| public via ( string $relationName, callable $callable = null ) | ||
| $relationName | string | the relation name. This refers to a relation declared in the [[ActiveRelationTrait::primaryModel|primaryModel]] of the relation. |
| $callable | callable | a PHP callback for customizing the relation associated with the junction table. Its signature should be `function($query)`, where `$query` is the query to be customized. |
public function via($relationName, callable $callable = null);