Annotation of loncom/interface/lonpickcourse.pm, revision 1.28
1.1 www 1: # The LearningOnline Network
2: # Pick a course
3: #
1.28 ! raeburn 4: # $Id: lonpickcourse.pm,v 1.27 2005/04/07 06:56:23 albertel Exp $
1.1 www 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.
14: #
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/
27: #
28:
29: package Apache::lonpickcourse;
30:
31: use strict;
32: use Apache::Constants qw(:common);
33: use Apache::loncommon;
34: use Apache::loncoursedata;
35: use Apache::lonnet;
1.8 www 36: use Apache::lonlocal;
1.1 www 37:
38: sub handler {
39: my $r = shift;
1.8 www 40: &Apache::loncommon::content_type($r,'text/html');
1.1 www 41: $r->send_http_header;
42: return OK if $r->header_only;
43:
44: # ------------------------------------------------------------ Print the screen
1.26 albertel 45: my $html=&Apache::lonxml::xmlbegin();
1.1 www 46: $r->print(<<ENDDOCUMENT);
1.26 albertel 47: $html
1.1 www 48: <head>
49: <title>The LearningOnline Network with CAPA</title>
50: </head>
51: ENDDOCUMENT
1.5 www 52: # Get parameters from query string
1.1 www 53: &Apache::loncommon::get_unprocessed_cgi
54: ($ENV{'QUERY_STRING'},['domainfilter','descriptfilter',
1.13 albertel 55: 'sincefilter','form','cnumelement',
1.19 raeburn 56: 'cdomelement','cnameelement','roleelement',
1.28 ! raeburn 57: 'pickedcourse','instcodefilter',
! 58: 'ownerfilter','coursefilter']);
1.5 www 59: # domain filter and selection
1.27 albertel 60: my $domainfilter=$env{'form.domainfilter'};
1.1 www 61: $domainfilter=~s/\W//g;
1.4 www 62: unless ($domainfilter) { $domainfilter=''; }
63: my $domainselectform=&Apache::loncommon::select_dom_form($domainfilter,
64: 'domainfilter',1);
1.5 www 65: # description filter
1.27 albertel 66: my $descriptfilter=$env{'form.descriptfilter'};
1.4 www 67: unless ($descriptfilter) { $descriptfilter=''; }
1.16 albertel 68: my $listdescript=&HTML::Entities::encode($descriptfilter,'<>&"');
1.20 raeburn 69: # institutional code filter
1.27 albertel 70: my $instcodefilter=$env{'form.instcodefilter'};
1.20 raeburn 71: unless ($instcodefilter) { $instcodefilter=''; }
72: my $listinstcode=&HTML::Entities::encode($instcodefilter,'<>&"');
73: # course owner filter
1.27 albertel 74: my $ownerfilter=$env{'form.ownerfilter'};
1.20 raeburn 75: unless ($ownerfilter) { $ownerfilter=''; }
76: my $listowner=&HTML::Entities::encode($ownerfilter,'<>&"');
1.28 ! raeburn 77: # course ID filter for DCs only
! 78: my ($courseidtag,$coursefilter);
! 79: if ($env{'user.adv'} && $domainfilter && exists($env{'user.role.dc./'.
! 80: $domainfilter.'/'})) {
! 81: $coursefilter=$env{'form.coursefilter'};
! 82: unless ($coursefilter) { $coursefilter=''; }
! 83: my $listcourseid=&HTML::Entities::encode($coursefilter,'<>&"');
! 84: $courseidtag = &mt('LON-CAPA course ID');
! 85: $courseidtag .= qq|<input type="text" name="coursefilter" size="25" value="$listcourseid" />
! 86: <br />
! 87: |;
! 88: }
1.5 www 89: # last course activity filter and selection
1.27 albertel 90: my $sincefilter=$env{'form.sincefilter'};
1.5 www 91: $sincefilter=~s/[^\d-]//g;
92: unless ($sincefilter) { $sincefilter=-1; }
93: my $sincefilterform=&Apache::loncommon::select_form($sincefilter,
94: 'sincefilter',('-1'=>'',
95: '86400' => 'today',
96: '604800' => 'last week',
97: '2592000' => 'last month',
98: '7776000' => 'last three months',
99: '15552000' => 'last six months',
1.9 albertel 100: '31104000' => 'last year',
101: 'select_form_order' =>
102: ['-1','86400','604800','2592000','7776000',
103: '15552000','31104000']));
1.19 raeburn 104: # if called from loncreateuser, report sections, then close
105: my ($loaditem,$seclist);
106: my $num_sections = 0;
1.27 albertel 107: if ($env{'form.form'} eq 'cu' && $env{'form.pickedcourse'}) {
1.19 raeburn 108: $loaditem = 'onLoad="setSections()"';
1.27 albertel 109: my ($cdom,$cnum) = split/_/,$env{'form.pickedcourse'};
1.19 raeburn 110: my %sections_count = ();
111: $num_sections = &Apache::loncommon::get_sections($cdom,$cnum,\%sections_count);
112: my @sections = ();
113: if ($num_sections > 0) {
114: @sections = (sort {$a <=> $b} keys %sections_count);
115: $seclist = join('","',@sections);
116: }
117: }
118: $r->print(&Apache::loncommon::bodytag("Selecting a Course",undef,$loaditem));
1.8 www 119: my %lt=&Apache::lonlocal::texthash(
120: 'cac' => 'Course Activity',
121: 'cde' => 'Course Description',
1.20 raeburn 122: 'cdo' => 'Course Domain',
123: 'cin' => 'Course Institutional Code',
124: 'cow' => "Course Owner's usename");
1.13 albertel 125: my ($name_code,$name_input);
1.27 albertel 126: if (defined($env{'form.cnameelement'}) && $env{'form.cnameelement'} ne '') {
127: $name_code = "opener.document.$env{'form.form'}.$env{'form.cnameelement'}.value=cdesc;";
1.13 albertel 128: $name_input ='<input type="hidden" name="cnameelement" value="'.
1.27 albertel 129: $env{'form.cnameelement'}.'" />';
1.13 albertel 130: }
1.18 raeburn 131: my $submitopener = '';
132: my $autosubmit = '';
133: my $roleelement = '';
1.19 raeburn 134: my $lastaction = 'self.close()';
1.27 albertel 135: if ($env{'form.form'} eq 'cu') {
1.19 raeburn 136: $lastaction = 'document.courselist.pickedcourse.value = cdom+"_"+cname;'."\n".
137: 'document.courselist.submit();';
138: }
1.27 albertel 139: my $roledom = $env{'form.roleelement'};
1.18 raeburn 140: if ($roledom) {
141: $roleelement = '<input type="hidden" name="roleelement" value="'.$roledom.'" />';
142: $submitopener = &Apache::lonroles::processpick($roledom);
143: $autosubmit = 'process_pick("'.$roledom.'")';
144: }
1.1 www 145: $r->print(<<ENDSCRIPT);
146: <script>
1.13 albertel 147: function gochoose(cname,cdom,cdesc) {
148: $name_code
1.27 albertel 149: var openerForm = "$env{'form.form'}";
150: opener.document.$env{'form.form'}.$env{'form.cnumelement'}.value=cname;
1.19 raeburn 151: if (openerForm == 'cu' || openerForm == 'rolechoice') {
1.27 albertel 152: opener.document.$env{'form.form'}.$env{'form.cdomelement'}.value=cdom;
1.19 raeburn 153: }
154: else {
1.27 albertel 155: var slct=opener.document.$env{'form.form'}.$env{'form.cdomelement'};
1.19 raeburn 156: var i;
157: for (i=0;i<slct.length;i++) {
158: if (slct.options[i].value==cdom) { slct.selectedIndex=i; }
159: }
1.1 www 160: }
1.18 raeburn 161: $autosubmit
1.19 raeburn 162: $lastaction
163: }
164:
165: function setSections() {
166: var numSections = $num_sections
167: var sectionsArray = new Array("$seclist")
1.27 albertel 168: opener.document.$env{"form.form"}.currsec.length = 0
1.19 raeburn 169: if (numSections == 0) {
1.27 albertel 170: opener.document.$env{"form.form"}.currsec.multiple=false
171: opener.document.$env{"form.form"}.currsec.size=1;
172: opener.document.$env{"form.form"}.currsec.options[0] = new Option('No existing sections','',false,false)
1.19 raeburn 173: }
174: else {
1.23 raeburn 175: if (numSections == 1) {
1.27 albertel 176: opener.document.$env{"form.form"}.currsec.multiple=false;
177: opener.document.$env{"form.form"}.currsec.size=1;
178: opener.document.$env{"form.form"}.currsec.options[0] = new Option('Select','',true,true);
179: opener.document.$env{"form.form"}.currsec.options[1] = new Option('No section','',false,false)
180: opener.document.$env{"form.form"}.currsec.options[2] = new Option(sectionsArray[0],sectionsArray[0],false,false);
1.19 raeburn 181: }
182: else {
1.23 raeburn 183: for (var i=0; i<numSections; i++) {
1.27 albertel 184: opener.document.$env{"form.form"}.currsec.options[i] = new Option(sectionsArray[i],sectionsArray[i],false,false)
1.23 raeburn 185: }
1.27 albertel 186: opener.document.$env{"form.form"}.currsec.multiple=true
1.23 raeburn 187: if (numSections < 3) {
1.27 albertel 188: opener.document.$env{"form.form"}.currsec.size=numSections;
1.23 raeburn 189: }
190: else {
1.27 albertel 191: opener.document.$env{"form.form"}.currsec.size=3;
1.23 raeburn 192: }
1.27 albertel 193: opener.document.$env{"form.form"}.currsec.options[0].selected = false
1.19 raeburn 194: }
195: }
196: self.close()
1.1 www 197: }
198: </script>
1.18 raeburn 199: $submitopener
1.4 www 200: <form method="post">
1.27 albertel 201: <input type="hidden" name="cnumelement" value="$env{'form.cnumelement'}" />
202: <input type="hidden" name="cdomelement" value="$env{'form.cdomelement'}" />
1.13 albertel 203: $name_input
1.27 albertel 204: <input type="hidden" name="form" value="$env{'form.form'}" />
1.18 raeburn 205: $roleelement
1.8 www 206: $lt{'cac'}: $sincefilterform
1.4 www 207: <br />
1.8 www 208: $lt{'cdo'}: $domainselectform
1.4 www 209: <br />
1.20 raeburn 210: $lt{'cin'}:
211: <input type="text" name="instcodefilter" size="10" value="$listinstcode" />
212: <br />
213: $lt{'cow'}:
214: <input type="text" name="ownerfilter" size="10" value="$listowner" />
215: <br />
1.28 ! raeburn 216: $courseidtag
1.8 www 217: $lt{'cde'}:
1.15 www 218: <input type="text" name="descriptfilter" size="40" value="$listdescript" />
1.5 www 219: <p><input type="submit" name="gosearch" value="Search" /></p>
1.4 www 220: </form>
1.5 www 221: <hr />
1.1 www 222: ENDSCRIPT
1.2 www 223: # ---------------------------------------------------------------- Get the data
1.27 albertel 224: if ($env{'form.gosearch'}) {
1.8 www 225: $r->print(&mt('Searching').' ...<br /> <br />');
1.6 www 226: $r->rflush();
1.5 www 227: unless ($descriptfilter) { $descriptfilter='.'; }
1.20 raeburn 228: unless ($instcodefilter) { $instcodefilter='.'; }
229: unless ($ownerfilter) { $ownerfilter='.'; }
1.28 ! raeburn 230: unless ($coursefilter) { $coursefilter='.'; }
1.5 www 231: my $timefilter=($sincefilter==-1?1:time-$sincefilter);
232: my %courses=
233: &Apache::lonnet::courseiddump
1.28 ! raeburn 234: ($domainfilter,$descriptfilter,$timefilter,$instcodefilter,$ownerfilter,$coursefilter);
1.19 raeburn 235: $r->print('<form name="courselist">');
1.10 albertel 236: my %by_descrip;
237: foreach my $course (keys %courses) {
1.17 raeburn 238: my $descr;
239: if ($courses{$course} =~ m/^([^:]*):/) {
240: $descr = &Apache::lonnet::unescape($1);
241: } else {
242: $descr = &Apache::lonnet::unescape($courses{$course});
243: }
1.24 raeburn 244: my $description = lc($descr);
1.25 raeburn 245: push (@{$by_descrip{$description}}, $course);
1.10 albertel 246: }
247: foreach my $description (sort(keys(%by_descrip))) {
1.24 raeburn 248: foreach my $course (@{$by_descrip{$description}}) {
249: my $cleandesc=&HTML::Entities::encode($description,'<>&"');
250: $cleandesc=~s/'/\\'/g;
251: my ($cdom,$cnum)=split(/\_/,$course);
252: my ($descr,$instcode,$owner) = split/:/,$courses{$course};
253: $r->print('<input type="button" value="Select" onClick="gochoose('.
254: "'".$cnum."','".$cdom."','".$cleandesc."')".'" /> '.$description.' ('.
255: ($Apache::lonnet::domaindescription{$cdom}?
256: $Apache::lonnet::domaindescription{$cdom}:$cdom).")");
257: unless ($instcode eq '') {
258: $r->print(" - ".&Apache::lonnet::unescape($instcode));
259: }
260: unless ($owner eq '') {
261: $r->print(", owner - ".&Apache::lonnet::unescape($owner));
262: }
263: $r->print("<br />\n");
264: }
1.5 www 265: }
1.12 albertel 266: if (!%courses) { $r->print(&mt('None found')); }
1.27 albertel 267: $r->print('<input type="hidden" name="form" value="'.$env{'form.form'}.'" />'."\n".
1.19 raeburn 268: '<input type="hidden" name="pickedcourse" value="" />'."\n".
1.27 albertel 269: '<input type="hidden" name="cnumelement" value="'.$env{'form.cnumelement'}.'" />'."\n".
270: '<input type="hidden" name="cdomelement" value="'.$env{'form.cdomelement'}.'" />'."\n".
1.19 raeburn 271: '</form>');
1.2 www 272: }
1.5 www 273: $r->print('</body></html>');
1.1 www 274: return OK;
1.18 raeburn 275: }
1.1 www 276:
277: 1;
278: __END__
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