original_string: public static function get_collections($onlysearchable = false) {
          global $DB;
          $cache = cache::make('core', 'tags');
          if (($tagcolls = $cache->get('tag_coll')) === false) {
              // Retrieve records from DB and create a default one if it is not present.
              $tagcolls = $DB->get_records('tag_coll', null, 'isdefault DESC, sortorder, id');
              if (empty($tagcolls)) {
                  // When this method is called for the first time it automatically creates the default tag collection.
                  $DB->insert_record('tag_coll', array('isdefault' => 1, 'sortorder' => 0));
                  $tagcolls = $DB->get_records('tag_coll');
              } else {
                  // Make sure sortorder is correct.
                  $idx = 0;
                  foreach ($tagcolls as $id => $tagcoll) {
                      if ($tagcoll->sortorder != $idx) {
                          $DB->update_record('tag_coll', array('sortorder' => $idx, 'id' => $id));
                          $tagcolls[$id]->sortorder = $idx;
                      }
                      $idx++;
                  }
              }
              $cache->set('tag_coll', $tagcolls);
          }
          if ($onlysearchable) {
              $rv = array();
              foreach ($tagcolls as $id => $tagcoll) {
                  if ($tagcoll->searchable) {
                      $rv[$id] = $tagcoll;
                  }
              }
              return $rv;
          }
          return $tagcolls;
      }
code: public static function get_collections($onlysearchable = false) {
          global $DB;
          $cache = cache::make('core', 'tags');
          if (($tagcolls = $cache->get('tag_coll')) === false) {
              // Retrieve records from DB and create a default one if it is not present.
              $tagcolls = $DB->get_records('tag_coll', null, 'isdefault DESC, sortorder, id');
              if (empty($tagcolls)) {
                  // When this method is called for the first time it automatically creates the default tag collection.
                  $DB->insert_record('tag_coll', array('isdefault' => 1, 'sortorder' => 0));
                  $tagcolls = $DB->get_records('tag_coll');
              } else {
                  // Make sure sortorder is correct.
                  $idx = 0;
                  foreach ($tagcolls as $id => $tagcoll) {
                      if ($tagcoll->sortorder != $idx) {
                          $DB->update_record('tag_coll', array('sortorder' => $idx, 'id' => $id));
                          $tagcolls[$id]->sortorder = $idx;
                      }
                      $idx++;
                  }
              }
              $cache->set('tag_coll', $tagcolls);
          }
          if ($onlysearchable) {
              $rv = array();
              foreach ($tagcolls as $id => $tagcoll) {
                  if ($tagcoll->searchable) {
                      $rv[$id] = $tagcoll;
                  }
              }
              return $rv;
          }
          return $tagcolls;
      }
code_tokens: public static function get_collections ( $ onlysearchable = false ) { global $ DB ; $ cache = cache :: make ( 'core' , 'tags' ) ; if ( ( $ tagcolls = $ cache -> get ( 'tag_coll' ) ) === false ) { // Retrieve records from DB and create a default one if it is not present. $ tagcolls = $ DB -> get_records ( 'tag_coll' , null , 'isdefault DESC, sortorder, id' ) ; if ( empty ( $ tagcolls ) ) { // When this method is called for the first time it automatically creates the default tag collection. $ DB -> insert_record ( 'tag_coll' , array ( 'isdefault' => 1 , 'sortorder' => 0 ) ) ; $ tagcolls = $ DB -> get_records ( 'tag_coll' ) ; } else { // Make sure sortorder is correct. $ idx = 0 ; foreach ( $ tagcolls as $ id => $ tagcoll ) { if ( $ tagcoll -> sortorder != $ idx ) { $ DB -> update_record ( 'tag_coll' , array ( 'sortorder' => $ idx , 'id' => $ id ) ) ; $ tagcolls [ $ id ] -> sortorder = $ idx ; } $ idx ++ ; } } $ cache -> set ( 'tag_coll' , $ tagcolls ) ; } if ( $ onlysearchable ) { $ rv = array ( ) ; foreach ( $ tagcolls as $ id => $ tagcoll ) { if ( $ tagcoll -> searchable ) { $ rv [ $ id ] = $ tagcoll ; } } return $ rv ; } return $ tagcolls ; }
docstring: Returns the list of tag collections defined in the system.
  
  @param bool $onlysearchable only return collections that can be searched.
  @return array array of objects where each object has properties: id, name, isdefault, itemtypes, sortorder
docstring_tokens: Returns the list of tag collections defined in the system .