tag/manage.php

   1 <?php // $Id$
   2
   3 require_once('../config.php');
   4 require_once('lib.php');
   5 require_once($CFG->dirroot.'/lib/weblib.php');
   6
   7 require_login();
   8
   9 if( empty($CFG->usetags)) {
  10     error(get_string('tagsaredisabled', 'tag'));
  11 }
  12
  13 //managing tags requires moodle/tag:manage capability
  14 $systemcontext   = get_context_instance(CONTEXT_SYSTEM);
  15 require_capability('moodle/tag:manage', $systemcontext);
  16
  17 $tagschecked    = optional_param('tagschecked', array());
  18 $newnames       = optional_param('newname', array());
  19 $tagtypes       = optional_param('tagtypes', array());
  20 $action         = optional_param('action', '', PARAM_ALPHA);
  21
  22 $navlinks = array();
  23 $navlinks[] = array('name' => get_string('tags', 'tag'), 'link' => "{$CFG->wwwroot}/tag/search.php", 'type' => '');
  24 $navlinks[] = array('name' => get_string('managetags', 'tag'), 'link' => '', 'type' => '');
  25
  26 $navigation = build_navigation($navlinks);
  27 print_header_simple(get_string('managetags', 'tag'), '', $navigation);
  28
  29 $notice = tag_name_from_string(implode($tagschecked, ', '));
  30 $notice = str_replace(',', ', ', $notice);
  31
  32 switch($action) {
  33
  34     case 'delete':
  35
  36         $notice .= ' --  ' . get_string('deleted','tag');
  37
  38         tag_delete(implode($tagschecked, ','));
  39
  40         break;
  41
  42     case 'reset':
  43
  44         $notice .= ' -- ' . get_string('reset','tag');
  45
  46         tag_flag_reset(implode($tagschecked, ','));
  47
  48         break;
  49     case 'changetype':
  50
  51         foreach ($tagschecked as $tag_id){
  52
  53             // update tag type;
  54             $tag = tag_by_id($tag_id);
  55
  56             $tag -> tagtype = $tagtypes[$tag_id];
  57             if (update_record('tag', $tag)) {
  58                 $notice .= ' --  ' . get_string('typechanged','tag');
  59             }
  60         }
  61
  62         break;
  63     case 'changename':
  64
  65         $normalized_new_names_csv = tag_normalize( str_replace(',,','',implode($newnames, ',')) );
  66
  67         //tag names entered might already exist
  68         $existing_tags = tags_id( $normalized_new_names_csv );
  69
  70         //notice to warn that names already exist
  71         $err_notice = '';
  72         foreach ($existing_tags as $name => $tag){
  73             $err_notice .= $name . ', ';
  74         }
  75         if(!empty($err_notice)){
  76             $err_notice .= '-- ' . get_string('namesalreadybeeingused','tag');
  77         }
  78
  79
  80         //update tag names with the names passed in $newnames
  81         $tags_names_changed = array();
  82         foreach ($tagschecked as $tag_id){
  83             $tags_names_changed[$tag_id] = str_replace(',','',$newnames[$tag_id]) ;
  84         }
  85
  86         $tags_names_updated = tag_update_name($tags_names_changed);
  87
  88         //notice to inform what tags had their names effectively updated
  89         $notice = implode($tags_names_updated, ', ');
  90         if(!empty($notice)){
  91             $notice .= ' -- ' . get_string('updated','tag');
  92         }
  93
  94         break;
  95 }
  96
  97 echo '<br/>';
  98
  99 notify($err_notice, 'red');
 100 notify($notice , 'green');
 101
 102 print_tag_management_list();
 103
 104
 105 echo '<br/>';
 106
 107 print_footer();
 108
 109 ?>