本文实例讲述了Laravel框架执行原生SQL语句及使用paginate分页的方法。分享给大家供大家参考,具体如下:
1、运行原生sql
public function getList($data){//获取前端传过来的参数 $user = $data['userId']; $office = $data['officeId']; $key = $data['oneKeySearch'];//进行模糊搜索和联合查询 $where = 'and 1=1 '; if($key!=null) { $where.= ' and ( a.code like "%' . $key . '%"'; $where.= ' or b.name like "%' . $key . '%"'; $where.= ' or c.name like "%' . $key . '%")'; }//对前端传回的字段进行判断,如果不为空则执行条件查询 if($user!=null){ $user='and a.userId='.$user; } if($office!=null){ $office='and a.officeId='.$office; }//自定义原生sql语句,%s可以传参数到sql语句中,格式如下: $sqlTmp=sprintf('select a.id,a.code,a.attendanceRate,a.statisticTime, b.`realName` as userName,c.`name` as officeName from xxxa1 LEFT JOIN xxx2 b ON a.userId=b.id LEFT JOIN xxx3 c ON a.officeId=c.id where a.deleted_at is null and 1=1 %s %s %s ORDER BY a.code ', $where,$office,$user);//执行SQL语句 $results = DB::select($sqlTmp);//返回结果 return $results;}
2、运行查询构建器
public function getList($data){//获取前端传过来的参数 $user = $data['userId']; $office = $data['officeId']; $key = $data['oneKeySearch'];/* * 1、表格使用别名:直接是 “表名 as table1" ,(下面是xxx1 as a) * 2、左连接:DB::table('表1') * ->leftJoin('表2', '表1.id', '=', '表2.外键关联') * 3、因为使用了软删除,所以在查询的时候要加上 ->whereNull('a.deleted_at') * 4、使用 DB::raw方法创建一个原生表达式,写进要查询的字段名称 * ->select(DB::raw('a.id,a.code,b.`realName` as userName,c.`name` as officeName')) *5、使用orderBy进行排序 * */ $data=DB::table('biz_attendance_sta as a') ->leftJoin('sys_user as b', 'b.id', '=', 'a.userId') ->leftJoin('sys_office as c', 'c.id', '=', 'a.officeId') ->select(DB::raw('a.id,a.code,a.attendanceRate,a.statisticTime, b.`realName` as userName,c.`name` as officeName')) ->whereNull('a.deleted_at') ->orderBy('a.code', 'desc'); //使用 if(!empty(xxx)){},来判断前端传过来的参数是否为空,不为空则执行条件查询 if(!empty($user)){ $data = $data->where( 'a.userId',$user); } if(!empty($office)){ $data = $data->where( 'a.officeId',$office); } //使用 if(!empty(xxx)){},来判断前端传过来的参数是否为空,不为空则执行模糊搜索和联合查询 if (!empty($key)) { $data = $data->where(function ($query) use ($key) { $query->where('a.code', 'like', "%{$key}%") ->orWhere('b.name', 'like', "%{$key}%") ->orWhere('c.name', 'like', "%{$key}%"); }); }//使用->paginate(10)进行分页 $results=$data ->paginate(10); return $results;}
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