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vendor/topthink/think-orm/src/model/concern/ModelEvent.php

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+<?php
+
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006~2025 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: liu21st <liu21st@gmail.com>
+// +----------------------------------------------------------------------
+declare (strict_types = 1);
+
+namespace think\model\concern;
+
+use ReflectionClass;
+use think\db\exception\ModelEventException;
+use think\helper\Str;
+
+/**
+ * 模型事件处理.
+ */
+trait ModelEvent
+{
+    /**
+     * 设置Event对象 （用于兼容）
+     *
+     * @param object $event Event对象
+     *
+     * @return void
+     */
+    public static function setEvent($event)
+    {}
+
+    /**
+     * 当前操作的事件响应.
+     *
+     * @param bool $event 是否需要事件响应
+     *
+     * @return $this
+     */
+    public function withEvent(bool $event)
+    {
+        return $this->setOption('withEvent', $event);
+    }
+
+    /**
+     * 触发事件.
+     *
+     * @param string $event 事件名
+     *
+     * @return bool
+     */
+    protected function trigger(string $event): bool
+    {
+        if (!$this->getOption('withEvent', true)) {
+            return true;
+        }
+
+        $method = 'on' . Str::studly($event);
+        $obj    = $this->getOption('event');
+        $obser  = $this->getOption('eventObserver');
+        try {
+            if ($obser) {
+                $reflect  = new ReflectionClass($obser);
+                $observer = $reflect->newinstance();
+            } else {
+                $observer = $this;
+            }
+
+            if (method_exists($observer, $method)) {
+                $result = $this->invoke([$observer, $method], [$this]);
+            } elseif (is_object($obj) && method_exists($obj, 'trigger')) {
+                $result = $obj->trigger(static::class . '.' . $event, $this);
+                $result = empty($result) ? true : end($result);
+            } else {
+                $result = true;
+            }
+
+            return false !== $result;
+        } catch (ModelEventException $e) {
+            return false;
+        }
+    }
+}