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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\Notifications\Mapper; |
| 4 | |
| 5 | use InvalidArgumentException; |
| 6 | use MediaWiki\Extension\Notifications\DbFactory; |
| 7 | |
| 8 | /** |
| 9 | * Abstract mapper for model |
| 10 | */ |
| 11 | abstract class AbstractMapper { |
| 12 | |
| 13 | /** |
| 14 | * Echo database factory |
| 15 | * @var DbFactory |
| 16 | */ |
| 17 | protected $dbFactory; |
| 18 | |
| 19 | /** |
| 20 | * Event listeners for method like insert/delete |
| 21 | * @var array[] |
| 22 | */ |
| 23 | protected $listeners; |
| 24 | |
| 25 | /** |
| 26 | * @param DbFactory|null $dbFactory |
| 27 | */ |
| 28 | public function __construct( DbFactory $dbFactory = null ) { |
| 29 | $this->dbFactory = $dbFactory ?? DbFactory::newFromDefault(); |
| 30 | } |
| 31 | |
| 32 | /** |
| 33 | * Attach a listener |
| 34 | * |
| 35 | * @param string $method Method name |
| 36 | * @param string $key Identification of the callable |
| 37 | * @param callable $callable |
| 38 | */ |
| 39 | public function attachListener( $method, $key, $callable ) { |
| 40 | if ( !method_exists( $this, $method ) ) { |
| 41 | throw new InvalidArgumentException( $method . ' does not exist in ' . get_class( $this ) ); |
| 42 | } |
| 43 | if ( !isset( $this->listeners[$method] ) ) { |
| 44 | $this->listeners[$method] = []; |
| 45 | } |
| 46 | |
| 47 | $this->listeners[$method][$key] = $callable; |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * Detach a listener |
| 52 | * |
| 53 | * @param string $method Method name |
| 54 | * @param string $key identification of the callable |
| 55 | */ |
| 56 | public function detachListener( $method, $key ) { |
| 57 | if ( isset( $this->listeners[$method] ) ) { |
| 58 | unset( $this->listeners[$method][$key] ); |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * Get the listener for a method |
| 64 | * |
| 65 | * @param string $method |
| 66 | * @return callable[] |
| 67 | */ |
| 68 | public function getMethodListeners( $method ) { |
| 69 | if ( !method_exists( $this, $method ) ) { |
| 70 | throw new InvalidArgumentException( $method . ' does not exist in ' . get_class( $this ) ); |
| 71 | } |
| 72 | |
| 73 | return $this->listeners[$method] ?? []; |
| 74 | } |
| 75 | |
| 76 | } |