| public hasModules ( Webmozart\Expression\Expression $expr = null ) : boolean | ||
| $expr | Webmozart\Expression\Expression | The search criteria. |
| Результат | boolean | Returns `true` if the manager has modules and `false` otherwise. If an expression was passed, this method only returns `true` if the manager has modules matching the expression. |
public function hasModules(Expression $expr = null);