Granada\ORM::_add_condition PHP Method

    protected function _add_condition($type, $fragment, $values = array())
    {
        $conditions_class_property_name = "_{$type}_conditions";
        if (!is_array($values)) {
            $values = array($values);
        }
        array_push($this->{$conditions_class_property_name}, array(self::CONDITION_FRAGMENT => $fragment, self::CONDITION_VALUES => $values));
        return $this;
    }