Question

我对where命令有疑问。我在我的数据库表中有这个表单元素，有很多列，我需要搜索特定的值：customers和type。如下图所示......

    <form action="{{ route(shop.find) }}">
    <select class="form-control"  name="customers1" id="customers1">
    @foreach ($customers as $key => $value)
    <option value="{{ $key }}">{{ $value }}</option>
    @endforeach
    </select>
    <select class="form-control" name="type1" id="type1">
    @foreach ($types as $key => $value)
    <option value="{{ $key }}">{{ $value }}</option>
    @endforeach
    </select>
    </form>

在我的控制器中，我被困在where命令。

public function find(Request $request){
$customers = DB::table("tbl_customers")->pluck('name','id')->where('name', '=', $request->name);

//This where command is absolutely wrong. I need the right ways to do it. 
$types = DB::table("tbl_types")->pluck('race','raceid')->where('race', '=', $request->race);

return view('shop.find',compact('customers', 'types'));}

我不知道自己需要什么。或者我需要使用什么。我希望你们能帮忙。

Answer 1

执行pluck()->where()时，您将加载所有行，然后使用该集合。正确的语法是：

public function find(Request $request)
{
    $customers = DB::table("tbl_customers")->where('name', $request->name)->pluck('name', 'id');
    $types = DB::table("tbl_types")->where('race', $request->race)->pluck('race', 'raceid');
    return view('shop.find', compact('customers', 'types'));
}

使用where命令的表单值

1 个答案: