loncom/interface/groupsort.pm - view

File: [LON-CAPA] / loncom / interface / groupsort.pm
Revision 1.9: download - view: text, annotated - select for diffs
Thu May 9 23:07:36 2002 UTC (22 years ago) by www
Branches: MAIN
CVS tags: HEAD

Also import GET-provided mode and use new routine for that

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 1.9 2002/05/09 23:07:36 www 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: 53: # color scheme 54: my $fileclr = '#ffffe6'; 55: my $titleclr = '#ddffff'; 56: 57: $r->content_type('text/html'); 58: $r->send_http_header; 59: return OK if $r->header_only; 60: 61: # finish_import looks different for graphical or "simple" RAT 62: my $finishimport=''; 63: if ($ENV{'form.mode'} eq 'simple') { 64: $finishimport=(<<ENDSMP); 65: function finish_import() { 66: alert("Finishing a simple import"); 67: } 68: ENDSMP 69: } else { 70: $finishimport=(<<ENDADV); 71: function finish_import() { 72: var linkflag=false; 73: for (var num=0; num<document.forms.groupsort.fnum.value; num++) { 74: insertRowInLastRow(); 75: placeResourceInLastRow( 76: eval("document.forms.groupsort.title"+num+".value"), 77: eval("document.forms.groupsort.filelink"+num+".value"), 78: linkflag 79: ); 80: linkflag=true; 81: } 82: opener.editmode=0; 83: opener.notclear=0; 84: opener.linkmode=0; 85: opener.draw(); 86: self.close(); 87: } 88: ENDADV 89: } 90: 91: # output start of web page 92: 93: $r->print(<<END); 94: <html> 95: <head> 96: <title>The LearningOnline Network With CAPA Group Sorter</title> 97: <script language='javascript'> 98: function insertRowInLastRow() { 99: opener.insertrow(opener.maxrow); 100: opener.addobj(opener.maxrow,'e&2'); 101: } 102: function placeResourceInLastRow (title,url,linkflag) { 103: opener.newresource(opener.maxrow,2,opener.escape(title), 104: opener.escape(url),'false','normal'); 105: opener.save(); 106: opener.mostrecent=opener.obj.length-1; 107: if (linkflag) { 108: opener.joinres(opener.linkmode,opener.mostrecent,0); 109: } 110: opener.linkmode=opener.mostrecent; 111: } 112: $finishimport 113: function selectchange(val) { 114: var newval=0+eval("document.forms.groupsort.alt"+val+".selectedIndex"); 115: orderchange(val,newval); 116: } 117: function move(val,newval) { 118: orderchange(val,newval); 119: } 120: function orderchange(val,newval) { 121: document.forms.groupsort.oldval.value=val; 122: document.forms.groupsort.newval.value=newval; 123: document.forms.groupsort.submit(); 124: } 125: </script> 126: </head> 127: <body bgcolor="#FFFFFF"> 128: END 129: 130: # read pertinent machine configuration 131: my $domain = $r->dir_config('lonDefDomain'); 132: $iconpath = $r->dir_config('lonIconsURL') . "/"; 133: 134: my %shash; # sort order (key is resource location, value is sort order) 135: my %thash; # title (key is resource location, value is title) 136: 137: my $diropendb; 138: if ($ENV{'form.catalogmode'} eq 'groupsearch') { 139: $diropendb = 140: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_searchcat.db"; 141: } 142: elsif ($ENV{'form.catalogmode'} eq 'groupimport') { 143: $diropendb = 144: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db"; 145: } 146: else { # choose last accessed 147: my $dsearch; my $dindex; 148: my $dsearcht; my $dindext; 149: $dsearch = 150: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_searchcat.db"; 151: if (-e $dsearch) { 152: $dsearcht=(stat($dsearch))[9]; 153: } 154: $dindex = 155: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db"; 156: if (-e $dindex) { 157: $dindext=(stat($dindex))[9]; 158: } 159: if (!$dsearcht and !$dindext) { 160: $diropendb=''; 161: } 162: elsif ($dsearcht>$dindext) { 163: $diropendb=$dsearch; 164: } 165: else { 166: $diropendb=$dindex; 167: } 168: } 169: if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT,0640)) { 170: my $acts = $ENV{'form.acts'}; 171: my @Acts = split(/b/,$acts); 172: my %ahash; 173: my %achash; 174: my $ac = 0; 175: foreach (@Acts) { 176: my ($state,$ref) = split(/a/); 177: $ahash{$ref} = $state; 178: $achash{$ref} = $ac; 179: $ac++; 180: } 181: foreach (sort {$achash{$a} <=> $achash{$b}} (keys %ahash)) { 182: my $key = $_; 183: if ($ahash{$key} eq '1') { 184: # my $keyz=join("<br />",keys %hash); 185: # print "<br />$key<br />$keyz".$hash{'pre_'.$key.'_link'}."<br />\n"; 186: $hash{'store_'.$hash{'pre_'.$key.'_link'}} = 187: $hash{'pre_'.$key.'_title'}; 188: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}} = 189: $hash{'storectr'}+0; 190: $hash{'storectr'}++; 191: } 192: if ($ahash{$key} eq '0') { 193: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) { 194: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}}; 195: } 196: } 197: } 198: foreach (keys %hash) { 199: if ($_ =~ /^store_/) { 200: my $key = $_; 201: $key =~ s/^store_//; 202: $shash{$key} = $hash{'storectr_'.$key}; 203: $thash{$key} = $hash{'store_'.$key}; 204: } 205: } 206: if ($ENV{'form.oldval'}) { 207: my $newctr = 0; 208: my %chash; 209: foreach (sort {$shash{$a} <=> $shash{$b}} (keys %shash)) { 210: my $key = $_; 211: $newctr++; 212: $shash{$key} = $newctr; 213: $hash{'storectr_'.$key} = $newctr; 214: $chash{$newctr} = $key; 215: } 216: my $oldval = $ENV{'form.oldval'}; 217: my $newval = $ENV{'form.newval'}; 218: if ($oldval != $newval) { 219: # when newval==0, then push down and delete 220: if ($newval!=0) { 221: $shash{$chash{$oldval}} = $newval; 222: $hash{'storectr_'.$chash{$oldval}} = $newval; 223: } 224: else { 225: $shash{$chash{$oldval}} = $newctr; 226: $hash{'storectr_'.$chash{$oldval}} = $newctr; 227: } 228: if ($newval==0) { # push down 229: my $newval2=$newctr; 230: for my $idx ($oldval..($newval2-1)) { 231: $shash{$chash{$idx+1}} = $idx; 232: $hash{'storectr_'.$chash{$idx+1}} = $idx; 233: } 234: delete $shash{$chash{$oldval}}; 235: delete $hash{'storectr_'.$chash{$oldval}}; 236: delete $hash{'store_'.$chash{$oldval}}; 237: } 238: elsif ($oldval < $newval) { # push down 239: for my $idx ($oldval..($newval-1)) { 240: $shash{$chash{$idx+1}} = $idx; 241: $hash{'storectr_'.$chash{$idx+1}} = $idx; 242: } 243: } 244: elsif ($oldval > $newval) { # push up 245: for my $idx (reverse($newval..($oldval-1))) { 246: $shash{$chash{$idx}} = $idx+1; 247: $hash{'storectr_'.$chash{$idx}} = $idx+1; 248: } 249: } 250: } 251: } 252: } else { 253: $r->print('Unable to tie hash to db file</body></html>'); 254: return OK; 255: } 256: untie %hash; 257: my $ctr = 0; 258: my $clen = scalar(keys %shash); 259: $r->print('<h2><font color="#888888">The LearningOnline With CAPA '. 260: 'Group Sorter</font></h2>'."\n"); 261: $r->print('<b><font color="#888888">Finalize order of resources</font>'. 262: '</b>'."\n"); 263: $r->print("<form method='post' action='/adm/groupsort' name='groupsort' ". 264: "enctype='application/x-www-form-urlencoded'>"); 265: $r->print(<<END); 266: <input type="hidden" name="fnum" value="$clen" /> 267: <input type="hidden" name="oldval" value="" /> 268: <input type="hidden" name="newval" value="" /> 269: END 270: if ($ENV{'form.catalogmode'} eq 'groupimport') { 271: $r->print(<<END); 272: <input type="button" name="alter" value="GO BACK" 273: onClick="window.location='/res/?catalogmode=groupimport'" />  274: END 275: } 276: if ($ENV{'form.catalogmode'} eq 'groupsearch') { 277: $r->print(<<END); 278: <input type="button" name="alter" value="GO BACK" 279: onClick="window.location='/adm/searchcat?catalogmode=groupsearch'" />  280: END 281: } 282: $r->print(<<END); 283: <input type="button" name="alter" value="FINISH IMPORT" 284: onClick="finish_import()" />  285: <input type="button" name="alter" value="CANCEL" onClick="self.close()" /> 286: END 287: $r->print("<table border='0'><tr><td bgcolor='#eeeeee'>"); 288: $r->print("<table border=0><tr>\n"); 289: $r->print("<td colspan='2' bgcolor='$titleclr'><b>Change order</b></td>". 290: "\n"); 291: $r->print("<td colspan='2' bgcolor='$titleclr'><b>Title</b></td>\n"); 292: $r->print("<td bgcolor='$titleclr'><b>Path</b></td></tr>\n"); 293: foreach (sort {$shash{$a}<=>$shash{$b}} (keys %shash)) { 294: my $key=$_; 295: $ctr++; 296: my @file_ext = split(/\./,$key); 297: my $curfext = $file_ext[scalar(@file_ext)-1]; 298: $r->print("<tr><td bgcolor='$fileclr'>"); 299: $r->print(&movers($clen,$ctr)); 300: $r->print(&hidden($ctr-1,$thash{$key},$key)); 301: $r->print("</td><td bgcolor='$fileclr'>"); 302: $r->print(&select_box($clen,$ctr)); 303: $r->print("</td><td bgcolor='$fileclr'>"); 304: $r->print("<img src='$iconpath$curfext.gif'>"); 305: $r->print("</td><td bgcolor='$fileclr'>"); 306: $r->print("$thash{$key}</td><td bgcolor='$fileclr'>\n"); 307: $r->print("$key</td></tr>\n"); 308: } 309: $r->print("</table></td></tr></table></form>"); 310: $r->print(<<END); 311: </body> 312: </html> 313: END 314: return OK; 315: } 316: 317: # --------------------------------------- Hidden values (returns scalar string) 318: sub hidden { 319: my ($sel,$title,$filelink) = @_; 320: my $string = '<input type="hidden" name="title'.$sel.'" value="'.$title. 321: '" />'; 322: $string .= '<input type="hidden" name="filelink'.$sel.'" value="'. 323: $filelink.'" />'; 324: return $string; 325: } 326: 327: # --------------------------------------- Moving arrows (returns scalar string) 328: sub movers { 329: my ($total,$sel) = @_; 330: my $dsel = $sel-1; 331: my $usel = $sel+1; 332: $usel = 1 if $usel > $total; 333: $dsel = $total if $dsel < 1; 334: my $string; 335: $string = (<<END); 336: <table border='0' cellspacing='0' cellpadding='0'> 337: <tr><td><a href='javascript:move($sel,$dsel)'> 338: <img src="${iconpath}move_up.gif" alt='UP' border='0' /></a></td></tr> 339: <tr><td><a href='javascript:move($sel,$usel)'> 340: <img src="${iconpath}move_down.gif" alt='DOWN' border='0' /></a></td></tr> 341: </table> 342: END 343: return $string; 344: } 345: 346: # ------------------------------------------ Select box (returns scalar string) 347: sub select_box { 348: my ($total,$sel) = @_; 349: my $string; 350: $string = '<select name="alt'.$sel.'"'; 351: $string .= " onChange='selectchange($sel)'>"; 352: $string .= "<option name='o0' value='0'>remove</option>"; 353: for my $cur (1..$total) { 354: $string .= "<option name='o$cur' value='$cur'"; 355: if ($cur == $sel) { 356: $string .= "selected"; 357: } 358: $string .= ">$cur</option>"; 359: } 360: $string .= "</select>\n"; 361: return $string; 362: } 363: 364: 1; 365: 366: __END__