Annotation of loncom/interface/groupsort.pm, revision 1.33
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: #
1.33 ! www 5: # $Id: groupsort.pm,v 1.32 2005/06/08 21:13:05 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: #
1.4 harris41 29: ###
1.1 harris41 30:
31: package Apache::groupsort;
32:
33: use strict;
34:
35: use Apache::Constants qw(:common);
36: use GDBM_File;
1.15 www 37: use Apache::loncommon;
1.23 www 38: use Apache::lonlocal;
1.27 taceyjo1 39: use Apache::lonnet;
1.1 harris41 40:
1.33 ! www 41: my $iconpath; # variable to be accessible to multiple subroutines
1.2 harris41 42: my %hash; # variable to tie to user specific database
1.8 www 43:
1.2 harris41 44:
1.33 ! www 45: sub readfromdb {
! 46: my ($r,$shash,$thash)=@_;
1.9 www 47:
1.4 harris41 48: my $diropendb;
1.11 www 49: # ------------------------------ which file do we open? Easy if explictly given
1.31 albertel 50: if ($env{'form.catalogmode'} eq 'groupsearch') {
1.4 harris41 51: $diropendb =
1.31 albertel 52: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_searchcat.db";
1.33 ! www 53: } elsif ($env{'form.catalogmode'} eq 'groupimport') {
1.4 harris41 54: $diropendb =
1.31 albertel 55: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_indexer.db";
1.33 ! www 56: } elsif ($env{'form.catalogmode'} eq 'groupsec') {
1.11 www 57: $diropendb =
1.31 albertel 58: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_groupsec.db";
1.33 ! www 59: } else {
1.11 www 60: # --------------------- not explicitly given, choose the one most recently used
61: my @dbfn;
62: my @dbst;
63:
64: $dbfn[0] =
1.31 albertel 65: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_searchcat.db";
1.11 www 66: $dbst[0]=-1;
67: if (-e $dbfn[0]) {
68: $dbst[0]=(stat($dbfn[0]))[9];
1.6 harris41 69: }
1.11 www 70: $dbfn[1] =
1.31 albertel 71: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_indexer.db";
1.11 www 72: $dbst[1]=-1;
73: if (-e $dbfn[1]) {
74: $dbst[1]=(stat($dbfn[1]))[9];
1.6 harris41 75: }
1.11 www 76: $dbfn[2] =
1.31 albertel 77: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_groupsec.db";
1.11 www 78: $dbst[2]=-1;
79: if (-e $dbfn[2]) {
80: $dbst[2]=(stat($dbfn[2]))[9];
81: }
82: # Expand here for more modes
83: # ....
84:
85: # Okay, find most recent existing
86:
87: my $newest=0;
1.12 www 88: $diropendb='';
1.11 www 89: for (my $i=0; $i<=$#dbfn; $i++) {
90: if ($dbst[$i]>$newest) {
91: $newest=$dbst[$i];
92: $diropendb=$dbfn[$i];
93: }
1.6 harris41 94: }
1.11 www 95:
1.4 harris41 96: }
1.11 www 97: # ----------------------------- diropendb is now the filename of the db to open
1.13 albertel 98: if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {
1.31 albertel 99: my $acts = $env{'form.acts'};
1.2 harris41 100: my @Acts = split(/b/,$acts);
1.1 harris41 101: my %ahash;
102: my %achash;
1.2 harris41 103: my $ac = 0;
1.5 harris41 104: foreach (@Acts) {
1.2 harris41 105: my ($state,$ref) = split(/a/);
106: $ahash{$ref} = $state;
107: $achash{$ref} = $ac;
1.1 harris41 108: $ac++;
1.5 harris41 109: }
110: foreach (sort {$achash{$a} <=> $achash{$b}} (keys %ahash)) {
1.2 harris41 111: my $key = $_;
1.1 harris41 112: if ($ahash{$key} eq '1') {
1.3 harris41 113: # my $keyz=join("<br />",keys %hash);
114: # print "<br />$key<br />$keyz".$hash{'pre_'.$key.'_link'}."<br />\n";
1.2 harris41 115: $hash{'store_'.$hash{'pre_'.$key.'_link'}} =
1.1 harris41 116: $hash{'pre_'.$key.'_title'};
1.2 harris41 117: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}} =
1.1 harris41 118: $hash{'storectr'}+0;
119: $hash{'storectr'}++;
120: }
121: if ($ahash{$key} eq '0') {
122: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
123: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
124: }
125: }
1.5 harris41 126: }
127: foreach (keys %hash) {
1.1 harris41 128: if ($_ =~ /^store_/) {
1.2 harris41 129: my $key = $_;
130: $key =~ s/^store_//;
1.33 ! www 131: $$shash{$key} = $hash{'storectr_'.$key};
1.27 taceyjo1 132: if (&Apache::lonnet::gettitle($key) eq '') {
1.33 ! www 133: $$thash{$key} = $hash{'store_'.$key};
1.28 albertel 134: } else {
1.33 ! www 135: $$thash{$key} = &Apache::lonnet::gettitle($key);
1.28 albertel 136: }
1.1 harris41 137: }
1.5 harris41 138: }
1.31 albertel 139: if ($env{'form.oldval'}) {
1.2 harris41 140: my $newctr = 0;
1.1 harris41 141: my %chash;
1.33 ! www 142: foreach (sort {$$shash{$a} <=> $$shash{$b}} (keys %{$shash})) {
1.2 harris41 143: my $key = $_;
1.1 harris41 144: $newctr++;
1.33 ! www 145: $$shash{$key} = $newctr;
1.2 harris41 146: $hash{'storectr_'.$key} = $newctr;
147: $chash{$newctr} = $key;
1.5 harris41 148: }
1.31 albertel 149: my $oldval = $env{'form.oldval'};
150: my $newval = $env{'form.newval'};
1.2 harris41 151: if ($oldval != $newval) {
1.3 harris41 152: # when newval==0, then push down and delete
153: if ($newval!=0) {
1.33 ! www 154: $$shash{$chash{$oldval}} = $newval;
1.3 harris41 155: $hash{'storectr_'.$chash{$oldval}} = $newval;
1.33 ! www 156: } else {
! 157: $$shash{$chash{$oldval}} = $newctr;
1.3 harris41 158: $hash{'storectr_'.$chash{$oldval}} = $newctr;
159: }
160: if ($newval==0) { # push down
161: my $newval2=$newctr;
162: for my $idx ($oldval..($newval2-1)) {
1.33 ! www 163: $$shash{$chash{$idx+1}} = $idx;
1.3 harris41 164: $hash{'storectr_'.$chash{$idx+1}} = $idx;
165: }
1.33 ! www 166: delete $$shash{$chash{$oldval}};
1.3 harris41 167: delete $hash{'storectr_'.$chash{$oldval}};
168: delete $hash{'store_'.$chash{$oldval}};
1.33 ! www 169: } elsif ($oldval < $newval) { # push down
1.1 harris41 170: for my $idx ($oldval..($newval-1)) {
1.33 ! www 171: $$shash{$chash{$idx+1}} = $idx;
1.2 harris41 172: $hash{'storectr_'.$chash{$idx+1}} = $idx;
1.1 harris41 173: }
1.33 ! www 174: } elsif ($oldval > $newval) { # push up
1.1 harris41 175: for my $idx (reverse($newval..($oldval-1))) {
1.33 ! www 176: $$shash{$chash{$idx}} = $idx+1;
1.2 harris41 177: $hash{'storectr_'.$chash{$idx}} = $idx+1;
1.1 harris41 178: }
179: }
180: }
181: }
182: } else {
1.2 harris41 183: $r->print('Unable to tie hash to db file</body></html>');
1.1 harris41 184: return OK;
185: }
186: untie %hash;
1.33 ! www 187: return ($shash,$thash);
! 188: }
! 189:
! 190:
! 191:
! 192: sub cleanup {
! 193: if (tied(%hash)){
! 194: &Apache::lonnet::logthis('Cleanup groupsort: hash');
! 195: unless (untie(%hash)) {
! 196: &Apache::lonnet::logthis('Failed cleanup groupsort: hash');
! 197: }
! 198: }
! 199: }
! 200:
! 201: # ---------------------------------------------------------------- Main Handler
! 202: sub handler {
! 203: my $r = shift;
! 204:
! 205: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
! 206: ['acts','catalogmode','mode']);
! 207: # color scheme
! 208: my $fileclr = '#ffffe6';
! 209: my $titleclr = '#ddffff';
! 210:
! 211: &Apache::loncommon::content_type($r,'text/html');
! 212: $r->send_http_header;
! 213: return OK if $r->header_only;
! 214:
! 215: # finish_import looks different for graphical or "simple" RAT
! 216: my $finishimport='';
! 217: if ($env{'form.mode'} eq 'simple' || $env{'form.mode'} eq '') {
! 218: $finishimport=(<<ENDSMP);
! 219: function finish_import() {
! 220: opener.document.forms.simpleedit.importdetail.value='';
! 221: for (var num=0; num<document.forms.groupsort.fnum.value; num++) {
! 222: opener.document.forms.simpleedit.importdetail.value+='&'+
! 223: escape(eval("document.forms.groupsort.title"+num+".value"))+'='+
! 224: escape(eval("document.forms.groupsort.filelink"+num+".value"));
! 225: }
! 226: opener.document.forms.simpleedit.submit();
! 227: self.close();
! 228: }
! 229: ENDSMP
! 230: } else {
! 231: $finishimport=(<<ENDADV);
! 232: function finish_import() {
! 233: var linkflag=false;
! 234: for (var num=0; num<document.forms.groupsort.fnum.value; num++) {
! 235: insertRowInLastRow();
! 236: placeResourceInLastRow(
! 237: eval("document.forms.groupsort.title"+num+".value"),
! 238: eval("document.forms.groupsort.filelink"+num+".value"),
! 239: linkflag
! 240: );
! 241: linkflag=true;
! 242: }
! 243: opener.editmode=0;
! 244: opener.notclear=0;
! 245: opener.linkmode=0;
! 246: opener.draw();
! 247: self.close();
! 248: }
! 249: ENDADV
! 250: }
! 251:
! 252: # output start of web page
! 253: my $html=&Apache::lonxml::xmlbegin();
! 254: $r->print(<<END);
! 255: $html
! 256: <head>
! 257: <title>The LearningOnline Network With CAPA Group Sorter</title>
! 258: <script language='javascript'>
! 259: function insertRowInLastRow() {
! 260: opener.insertrow(opener.maxrow);
! 261: opener.addobj(opener.maxrow,'e&2');
! 262: }
! 263: function placeResourceInLastRow (title,url,linkflag) {
! 264: opener.mostrecent=opener.newresource(opener.maxrow,2,opener.escape(title),
! 265: opener.escape(url),'false','normal');
! 266: opener.save();
! 267: if (linkflag) {
! 268: opener.joinres(opener.linkmode,opener.mostrecent,0);
! 269: }
! 270: opener.linkmode=opener.mostrecent;
! 271: }
! 272: $finishimport
! 273: function selectchange(val) {
! 274: var newval=0+eval("document.forms.groupsort.alt"+val+".selectedIndex");
! 275: orderchange(val,newval);
! 276: }
! 277: function move(val,newval) {
! 278: orderchange(val,newval);
! 279: }
! 280: function orderchange(val,newval) {
! 281: document.forms.groupsort.oldval.value=val;
! 282: document.forms.groupsort.newval.value=newval;
! 283: document.forms.groupsort.submit();
! 284: }
! 285: </script>
! 286: </head>
! 287: END
! 288: # read pertinent machine configuration
! 289: my $domain = $r->dir_config('lonDefDomain');
! 290: $iconpath = $r->dir_config('lonIconsURL') . "/";
! 291:
! 292: my %shash; # sort order (key is resource location, value is sort order)
! 293: my %thash; # title (key is resource location, value is title)
! 294:
! 295: &readfromdb($r,\%shash,\%thash);
! 296:
1.2 harris41 297: my $ctr = 0;
298: my $clen = scalar(keys %shash);
1.22 albertel 299: if ($clen > 1) {
1.23 www 300: my %lt=&Apache::lonlocal::texthash(
301: 'fin'=> 'Finalize order of resources',
302: 'gb' => 'Go Back',
303: 'ns' => 'New Search',
304: 'fi' => 'Finish Import',
305: 'ca' => 'Cancel',
306: 'co' => 'Change Order',
307: 'ti' => 'Title',
308: 'pa' => 'Path'
309: );
1.22 albertel 310: $r->print(&Apache::loncommon::bodytag('Sort Imported Resources'));
311: $r->print(<<END);
1.23 www 312: <b><font color="#888888">$lt{'fin'}</font></b>
1.14 matthew 313: <form method='post' action='/adm/groupsort' name='groupsort'
314: enctype='application/x-www-form-urlencoded'>
1.1 harris41 315: <input type="hidden" name="fnum" value="$clen" />
316: <input type="hidden" name="oldval" value="" />
317: <input type="hidden" name="newval" value="" />
1.31 albertel 318: <input type="hidden" name="mode" value="$env{'form.mode'}" />
1.3 harris41 319: END
1.11 www 320:
1.22 albertel 321: # --- Expand here if "GO BACK" button desired
1.31 albertel 322: if ($env{'form.catalogmode'} eq 'groupimport') {
1.29 matthew 323: my $resurl = &Apache::loncommon::lastresurl();
1.22 albertel 324: $r->print(<<END);
1.23 www 325: <input type="button" name="alter" value="$lt{'gb'}"
1.29 matthew 326: onClick="window.location='$resurl?catalogmode=groupimport'" />
1.3 harris41 327: END
1.22 albertel 328: }
1.31 albertel 329: if ($env{'form.catalogmode'} eq 'groupsearch') {
1.22 albertel 330: $r->print(<<END);
1.23 www 331: <input type="button" name="alter" value="$lt{'ns'}"
1.16 matthew 332: onClick="window.location='/adm/searchcat?catalogmode=groupsearch&cleargroupsort=1'" />
1.3 harris41 333: END
1.22 albertel 334: }
335: # ---
1.11 www 336:
1.22 albertel 337: $r->print(<<END);
1.23 www 338: <input type="button" name="alter" value="$lt{'fi'}"
1.2 harris41 339: onClick="finish_import()" />
1.23 www 340: <input type="button" name="alter" value="$lt{'ca'}" onClick="self.close()" />
1.1 harris41 341: END
1.22 albertel 342: $r->print("<table border='0'><tr><td bgcolor='#eeeeee'>");
343: $r->print("<table border=0><tr>\n");
1.23 www 344: $r->print("<td colspan='2' bgcolor='$titleclr'><b>$lt{'co'}</b></td>\n");
345: $r->print("<td colspan='2' bgcolor='$titleclr'><b>$lt{'ti'}</b></td>\n");
346: $r->print("<td bgcolor='$titleclr'><b>$lt{'pa'}</b></td></tr>\n");
1.22 albertel 347: } else {
348: $r->print(<<END);
349: <body>
350: <form method='post' action='/adm/groupsort' name='groupsort'
351: enctype='application/x-www-form-urlencoded'>
352: <input type="hidden" name="fnum" value="$clen" />
353: <input type="hidden" name="oldval" value="" />
354: <input type="hidden" name="newval" value="" />
1.31 albertel 355: <input type="hidden" name="mode" value="$env{'form.mode'}" />
1.22 albertel 356: END
357: }
1.5 harris41 358: foreach (sort {$shash{$a}<=>$shash{$b}} (keys %shash)) {
1.1 harris41 359: my $key=$_;
360: $ctr++;
1.25 albertel 361: my $iconname=&Apache::loncommon::icon($key);
1.22 albertel 362: if ($clen > 1) {
363: $r->print("<tr><td bgcolor='$fileclr'>");
364: $r->print(&movers($clen,$ctr));
365: }
1.1 harris41 366: $r->print(&hidden($ctr-1,$thash{$key},$key));
1.22 albertel 367: if ($clen > 1) {
368: $r->print("</td><td bgcolor='$fileclr'>");
369: $r->print(&select_box($clen,$ctr));
370: $r->print("</td><td bgcolor='$fileclr'>");
1.26 albertel 371: $r->print("<img src='$iconname' />");
1.22 albertel 372: $r->print("</td><td bgcolor='$fileclr'>");
373: $r->print("$thash{$key}</td><td bgcolor='$fileclr'>\n");
374: $r->print("$key</td></tr>\n");
375: }
376: }
377: if ($clen > 1) {
378: $r->print("</table></td></tr></table></form>");
379: } else {
380: $r->print(<<END);
381: <script type="text/javascript">
382: finish_import();
383: </script>
384: END
385: }
1.1 harris41 386: $r->print(<<END);
387: </body>
388: </html>
389: END
1.22 albertel 390:
1.1 harris41 391: return OK;
392: }
393:
1.2 harris41 394: # --------------------------------------- Hidden values (returns scalar string)
1.1 harris41 395: sub hidden {
1.2 harris41 396: my ($sel,$title,$filelink) = @_;
397: my $string = '<input type="hidden" name="title'.$sel.'" value="'.$title.
398: '" />';
399: $string .= '<input type="hidden" name="filelink'.$sel.'" value="'.
400: $filelink.'" />';
1.1 harris41 401: return $string;
402: }
403:
1.2 harris41 404: # --------------------------------------- Moving arrows (returns scalar string)
1.1 harris41 405: sub movers {
1.2 harris41 406: my ($total,$sel) = @_;
407: my $dsel = $sel-1;
408: my $usel = $sel+1;
409: $usel = 1 if $usel > $total;
410: $dsel = $total if $dsel < 1;
1.1 harris41 411: my $string;
1.2 harris41 412: $string = (<<END);
1.1 harris41 413: <table border='0' cellspacing='0' cellpadding='0'>
1.2 harris41 414: <tr><td><a href='javascript:move($sel,$dsel)'>
415: <img src="${iconpath}move_up.gif" alt='UP' border='0' /></a></td></tr>
416: <tr><td><a href='javascript:move($sel,$usel)'>
417: <img src="${iconpath}move_down.gif" alt='DOWN' border='0' /></a></td></tr>
1.1 harris41 418: </table>
419: END
420: return $string;
421: }
1.2 harris41 422:
423: # ------------------------------------------ Select box (returns scalar string)
1.1 harris41 424: sub select_box {
1.2 harris41 425: my ($total,$sel) = @_;
1.1 harris41 426: my $string;
1.2 harris41 427: $string = '<select name="alt'.$sel.'"';
428: $string .= " onChange='selectchange($sel)'>";
1.3 harris41 429: $string .= "<option name='o0' value='0'>remove</option>";
1.1 harris41 430: for my $cur (1..$total) {
1.2 harris41 431: $string .= "<option name='o$cur' value='$cur'";
432: if ($cur == $sel) {
433: $string .= "selected";
1.1 harris41 434: }
1.2 harris41 435: $string .= ">$cur</option>";
1.1 harris41 436: }
1.2 harris41 437: $string .= "</select>\n";
1.1 harris41 438: return $string;
439: }
440:
441: 1;
442:
443: __END__
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