Using group_concat in cakephp

gistfile1.txt

var_dump($this->Resolucion->find('all',
  array('joins' => array(
      array(
 
          'table' => 'resoluciones_palabras_clave',
 
          'type' => 'LEFT',
 
          'conditions' => array('Resolucion.id = resoluciones_palabras_clave.resolucion_id')
 
      ),
  ),
  'limit' => 5,
  'group' => 'Resolucion.id',
  'fields' => 'Resolucion.id, group_concat(resoluciones_palabras_clave.palabra) as palabra',)));