实例讲述了Laravel框架实现model层的增删改查(CURD)操作。分享给大家供大家参考,具体如下: 

protected $table = ‘user_city’;

public $timestamps = false;

//添加 返回id

public function cityadd($data)

{

    return $this->insertGetId($data);

}

//单条查找

public function getfind($id)

{

    if($this->where(‘id’,$id)->first()){

      return $this->where(‘id’,$id)->first()->toArray();

    }else{

      return [];

    }

}

//查询用户有几个uid,返回数量

public function countCity($uid){

    if($this->where(‘uid’,$uid)->first()){

      return $this->where(‘uid’,$uid)->count();

    }else{

      return [];

    }

}

//查询全部数据

public function getAll()

{

    return $this->get()->toArray();

}

/**

* 修改管理员信息

* @param $id

* @param $data

* @return bool

*/

public function upAdmin($id,$data)

{

    if($this->find($id)){

      return $this->where(‘id’,$id)->update($data);

    }else{

      return false;

    }

}

//加条件,时间

//查询用户的认购的城数

public function buy_num($uid){

    $startDate = date(‘Y-m-01’, strtotime(date(“Y-m-d”)));

    $endDate = date(‘Y-m-d’, strtotime(“$startDate +1 month -1 day”));

    // 将日期转换为Unix时间戳

    $endDate=$endDate.” 22:59:59″;

    $startDateStr = strtotime($startDate);

    $endtDateStr = strtotime($endDate);

    return $this->where(‘uid’,$uid)->where(‘buy_type’,1)->whereBetween(‘create_time’, array($startDateStr,$endtDateStr))->sum(‘buy_num’);

}

/**

* 根据id查找城池信息 只返回某个字段的值

* @param $id

* @return array

*/

public function getCityName($id)

{

    if($this->where(‘city_id’,$id)->first()){

      return $this->where(‘city_id’,$id)->lists(‘city_name’)[0];

    }else{

      return [];

    }

}