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Method to unlink all relationship many to many in current model

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NmDimas
2014-05-20 21:39:16 +03:00
parent 249e27a87d
commit a047bf2cd6
1 changed files with 28 additions and 0 deletions
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28
framework/db/BaseActiveRecord.php
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@ -1283,6 +1283,34 @@ abstract class BaseActiveRecord extends Model implements ActiveRecordInterface
}
}
/**
* Destroys the relationship in current model.
*
* Note that this method for relations many to many
*
* @param string $name the case sensitive name of the relationship.
* @throws InvalidCallException if the models cannot be unlinked
*/
public function unlinkAll($name)
{
$relation = $this->getRelation($name);
if (!empty($relation->via)) {
$viaTable = $viaTable = reset($relation->via->from);
/** @var ActiveQuery $viaRelation */
$viaRelation = $relation->via;
$columns = [];
/** @var $viaClass ActiveRecordInterface */
foreach ($viaRelation->link as $a => $b) {
$columns[$a] = $this->$b;
}
/** @var Command $command */
$command = static::getDb()->createCommand();
$command->delete($viaTable, $columns)->execute();
} else {
throw new InvalidCallException('Unable to unlink relationship for the current model. This method is only for many to many relationships.');
}
}
/**
* @param array $link
* @param ActiveRecordInterface $foreignModel