loncom/interface/groupsort.pm - view

File: [LON-CAPA] / loncom / interface / groupsort.pm
Revision 1.14: download - view: text, annotated - select for diffs
Fri Aug 16 17:03:23 2002 UTC (21 years, 10 months ago) by matthew
Branches: MAIN
CVS tags: version_0_5_1, version_0_5, HEAD

Fix a bug which caused groupimport to forget its mode.

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 1.14 2002/08/16 17:03:23 matthew 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: # 8/7,8/8,10/14,10/15,12/10 Scott Harrison 31: # YEAR=2002 32: # 1/17 Scott Harrison 33: # 34: ### 35: 36: package Apache::groupsort; 37: 38: use strict; 39: 40: use Apache::Constants qw(:common); 41: use GDBM_File; 42: 43: my %hash; # variable to tie to user specific database 44: my $iconpath; # variable to be accessible to multiple subroutines 45: 46: # ---------------------------------------------------------------- Main Handler 47: sub handler { 48: my $r = shift; 49: 50: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, 51: ['acts','catalogmode','mode']); 52: # color scheme 53: my $fileclr = '#ffffe6'; 54: my $titleclr = '#ddffff'; 55: 56: $r->content_type('text/html'); 57: $r->send_http_header; 58: return OK if $r->header_only; 59: 60: # finish_import looks different for graphical or "simple" RAT 61: my $finishimport=''; 62: if ($ENV{'form.mode'} eq 'simple') { 63: $finishimport=(<<ENDSMP); 64: function finish_import() { 65: opener.document.forms.simpleedit.importdetail.value=''; 66: for (var num=0; num<document.forms.groupsort.fnum.value; num++) { 67: opener.document.forms.simpleedit.importdetail.value+='&'+ 68: escape(eval("document.forms.groupsort.title"+num+".value"))+'='+ 69: escape(eval("document.forms.groupsort.filelink"+num+".value")); 70: } 71: opener.document.forms.simpleedit.submit(); 72: self.close(); 73: } 74: ENDSMP 75: } else { 76: $finishimport=(<<ENDADV); 77: function finish_import() { 78: var linkflag=false; 79: for (var num=0; num<document.forms.groupsort.fnum.value; num++) { 80: insertRowInLastRow(); 81: placeResourceInLastRow( 82: eval("document.forms.groupsort.title"+num+".value"), 83: eval("document.forms.groupsort.filelink"+num+".value"), 84: linkflag 85: ); 86: linkflag=true; 87: } 88: opener.editmode=0; 89: opener.notclear=0; 90: opener.linkmode=0; 91: opener.draw(); 92: self.close(); 93: } 94: ENDADV 95: } 96: 97: # output start of web page 98: 99: $r->print(<<END); 100: <html> 101: <head> 102: <title>The LearningOnline Network With CAPA Group Sorter</title> 103: <script language='javascript'> 104: function insertRowInLastRow() { 105: opener.insertrow(opener.maxrow); 106: opener.addobj(opener.maxrow,'e&2'); 107: } 108: function placeResourceInLastRow (title,url,linkflag) { 109: opener.newresource(opener.maxrow,2,opener.escape(title), 110: opener.escape(url),'false','normal'); 111: opener.save(); 112: opener.mostrecent=opener.obj.length-1; 113: if (linkflag) { 114: opener.joinres(opener.linkmode,opener.mostrecent,0); 115: } 116: opener.linkmode=opener.mostrecent; 117: } 118: $finishimport 119: function selectchange(val) { 120: var newval=0+eval("document.forms.groupsort.alt"+val+".selectedIndex"); 121: orderchange(val,newval); 122: } 123: function move(val,newval) { 124: orderchange(val,newval); 125: } 126: function orderchange(val,newval) { 127: document.forms.groupsort.oldval.value=val; 128: document.forms.groupsort.newval.value=newval; 129: document.forms.groupsort.submit(); 130: } 131: </script> 132: </head> 133: <body bgcolor="#FFFFFF"> 134: END 135: 136: # read pertinent machine configuration 137: my $domain = $r->dir_config('lonDefDomain'); 138: $iconpath = $r->dir_config('lonIconsURL') . "/"; 139: 140: my %shash; # sort order (key is resource location, value is sort order) 141: my %thash; # title (key is resource location, value is title) 142: 143: my $diropendb; 144: # ------------------------------ which file do we open? Easy if explictly given 145: if ($ENV{'form.catalogmode'} eq 'groupsearch') { 146: $diropendb = 147: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_searchcat.db"; 148: } 149: elsif ($ENV{'form.catalogmode'} eq 'groupimport') { 150: $diropendb = 151: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db"; 152: } 153: elsif ($ENV{'form.catalogmode'} eq 'groupsec') { 154: $diropendb = 155: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_groupsec.db"; 156: } 157: # --------------------- not explicitly given, choose the one most recently used 158: else { # choose last accessed 159: my @dbfn; 160: my @dbst; 161: 162: $dbfn[0] = 163: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_searchcat.db"; 164: $dbst[0]=-1; 165: if (-e $dbfn[0]) { 166: $dbst[0]=(stat($dbfn[0]))[9]; 167: } 168: $dbfn[1] = 169: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db"; 170: $dbst[1]=-1; 171: if (-e $dbfn[1]) { 172: $dbst[1]=(stat($dbfn[1]))[9]; 173: } 174: $dbfn[2] = 175: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_groupsec.db"; 176: $dbst[2]=-1; 177: if (-e $dbfn[2]) { 178: $dbst[2]=(stat($dbfn[2]))[9]; 179: } 180: # Expand here for more modes 181: # .... 182: 183: # Okay, find most recent existing 184: 185: my $newest=0; 186: $diropendb=''; 187: for (my $i=0; $i<=$#dbfn; $i++) { 188: if ($dbst[$i]>$newest) { 189: $newest=$dbst[$i]; 190: $diropendb=$dbfn[$i]; 191: } 192: } 193: 194: } 195: # ----------------------------- diropendb is now the filename of the db to open 196: if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) { 197: my $acts = $ENV{'form.acts'}; 198: my @Acts = split(/b/,$acts); 199: my %ahash; 200: my %achash; 201: my $ac = 0; 202: foreach (@Acts) { 203: my ($state,$ref) = split(/a/); 204: $ahash{$ref} = $state; 205: $achash{$ref} = $ac; 206: $ac++; 207: } 208: foreach (sort {$achash{$a} <=> $achash{$b}} (keys %ahash)) { 209: my $key = $_; 210: if ($ahash{$key} eq '1') { 211: # my $keyz=join("<br />",keys %hash); 212: # print "<br />$key<br />$keyz".$hash{'pre_'.$key.'_link'}."<br />\n"; 213: $hash{'store_'.$hash{'pre_'.$key.'_link'}} = 214: $hash{'pre_'.$key.'_title'}; 215: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}} = 216: $hash{'storectr'}+0; 217: $hash{'storectr'}++; 218: } 219: if ($ahash{$key} eq '0') { 220: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) { 221: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}}; 222: } 223: } 224: } 225: foreach (keys %hash) { 226: if ($_ =~ /^store_/) { 227: my $key = $_; 228: $key =~ s/^store_//; 229: $shash{$key} = $hash{'storectr_'.$key}; 230: $thash{$key} = $hash{'store_'.$key}; 231: } 232: } 233: if ($ENV{'form.oldval'}) { 234: my $newctr = 0; 235: my %chash; 236: foreach (sort {$shash{$a} <=> $shash{$b}} (keys %shash)) { 237: my $key = $_; 238: $newctr++; 239: $shash{$key} = $newctr; 240: $hash{'storectr_'.$key} = $newctr; 241: $chash{$newctr} = $key; 242: } 243: my $oldval = $ENV{'form.oldval'}; 244: my $newval = $ENV{'form.newval'}; 245: if ($oldval != $newval) { 246: # when newval==0, then push down and delete 247: if ($newval!=0) { 248: $shash{$chash{$oldval}} = $newval; 249: $hash{'storectr_'.$chash{$oldval}} = $newval; 250: } 251: else { 252: $shash{$chash{$oldval}} = $newctr; 253: $hash{'storectr_'.$chash{$oldval}} = $newctr; 254: } 255: if ($newval==0) { # push down 256: my $newval2=$newctr; 257: for my $idx ($oldval..($newval2-1)) { 258: $shash{$chash{$idx+1}} = $idx; 259: $hash{'storectr_'.$chash{$idx+1}} = $idx; 260: } 261: delete $shash{$chash{$oldval}}; 262: delete $hash{'storectr_'.$chash{$oldval}}; 263: delete $hash{'store_'.$chash{$oldval}}; 264: } 265: elsif ($oldval < $newval) { # push down 266: for my $idx ($oldval..($newval-1)) { 267: $shash{$chash{$idx+1}} = $idx; 268: $hash{'storectr_'.$chash{$idx+1}} = $idx; 269: } 270: } 271: elsif ($oldval > $newval) { # push up 272: for my $idx (reverse($newval..($oldval-1))) { 273: $shash{$chash{$idx}} = $idx+1; 274: $hash{'storectr_'.$chash{$idx}} = $idx+1; 275: } 276: } 277: } 278: } 279: } else { 280: $r->print('Unable to tie hash to db file</body></html>'); 281: return OK; 282: } 283: untie %hash; 284: my $ctr = 0; 285: my $clen = scalar(keys %shash); 286: $r->print(<<END); 287: <h2><font color="#888888"> 288: The LearningOnline Network With CAPA Group Sorter 289: </font></h2> 290: <b><font color="#888888">Finalize order of resources</font></b> 291: <form method='post' action='/adm/groupsort' name='groupsort' 292: enctype='application/x-www-form-urlencoded'> 293: <input type="hidden" name="fnum" value="$clen" /> 294: <input type="hidden" name="oldval" value="" /> 295: <input type="hidden" name="newval" value="" /> 296: <input type="hidden" name="mode" value="$ENV{'form.mode'}" /> 297: END 298: 299: # --- Expand here if "GO BACK" button desired 300: if ($ENV{'form.catalogmode'} eq 'groupimport') { 301: $r->print(<<END); 302: <input type="button" name="alter" value="GO BACK" 303: onClick="window.location='/res/?catalogmode=groupimport'" />  304: END 305: } 306: if ($ENV{'form.catalogmode'} eq 'groupsearch') { 307: $r->print(<<END); 308: <input type="button" name="alter" value="GO BACK" 309: onClick="window.location='/adm/searchcat?catalogmode=groupsearch'" />  310: END 311: } 312: # --- 313: 314: $r->print(<<END); 315: <input type="button" name="alter" value="FINISH IMPORT" 316: onClick="finish_import()" />  317: <input type="button" name="alter" value="CANCEL" onClick="self.close()" /> 318: END 319: $r->print("<table border='0'><tr><td bgcolor='#eeeeee'>"); 320: $r->print("<table border=0><tr>\n"); 321: $r->print("<td colspan='2' bgcolor='$titleclr'><b>Change order</b></td>". 322: "\n"); 323: $r->print("<td colspan='2' bgcolor='$titleclr'><b>Title</b></td>\n"); 324: $r->print("<td bgcolor='$titleclr'><b>Path</b></td></tr>\n"); 325: foreach (sort {$shash{$a}<=>$shash{$b}} (keys %shash)) { 326: my $key=$_; 327: $ctr++; 328: my @file_ext = split(/\./,$key); 329: my $curfext = $file_ext[scalar(@file_ext)-1]; 330: $r->print("<tr><td bgcolor='$fileclr'>"); 331: $r->print(&movers($clen,$ctr)); 332: $r->print(&hidden($ctr-1,$thash{$key},$key)); 333: $r->print("</td><td bgcolor='$fileclr'>"); 334: $r->print(&select_box($clen,$ctr)); 335: $r->print("</td><td bgcolor='$fileclr'>"); 336: $r->print("<img src='$iconpath$curfext.gif'>"); 337: $r->print("</td><td bgcolor='$fileclr'>"); 338: $r->print("$thash{$key}</td><td bgcolor='$fileclr'>\n"); 339: $r->print("$key</td></tr>\n"); 340: } 341: $r->print("</table></td></tr></table></form>"); 342: $r->print(<<END); 343: </body> 344: </html> 345: END 346: return OK; 347: } 348: 349: # --------------------------------------- Hidden values (returns scalar string) 350: sub hidden { 351: my ($sel,$title,$filelink) = @_; 352: my $string = '<input type="hidden" name="title'.$sel.'" value="'.$title. 353: '" />'; 354: $string .= '<input type="hidden" name="filelink'.$sel.'" value="'. 355: $filelink.'" />'; 356: return $string; 357: } 358: 359: # --------------------------------------- Moving arrows (returns scalar string) 360: sub movers { 361: my ($total,$sel) = @_; 362: my $dsel = $sel-1; 363: my $usel = $sel+1; 364: $usel = 1 if $usel > $total; 365: $dsel = $total if $dsel < 1; 366: my $string; 367: $string = (<<END); 368: <table border='0' cellspacing='0' cellpadding='0'> 369: <tr><td><a href='javascript:move($sel,$dsel)'> 370: <img src="${iconpath}move_up.gif" alt='UP' border='0' /></a></td></tr> 371: <tr><td><a href='javascript:move($sel,$usel)'> 372: <img src="${iconpath}move_down.gif" alt='DOWN' border='0' /></a></td></tr> 373: </table> 374: END 375: return $string; 376: } 377: 378: # ------------------------------------------ Select box (returns scalar string) 379: sub select_box { 380: my ($total,$sel) = @_; 381: my $string; 382: $string = '<select name="alt'.$sel.'"'; 383: $string .= " onChange='selectchange($sel)'>"; 384: $string .= "<option name='o0' value='0'>remove</option>"; 385: for my $cur (1..$total) { 386: $string .= "<option name='o$cur' value='$cur'"; 387: if ($cur == $sel) { 388: $string .= "selected"; 389: } 390: $string .= ">$cur</option>"; 391: } 392: $string .= "</select>\n"; 393: return $string; 394: } 395: 396: 1; 397: 398: __END__