalogmode'} eq 'import') {
1.145 matthew 2888: $groupsearch_db{"pre_${fnum}_link"}=$url;
2889: $groupsearch_db{"pre_${fnum}_title"}=$title;
2890: $output.=<<END;
2891: <font size='-1'>
1.287 albertel 2892: <input type="checkbox" name="returnvalues" value="select"
1.313 bisitz 2893: onclick="javascript:queue($checkbox_num,$fnum)" />
1.145 matthew 2894: </font>
2895: END
2896: }
2897: return $output;
2898: }
2899: ######################################################################
2900: ######################################################################
2901:
2902: =pod
2903:
1.204 matthew 2904: =item &parse_row()
1.144 matthew 2905:
2906: Parse a row returned from the database.
2907:
2908: =cut
2909:
2910: ######################################################################
2911: ######################################################################
2912: sub parse_row {
1.276 raeburn 2913: my ($tabletype,@Row) = @_;
1.144 matthew 2914: my %Fields;
1.204 matthew 2915: if (! scalar(@Datatypes)) {
1.276 raeburn 2916: &set_up_table_structure($tabletype);
1.204 matthew 2917: }
1.144 matthew 2918: for (my $i=0;$i<=$#Row;$i++) {
1.265 www 2919: $Fields{$Datatypes[$i]->{'name'}}=&unescape($Row[$i]);
1.144 matthew 2920: }
2921: $Fields{'language'} =
1.198 www 2922: &Apache::loncommon::languagedescription($Fields{'language'});
1.144 matthew 2923: $Fields{'copyrighttag'} =
2924: &Apache::loncommon::copyrightdescription($Fields{'copyright'});
2925: $Fields{'mimetag'} =
2926: &Apache::loncommon::filedescription($Fields{'mime'});
2927: return \%Fields;
2928: }
1.126 matthew 2929:
2930: ###########################################################
2931: ###########################################################
2932:
2933: =pod
2934:
2935: =item &parse_raw_result()
2936:
2937: Takes a line from the file of results and parse it. Returns a hash
1.198 www 2938: with keys according to column labels
1.126 matthew 2939:
2940: In addition, the following tags are set by calling the appropriate
1.198 www 2941: lonnet function: 'language', 'copyrighttag', 'mimetag'.
1.126 matthew 2942:
2943: The 'title' field is set to "Untitled" if the title field is blank.
2944:
2945: 'abstract' and 'keywords' are truncated to 200 characters.
2946:
2947: =cut
2948:
2949: ###########################################################
2950: ###########################################################
2951: sub parse_raw_result {
1.276 raeburn 2952: my ($result,$hostname,$tabletype) = @_;
1.204 matthew 2953: # conclude from self to others regarding fields
1.206 matthew 2954: my %Fields=&LONCAPA::lonmetadata::metadata_col_to_hash
1.276 raeburn 2955: ($tabletype,
2956: map {
1.265 www 2957: &unescape($_);
1.276 raeburn 2958: } (split(/\,/,$result)) );
1.126 matthew 2959: return %Fields;
2960: }
2961:
2962: ###########################################################
2963: ###########################################################
2964:
2965: =pod
2966:
2967: =item &handle_custom_fields()
2968:
2969: =cut
2970:
2971: ###########################################################
2972: ###########################################################
2973: sub handle_custom_fields {
2974: my @results = @{shift()};
2975: my $customshow='';
2976: my $extrashow='';
2977: my @customfields;
1.243 albertel 2978: if ($env{'form.customshow'}) {
2979: $customshow=$env{'form.customshow'};
1.126 matthew 2980: $customshow=~s/[^\w\s]//g;
2981: my @fields=map {
2982: "<font color=\"#008000\">$_:</font><!-- $_ -->";
2983: } split(/\s+/,$customshow);
2984: @customfields=split(/\s+/,$customshow);
2985: if ($customshow) {
2986: $extrashow="<ul><li>".join("</li><li>",@fields)."</li></ul>\n";
2987: }
2988: }
2989: my $customdata='';
2990: my %customhash;
2991: foreach my $result (@results) {
2992: if ($result=~/^(custom\=.*)$/) { # grab all custom metadata
2993: my $tmp=$result;
2994: $tmp=~s/^custom\=//;
1.265 www 2995: my ($k,$v)=map {&unescape($_);
1.126 matthew 2996: } split(/\,/,$tmp);
2997: $customhash{$k}=$v;
2998: }
2999: }
3000: return ($extrashow,\@customfields,\%customhash);
1.41 harris41 3001: }
3002:
1.122 matthew 3003: ######################################################################
3004: ######################################################################
3005:
1.125 matthew 3006: =pod
3007:
1.204 matthew 3008: =item &search_results_header()
1.125 matthew 3009:
1.130 matthew 3010: Output the proper html headers and javascript code to deal with different
3011: calling modes.
3012:
1.243 albertel 3013: Takes most inputs directly from %env, except $mode.
1.130 matthew 3014:
3015: =over 4
3016:
3017: =item $mode is either (at this writing) 'Basic' or 'Advanced'
3018:
3019: =back
1.126 matthew 3020:
1.130 matthew 3021: The following environment variables are checked:
1.126 matthew 3022:
3023: =over 4
3024:
3025: =item 'form.catalogmode'
3026:
1.267 www 3027: Checked for 'interactive' and 'import'.
1.126 matthew 3028:
3029: =item 'form.mode'
3030:
3031: Checked for existance & 'edit' mode.
3032:
3033: =item 'form.form'
3034:
1.191 albertel 3035: Contains the name of the form that has the input fields to set
3036:
1.126 matthew 3037: =item 'form.element'
3038:
1.191 albertel 3039: the name of the input field to put the URL into
3040:
3041: =item 'form.titleelement'
3042:
3043: the name of the input field to put the title into
3044:
1.126 matthew 3045: =back
3046:
1.125 matthew 3047: =cut
3048:
3049: ######################################################################
3050: ######################################################################
3051: sub search_results_header {
1.150 matthew 3052: my ($importbutton,$closebutton) = @_;
1.256 albertel 3053:
1.257 albertel 3054: my $js;
1.125 matthew 3055: # output beginning of search page
3056: # conditional output of script functions dependent on the mode in
3057: # which the search was invoked
1.243 albertel 3058: if ($env{'form.catalogmode'} eq 'interactive'){
3059: if (! exists($env{'form.mode'}) || $env{'form.mode'} ne 'edit') {
1.257 albertel 3060: $js.=<<SCRIPT;
1.125 matthew 3061: <script type="text/javascript">
1.313 bisitz 3062: // <![CDATA[
1.125 matthew 3063: function select_data(title,url) {
3064: changeTitle(title);
3065: changeURL(url);
1.150 matthew 3066: parent.close();
1.125 matthew 3067: }
3068: function changeTitle(val) {
1.153 matthew 3069: if (parent.opener.inf.document.forms.resinfo.elements.t) {
3070: parent.opener.inf.document.forms.resinfo.elements.t.value=val;
1.125 matthew 3071: }
3072: }
3073: function changeURL(val) {
1.153 matthew 3074: if (parent.opener.inf.document.forms.resinfo.elements.u) {
3075: parent.opener.inf.document.forms.resinfo.elements.u.value=val;
1.125 matthew 3076: }
3077: }
1.313 bisitz 3078: // ]]>
1.125 matthew 3079: </script>
3080: SCRIPT
1.243 albertel 3081: } elsif ($env{'form.mode'} eq 'edit') {
3082: my $form = $env{'form.form'};
3083: my $element = $env{'form.element'};
3084: my $titleelement = $env{'form.titleelement'};
1.191 albertel 3085: my $changetitle;
3086: if (!$titleelement) {
3087: $changetitle='function changeTitle(val) {}';
3088: } else {
3089: $changetitle=<<END;
3090: function changeTitle(val) {
3091: if (parent.targetwin.document) {
3092: parent.targetwin.document.forms["$form"].elements["$titleelement"].value=val;
3093: } else {
3094: var url = 'forms[\"$form\"].elements[\"$titleelement\"].value';
3095: alert("Unable to transfer data to "+url);
3096: }
3097: }
3098: END
3099: }
3100:
1.257 albertel 3101: $js.=<<SCRIPT;
1.125 matthew 3102: <script type="text/javascript">
1.313 bisitz 3103: // <![CDATA[
1.125 matthew 3104: function select_data(title,url) {
3105: changeURL(url);
1.191 albertel 3106: changeTitle(title);
1.150 matthew 3107: parent.close();
1.125 matthew 3108: }
1.191 albertel 3109: $changetitle
1.125 matthew 3110: function changeURL(val) {
1.150 matthew 3111: if (parent.targetwin.document) {
3112: parent.targetwin.document.forms["$form"].elements["$element"].value=val;
1.125 matthew 3113: } else {
3114: var url = 'forms[\"$form\"].elements[\"$element\"].value';
3115: alert("Unable to transfer data to "+url);
3116: }
3117: }
1.313 bisitz 3118: // ]]>
1.125 matthew 3119: </script>
3120: SCRIPT
3121: }
3122: }
1.288 albertel 3123: my $inhibit_menu = "&".&Apache::loncommon::inhibit_menu_check();
1.267 www 3124: $js.=<<SCRIPT if $env{'form.catalogmode'} eq 'import';
1.125 matthew 3125: <script type="text/javascript">
1.313 bisitz 3126: // <![CDATA[
1.158 matthew 3127: function queue(checkbox_num,val) {
1.185 matthew 3128: if (document.forms.results.returnvalues.length != "undefined" &&
3129: typeof(document.forms.results.returnvalues.length) == "number") {
3130: if (document.forms.results.returnvalues[checkbox_num].checked) {
1.270 www 3131: parent.statusframe.document.forms.statusform.elements.acts.value +='1a'+val+'b';
1.185 matthew 3132: } else {
1.270 www 3133: parent.statusframe.document.forms.statusform.elements.acts.value +='0a'+val+'b';
1.185 matthew 3134: }
1.150 matthew 3135: } else {
1.185 matthew 3136: if (document.forms.results.returnvalues.checked) {
1.270 www 3137: parent.statusframe.document.forms.statusform.elements.acts.value +='1a'+val+'b';
1.185 matthew 3138: } else {
1.270 www 3139: parent.statusframe.document.forms.statusform.elements.acts.value +='0a'+val+'b';
1.185 matthew 3140: }
1.150 matthew 3141: }
1.125 matthew 3142: }
3143: function select_group() {
1.150 matthew 3144: parent.window.location=
1.323 bisitz 3145: "/adm/groupsort?mode=$env{'form.mode'}&catalogmode=import$inhibit_menu&acts="+
1.270 www 3146: parent.statusframe.document.forms.statusform.elements.acts.value;
1.125 matthew 3147: }
1.313 bisitz 3148: // ]]>
1.125 matthew 3149: </script>
3150: SCRIPT
1.256 albertel 3151:
1.257 albertel 3152: my $start_page = &Apache::loncommon::start_page(undef,$js,
1.331 www 3153: {'only_body' =>1,
1.340 raeburn 3154: 'add_wishlist' =>1,
3155: 'add_modal' =>1});
1.258 albertel 3156: my $result=<<END;
1.257 albertel 3157: $start_page
1.267 www 3158: <form name="results" method="post" action="/adm/searchcat">
1.150 matthew 3159: $importbutton
1.130 matthew 3160: END
1.125 matthew 3161: return $result;
3162: }
3163:
1.150 matthew 3164: sub results_link {
1.309 bisitz 3165: my $basic_link = "/adm/searchcat?"."&table=".$env{'form.table'}.
3166: "&persistent_db_id=".$env{'form.persistent_db_id'};
3167: my $results_link = $basic_link."&phase=results".
3168: "&pause=1"."&start=1";
1.150 matthew 3169: return $results_link;
3170: }
3171:
1.146 matthew 3172: ######################################################################
3173: ######################################################################
3174: sub print_frames_interface {
3175: my $r = shift;
1.309 bisitz 3176: my $basic_link = "/adm/searchcat?"."&table=".$env{'form.table'}.
3177: "&persistent_db_id=".$env{'form.persistent_db_id'};
3178: my $run_search_link = $basic_link."&phase=run_search";
1.150 matthew 3179: my $results_link = &results_link();
1.260 albertel 3180: my $js = <<JS;
3181: <script type="text/javascript">
1.313 bisitz 3182: // <![CDATA[
1.260 albertel 3183: var targetwin = opener;
3184: var queue = '';
1.313 bisitz 3185: // ]]>
1.260 albertel 3186: </script>
3187: JS
1.262 albertel 3188:
3189: my $start_page =
3190: &Apache::loncommon::start_page('LON-CAPA Digital Library Search Results',
3191: $js,
3192: {'frameset' => 1,
3193: 'add_entries' => {
3194: 'rows' => "150,*",},});
3195: my $end_page =
3196: &Apache::loncommon::end_page({'frameset' => 1});
3197:
1.146 matthew 3198: my $result = <<"ENDFRAMES";
1.262 albertel 3199: $start_page
1.146 matthew 3200: <frame name="statusframe" src="$run_search_link">
3201: <frame name="resultsframe" src="$results_link">
1.262 albertel 3202: $end_page
1.146 matthew 3203: ENDFRAMES
3204:
3205: $r->print($result);
3206: return;
3207: }
3208:
3209: ######################################################################
3210: ######################################################################
1.125 matthew 3211:
1.224 matthew 3212: sub has_stat_data {
3213: my ($values) = @_;
3214: if ( (defined($values->{'count'}) && $values->{'count'} ne '') ||
3215: (defined($values->{'stdno'}) && $values->{'stdno'} ne '') ||
3216: (defined($values->{'disc'}) && $values->{'disc'} ne '') ||
3217: (defined($values->{'avetries'}) && $values->{'avetries'} ne '') ||
3218: (defined($values->{'difficulty'}) && $values->{'difficulty'} ne '')) {
3219: return 1;
3220: }
3221: return 0;
3222: }
3223:
3224: sub statfields {
3225: return ('count','stdno','disc','avetries','difficulty');
3226: }
3227:
3228: sub has_eval_data {
3229: my ($values) = @_;
3230: if ( (defined($values->{'clear'}) && $values->{'clear'} ne '') ||
3231: (defined($values->{'technical'}) && $values->{'technical'} ne '') ||
3232: (defined($values->{'correct'}) && $values->{'correct'} ne '') ||
3233: (defined($values->{'helpful'}) && $values->{'helpful'} ne '') ||
3234: (defined($values->{'depth'}) && $values->{'depth'} ne '')) {
3235: return 1;
3236: }
3237: return 0;
3238: }
3239:
3240: sub evalfields {
3241: return ('clear','technical','correct','helpful','depth');
3242: }
3243:
3244: ######################################################################
3245: ######################################################################
3246:
1.332 bisitz 3247: sub display_tools {
3248: my ($title, $jumpurl) = @_;
3249: my $result;
3250: # Metadata
3251: $result.=
3252: &Apache::loncommon::modal_link(
3253: $jumpurl.'.meta?inhibitmenu=yes',
3254: '<img class="LC_icon" src="/res/adm/pages/catalog.png" alt="Info" />',
3255: 500,500,'_blank',undef,&mt('Metadata'));
3256: # Stored Links
3257: $result.=
3258: ' <a href="javascript:;"'.
3259: ' onclick="set_wishlistlink('."'$title','$jumpurl'".')" '.
3260: 'title="'.&mt('Save a link for this resource in your personal Stored Links repository').'">'.
3261: '<img class="LC_icon" src="/res/adm/pages/wishlist.png" '.
3262: 'alt="Stored Links" style="width:22px;"/></a>';
3263: return $result;
3264: }
3265:
3266: ######################################################################
3267: ######################################################################
3268:
1.122 matthew 3269: =pod
3270:
3271: =item Metadata Viewing Functions
3272:
3273: Output is a HTML-ified string.
1.204 matthew 3274:
1.122 matthew 3275: Input arguments are title, author, subject, url, keywords, version,
3276: notes, short abstract, mime, language, creation date,
1.126 matthew 3277: last revision date, owner, copyright, hostname, and
1.122 matthew 3278: extra custom metadata to show.
3279:
3280: =over 4
3281:
3282: =item &detailed_citation_view()
3283:
3284: =cut
3285:
3286: ######################################################################
3287: ######################################################################
1.50 harris41 3288: sub detailed_citation_view {
1.150 matthew 3289: my ($prefix,%values) = @_;
1.218 matthew 3290: my $result;
1.247 www 3291: my $jumpurl=$values{'url'};
1.275 albertel 3292: $jumpurl=~s|^/ext/|http://|;
1.332 bisitz 3293: $result .=
3294: '<b>'.$prefix.
1.312 bisitz 3295: '<img src="'.&Apache::loncommon::icon($values{'url'}).'" alt="" />'.' '.
1.288 albertel 3296: '<a href="'.$jumpurl.'?inhibitmenu=yes" '.
1.325 wenzelju 3297: 'target="preview">'.$values{'title'}."</a></b>\n".
1.332 bisitz 3298: &display_tools($values{'title'}, $jumpurl).
3299: "<p>\n".
3300: '<b>'.$values{'author'}.'</b>,'.
1.218 matthew 3301: ' <i>'.$values{'owner'}.'</i><br />';
3302: foreach my $field
3303: (
1.223 matthew 3304: { name=>'url',
3305: translate => '<b>URL:</b> [_1]',
3306: special => 'url link',},
1.218 matthew 3307: { name=>'subject',
3308: translate => '<b>Subject:</b> [_1]',},
3309: { name=>'keywords',
3310: translate => '<b>Keywords:</b> [_1]',},
3311: { name=>'notes',
3312: translate => '<b>Notes:</b> [_1]',},
3313: { name=>'mimetag',
3314: translate => '<b>MIME Type:</b> [_1]',},
3315: { name=>'standards',
3316: translate => '<b>Standards:</b>[_1]',},
3317: { name=>'copyrighttag',
3318: translate => '<b>Copyright/Distribution:</b> [_1]',},
1.223 matthew 3319: { name=>'count',
1.225 matthew 3320: format => "%d",
1.223 matthew 3321: translate => '<b>Access Count:</b> [_1]',},
1.218 matthew 3322: { name=>'stdno',
1.225 matthew 3323: format => "%d",
1.218 matthew 3324: translate => '<b>Number of Students:</b> [_1]',},
3325: { name=>'avetries',
1.225 matthew 3326: format => "%.2f",
1.218 matthew 3327: translate => '<b>Average Tries:</b> [_1]',},
3328: { name=>'disc',
1.225 matthew 3329: format => "%.2f",
1.218 matthew 3330: translate => '<b>Degree of Discrimination:</b> [_1]',},
3331: { name=>'difficulty',
1.225 matthew 3332: format => "%.2f",
1.218 matthew 3333: translate => '<b>Degree of Difficulty:</b> [_1]',},
3334: { name=>'clear',
1.225 matthew 3335: format => "%.2f",
1.218 matthew 3336: translate => '<b>Clear:</b> [_1]',},
3337: { name=>'depth',
1.225 matthew 3338: format => "%.2f",
1.218 matthew 3339: translate => '<b>Depth:</b> [_1]',},
3340: { name=>'helpful',
1.225 matthew 3341: format => "%.2f",
1.218 matthew 3342: translate => '<b>Helpful:</b> [_1]',},
3343: { name=>'correct',
1.225 matthew 3344: format => "%.2f",
1.224 matthew 3345: translate => '<b>Correct:</b> [_1]',},
1.218 matthew 3346: { name=>'technical',
1.225 matthew 3347: format => "%.2f",
1.218 matthew 3348: translate => '<b>Technical:</b> [_1]',},
1.225 matthew 3349: { name=>'comefrom_list',
3350: type => 'list',
3351: translate => 'Resources that lead up to this resource in maps',},
3352: { name=>'goto_list',
3353: type => 'list',
3354: translate => 'Resources that follow this resource in maps',},
1.226 matthew 3355: { name=>'sequsage_list',
1.225 matthew 3356: type => 'list',
3357: translate => 'Resources using or importing resource',},
1.218 matthew 3358: ) {
1.225 matthew 3359: next if (! exists($values{$field->{'name'}}) ||
3360: $values{$field->{'name'}} eq '');
3361: if (exists($field->{'type'}) && $field->{'type'} eq 'list') {
1.267 www 3362: $result .= '<b>'.&mt($field->{'translate'}).'</b>';
1.225 matthew 3363: foreach my $item (split(',',$values{$field->{'name'}})){
1.287 albertel 3364: $item = &Apache::lonnet::clutter($item);
1.319 bisitz 3365: $result .= '<br />'.&display_url($item,1).'<br />';
1.225 matthew 3366: }
3367: } elsif (exists($field->{'format'}) && $field->{'format'} ne ''){
3368: $result.= &mt($field->{'translate'},
3369: sprintf($field->{'format'},
1.230 matthew 3370: $values{$field->{'name'}}))."<br />\n";
1.225 matthew 3371: } else {
1.223 matthew 3372: if ($field->{'special'} eq 'url link') {
1.319 bisitz 3373: $result .= '<br />'.&display_url($jumpurl,1).'<br />';
1.223 matthew 3374: } else {
3375: $result.= &mt($field->{'translate'},
3376: $values{$field->{'name'}});
3377: }
3378: $result .= "<br />\n";
1.225 matthew 3379: }
1.223 matthew 3380: }
3381: $result .= "</p>";
3382: if (exists($values{'extrashow'}) && $values{'extrashow'} ne '') {
3383: $result .= '<p>'.$values{'extrashow'}.'</p>';
3384: }
3385: if (exists($values{'shortabstract'}) && $values{'shortabstract'} ne '') {
3386: $result .= '<p>'.$values{'shortabstract'}.'</p>';
1.218 matthew 3387: }
1.50 harris41 3388: return $result;
1.222 matthew 3389: }
3390:
1.255 www 3391: sub detailed_citation_preview {
3392: my ($prefix,%values)=@_;
1.312 bisitz 3393: return &detailed_citation_view($prefix,%values).
1.255 www 3394: '</td><td>'.
1.312 bisitz 3395: &Apache::lonindexer::showpreview($values{'url'});
1.255 www 3396: }
3397:
3398:
1.222 matthew 3399: ######################################################################
3400: ######################################################################
3401:
1.122 matthew 3402: =pod
3403:
3404: =item &summary_view()
3405:
3406: =cut
3407: ######################################################################
3408: ######################################################################
1.50 harris41 3409: sub summary_view {
1.150 matthew 3410: my ($prefix,%values) = @_;
1.192 albertel 3411: my $icon=&Apache::loncommon::icon($values{'url'});
1.312 bisitz 3412: my $result=qq{$prefix<img src="$icon" alt="" />};
1.244 albertel 3413: if (exists($env{'form.sortfield'}) &&
3414: $env{'form.sortfield'} !~ /^(default|
1.241 matthew 3415: author|
3416: url|
3417: title|
3418: owner|
3419: lastrevisiondate|
3420: copyright)$/x) {
1.244 albertel 3421: my $tmp = $values{$env{'form.sortfield'}};
1.241 matthew 3422: if (! defined($tmp)) { $tmp = 'undefined'; }
3423: $result .= ' '.$tmp.' ';
3424: }
1.247 www 3425: my $jumpurl=$values{'url'};
1.287 albertel 3426: $jumpurl=~s|^/ext/|http://|;
1.319 bisitz 3427: my $link = '<br />'.&display_url($jumpurl,1).'<br />';
1.332 bisitz 3428: $result .=
3429: '<a href="'.$jumpurl.'?inhibitmenu=yes"'.
3430: ' target="preview">'.$values{'title'}.'</a>'.
3431: &display_tools($values{'title'}, $jumpurl).<<END;
1.325 wenzelju 3432: <br />
1.312 bisitz 3433: $link<br />
1.241 matthew 3434: $values{'author'}, $values{'owner'} -- $values{'lastrevisiondate'}<br />
1.126 matthew 3435: $values{'copyrighttag'}<br />
3436: $values{'extrashow'}
1.50 harris41 3437: END
3438: return $result;
3439: }
3440:
1.255 www 3441: sub summary_preview {
3442: my ($prefix,%values)=@_;
1.312 bisitz 3443: return &summary_view($prefix,%values).
1.255 www 3444: '</td><td>'.
1.312 bisitz 3445: &Apache::lonindexer::showpreview($values{'url'});
1.255 www 3446: }
3447:
1.122 matthew 3448: ######################################################################
3449: ######################################################################
3450:
3451: =pod
3452:
1.150 matthew 3453: =item &compact_view()
3454:
3455: =cut
3456:
3457: ######################################################################
3458: ######################################################################
3459: sub compact_view {
3460: my ($prefix,%values) = @_;
1.247 www 3461: my $jumpurl=$values{'url'};
1.287 albertel 3462: $jumpurl=~s|^/ext/|http://|;
3463:
1.319 bisitz 3464: my $link = &display_url($jumpurl,1);
1.287 albertel 3465:
1.223 matthew 3466: my $result =
1.306 bisitz 3467: $prefix.'<img src="'.&Apache::loncommon::icon($values{'url'}).'" alt="" />';
1.244 albertel 3468: if (exists($env{'form.sortfield'}) &&
3469: $env{'form.sortfield'} !~ /^(default|author|url|title)$/) {
3470: my $tmp = $values{$env{'form.sortfield'}};
1.241 matthew 3471: if (! defined($tmp)) { $tmp = 'undefined'; }
3472: $result .= ' '.$tmp.' ';
3473: }
1.287 albertel 3474: $jumpurl = &HTML::Entities::encode($jumpurl,'<>&"');
3475: $result.=' <span class="LC_nobreak">'.
1.288 albertel 3476: '<a href="'.$jumpurl.'?inhibitmenu=yes" target="preview">'.
1.287 albertel 3477: &HTML::Entities::encode($values{'title'},'<>&"').'</a></span> '.
1.332 bisitz 3478: &display_tools($values{'title'}, $jumpurl).
1.312 bisitz 3479: $link.' <b>'.$values{'author'}.'</b> ('.$values{'domain'}.')';
1.150 matthew 3480: return $result;
3481: }
3482:
1.287 albertel 3483: sub display_url {
1.319 bisitz 3484: my ($url,$skiplast) = @_;
1.287 albertel 3485: my $link;
3486: if ($url=~m|^/ext/|) {
3487: $url=~s|^/ext/|http://|;
3488: $link='<span class="LC_filename">'.$url.'</span>';
3489: } elsif ($url=~m{^(http://|/uploaded/)}) {
3490: $link='<span class="LC_filename">'.$url.'</span>';
3491: } else {
1.319 bisitz 3492: $link=&Apache::lonhtmlcommon::crumbs(
3493: $url,
3494: 'preview',
3495: '',
3496: (($env{'form.catalogmode'} eq 'import')?'parent.statusframe.document.forms.statusform':''),
3497: $skiplast).' ';
1.287 albertel 3498: }
3499: return $link;
3500: }
1.150 matthew 3501:
3502: ######################################################################
3503: ######################################################################
3504:
3505: =pod
3506:
1.122 matthew 3507: =item &fielded_format_view()
3508:
3509: =cut
3510:
3511: ######################################################################
3512: ######################################################################
1.50 harris41 3513: sub fielded_format_view {
1.150 matthew 3514: my ($prefix,%values) = @_;
1.192 albertel 3515: my $icon=&Apache::loncommon::icon($values{'url'});
1.222 matthew 3516: my %Translated = &Apache::lonmeta::fieldnames();
1.247 www 3517: my $jumpurl=$values{'url'};
1.275 albertel 3518: $jumpurl=~s|^/ext/|http://|;
1.247 www 3519:
1.50 harris41 3520: my $result=<<END;
1.312 bisitz 3521: $prefix <img src="$icon" alt="" />
1.222 matthew 3522: <dl>
3523: <dt>URL:</dt>
1.288 albertel 3524: <dd><a href="$jumpurl?inhibitmenu=yes"
1.325 wenzelju 3525: target='preview'>$values{'url'}</a>
1.50 harris41 3526: END
1.332 bisitz 3527: $result .=
3528: &display_tools($values{'title'}, $jumpurl).'
3529: </dd>';
1.239 matthew 3530: foreach my $field ('title','author','domain','subject','keywords','notes',
1.222 matthew 3531: 'mimetag','language','creationdate','lastrevisiondate',
3532: 'owner','copyrighttag','hostname','abstract') {
3533: $result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".
3534: (' 'x8).'<dd>'.$values{$field}.'</dd>'."\n";
3535: }
3536: if (&has_stat_data(\%values)) {
3537: foreach my $field (&statfields()) {
3538: $result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".
3539: (' 'x8).'<dd>'.$values{$field}.'</dd>'."\n";
3540: }
3541: }
3542: if (&has_eval_data(\%values)) {
3543: foreach my $field (&evalfields()) {
3544: $result .= (' 'x4).'<dt>'.$Translated{$field}.'</dt>'."\n".
3545: (' 'x8).'<dd>'.$values{$field}.'</dd>'."\n";
3546: }
3547: }
3548: $result .= "</dl>\n";
3549: $result .= $values{'extrashow'};
1.50 harris41 3550: return $result;
3551: }
3552:
1.122 matthew 3553: ######################################################################
3554: ######################################################################
3555:
3556: =pod
3557:
3558: =item &xml_sgml_view()
3559:
3560: =back
3561:
3562: =cut
3563:
3564: ######################################################################
3565: ######################################################################
1.50 harris41 3566: sub xml_sgml_view {
1.150 matthew 3567: my ($prefix,%values) = @_;
1.222 matthew 3568: my $xml = '<LonCapaResource>'."\n";
3569: # The usual suspects
1.239 matthew 3570: foreach my $field ('url','title','author','subject','keywords','notes','domain') {
1.222 matthew 3571: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3572: }
3573: #
3574: $xml .= "<mimeInfo>\n";
3575: foreach my $field ('mime','mimetag') {
3576: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3577: }
3578: $xml .= "</mimeInfo>\n";
3579: #
3580: $xml .= "<languageInfo>\n";
3581: foreach my $field ('language','languagetag') {
3582: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3583: }
3584: $xml .= "</languageInfo>\n";
3585: #
3586: foreach my $field ('creationdate','lastrevisiondate','owner') {
3587: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3588: }
3589: #
3590: $xml .= "<copyrightInfo>\n";
3591: foreach my $field ('copyright','copyrighttag') {
3592: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3593: }
3594: $xml .= "</copyrightInfo>\n";
3595: $xml .= qq{<repositoryLocation>$values{'hostname'}</repositoryLocation>}.
3596: "\n";
3597: $xml .= qq{<shortabstract>$values{'shortabstract'}</shortabstract>}."\n";
3598: #
3599: if (&has_stat_data(\%values)){
3600: $xml .= "<problemstatistics>\n";
3601: foreach my $field (&statfields()) {
3602: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3603: }
3604: $xml .= "</problemstatistics>\n";
3605: }
3606: #
3607: if (&has_eval_data(\%values)) {
3608: $xml .= "<evaluation>\n";
3609: foreach my $field (&evalfields) {
3610: $xml .= qq{<$field>$values{$field}</$field>}."\n";
3611: }
3612: $xml .= "</evaluation>\n";
3613: }
3614: #
3615: $xml .= "</LonCapaResource>\n";
1.212 matthew 3616: $xml = &HTML::Entities::encode($xml,'<>&');
1.50 harris41 3617: my $result=<<END;
1.150 matthew 3618: $prefix
1.56 harris41 3619: <pre>
1.212 matthew 3620: $xml
1.56 harris41 3621: </pre>
1.126 matthew 3622: $values{'extrashow'}
1.50 harris41 3623: END
3624: return $result;
1.60 harris41 3625: }
3626:
1.122 matthew 3627: ######################################################################
3628: ######################################################################
3629:
3630: =pod
3631:
3632: =item &filled() see if field is filled.
3633:
3634: =cut
3635:
3636: ######################################################################
3637: ######################################################################
1.98 harris41 3638: sub filled {
3639: my ($field)=@_;
3640: if ($field=~/\S/ && $field ne 'any') {
1.204 matthew 3641: return 1;
3642: } else {
3643: return 0;
1.61 harris41 3644: }
1.60 harris41 3645: }
3646:
1.122 matthew 3647: ######################################################################
3648: ######################################################################
3649:
3650: =pod
3651:
1.228 matthew 3652: =item &output_unparsed_phrase_error()
3653:
3654: =cut
3655:
3656: ######################################################################
3657: ######################################################################
3658: sub output_unparsed_phrase_error {
3659: my ($r,$closebutton,$parms,$hidden_fields,$field)=@_;
3660: my $errorstring;
3661: if ($field eq 'basicexp') {
1.312 bisitz 3662: $errorstring = &mt('Unable to understand the search phrase [_1]. Please modify your search.'
3663: ,'<i>'.$env{'form.basicexp'}.'</i>');
1.228 matthew 3664: } else {
1.312 bisitz 3665: $errorstring = &mt('Unable to understand the search phrase [_1]: [_2]'
3666: ,'<i>'.$field.'</i>'
3667: ,$env{'form.'.$field});
1.228 matthew 3668: }
3669: my $heading = &mt('Unparsed Field');
3670: my $revise = &mt('Revise search request');
3671: # make query information persistent to allow for subsequent revision
1.256 albertel 3672: my $start_page = &Apache::loncommon::start_page('Search');
3673: my $end_page = &Apache::loncommon::end_page();
1.228 matthew 3674: $r->print(<<ENDPAGE);
1.256 albertel 3675: $start_page
1.228 matthew 3676: <form method="post" action="/adm/searchcat">
3677: $hidden_fields
3678: $closebutton
3679: <hr />
3680: <h2>$heading</h2>
1.312 bisitz 3681: <p class="LC_warning">
1.228 matthew 3682: $errorstring
3683: </p>
3684: <p>
1.309 bisitz 3685: <a href="/adm/searchcat?$parms&persistent_db_id=$env{'form.persistent_db_id'}">$revise</a>
1.228 matthew 3686: </p>
1.256 albertel 3687: $end_page
1.228 matthew 3688: ENDPAGE
3689: }
3690:
3691: ######################################################################
3692: ######################################################################
3693:
3694: =pod
3695:
1.122 matthew 3696: =item &output_blank_field_error()
3697:
1.151 matthew 3698: Output a complete page that indicates the user has not filled in enough
3699: information to do a search.
3700:
3701: Inputs: $r (Apache request handle), $closebutton, $parms.
3702:
3703: Returns: nothing
3704:
3705: $parms is extra information to include in the 'Revise search request' link.
3706:
1.122 matthew 3707: =cut
3708:
3709: ######################################################################
3710: ######################################################################
1.98 harris41 3711: sub output_blank_field_error {
1.196 matthew 3712: my ($r,$closebutton,$parms,$hidden_fields)=@_;
1.312 bisitz 3713: my $errormsg = &mt('You did not fill in enough information for the search to be started. You need to fill in relevant fields on the search page in order for a query to be processed.');
1.228 matthew 3714: my $revise = &mt('Revise Search Request');
1.315 bisitz 3715: my $heading = &mt('Unactionable Search Query');
1.256 albertel 3716: my $start_page = &Apache::loncommon::start_page('Search');
3717: my $end_page = &Apache::loncommon::end_page();
1.315 bisitz 3718: if ($closebutton) {
3719: $closebutton = '<p>'.$closebutton.'</p><hr />';
3720: } else {
3721: &Apache::lonhtmlcommon::add_breadcrumb
3722: ({href=>'',
3723: text=>$heading,});
3724: $start_page .= &Apache::lonhtmlcommon::breadcrumbs();
3725: }
3726:
1.228 matthew 3727: $r->print(<<ENDPAGE);
1.256 albertel 3728: $start_page
1.98 harris41 3729: <form method="post" action="/adm/searchcat">
1.145 matthew 3730: $hidden_fields
1.98 harris41 3731: $closebutton
1.315 bisitz 3732: </form>
1.228 matthew 3733: <h2>$heading</h2>
1.312 bisitz 3734: <p class="LC_warning">
1.228 matthew 3735: $errormsg
3736: </p>
3737: <p>
1.315 bisitz 3738: <a href="/adm/searchcat?$parms&persistent_db_id=$env{'form.persistent_db_id'}">$revise</a>
1.98 harris41 3739: </p>
1.256 albertel 3740: $end_page
1.228 matthew 3741: ENDPAGE
3742: return;
1.98 harris41 3743: }
3744:
1.122 matthew 3745: ######################################################################
3746: ######################################################################
3747:
3748: =pod
3749:
3750: =item &output_date_error()
3751:
3752: Output a full html page with an error message.
3753:
1.145 matthew 3754: Inputs:
3755:
3756: $r, the request pointer.
3757: $message, the error message for the user.
3758: $closebutton, the specialized close button needed for groupsearch.
3759:
1.122 matthew 3760: =cut
3761:
3762: ######################################################################
3763: ######################################################################
1.60 harris41 3764: sub output_date_error {
1.196 matthew 3765: my ($r,$message,$closebutton,$hidden_fields)=@_;
1.60 harris41 3766: # make query information persistent to allow for subsequent revision
1.256 albertel 3767: my $start_page = &Apache::loncommon::start_page('Search');
3768: my $end_page = &Apache::loncommon::end_page();
1.312 bisitz 3769: my $heading = &mt('Error');
1.122 matthew 3770: $r->print(<<RESULTS);
1.256 albertel 3771: $start_page
1.60 harris41 3772: <form method="post" action="/adm/searchcat">
1.145 matthew 3773: $hidden_fields
1.60 harris41 3774: <input type='button' value='Revise search request'
1.313 bisitz 3775: onclick='this.form.submit();' />
1.60 harris41 3776: $closebutton
1.312 bisitz 3777: </form>
1.98 harris41 3778: <hr />
1.312 bisitz 3779: <h3>$heading</h3>
3780: <p class="LC_error">
1.60 harris41 3781: $message
3782: </p>
1.256 albertel 3783: $end_page
1.60 harris41 3784: RESULTS
1.101 harris41 3785: }
3786:
1.122 matthew 3787: ######################################################################
3788: ######################################################################
3789:
3790: =pod
3791:
3792: =item &start_fresh_session()
3793:
1.142 matthew 3794: Cleans the global %groupsearch_db by removing all fields which begin with
1.122 matthew 3795: 'pre_' or 'store'.
3796:
3797: =cut
3798:
3799: ######################################################################
3800: ######################################################################
1.101 harris41 3801: sub start_fresh_session {
1.142 matthew 3802: delete $groupsearch_db{'mode_catalog'};
3803: foreach (keys %groupsearch_db) {
1.101 harris41 3804: if ($_ =~ /^pre_/) {
1.142 matthew 3805: delete $groupsearch_db{$_};
1.101 harris41 3806: }
3807: if ($_ =~ /^store/) {
1.142 matthew 3808: delete $groupsearch_db{$_};
1.101 harris41 3809: }
1.109 harris41 3810: }
1.3 harris41 3811: }
1.1 www 3812:
3813: 1;
1.162 www 3814:
3815: sub cleanup {
1.163 www 3816: if (tied(%groupsearch_db)) {
3817: unless (untie(%groupsearch_db)) {
3818: &Apache::lonnet::logthis('Failed cleanup searchcat: groupsearch_db');
3819: }
3820: }
1.162 www 3821: &Apache::lonmysql::disconnect_from_db();
1.252 albertel 3822: return OK;
1.162 www 3823: }
1.98 harris41 3824:
1.1 www 3825: __END__
1.105 harris41 3826:
1.121 matthew 3827: =pod
1.105 harris41 3828:
1.121 matthew 3829: =back
1.105 harris41 3830:
3831: =cut
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