protected function _loadSets()
 {
     $this->sets = $this->set->listSets($this->_prepareLoadSetsOptions());
     $this->countPages = $this->entitiesPerPage ? ceil($this->sets->countAll / $this->entitiesPerPage) : 1;
 }
 protected function _loadSets()
 {
     $this->sets = $this->set->listSets($this->_prepareLoadSetsOptions());
 }