<?php namespace app\admin\model; use think\Model; class Classes extends Model { // 表名 protected $table = 'classes'; // 自动写入时间戳字段 protected $autoWriteTimestamp = false; // 定义时间戳字段名 protected $createTime = false; protected $updateTime = false; protected $deleteTime = false; // 追加属性 protected $append = [ ]; protected static function init() { self::afterInsert(function ($row) { $pk = $row->getPk(); $row->getQuery()->where($pk, $row[$pk])->update(['weigh' => $row[$pk]]); }); } public function school() { return $this->belongsTo('School', 'school_id', 'id', [], 'LEFT')->setEagerlyType(0); } public function grade() { return $this->belongsTo('Grade', 'grade_id', 'id', [], 'LEFT')->setEagerlyType(0); } }