P粉752826008 2023-08-08 16:31:55 0 1 205
我有一个像这样的模型:
class Equipment extends Model { use HasFactory,softDeletes; protected $table = 'equipments'; protected $fillable = ['station_id', 'parent_id', 'code', 'name', 'description', 'creator_id','deletor_id','updator_id']; protected $softDelete = true; protected $dates = ['deleted_at']; public static function boot() { parent::boot(); //it doesn't called at all! static::updated(function (Model $model) { Log::error('calling refreshTree'); $model->refreshTree(); }); static::created(function (Model $model) { $model->refreshTree(); }); static::deleted(function (Model $model) { $model->refreshTree(); }); } public function refreshTree(){ Log::error('refreshTree'); $equipment = DB::table('equipments')->get(); $treeData = $this->generateTree($equipment); $jsonData = json_encode($treeData); Redis::set(config('redis.EquipmentTree'),$jsonData); } private function generateTree($data, $parentId = 0) { $tree = []; foreach ($data as $item) { if ($item->parent_id == $parentId) { $children = $this->generateTree($data, $item->id); $node = [ 'id' => $item->id, 'text' => $item->name, 'editURL'=>route('dashboard.basic-info.equipments.edit',['id'=>$item->id]), 'children' => $children ]; if(count($children) <= 0) unset($node['children']); array_push($tree, $node); } } return $tree; } }
当我创建模型时,创建函数被触发,但当我更新模型时,更新函数没有被触发
//Equipment::where('id',$id)->update(['parent_id'=>$recordTarget['id']]); //它没有生效 //我也尝试了这个: $equipment = Equipment::find($id); $equipment->parent_id = $recordTarget['id']; $equipment->save();
P粉165522886 已被采纳 2023-08-09 09:30:12 1楼
当使用查询构建器实例或批量更新时,即使你只针对一行进行操作,事件监听器也不会触发
要触发它,你需要使用模型实例
这也等同于
并且你可以看到,在模型上调用update()与在查询构建器上调用update()是不同的。
当你考虑到,要触发这些事件,代码需要一个模型的实例来与之一起工作,就像static::updated(function (Model $model) {那样。如果你的查询不同,例如Equipment::where('id','>',$id),为了处理所有事件,它需要查询所有受影响的行,为它们生成模型实例,然后使用这些模型调用事件。
这会降低性能
但是如果没有其他办法,你可以明确地这样做
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