Question

我希望在我的控制器中实现此查询的功能

select * from table where true
if($param1 != ""){
  and table.column1 = '$param1'
}
if($param2 != ""){
  and table.column2 = '$param2'
}

到目前为止，我所尝试的是

function seachpullethouse(Request $request){
    $searchcode = $request->code;     
    $mpullethouse = DB::table('mpullethouses')->query();

    if(!empty($searchcode)){
        $query ->Where('mpullethouses.code','like','%'.$searchcode.'%');
    }

    $query ->select('mpullethouses.*')->get();
    return response()->json(['mpullethouse'=>$mpullethouse]);
}

但似乎这是错误的...可以请任何人帮助我吗?? ...

Answer 1

您可以使用when。

public function seachpullethouse(Request $request)
{
    $searchcode = $request->code;

    $mpullethouse = DB::table('mpullethouses')
        ->when($searchcode, function ($query) use ($searchcode) {
            return $query->where('code', 'like', "%{$searchcode}%");
        })
        ->get();

    return response()->json(['mpullethouse' => $mpullethouse]);
}

有关详情，请查看https://laravel.com/docs/5.4/queries#conditional-clauses

基于Laravel5中传递参数的多个Where子句

1 个答案: