loncom/interface/groupsort.pm - view

File: [LON-CAPA] / loncom / interface / groupsort.pm
Revision 1.21: download - view: text, annotated - select for diffs
Sat Jun 14 00:15:01 2003 UTC (21 years ago) by albertel
Branches: MAIN
CVS tags: version_1_0_2, version_1_0_1, version_1_0_0, version_0_99_5, version_0_99_4, version_0_99_3, HEAD

- should be using the _users_ domain not the servers domain, (lonsequence.pm was already doing this, only by luck was this not blowing up.)

1: # The LearningOnline Network with CAPA 2: # The LON-CAPA group sort handler 3: # Allows for sorting prior to import into RAT. 4: # 5: # $Id: groupsort.pm,v 1.21 2003/06/14 00:15:01 albertel Exp $ 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. 20: # 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 26: # 27: # http://www.lon-capa.org/ 28: # 29: # YEAR=2001 30: # YEAR=2002 31: # 32: ### 33: 34: package Apache::groupsort; 35: 36: use strict; 37: 38: use Apache::Constants qw(:common); 39: use GDBM_File; 40: use Apache::loncommon; 41: 42: my %hash; # variable to tie to user specific database 43: my $iconpath; # variable to be accessible to multiple subroutines 44: 45: sub cleanup { 46: if (tied(%hash)){ 47: &Apache::lonnet::logthis('Cleanup groupsort: hash'); 48: unless (untie(%hash)) { 49: &Apache::lonnet::logthis('Failed cleanup groupsort: hash'); 50: } 51: } 52: } 53: 54: # ---------------------------------------------------------------- Main Handler 55: sub handler { 56: my $r = shift; 57: 58: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, 59: ['acts','catalogmode','mode']); 60: # color scheme 61: my $fileclr = '#ffffe6'; 62: my $titleclr = '#ddffff'; 63: 64: $r->content_type('text/html'); 65: $r->send_http_header; 66: return OK if $r->header_only; 67: 68: # finish_import looks different for graphical or "simple" RAT 69: my $finishimport=''; 70: if ($ENV{'form.mode'} eq 'simple') { 71: $finishimport=(<<ENDSMP); 72: function finish_import() { 73: opener.document.forms.simpleedit.importdetail.value=''; 74: for (var num=0; num<document.forms.groupsort.fnum.value; num++) { 75: opener.document.forms.simpleedit.importdetail.value+='&'+ 76: escape(eval("document.forms.groupsort.title"+num+".value"))+'='+ 77: escape(eval("document.forms.groupsort.filelink"+num+".value")); 78: } 79: opener.document.forms.simpleedit.submit(); 80: self.close(); 81: } 82: ENDSMP 83: } else { 84: $finishimport=(<<ENDADV); 85: function finish_import() { 86: var linkflag=false; 87: for (var num=0; num<document.forms.groupsort.fnum.value; num++) { 88: insertRowInLastRow(); 89: placeResourceInLastRow( 90: eval("document.forms.groupsort.title"+num+".value"), 91: eval("document.forms.groupsort.filelink"+num+".value"), 92: linkflag 93: ); 94: linkflag=true; 95: } 96: opener.editmode=0; 97: opener.notclear=0; 98: opener.linkmode=0; 99: opener.draw(); 100: self.close(); 101: } 102: ENDADV 103: } 104: 105: # output start of web page 106: 107: $r->print(<<END); 108: <html> 109: <head> 110: <title>The LearningOnline Network With CAPA Group Sorter</title> 111: <script language='javascript'> 112: function insertRowInLastRow() { 113: opener.insertrow(opener.maxrow); 114: opener.addobj(opener.maxrow,'e&2'); 115: } 116: function placeResourceInLastRow (title,url,linkflag) { 117: opener.newresource(opener.maxrow,2,opener.escape(title), 118: opener.escape(url),'false','normal'); 119: opener.save(); 120: opener.mostrecent=opener.obj.length-1; 121: if (linkflag) { 122: opener.joinres(opener.linkmode,opener.mostrecent,0); 123: } 124: opener.linkmode=opener.mostrecent; 125: } 126: $finishimport 127: function selectchange(val) { 128: var newval=0+eval("document.forms.groupsort.alt"+val+".selectedIndex"); 129: orderchange(val,newval); 130: } 131: function move(val,newval) { 132: orderchange(val,newval); 133: } 134: function orderchange(val,newval) { 135: document.forms.groupsort.oldval.value=val; 136: document.forms.groupsort.newval.value=newval; 137: document.forms.groupsort.submit(); 138: } 139: </script> 140: </head> 141: END 142: $r->print(&Apache::loncommon::bodytag('Sort Imported Resources')); 143: # read pertinent machine configuration 144: my $domain = $r->dir_config('lonDefDomain'); 145: $iconpath = $r->dir_config('lonIconsURL') . "/"; 146: 147: my %shash; # sort order (key is resource location, value is sort order) 148: my %thash; # title (key is resource location, value is title) 149: 150: my $diropendb; 151: # ------------------------------ which file do we open? Easy if explictly given 152: if ($ENV{'form.catalogmode'} eq 'groupsearch') { 153: $diropendb = 154: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_searchcat.db"; 155: } 156: elsif ($ENV{'form.catalogmode'} eq 'groupimport') { 157: $diropendb = 158: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_indexer.db"; 159: } 160: elsif ($ENV{'form.catalogmode'} eq 'groupsec') { 161: $diropendb = 162: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_groupsec.db"; 163: } 164: # --------------------- not explicitly given, choose the one most recently used 165: else { # choose last accessed 166: my @dbfn; 167: my @dbst; 168: 169: $dbfn[0] = 170: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_searchcat.db"; 171: $dbst[0]=-1; 172: if (-e $dbfn[0]) { 173: $dbst[0]=(stat($dbfn[0]))[9]; 174: } 175: $dbfn[1] = 176: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_indexer.db"; 177: $dbst[1]=-1; 178: if (-e $dbfn[1]) { 179: $dbst[1]=(stat($dbfn[1]))[9]; 180: } 181: $dbfn[2] = 182: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_groupsec.db"; 183: $dbst[2]=-1; 184: if (-e $dbfn[2]) { 185: $dbst[2]=(stat($dbfn[2]))[9]; 186: } 187: # Expand here for more modes 188: # .... 189: 190: # Okay, find most recent existing 191: 192: my $newest=0; 193: $diropendb=''; 194: for (my $i=0; $i<=$#dbfn; $i++) { 195: if ($dbst[$i]>$newest) { 196: $newest=$dbst[$i]; 197: $diropendb=$dbfn[$i]; 198: } 199: } 200: 201: } 202: # ----------------------------- diropendb is now the filename of the db to open 203: if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) { 204: my $acts = $ENV{'form.acts'}; 205: my @Acts = split(/b/,$acts); 206: my %ahash; 207: my %achash; 208: my $ac = 0; 209: foreach (@Acts) { 210: my ($state,$ref) = split(/a/); 211: $ahash{$ref} = $state; 212: $achash{$ref} = $ac; 213: $ac++; 214: } 215: foreach (sort {$achash{$a} <=> $achash{$b}} (keys %ahash)) { 216: my $key = $_; 217: if ($ahash{$key} eq '1') { 218: # my $keyz=join("<br />",keys %hash); 219: # print "<br />$key<br />$keyz".$hash{'pre_'.$key.'_link'}."<br />\n"; 220: $hash{'store_'.$hash{'pre_'.$key.'_link'}} = 221: $hash{'pre_'.$key.'_title'}; 222: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}} = 223: $hash{'storectr'}+0; 224: $hash{'storectr'}++; 225: } 226: if ($ahash{$key} eq '0') { 227: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) { 228: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}}; 229: } 230: } 231: } 232: foreach (keys %hash) { 233: if ($_ =~ /^store_/) { 234: my $key = $_; 235: $key =~ s/^store_//; 236: $shash{$key} = $hash{'storectr_'.$key}; 237: $thash{$key} = $hash{'store_'.$key}; 238: } 239: } 240: if ($ENV{'form.oldval'}) { 241: my $newctr = 0; 242: my %chash; 243: foreach (sort {$shash{$a} <=> $shash{$b}} (keys %shash)) { 244: my $key = $_; 245: $newctr++; 246: $shash{$key} = $newctr; 247: $hash{'storectr_'.$key} = $newctr; 248: $chash{$newctr} = $key; 249: } 250: my $oldval = $ENV{'form.oldval'}; 251: my $newval = $ENV{'form.newval'}; 252: if ($oldval != $newval) { 253: # when newval==0, then push down and delete 254: if ($newval!=0) { 255: $shash{$chash{$oldval}} = $newval; 256: $hash{'storectr_'.$chash{$oldval}} = $newval; 257: } 258: else { 259: $shash{$chash{$oldval}} = $newctr; 260: $hash{'storectr_'.$chash{$oldval}} = $newctr; 261: } 262: if ($newval==0) { # push down 263: my $newval2=$newctr; 264: for my $idx ($oldval..($newval2-1)) { 265: $shash{$chash{$idx+1}} = $idx; 266: $hash{'storectr_'.$chash{$idx+1}} = $idx; 267: } 268: delete $shash{$chash{$oldval}}; 269: delete $hash{'storectr_'.$chash{$oldval}}; 270: delete $hash{'store_'.$chash{$oldval}}; 271: } 272: elsif ($oldval < $newval) { # push down 273: for my $idx ($oldval..($newval-1)) { 274: $shash{$chash{$idx+1}} = $idx; 275: $hash{'storectr_'.$chash{$idx+1}} = $idx; 276: } 277: } 278: elsif ($oldval > $newval) { # push up 279: for my $idx (reverse($newval..($oldval-1))) { 280: $shash{$chash{$idx}} = $idx+1; 281: $hash{'storectr_'.$chash{$idx}} = $idx+1; 282: } 283: } 284: } 285: } 286: } else { 287: $r->print('Unable to tie hash to db file</body></html>'); 288: return OK; 289: } 290: untie %hash; 291: my $ctr = 0; 292: my $clen = scalar(keys %shash); 293: $r->print(<<END); 294: <b><font color="#888888">Finalize order of resources</font></b> 295: <form method='post' action='/adm/groupsort' name='groupsort' 296: enctype='application/x-www-form-urlencoded'> 297: <input type="hidden" name="fnum" value="$clen" /> 298: <input type="hidden" name="oldval" value="" /> 299: <input type="hidden" name="newval" value="" /> 300: <input type="hidden" name="mode" value="$ENV{'form.mode'}" /> 301: END 302: 303: # --- Expand here if "GO BACK" button desired 304: if ($ENV{'form.catalogmode'} eq 'groupimport') { 305: $r->print(<<END); 306: <input type="button" name="alter" value="GO BACK" 307: onClick="window.location='/res/?catalogmode=groupimport'" />  308: END 309: } 310: if ($ENV{'form.catalogmode'} eq 'groupsearch') { 311: $r->print(<<END); 312: <input type="button" name="alter" value="New Search" 313: onClick="window.location='/adm/searchcat?catalogmode=groupsearch&cleargroupsort=1'" />  314: END 315: } 316: # --- 317: 318: $r->print(<<END); 319: <input type="button" name="alter" value="FINISH IMPORT" 320: onClick="finish_import()" />  321: <input type="button" name="alter" value="CANCEL" onClick="self.close()" /> 322: END 323: $r->print("<table border='0'><tr><td bgcolor='#eeeeee'>"); 324: $r->print("<table border=0><tr>\n"); 325: $r->print("<td colspan='2' bgcolor='$titleclr'><b>Change order</b></td>". 326: "\n"); 327: $r->print("<td colspan='2' bgcolor='$titleclr'><b>Title</b></td>\n"); 328: $r->print("<td bgcolor='$titleclr'><b>Path</b></td></tr>\n"); 329: foreach (sort {$shash{$a}<=>$shash{$b}} (keys %shash)) { 330: my $key=$_; 331: $ctr++; 332: my @file_ext = split(/\./,$key); 333: my $curfext = $file_ext[scalar(@file_ext)-1]; 334: my $iconname="unknown.gif"; 335: my $embstyle = &Apache::loncommon::fileembstyle($curfext); 336: # The unless conditional that follows is a bit of overkill 337: $iconname = $curfext.".gif" unless 338: (!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn'); 339: $r->print("<tr><td bgcolor='$fileclr'>"); 340: $r->print(&movers($clen,$ctr)); 341: $r->print(&hidden($ctr-1,$thash{$key},$key)); 342: $r->print("</td><td bgcolor='$fileclr'>"); 343: $r->print(&select_box($clen,$ctr)); 344: $r->print("</td><td bgcolor='$fileclr'>"); 345: $r->print("<img src='$iconpath$iconname'>"); 346: $r->print("</td><td bgcolor='$fileclr'>"); 347: $r->print("$thash{$key}</td><td bgcolor='$fileclr'>\n"); 348: $r->print("$key</td></tr>\n"); 349: } 350: $r->print("</table></td></tr></table></form>"); 351: $r->print(<<END); 352: </body> 353: </html> 354: END 355: return OK; 356: } 357: 358: # --------------------------------------- Hidden values (returns scalar string) 359: sub hidden { 360: my ($sel,$title,$filelink) = @_; 361: my $string = '<input type="hidden" name="title'.$sel.'" value="'.$title. 362: '" />'; 363: $string .= '<input type="hidden" name="filelink'.$sel.'" value="'. 364: $filelink.'" />'; 365: return $string; 366: } 367: 368: # --------------------------------------- Moving arrows (returns scalar string) 369: sub movers { 370: my ($total,$sel) = @_; 371: my $dsel = $sel-1; 372: my $usel = $sel+1; 373: $usel = 1 if $usel > $total; 374: $dsel = $total if $dsel < 1; 375: my $string; 376: $string = (<<END); 377: <table border='0' cellspacing='0' cellpadding='0'> 378: <tr><td><a href='javascript:move($sel,$dsel)'> 379: <img src="${iconpath}move_up.gif" alt='UP' border='0' /></a></td></tr> 380: <tr><td><a href='javascript:move($sel,$usel)'> 381: <img src="${iconpath}move_down.gif" alt='DOWN' border='0' /></a></td></tr> 382: </table> 383: END 384: return $string; 385: } 386: 387: # ------------------------------------------ Select box (returns scalar string) 388: sub select_box { 389: my ($total,$sel) = @_; 390: my $string; 391: $string = '<select name="alt'.$sel.'"'; 392: $string .= " onChange='selectchange($sel)'>"; 393: $string .= "<option name='o0' value='0'>remove</option>"; 394: for my $cur (1..$total) { 395: $string .= "<option name='o$cur' value='$cur'"; 396: if ($cur == $sel) { 397: $string .= "selected"; 398: } 399: $string .= ">$cur</option>"; 400: } 401: $string .= "</select>\n"; 402: return $string; 403: } 404: 405: 1; 406: 407: __END__