Return to lonwishlistdisplay.pm CVS log

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- Split lonwishlist into two modules, one for displaying (handler) and one utility-module, to avoid problems with Apache::constants when calling methods from lonwishlist (e.g. need to call lonwishlist-method in lonmenu and lonmenu is used in printout.pl -> outside of mod_perl).
- Moving entries in wishlist: corrected warning shown when no entry is selected
- Some  code optimizations
- Still some things do not work perfect -> in progress

    1: # The LearningOnline Network with CAPA
    2: # Routines to display the wishlist (handler)
    3: #
    4: # $Id: lonwishlistdisplay.pm,v 1.1 2011/01/27 14:38:44 wenzelju Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: 
   29: package Apache::lonwishlistdisplay;
   30: 
   31: use strict;
   32: use Apache::Constants qw(:common);
   33: use Apache::lonnet;
   34: use Apache::loncommon();
   35: use Apache::lonhtmlcommon;
   36: use Apache::lonlocal;
   37: use Apache::lonwishlist;
   38: use LONCAPA;
   39: use Tree;
   40: 
   41: 
   42: # Global variables
   43: my $root;
   44: my @childrenRt;
   45: my %TreeHash;
   46: 
   47:  
   48: # ----------------------------------------------------- Main Handler, package lonwishlistdisplay
   49: sub handler {
   50:     my ($r) = @_;
   51:     &Apache::loncommon::content_type($r,'text/html');
   52:     $r->send_http_header;
   53: 
   54:     if (&Apache::lonwishlist::getWishlist() ne 'error') {
   55:         # get wishlist entries from user-data db-file and build a tree out of these entries
   56:         %TreeHash = &Apache::lonwishlist::getWishlist();
   57: 
   58:         $root = &Apache::Tree::HashToTree(\%TreeHash);
   59:         @childrenRt = $root->children();
   60: 
   61:         # create a new entry
   62:         if ($env{'form.title'}) {
   63:            $root = &Apache::lonwishlist::newEntry($root, $env{'form.title'}, $env{'form.path'}, $env{'form.note'});
   64:         }
   65: 
   66:         # get unprocessed_cgi (i.e. marked entries, mode ...) 
   67:         &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['action','mark','markedToMove','mode','newtitle','note','rat']);
   68: 
   69:         # change the order of entries within a level, that means sorting the entries
   70:         my $changeOrder = 0;
   71:         if (defined $env{'form.sel'}) {
   72:             my @sel = &Apache::loncommon::get_env_multiple('form.sel');
   73:             my $indexNode;
   74:             my $at;
   75:             for (my $s=0; $s<($#sel+1); $s++) {
   76:                 if ($sel[$s] ne '') {
   77:                     $indexNode = $s;
   78:                     $at = $sel[$s]-1;
   79:                 }
   80:             }
   81:             if ($at ne '') {
   82:                 $changeOrder = 1;
   83:                 $root =  &Apache::lonwishlist::sortEntries($root, $indexNode,$at);
   84:             }
   85:         }
   86: 
   87:         # get all marked (checkboxes) entries
   88:         my @marked = ();
   89:         if (defined $env{'form.mark'}) {
   90:             @marked = &Apache::loncommon::get_env_multiple('form.mark');
   91:         }
   92: 
   93:         # move entries from one folder to another
   94:         if (defined $env{'form.markedToMove'}) {
   95:            my $markedToMove = $env{'form.markedToMove'};
   96:            my @ToMove = split(/\,/,$markedToMove);
   97:            my $moveTo = $env{'form.mark'};
   98:            if (defined $moveTo){ 
   99:                $root =  &Apache::lonwishlist::moveEntries($root, \@ToMove,$moveTo);
  100:            }
  101:            $changeOrder = 1;
  102:     
  103:         }
  104: 
  105:         # delete entries
  106:         if ($env{'form.action'} eq 'delete') {
  107:             $root = &Apache::lonwishlist::deleteEntries($root, \@marked);
  108:         }
  109:    
  110: 
  111:         # get all titles and notes and save them
  112:         # only save, if user wants to save changes
  113:         # do not save, when current action is 'delete' or 'sort' or 'move' 
  114:         my @newTitles = ();
  115:         my @newPaths = ();
  116:         my @newNotes = ();
  117:         if ((defined $env{'form.newtitle'} || defined $env{'form.newpath'} || defined $env{'form.newnote'})
  118:             && ($env{'form.action'} ne 'noSave') && ($env{'form.action'} ne 'delete') && !$changeOrder) {
  119:             @newTitles = &Apache::loncommon::get_env_multiple('form.newtitle');
  120:             @newPaths = &Apache::loncommon::get_env_multiple('form.newpath');
  121:             @newNotes = &Apache::loncommon::get_env_multiple('form.newnote');
  122:             my $node = 0;
  123:             foreach my $t (@newTitles) {
  124:                $root = &Apache::lonwishlist::setNewTitle($root, $node, $t);
  125:                $node++;
  126:             }
  127:             $node = 0;
  128:             my $path = 0;
  129:             for (my $i = 0; $i < ($#newTitles+1); $i++ ) {
  130:                if (&Apache::lonwishlist::setNewPath($root, $node, $newPaths[$path])) {
  131:                      $path++;
  132:                }
  133:                $node++;
  134:             }
  135:             $node = 0;
  136:             foreach my $n (@newNotes) {
  137:                $root =  &Apache::lonwishlist::setNewNote($root, $node, $n);
  138:                $node++;
  139:             }
  140:         }
  141: 
  142:         # Create HTML-markup
  143:         my $page;
  144:         if ($env{'form.mode'} eq 'edit') {
  145:             $page = &Apache::lonwishlist::makePage($root, "edit");
  146:         }
  147:         elsif ($env{'form.mode'} eq 'move') {
  148:             $page = &Apache::lonwishlist::makePage($root, "move", \@marked);
  149:         }
  150:         elsif ($env{'form.mode'} eq 'import') {
  151:             $page = &Apache::lonwishlist::makePageImport($root, $env{'form.rat'});
  152:         }
  153:         elsif ($env{'form.mode'} eq 'set') {
  154:             $page = &Apache::lonwishlist::makePageSet();
  155:         }
  156:         else {
  157:             $page = &Apache::lonwishlist::makePage($root, "view");
  158:         }
  159:         @marked = ();
  160:         $r->print($page);
  161:     }
  162:     # An error occured, print an error-page
  163:     else {
  164:         my $errorPage = &Apache::lonwishlist::makeErrorPage();
  165:         $r->print($errorPage);
  166:     }
  167:     return OK;
  168: }
  169: 
  170: 1;
  171: __END__