记 Laravel 模型 deleted 事件未被触发领悟

$user = User::find(1);
$user->delete();

这个是调用 \Illuminate\Database\Eloquent\Model:delete() 方法，源码里写了会在 delete 前后触发 deleting 和 deleted 事件，源码是：

public function delete()
    {
        if (is_null($this->getKeyName())) {
            throw new Exception('No primary key defined on model.');
        }

        // If the model doesn't exist, there is nothing to delete so we'll just return
        // immediately and not do anything else. Otherwise, we will continue with a
        // deletion process on the model, firing the proper events, and so forth.
        if (! $this->exists) {
            return;
        }

        if ($this->fireModelEvent('deleting') === false) {
            return false;
        }

        // Here, we'll touch the owning models, verifying these timestamps get updated
        // for the models. This will allow any caching to get broken on the parents
        // by the timestamp. Then we will go ahead and delete the model instance.
        $this->touchOwners();

        $this->performDeleteOnModel();

        // Once the model has been deleted, we will fire off the deleted event so that
        // the developers may hook into post-delete operations. We will then return
        // a boolean true as the delete is presumably successful on the database.
        $this->fireModelEvent('deleted', false);

        return true;
    }

而

User::where('id', 1)->delete();

调用的是 Illuminate\Database\Eloquent\Builder::delete()，然后调用 Illuminate\Database\Query\Builder::delete() ，源码里没有加上事件，直接删除数据了，Illuminate\Database\Query\Builder::delete() 源码是：

public function delete($id = null)
    {
        // If an ID is passed to the method, we will set the where clause to check the
        // ID to let developers to simply and quickly remove a single row from this
        // database without manually specifying the "where" clauses on the query.
        if (! is_null($id)) {
            $this->where($this->from.'.id', '=', $id);
        }

        return $this->connection->delete(
            $this->grammar->compileDelete($this), $this->cleanBindings(
                $this->grammar->prepareBindingsForDelete($this->bindings)
            )
        );
    }

文档仅是源码的介绍，还得看源码怎么写的。。

@lx1036 感觉现在看源码还有点吃力,把使用搞流畅了,下一步就是源码了

@free-andy 是，这些还是靠多找文章看多实践，都是这么过来的。

如果需要通过非主键检索并删除数据，怎么样才能触发删除事件呢？

@messikiller 这种批量删除,可以考虑建立数据表外键

碰到一个类似的情景，正好解惑了，感谢分享~~

= = 也遇到这个问题了，感谢分享。

我也遇到这个问题了 还是文档看的少啊 感谢分享

感谢受用