belongsTo('app\model\User','uid','id')->bind(['nickname','avatar','id_number'])->field(['id','nickname','avatar','id_number']); } public function pidUserinfo(){ return $this->belongsTo('app\model\User','pid','id')->bind(['nickname','avatar','id_number'])->field(['id','nickname','avatar','id_number']); } //新增属性的方法 public function getCreateTimeIntAttr($value, $data) { return isset($data['create_time']) ? strtotime($data['create_time']) : 0; } }