Annotation of loncom/interface/groupsort.pm, revision 1.30
1.1 harris41 1: # The LearningOnline Network with CAPA
1.4 harris41 2: # The LON-CAPA group sort handler
3: # Allows for sorting prior to import into RAT.
4: #
1.30 ! albertel 5: # $Id: groupsort.pm,v 1.29 2004/07/12 20:42:31 matthew Exp $
1.4 harris41 6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
1.1 harris41 20: #
1.4 harris41 21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
1.1 harris41 26: #
1.4 harris41 27: # http://www.lon-capa.org/
1.1 harris41 28: #
29: # YEAR=2001
1.6 harris41 30: # YEAR=2002
1.4 harris41 31: #
32: ###
1.1 harris41 33:
34: package Apache::groupsort;
35:
36: use strict;
37:
38: use Apache::Constants qw(:common);
39: use GDBM_File;
1.15 www 40: use Apache::loncommon;
1.23 www 41: use Apache::lonlocal;
1.27 taceyjo1 42: use Apache::lonnet;
1.1 harris41 43:
1.2 harris41 44: my %hash; # variable to tie to user specific database
45: my $iconpath; # variable to be accessible to multiple subroutines
1.17 www 46:
47: sub cleanup {
1.18 www 48: if (tied(%hash)){
49: &Apache::lonnet::logthis('Cleanup groupsort: hash');
50: unless (untie(%hash)) {
51: &Apache::lonnet::logthis('Failed cleanup groupsort: hash');
52: }
53: }
1.17 www 54: }
1.2 harris41 55:
56: # ---------------------------------------------------------------- Main Handler
1.1 harris41 57: sub handler {
58: my $r = shift;
1.9 www 59:
60: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
61: ['acts','catalogmode','mode']);
1.2 harris41 62: # color scheme
63: my $fileclr = '#ffffe6';
64: my $titleclr = '#ddffff';
65:
1.23 www 66: &Apache::loncommon::content_type($r,'text/html');
1.1 harris41 67: $r->send_http_header;
68: return OK if $r->header_only;
1.2 harris41 69:
1.8 www 70: # finish_import looks different for graphical or "simple" RAT
71: my $finishimport='';
1.24 matthew 72: if ($ENV{'form.mode'} eq 'simple' || $ENV{'form.mode'} eq '') {
1.8 www 73: $finishimport=(<<ENDSMP);
74: function finish_import() {
1.10 www 75: opener.document.forms.simpleedit.importdetail.value='';
76: for (var num=0; num<document.forms.groupsort.fnum.value; num++) {
77: opener.document.forms.simpleedit.importdetail.value+='&'+
78: escape(eval("document.forms.groupsort.title"+num+".value"))+'='+
79: escape(eval("document.forms.groupsort.filelink"+num+".value"));
80: }
81: opener.document.forms.simpleedit.submit();
82: self.close();
1.8 www 83: }
84: ENDSMP
85: } else {
86: $finishimport=(<<ENDADV);
87: function finish_import() {
88: var linkflag=false;
89: for (var num=0; num<document.forms.groupsort.fnum.value; num++) {
90: insertRowInLastRow();
91: placeResourceInLastRow(
92: eval("document.forms.groupsort.title"+num+".value"),
93: eval("document.forms.groupsort.filelink"+num+".value"),
94: linkflag
95: );
96: linkflag=true;
97: }
98: opener.editmode=0;
99: opener.notclear=0;
100: opener.linkmode=0;
101: opener.draw();
102: self.close();
103: }
104: ENDADV
105: }
106:
107: # output start of web page
1.30 ! albertel 108: my $html=&Apache::lonxml::xmlbegin();
1.1 harris41 109: $r->print(<<END);
1.30 ! albertel 110: $html
1.1 harris41 111: <head>
112: <title>The LearningOnline Network With CAPA Group Sorter</title>
113: <script language='javascript'>
114: function insertRowInLastRow() {
115: opener.insertrow(opener.maxrow);
116: opener.addobj(opener.maxrow,'e&2');
117: }
118: function placeResourceInLastRow (title,url,linkflag) {
1.2 harris41 119: opener.newresource(opener.maxrow,2,opener.escape(title),
120: opener.escape(url),'false','normal');
1.1 harris41 121: opener.save();
122: opener.mostrecent=opener.obj.length-1;
123: if (linkflag) {
124: opener.joinres(opener.linkmode,opener.mostrecent,0);
125: }
126: opener.linkmode=opener.mostrecent;
127: }
1.8 www 128: $finishimport
1.1 harris41 129: function selectchange(val) {
1.3 harris41 130: var newval=0+eval("document.forms.groupsort.alt"+val+".selectedIndex");
1.1 harris41 131: orderchange(val,newval);
132: }
133: function move(val,newval) {
134: orderchange(val,newval);
135: }
136: function orderchange(val,newval) {
137: document.forms.groupsort.oldval.value=val;
138: document.forms.groupsort.newval.value=newval;
139: document.forms.groupsort.submit();
140: }
141: </script>
142: </head>
143: END
1.2 harris41 144: # read pertinent machine configuration
1.1 harris41 145: my $domain = $r->dir_config('lonDefDomain');
1.2 harris41 146: $iconpath = $r->dir_config('lonIconsURL') . "/";
147:
148: my %shash; # sort order (key is resource location, value is sort order)
149: my %thash; # title (key is resource location, value is title)
1.9 www 150:
1.4 harris41 151: my $diropendb;
1.11 www 152: # ------------------------------ which file do we open? Easy if explictly given
1.4 harris41 153: if ($ENV{'form.catalogmode'} eq 'groupsearch') {
154: $diropendb =
1.21 albertel 155: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_searchcat.db";
1.4 harris41 156: }
157: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
158: $diropendb =
1.21 albertel 159: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_indexer.db";
1.6 harris41 160: }
1.11 www 161: elsif ($ENV{'form.catalogmode'} eq 'groupsec') {
162: $diropendb =
1.21 albertel 163: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_groupsec.db";
1.11 www 164: }
165: # --------------------- not explicitly given, choose the one most recently used
1.6 harris41 166: else { # choose last accessed
1.11 www 167: my @dbfn;
168: my @dbst;
169:
170: $dbfn[0] =
1.21 albertel 171: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_searchcat.db";
1.11 www 172: $dbst[0]=-1;
173: if (-e $dbfn[0]) {
174: $dbst[0]=(stat($dbfn[0]))[9];
1.6 harris41 175: }
1.11 www 176: $dbfn[1] =
1.21 albertel 177: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_indexer.db";
1.11 www 178: $dbst[1]=-1;
179: if (-e $dbfn[1]) {
180: $dbst[1]=(stat($dbfn[1]))[9];
1.6 harris41 181: }
1.11 www 182: $dbfn[2] =
1.21 albertel 183: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_groupsec.db";
1.11 www 184: $dbst[2]=-1;
185: if (-e $dbfn[2]) {
186: $dbst[2]=(stat($dbfn[2]))[9];
187: }
188: # Expand here for more modes
189: # ....
190:
191: # Okay, find most recent existing
192:
193: my $newest=0;
1.12 www 194: $diropendb='';
1.11 www 195: for (my $i=0; $i<=$#dbfn; $i++) {
196: if ($dbst[$i]>$newest) {
197: $newest=$dbst[$i];
198: $diropendb=$dbfn[$i];
199: }
1.6 harris41 200: }
1.11 www 201:
1.4 harris41 202: }
1.11 www 203: # ----------------------------- diropendb is now the filename of the db to open
1.13 albertel 204: if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {
1.2 harris41 205: my $acts = $ENV{'form.acts'};
206: my @Acts = split(/b/,$acts);
1.1 harris41 207: my %ahash;
208: my %achash;
1.2 harris41 209: my $ac = 0;
1.5 harris41 210: foreach (@Acts) {
1.2 harris41 211: my ($state,$ref) = split(/a/);
212: $ahash{$ref} = $state;
213: $achash{$ref} = $ac;
1.1 harris41 214: $ac++;
1.5 harris41 215: }
216: foreach (sort {$achash{$a} <=> $achash{$b}} (keys %ahash)) {
1.2 harris41 217: my $key = $_;
1.1 harris41 218: if ($ahash{$key} eq '1') {
1.3 harris41 219: # my $keyz=join("<br />",keys %hash);
220: # print "<br />$key<br />$keyz".$hash{'pre_'.$key.'_link'}."<br />\n";
1.2 harris41 221: $hash{'store_'.$hash{'pre_'.$key.'_link'}} =
1.1 harris41 222: $hash{'pre_'.$key.'_title'};
1.2 harris41 223: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}} =
1.1 harris41 224: $hash{'storectr'}+0;
225: $hash{'storectr'}++;
226: }
227: if ($ahash{$key} eq '0') {
228: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
229: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
230: }
231: }
1.5 harris41 232: }
233: foreach (keys %hash) {
1.1 harris41 234: if ($_ =~ /^store_/) {
1.2 harris41 235: my $key = $_;
236: $key =~ s/^store_//;
237: $shash{$key} = $hash{'storectr_'.$key};
1.27 taceyjo1 238: if (&Apache::lonnet::gettitle($key) eq '') {
1.28 albertel 239: $thash{$key} = $hash{'store_'.$key};
240: } else {
241: $thash{$key} = &Apache::lonnet::gettitle($key);
242: }
1.1 harris41 243: }
1.5 harris41 244: }
1.1 harris41 245: if ($ENV{'form.oldval'}) {
1.2 harris41 246: my $newctr = 0;
1.1 harris41 247: my %chash;
1.5 harris41 248: foreach (sort {$shash{$a} <=> $shash{$b}} (keys %shash)) {
1.2 harris41 249: my $key = $_;
1.1 harris41 250: $newctr++;
1.2 harris41 251: $shash{$key} = $newctr;
252: $hash{'storectr_'.$key} = $newctr;
253: $chash{$newctr} = $key;
1.5 harris41 254: }
1.2 harris41 255: my $oldval = $ENV{'form.oldval'};
256: my $newval = $ENV{'form.newval'};
257: if ($oldval != $newval) {
1.3 harris41 258: # when newval==0, then push down and delete
259: if ($newval!=0) {
260: $shash{$chash{$oldval}} = $newval;
261: $hash{'storectr_'.$chash{$oldval}} = $newval;
262: }
263: else {
264: $shash{$chash{$oldval}} = $newctr;
265: $hash{'storectr_'.$chash{$oldval}} = $newctr;
266: }
267: if ($newval==0) { # push down
268: my $newval2=$newctr;
269: for my $idx ($oldval..($newval2-1)) {
270: $shash{$chash{$idx+1}} = $idx;
271: $hash{'storectr_'.$chash{$idx+1}} = $idx;
272: }
273: delete $shash{$chash{$oldval}};
274: delete $hash{'storectr_'.$chash{$oldval}};
275: delete $hash{'store_'.$chash{$oldval}};
276: }
277: elsif ($oldval < $newval) { # push down
1.1 harris41 278: for my $idx ($oldval..($newval-1)) {
1.2 harris41 279: $shash{$chash{$idx+1}} = $idx;
280: $hash{'storectr_'.$chash{$idx+1}} = $idx;
1.1 harris41 281: }
282: }
1.2 harris41 283: elsif ($oldval > $newval) { # push up
1.1 harris41 284: for my $idx (reverse($newval..($oldval-1))) {
1.2 harris41 285: $shash{$chash{$idx}} = $idx+1;
286: $hash{'storectr_'.$chash{$idx}} = $idx+1;
1.1 harris41 287: }
288: }
289: }
290: }
291: } else {
1.2 harris41 292: $r->print('Unable to tie hash to db file</body></html>');
1.1 harris41 293: return OK;
294: }
295: untie %hash;
1.2 harris41 296: my $ctr = 0;
297: my $clen = scalar(keys %shash);
1.22 albertel 298: if ($clen > 1) {
1.23 www 299: my %lt=&Apache::lonlocal::texthash(
300: 'fin'=> 'Finalize order of resources',
301: 'gb' => 'Go Back',
302: 'ns' => 'New Search',
303: 'fi' => 'Finish Import',
304: 'ca' => 'Cancel',
305: 'co' => 'Change Order',
306: 'ti' => 'Title',
307: 'pa' => 'Path'
308: );
1.22 albertel 309: $r->print(&Apache::loncommon::bodytag('Sort Imported Resources'));
310: $r->print(<<END);
1.23 www 311: <b><font color="#888888">$lt{'fin'}</font></b>
1.14 matthew 312: <form method='post' action='/adm/groupsort' name='groupsort'
313: enctype='application/x-www-form-urlencoded'>
1.1 harris41 314: <input type="hidden" name="fnum" value="$clen" />
315: <input type="hidden" name="oldval" value="" />
316: <input type="hidden" name="newval" value="" />
1.14 matthew 317: <input type="hidden" name="mode" value="$ENV{'form.mode'}" />
1.3 harris41 318: END
1.11 www 319:
1.22 albertel 320: # --- Expand here if "GO BACK" button desired
321: if ($ENV{'form.catalogmode'} eq 'groupimport') {
1.29 matthew 322: my $resurl = &Apache::loncommon::lastresurl();
1.22 albertel 323: $r->print(<<END);
1.23 www 324: <input type="button" name="alter" value="$lt{'gb'}"
1.29 matthew 325: onClick="window.location='$resurl?catalogmode=groupimport'" />
1.3 harris41 326: END
1.22 albertel 327: }
328: if ($ENV{'form.catalogmode'} eq 'groupsearch') {
329: $r->print(<<END);
1.23 www 330: <input type="button" name="alter" value="$lt{'ns'}"
1.16 matthew 331: onClick="window.location='/adm/searchcat?catalogmode=groupsearch&cleargroupsort=1'" />
1.3 harris41 332: END
1.22 albertel 333: }
334: # ---
1.11 www 335:
1.22 albertel 336: $r->print(<<END);
1.23 www 337: <input type="button" name="alter" value="$lt{'fi'}"
1.2 harris41 338: onClick="finish_import()" />
1.23 www 339: <input type="button" name="alter" value="$lt{'ca'}" onClick="self.close()" />
1.1 harris41 340: END
1.22 albertel 341: $r->print("<table border='0'><tr><td bgcolor='#eeeeee'>");
342: $r->print("<table border=0><tr>\n");
1.23 www 343: $r->print("<td colspan='2' bgcolor='$titleclr'><b>$lt{'co'}</b></td>\n");
344: $r->print("<td colspan='2' bgcolor='$titleclr'><b>$lt{'ti'}</b></td>\n");
345: $r->print("<td bgcolor='$titleclr'><b>$lt{'pa'}</b></td></tr>\n");
1.22 albertel 346: } else {
347: $r->print(<<END);
348: <body>
349: <form method='post' action='/adm/groupsort' name='groupsort'
350: enctype='application/x-www-form-urlencoded'>
351: <input type="hidden" name="fnum" value="$clen" />
352: <input type="hidden" name="oldval" value="" />
353: <input type="hidden" name="newval" value="" />
354: <input type="hidden" name="mode" value="$ENV{'form.mode'}" />
355: END
356: }
1.5 harris41 357: foreach (sort {$shash{$a}<=>$shash{$b}} (keys %shash)) {
1.1 harris41 358: my $key=$_;
359: $ctr++;
1.25 albertel 360: my $iconname=&Apache::loncommon::icon($key);
1.22 albertel 361: if ($clen > 1) {
362: $r->print("<tr><td bgcolor='$fileclr'>");
363: $r->print(&movers($clen,$ctr));
364: }
1.1 harris41 365: $r->print(&hidden($ctr-1,$thash{$key},$key));
1.22 albertel 366: if ($clen > 1) {
367: $r->print("</td><td bgcolor='$fileclr'>");
368: $r->print(&select_box($clen,$ctr));
369: $r->print("</td><td bgcolor='$fileclr'>");
1.26 albertel 370: $r->print("<img src='$iconname' />");
1.22 albertel 371: $r->print("</td><td bgcolor='$fileclr'>");
372: $r->print("$thash{$key}</td><td bgcolor='$fileclr'>\n");
373: $r->print("$key</td></tr>\n");
374: }
375: }
376: if ($clen > 1) {
377: $r->print("</table></td></tr></table></form>");
378: } else {
379: $r->print(<<END);
380: <script type="text/javascript">
381: finish_import();
382: </script>
383: END
384: }
1.1 harris41 385: $r->print(<<END);
386: </body>
387: </html>
388: END
1.22 albertel 389:
1.1 harris41 390: return OK;
391: }
392:
1.2 harris41 393: # --------------------------------------- Hidden values (returns scalar string)
1.1 harris41 394: sub hidden {
1.2 harris41 395: my ($sel,$title,$filelink) = @_;
396: my $string = '<input type="hidden" name="title'.$sel.'" value="'.$title.
397: '" />';
398: $string .= '<input type="hidden" name="filelink'.$sel.'" value="'.
399: $filelink.'" />';
1.1 harris41 400: return $string;
401: }
402:
1.2 harris41 403: # --------------------------------------- Moving arrows (returns scalar string)
1.1 harris41 404: sub movers {
1.2 harris41 405: my ($total,$sel) = @_;
406: my $dsel = $sel-1;
407: my $usel = $sel+1;
408: $usel = 1 if $usel > $total;
409: $dsel = $total if $dsel < 1;
1.1 harris41 410: my $string;
1.2 harris41 411: $string = (<<END);
1.1 harris41 412: <table border='0' cellspacing='0' cellpadding='0'>
1.2 harris41 413: <tr><td><a href='javascript:move($sel,$dsel)'>
414: <img src="${iconpath}move_up.gif" alt='UP' border='0' /></a></td></tr>
415: <tr><td><a href='javascript:move($sel,$usel)'>
416: <img src="${iconpath}move_down.gif" alt='DOWN' border='0' /></a></td></tr>
1.1 harris41 417: </table>
418: END
419: return $string;
420: }
1.2 harris41 421:
422: # ------------------------------------------ Select box (returns scalar string)
1.1 harris41 423: sub select_box {
1.2 harris41 424: my ($total,$sel) = @_;
1.1 harris41 425: my $string;
1.2 harris41 426: $string = '<select name="alt'.$sel.'"';
427: $string .= " onChange='selectchange($sel)'>";
1.3 harris41 428: $string .= "<option name='o0' value='0'>remove</option>";
1.1 harris41 429: for my $cur (1..$total) {
1.2 harris41 430: $string .= "<option name='o$cur' value='$cur'";
431: if ($cur == $sel) {
432: $string .= "selected";
1.1 harris41 433: }
1.2 harris41 434: $string .= ">$cur</option>";
1.1 harris41 435: }
1.2 harris41 436: $string .= "</select>\n";
1.1 harris41 437: return $string;
438: }
439:
440: 1;
441:
442: __END__
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