Prado\Data\ActiveRecord\Relations\TActiveRecordRelationContext::getRelationHandler PHP 메소드

    public function getRelationHandler($criteria = null)
    {
        if (!$this->hasRecordRelation()) {
            throw new TActiveRecordException('ar_undefined_relation_prop', $this->_property, get_class($this->_record), 'RELATIONS');
        }
        if ($criteria === null) {
            $criteria = new TActiveRecordCriteria($this->getCondition(), $this->getParameters());
        }
        switch ($this->getRelationType()) {
            case TActiveRecord::HAS_MANY:
                return new TActiveRecordHasMany($this, $criteria);
            case TActiveRecord::MANY_TO_MANY:
                return new TActiveRecordHasManyAssociation($this, $criteria);
            case TActiveRecord::HAS_ONE:
                return new TActiveRecordHasOne($this, $criteria);
            case TActiveRecord::BELONGS_TO:
                return new TActiveRecordBelongsTo($this, $criteria);
            default:
                throw new TActiveRecordException('ar_invalid_relationship');
        }
    }

 /**
  * @return TActiveRecordRelationCommand
  */
 public function updateAssociatedRecords($updateBelongsTo = false)
 {
     $success = true;
     foreach ($this->_record->getRecordRelations() as $data) {
         list($property, $relation) = $data;
         $belongsTo = $relation[0] == TActiveRecord::BELONGS_TO;
         if ($updateBelongsTo && $belongsTo || !$updateBelongsTo && !$belongsTo) {
             $obj = $this->getSourceRecord();
             if (!$this->isEmptyFkObject($obj->getColumnValue($property))) {
                 $context = new TActiveRecordRelationContext($this->getSourceRecord(), $property, $relation);
                 $success = $context->getRelationHandler()->updateAssociatedRecords() && $success;
             }
         }
     }
     return $success;
 }