Phalcon事件
事件\AbstractEventsAware
GitHub上的源码
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命名空间
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使用
Phalcon\Events\ManagerInterface
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继承
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实现
这个抽象类提供了对事件管理器的访问
属性
/**
* @var ManagerInterface|null
*/
protected $eventsManager;
方法
public function getEventsManager(): ManagerInterface | null;
public function setEventsManager( ManagerInterface $eventsManager ): void;
protected function fireManagerEvent( string $eventName, mixed $data = null, bool $cancellable = bool ): mixed | bool;
事件\Event
GitHub上的源码
此类在EventsManager中提供已触发事件的上下文信息
Phalcon\Events\Event;
$event = new Event("db:afterQuery", $this, ["data" => "mydata"], true);
if ($event->isCancelable()) {
$event->stop();
}
属性
/**
* Is event cancelable?
*
* @var bool
*/
protected $cancelable;
/**
* Event data
*
* @var mixed
*/
protected $data;
/**
* Event source
*
* @var object|null
*/
protected $source;
/**
* Is event propagation stopped?
*
* @var bool
*/
protected $stopped = false;
/**
* Event type
*
* @var string
*/
protected $type;
方法
public function __construct( string $type, mixed $source = null, mixed $data = null, bool $cancelable = bool );
public function getData(): mixed;
public function getSource(): object | null;
public function getType(): string;
public function isCancelable(): bool;
if ($event->isCancelable()) {
$event->stop();
}
public function isStopped(): bool;
public function setData( mixed $data = null ): EventInterface;
public function setType( string $type ): EventInterface;
public function stop(): EventInterface;
if ($event->isCancelable()) {
$event->stop();
}
事件\EventInterface
GitHub上的源码
Phalcon\Events\Event 类的接口
方法
public function getData(): mixed;
public function getType(): mixed;
public function isCancelable(): bool;
public function isStopped(): bool;
public function setData( mixed $data = null ): EventInterface;
public function setType( string $type ): EventInterface;
public function stop(): EventInterface;
事件\EventsAwareInterface
GitHub上的源码
此接口适用于那些接受EventsManager并分发事件的类
方法
public function getEventsManager(): ManagerInterface | null;
public function setEventsManager( ManagerInterface $eventsManager ): void;
事件\Exception
GitHub上的源码
Phalcon\Events 中抛出的异常将使用此类
事件\Manager
GitHub上的源码
Phalcon Events Manager 提供了一种简单的方法来拦截和操作，如果需要的话，正常的操作流程。通过 EventsManager，开发人员可以创建钩子或插件，这些钩子或插件将提供数据监控、操作、条件执行等更多功能。
常量
const DEFAULT_PRIORITY = 100;
属性
/**
* @var bool
*/
protected $collect = false;
/**
* @var bool
*/
protected $enablePriorities = false;
/**
* @var array
*/
protected $events;
/**
* @var array
*/
protected $responses;
方法
public function arePrioritiesEnabled(): bool;
public function attach( string $eventType, mixed $handler, int $priority = static-constant-access ): void;
public function collectResponses( bool $collect ): void;
public function detach( string $eventType, mixed $handler ): void;
public function detachAll( string $type = null ): void;
public function enablePriorities( bool $enablePriorities ): void;
事件的优先队列是一种类似于普通事件队列的数据结构：我们也可以从中放入和提取元素。区别在于优先队列中的每个元素都与一个称为优先级的值相关联。这个值用于对队列中的元素进行排序：高优先级的元素会比低优先级的元素先被检索。
public function fire( string $eventType, object $source, mixed $data = null, bool $cancelable = bool );
$eventsManager->fire("db", $connection);
final public function fireQueue( SplPriorityQueue $queue, EventInterface $event );
public function getListeners( string $type ): array;
public function getResponses(): array;
public function hasListeners( string $type ): bool;
public function isCollecting(): bool;
public function isValidHandler( mixed $handler ): bool;
事件\ManagerInterface
GitHub上的源码
Phalcon\Events 管理器的接口。
方法
public function attach( string $eventType, mixed $handler ): void;
public function detach( string $eventType, mixed $handler ): void;
public function detachAll( string $type = null ): void;
public function fire( string $eventType, object $source, mixed $data = null, bool $cancelable = bool );
public function getListeners( string $type ): array;
public function hasListeners( string $type ): bool;
