Doctrine_Record::coreSetRelated PHP Метод

    public function coreSetRelated($name, $value)
    {
        $rel = $this->_table->getRelation($name);
        if ($value === null) {
            $value = self::$_null;
        }
        // one-to-many or one-to-one relation
        if ($rel instanceof Doctrine_Relation_ForeignKey || $rel instanceof Doctrine_Relation_LocalKey) {
            if (!$rel->isOneToOne()) {
                // one-to-many relation found
                if (!$value instanceof Doctrine_Collection) {
                    throw new Doctrine_Record_Exception("Couldn't call Doctrine_Core::set(), second argument should be an instance of Doctrine_Collection when setting one-to-many references.");
                }
                if (isset($this->_references[$name])) {
                    $this->_references[$name]->setData($value->getData());
                    return $this;
                }
            } else {
                $localFieldName = $this->_table->getFieldName($rel->getLocal());
                if ($value !== self::$_null) {
                    $relatedTable = $rel->getTable();
                    $foreignFieldName = $relatedTable->getFieldName($rel->getForeign());
                }
                // one-to-one relation found
                if (!$value instanceof Doctrine_Record && !$value instanceof Doctrine_Null) {
                    throw new Doctrine_Record_Exception("Couldn't call Doctrine_Core::set(), second argument should be an instance of Doctrine_Record or Doctrine_Null when setting one-to-one references.");
                }
                if ($rel instanceof Doctrine_Relation_LocalKey) {
                    if ($value !== self::$_null && !empty($foreignFieldName) && $foreignFieldName != $value->getTable()->getIdentifier()) {
                        $this->set($localFieldName, $value->rawGet($foreignFieldName), false);
                    } else {
                        // FIX: Ticket #1280 fits in this situation
                        $this->set($localFieldName, $value, false);
                    }
                } elseif ($value !== self::$_null) {
                    // We should only be able to reach $foreignFieldName if we have a Doctrine_Record on hands
                    $value->set($foreignFieldName, $this, false);
                }
            }
        } else {
            if ($rel instanceof Doctrine_Relation_Association) {
                // join table relation found
                if (!$value instanceof Doctrine_Collection) {
                    throw new Doctrine_Record_Exception("Couldn't call Doctrine_Core::set(), second argument should be an instance of Doctrine_Collection when setting many-to-many references.");
                }
            }
        }
        $this->_references[$name] = $value;
    }