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webman event

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1.0.0

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webman event plugin

The advantage of events compared to middleware is that events are more accurately positioned (or more granular) than middleware, and are more suitable for the expansion of some business scenarios. For example, we usually encounter users who need to perform a series of operations after registering or logging in. Through the event system, we can complete the login operation expansion without invading the original code, which not only reduces the coupling of the system, but also reduces the possibility of BUG. .

Install

composer require tinywan/event

quick start

Listen for events

Event LogErrorWriteEvent.php

 namespace extend ;

use Symfony  Contracts  EventDispatcher  Event ;

class LogErrorWriteEvent extends Event
{
    const NAME = ' log.error.write ' ;  // 事件名，事件的唯一标识

    public $ log ;

    public function __construct ( array $ log )
    {
        $ this -> log = $ log ;
    }

    public function handle ()
    {
        return $ this -> log ;
    }
}

event listening

 return [
    // 事件监听
    ' listener '    => [
         extend LogErrorWriteEvent:: NAME =>  extend LogErrorWriteEvent::class,
         extend DingTalkEvent:: NAME =>  extend DingTalkEvent::class,
    ],
];

event subscription

Subscription LoggerSubscriber.php

 namespace extend ;


use Symfony  Component  EventDispatcher  EventSubscriberInterface ;
use Symfony  Contracts  EventDispatcher  Event ;

class LoggerSubscriber implements EventSubscriberInterface
{
    public static function getSubscribedEvents (): array
    {
        // 监听的不同事件，当事件触发时，会调用 onResponse 方法
        return [
             extend LogErrorWriteEvent:: NAME => ' onResponse ' ,
             extend DingTalkEvent:: NAME => ' onResponse ' ,
        ];
    }

    /**
     * @desc: 触发事件
     * @param Event $event
     */
    public function onResponse ( Event $ event )
    {
        // 一些具体的业务逻辑
        var_dump ( $ event -> handle ());
    }
}

event subscription

 return [
    // 事件订阅
    ' subscriber ' => [
          extend LoggerSubscriber::class
    ],
];

event trigger

Trigger the LogErrorWriteEvent event.

 $ error = [
    ' errorMessage ' => '错误消息' ,
    ' errorCode ' => 500
];
Tinywan Event:: trigger ( new  extend  LogErrorWriteEvent ( $ error ),  extend LogErrorWriteEvent:: NAME );

Helper function (recommended)

 $ error = [
    ' errorMessage ' => '错误消息' ,
    ' errorCode ' => 500
];
event ( new  extend  LogErrorWriteEvent ( $ error ),  extend LogErrorWriteEvent:: NAME );