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<?php |
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// +---------------------------------------------------------------------- |
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// | ThinkPHP [ WE CAN DO IT JUST THINK ] |
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// +---------------------------------------------------------------------- |
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// | Copyright (c) 2006~2019 http://thinkphp.cn All rights reserved. |
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// +---------------------------------------------------------------------- |
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 ) |
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// +---------------------------------------------------------------------- |
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// | Author: liu21st <[email protected]> |
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// +---------------------------------------------------------------------- |
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declare (strict_types = 1); |
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namespace think\model\concern; |
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use think\App; |
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use think\Container; |
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use think\exception\ModelEventException; |
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/** |
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* 模型事件处理 |
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*/ |
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trait ModelEvent |
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{ |
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/** |
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* 模型事件观察 |
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* @var array |
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*/ |
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protected static $observe = ['after_read', 'before_write', 'after_write', 'before_insert', 'after_insert', 'before_update', 'after_update', 'before_delete', 'after_delete', 'before_restore', 'after_restore']; |
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/** |
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* 是否需要事件响应 |
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* @var bool |
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*/ |
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protected $withEvent = true; |
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/** |
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* 注册一个模型观察者 |
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* |
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* @param string $class |
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* @return void |
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*/ |
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protected static function observe(string $class): void |
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{ |
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foreach (static::$observe as $event) { |
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$call = 'on' . App::parseName($event, 1, false); |
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if (method_exists($class, $call)) { |
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$instance = Container::getInstance()->invokeClass($class); |
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Container::pull('event')->listen(static::class . '.' . $event, [$instance, $call]); |
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} |
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} |
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} |
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/** |
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* 当前操作的事件响应 |
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* @access protected |
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* @param bool $event 是否需要事件响应 |
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* @return $this |
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*/ |
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public function withEvent(bool $event) |
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{ |
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$this->withEvent = $event; |
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return $this; |
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} |
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/** |
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* 触发事件 |
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* @access protected |
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* @param string $event 事件名 |
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* @return bool |
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*/ |
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protected function trigger(string $event): bool |
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{ |
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if (!$this->withEvent) { |
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return true; |
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} |
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$call = 'on' . App::parseName($event, 1, false); |
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if (method_exists($this, $call)) { |
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$result = Container::getInstance()->invoke($call, [$this]); |
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if (false === $result) { |
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return false; |
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} else { |
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return true; |
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} |
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} |
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try { |
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Container::pull('event')->trigger(static::class . '.' . $event, $this); |
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return true; |
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} catch (ModelEventException $e) { |
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return false; |
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} |
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} |
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} |
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top-think /
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