Form_Field_ValueList::setValueList PHP Method

    public function setValueList($list)
    {
        $this->value_list = $list;
        return $this;
    }

 function setValueList($model_or_list, $field_definition = null)
 {
     if ($model_or_list instanceof FieldDefinition) {
         // ommit first argument
         $field_definition = $model_or_list;
         $model_or_list = $field->refModel();
     }
     if ($field_definition) {
         // find out if this field can be empty
         $this->required = $field_definition->required();
     }
     if (!is_object($model_or_list)) {
         return parent::setValueList($model_or_list);
     } else {
         // we have been passed a Model, we can do more with this
         if (!$model_or_list instanceof AbstractModel) {
             throw new BaseException('Only Model or Array can be specified to this function');
         }
         $this->dictionary = $model_or_list;
         $this->allowAdd(method_exists($this->dictionary, 'addDefaultEntity'));
     }
     return $this;
 }