Question

我想用查询参数创建一个过滤器，在这里我想在3个地方做，但是如果其中一个不存在，那么就不会有问题，因为它将仅根据过滤器显示，如果存在是没有查询字符串，那么它将显示所有数据

public function VendorInfoFilter(Request $request)
    {
        $vendor  = DB::table('schema.data as d')
                    ->where('d.status','=',$request->status)
                    ->orderBy('d.id')
                    ->get();   
        return response()->json($vendor);

    }

Answer 1

尝试一下

public function VendorInfoFilter(Request $request)
    {
        $vendor  = DB::table('schema.data')
                    ->where('status','=',$request->status)
                    ->orderBy('id')
                    ->get();   
        return response()->json($vendor);

    }

Answer 2

public function VendorInfoFilter(Request $request)
    {
        $vendor  = DB::table('schema.data as d')
                    ->when($request->status, function ($q, $status) { 
                       return $q->where('d.status','=', $status);
                    })
                    ->when($request->status_two, function ($q, $status_two) { 
                       return $q->where('d.status_two','=', $status_two);
                    })
                    ->orderBy('d.id')
                    ->get();   
        return response()->json($vendor);

    }

Answer 3

作为参考，确切的代码可能对您不起作用。

public function VendorInfoFilter(Request $request)
{
    $vendor  = DB::table('schema.data as d');

    if (!empty($request->status_one)) {
        $vendor = $vendor->where('d.status','=', $request->status_one);    
    }

    if (!empty($request->status_two)) {
        $vendor = $vendor->where('d.status','=', $request->status_two);  
    }

    if (!empty($request->status_three)) {
        $vendor = $vendor->where('d.status','=', $request->status_three); 
    }

    if (empty($request->status_one) && empty($request->status_two) && empty($request->status_three)) {
        $vendor= $vendor->where('d.status','=', $request->status_one)->where('d.status','=', $request->status_two)->where('d.status','=', $request->status_three);
    }

    $result = $vendor->orderBy('d.id')
                ->get();   

    return response()->json($result);
}

如何在laravel中使用查询字符串制作过滤器

3 个答案: