<?php

namespace app\common\library;


use app\common\model\BaseModel;
use app\common\model\school\classes\ClassesLib;

/**
 *  夜校大数据类
 */
class NightSchoolBigData extends BaseModel
{


    public static function getAreaBaseData($province,$city,$district){
       $where = function ($query)use($province,$city,$district){
          if( $province)$query = $query->where('province',$province);
          if( $city)$query = $query->where('city',$city);
          if( $district)$query = $query->where('district',$district);
       };
       //统计当前课程总数
        $count = ClassesLib::where($where)->sum("");


    }


}