Annotation of loncom/interface/groupsort.pm, revision 1.18
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: #
1.18 ! www 5: # $Id: groupsort.pm,v 1.17 2003/01/09 22:04:28 www 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
1.4 harris41 30: # 8/7,8/8,10/14,10/15,12/10 Scott Harrison
1.6 harris41 31: # YEAR=2002
32: # 1/17 Scott Harrison
1.4 harris41 33: #
34: ###
1.1 harris41 35:
36: package Apache::groupsort;
37:
38: use strict;
39:
40: use Apache::Constants qw(:common);
41: use GDBM_File;
1.15 www 42: use Apache::loncommon;
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:
1.1 harris41 66: $r->content_type('text/html');
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 $finishimport='';
72: if ($ENV{'form.mode'} eq 'simple') {
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
108:
1.1 harris41 109: $r->print(<<END);
110: <html>
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
1.15 www 144: $r->print(&Apache::loncommon::bodytag('Sort Imported Resources'));
1.2 harris41 145: # read pertinent machine configuration
1.1 harris41 146: my $domain = $r->dir_config('lonDefDomain');
1.2 harris41 147: $iconpath = $r->dir_config('lonIconsURL') . "/";
148:
149: my %shash; # sort order (key is resource location, value is sort order)
150: my %thash; # title (key is resource location, value is title)
1.9 www 151:
1.4 harris41 152: my $diropendb;
1.11 www 153: # ------------------------------ which file do we open? Easy if explictly given
1.4 harris41 154: if ($ENV{'form.catalogmode'} eq 'groupsearch') {
155: $diropendb =
156: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_searchcat.db";
157: }
158: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
159: $diropendb =
160: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db";
1.6 harris41 161: }
1.11 www 162: elsif ($ENV{'form.catalogmode'} eq 'groupsec') {
163: $diropendb =
164: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_groupsec.db";
165: }
166: # --------------------- not explicitly given, choose the one most recently used
1.6 harris41 167: else { # choose last accessed
1.11 www 168: my @dbfn;
169: my @dbst;
170:
171: $dbfn[0] =
1.6 harris41 172: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_searchcat.db";
1.11 www 173: $dbst[0]=-1;
174: if (-e $dbfn[0]) {
175: $dbst[0]=(stat($dbfn[0]))[9];
1.6 harris41 176: }
1.11 www 177: $dbfn[1] =
1.6 harris41 178: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db";
1.11 www 179: $dbst[1]=-1;
180: if (-e $dbfn[1]) {
181: $dbst[1]=(stat($dbfn[1]))[9];
1.6 harris41 182: }
1.11 www 183: $dbfn[2] =
184: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_groupsec.db";
185: $dbst[2]=-1;
186: if (-e $dbfn[2]) {
187: $dbst[2]=(stat($dbfn[2]))[9];
188: }
189: # Expand here for more modes
190: # ....
191:
192: # Okay, find most recent existing
193:
194: my $newest=0;
1.12 www 195: $diropendb='';
1.11 www 196: for (my $i=0; $i<=$#dbfn; $i++) {
197: if ($dbst[$i]>$newest) {
198: $newest=$dbst[$i];
199: $diropendb=$dbfn[$i];
200: }
1.6 harris41 201: }
1.11 www 202:
1.4 harris41 203: }
1.11 www 204: # ----------------------------- diropendb is now the filename of the db to open
1.13 albertel 205: if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {
1.2 harris41 206: my $acts = $ENV{'form.acts'};
207: my @Acts = split(/b/,$acts);
1.1 harris41 208: my %ahash;
209: my %achash;
1.2 harris41 210: my $ac = 0;
1.5 harris41 211: foreach (@Acts) {
1.2 harris41 212: my ($state,$ref) = split(/a/);
213: $ahash{$ref} = $state;
214: $achash{$ref} = $ac;
1.1 harris41 215: $ac++;
1.5 harris41 216: }
217: foreach (sort {$achash{$a} <=> $achash{$b}} (keys %ahash)) {
1.2 harris41 218: my $key = $_;
1.1 harris41 219: if ($ahash{$key} eq '1') {
1.3 harris41 220: # my $keyz=join("<br />",keys %hash);
221: # print "<br />$key<br />$keyz".$hash{'pre_'.$key.'_link'}."<br />\n";
1.2 harris41 222: $hash{'store_'.$hash{'pre_'.$key.'_link'}} =
1.1 harris41 223: $hash{'pre_'.$key.'_title'};
1.2 harris41 224: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}} =
1.1 harris41 225: $hash{'storectr'}+0;
226: $hash{'storectr'}++;
227: }
228: if ($ahash{$key} eq '0') {
229: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
230: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
231: }
232: }
1.5 harris41 233: }
234: foreach (keys %hash) {
1.1 harris41 235: if ($_ =~ /^store_/) {
1.2 harris41 236: my $key = $_;
237: $key =~ s/^store_//;
238: $shash{$key} = $hash{'storectr_'.$key};
239: $thash{$key} = $hash{'store_'.$key};
1.1 harris41 240: }
1.5 harris41 241: }
1.1 harris41 242: if ($ENV{'form.oldval'}) {
1.2 harris41 243: my $newctr = 0;
1.1 harris41 244: my %chash;
1.5 harris41 245: foreach (sort {$shash{$a} <=> $shash{$b}} (keys %shash)) {
1.2 harris41 246: my $key = $_;
1.1 harris41 247: $newctr++;
1.2 harris41 248: $shash{$key} = $newctr;
249: $hash{'storectr_'.$key} = $newctr;
250: $chash{$newctr} = $key;
1.5 harris41 251: }
1.2 harris41 252: my $oldval = $ENV{'form.oldval'};
253: my $newval = $ENV{'form.newval'};
254: if ($oldval != $newval) {
1.3 harris41 255: # when newval==0, then push down and delete
256: if ($newval!=0) {
257: $shash{$chash{$oldval}} = $newval;
258: $hash{'storectr_'.$chash{$oldval}} = $newval;
259: }
260: else {
261: $shash{$chash{$oldval}} = $newctr;
262: $hash{'storectr_'.$chash{$oldval}} = $newctr;
263: }
264: if ($newval==0) { # push down
265: my $newval2=$newctr;
266: for my $idx ($oldval..($newval2-1)) {
267: $shash{$chash{$idx+1}} = $idx;
268: $hash{'storectr_'.$chash{$idx+1}} = $idx;
269: }
270: delete $shash{$chash{$oldval}};
271: delete $hash{'storectr_'.$chash{$oldval}};
272: delete $hash{'store_'.$chash{$oldval}};
273: }
274: elsif ($oldval < $newval) { # push down
1.1 harris41 275: for my $idx ($oldval..($newval-1)) {
1.2 harris41 276: $shash{$chash{$idx+1}} = $idx;
277: $hash{'storectr_'.$chash{$idx+1}} = $idx;
1.1 harris41 278: }
279: }
1.2 harris41 280: elsif ($oldval > $newval) { # push up
1.1 harris41 281: for my $idx (reverse($newval..($oldval-1))) {
1.2 harris41 282: $shash{$chash{$idx}} = $idx+1;
283: $hash{'storectr_'.$chash{$idx}} = $idx+1;
1.1 harris41 284: }
285: }
286: }
287: }
288: } else {
1.2 harris41 289: $r->print('Unable to tie hash to db file</body></html>');
1.1 harris41 290: return OK;
291: }
292: untie %hash;
1.2 harris41 293: my $ctr = 0;
294: my $clen = scalar(keys %shash);
1.14 matthew 295: $r->print(<<END);
296: <b><font color="#888888">Finalize order of resources</font></b>
297: <form method='post' action='/adm/groupsort' name='groupsort'
298: enctype='application/x-www-form-urlencoded'>
1.1 harris41 299: <input type="hidden" name="fnum" value="$clen" />
300: <input type="hidden" name="oldval" value="" />
301: <input type="hidden" name="newval" value="" />
1.14 matthew 302: <input type="hidden" name="mode" value="$ENV{'form.mode'}" />
1.3 harris41 303: END
1.11 www 304:
305: # --- Expand here if "GO BACK" button desired
1.3 harris41 306: if ($ENV{'form.catalogmode'} eq 'groupimport') {
307: $r->print(<<END);
1.2 harris41 308: <input type="button" name="alter" value="GO BACK"
309: onClick="window.location='/res/?catalogmode=groupimport'" />
1.3 harris41 310: END
311: }
312: if ($ENV{'form.catalogmode'} eq 'groupsearch') {
313: $r->print(<<END);
1.16 matthew 314: <input type="button" name="alter" value="New Search"
315: onClick="window.location='/adm/searchcat?catalogmode=groupsearch&cleargroupsort=1'" />
1.3 harris41 316: END
1.16 matthew 317: }
1.11 www 318: # ---
319:
1.3 harris41 320: $r->print(<<END);
1.2 harris41 321: <input type="button" name="alter" value="FINISH IMPORT"
322: onClick="finish_import()" />
1.1 harris41 323: <input type="button" name="alter" value="CANCEL" onClick="self.close()" />
324: END
325: $r->print("<table border='0'><tr><td bgcolor='#eeeeee'>");
326: $r->print("<table border=0><tr>\n");
1.2 harris41 327: $r->print("<td colspan='2' bgcolor='$titleclr'><b>Change order</b></td>".
328: "\n");
1.1 harris41 329: $r->print("<td colspan='2' bgcolor='$titleclr'><b>Title</b></td>\n");
330: $r->print("<td bgcolor='$titleclr'><b>Path</b></td></tr>\n");
1.5 harris41 331: foreach (sort {$shash{$a}<=>$shash{$b}} (keys %shash)) {
1.1 harris41 332: my $key=$_;
333: $ctr++;
334: my @file_ext = split(/\./,$key);
335: my $curfext = $file_ext[scalar(@file_ext)-1];
336: $r->print("<tr><td bgcolor='$fileclr'>");
337: $r->print(&movers($clen,$ctr));
338: $r->print(&hidden($ctr-1,$thash{$key},$key));
339: $r->print("</td><td bgcolor='$fileclr'>");
340: $r->print(&select_box($clen,$ctr));
341: $r->print("</td><td bgcolor='$fileclr'>");
342: $r->print("<img src='$iconpath$curfext.gif'>");
343: $r->print("</td><td bgcolor='$fileclr'>");
344: $r->print("$thash{$key}</td><td bgcolor='$fileclr'>\n");
345: $r->print("$key</td></tr>\n");
1.5 harris41 346: }
1.1 harris41 347: $r->print("</table></td></tr></table></form>");
348: $r->print(<<END);
349: </body>
350: </html>
351: END
352: return OK;
353: }
354:
1.2 harris41 355: # --------------------------------------- Hidden values (returns scalar string)
1.1 harris41 356: sub hidden {
1.2 harris41 357: my ($sel,$title,$filelink) = @_;
358: my $string = '<input type="hidden" name="title'.$sel.'" value="'.$title.
359: '" />';
360: $string .= '<input type="hidden" name="filelink'.$sel.'" value="'.
361: $filelink.'" />';
1.1 harris41 362: return $string;
363: }
364:
1.2 harris41 365: # --------------------------------------- Moving arrows (returns scalar string)
1.1 harris41 366: sub movers {
1.2 harris41 367: my ($total,$sel) = @_;
368: my $dsel = $sel-1;
369: my $usel = $sel+1;
370: $usel = 1 if $usel > $total;
371: $dsel = $total if $dsel < 1;
1.1 harris41 372: my $string;
1.2 harris41 373: $string = (<<END);
1.1 harris41 374: <table border='0' cellspacing='0' cellpadding='0'>
1.2 harris41 375: <tr><td><a href='javascript:move($sel,$dsel)'>
376: <img src="${iconpath}move_up.gif" alt='UP' border='0' /></a></td></tr>
377: <tr><td><a href='javascript:move($sel,$usel)'>
378: <img src="${iconpath}move_down.gif" alt='DOWN' border='0' /></a></td></tr>
1.1 harris41 379: </table>
380: END
381: return $string;
382: }
1.2 harris41 383:
384: # ------------------------------------------ Select box (returns scalar string)
1.1 harris41 385: sub select_box {
1.2 harris41 386: my ($total,$sel) = @_;
1.1 harris41 387: my $string;
1.2 harris41 388: $string = '<select name="alt'.$sel.'"';
389: $string .= " onChange='selectchange($sel)'>";
1.3 harris41 390: $string .= "<option name='o0' value='0'>remove</option>";
1.1 harris41 391: for my $cur (1..$total) {
1.2 harris41 392: $string .= "<option name='o$cur' value='$cur'";
393: if ($cur == $sel) {
394: $string .= "selected";
1.1 harris41 395: }
1.2 harris41 396: $string .= ">$cur</option>";
1.1 harris41 397: }
1.2 harris41 398: $string .= "</select>\n";
1.1 harris41 399: return $string;
400: }
401:
402: 1;
403:
404: __END__
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