/**
* Given active record class name returns new model instance.
*
* @param string $className active record class name.
* @return MongoRecord active record model instance.
*
* @since 1.1.14
*/
protected function getModel($className)
{
return MongoRecord::model($className);
}
/**
* Связи по ObjectId соединяются только через строки!
*
* @param string $name
* @return MongoRecord|MongoRecord[]|bool
* @throws \CDbException
*/
public function getRelated($name)
{
$params = null;
foreach ($this->relations() as $relationName => $relation) {
if ($name === $relationName) {
$params = $relation;
break;
}
}
if ($params === null) {
return null;
}
list($relationType, $relationCollection, $foreignKey) = $params;
$criteria = new MongoDbCriteria();
$modelObject = MongoRecord::model($relationCollection);
$result = null;
switch ($relationType) {
case self::BELONGS_TO:
if (!isset($this->{$foreignKey})) {
throw new CDbException("Неправильно задана связь {$name} c ключем: {$foreignKey}=>_id");
}
$criteria->addCondition('_id', '=', (string) $this->{$foreignKey});
$criteria->setLimit(1);
$result = $modelObject->find($criteria, false);
break;
case self::HAS_ONE:
if (!property_exists($modelObject, $foreignKey)) {
throw new CDbException("Неправильно задана связь {$name} c ключем: _id=>{$foreignKey}");
}
$criteria->addCondition($foreignKey, '=', (string) $this->id);
$criteria->setLimit(1);
$result = $modelObject->find($criteria, false);
break;
case self::HAS_MANY:
if (!property_exists($modelObject, $foreignKey)) {
throw new CDbException("Неправильно задана связь {$name} c ключем: _id=>{$foreignKey}");
}
$criteria->addCondition($foreignKey, '=', $this->id);
$result = $modelObject->findAll($criteria);
break;
case self::HAS_RELATION_WITH:
$cursor = $modelObject->getCollection()->find([$foreignKey => (string) $this->id], [$foreignKey]);
$cursor->limit(1);
$result = $cursor->count() === 1;
break;
default:
throw new CDbException("Wrong relation type for relation: {$name}");
}
$this->relations[$name] = $result;
return $result;
}