Question

我在使用ajax进行选择时遇到问题：

“ SQLSTATE [42S22]：找不到列：1054'where子句'中的未知列'full_name'（SQL：从驱动器中将count（*）汇总为像%%▶这样的full_name的驱动程序”

public function drivers(Request $request)
    {
        $q = $request->get('q');

        return Driver::select("id", "first_name", "last_name"
                ,DB::raw("CONCAT(first_name,' ',last_name) as full_name"))
            ->where('full_name', 'like', "%$q%")->paginate(null, ['id', 'full_name as text']);
    }

我不知道问题出在哪里，有什么可能的解决办法？

谢谢

Answer 1

您不能在where子句中使用虚拟列或别名。因此，请尝试以下方法：

public function drivers(Request $request)
{
    $q = $request->get('q');

    return Driver::select("id", "first_name", "last_name",
           DB::raw("CONCAT(first_name,' ',last_name) as full_name"))
           ->having('full_name', 'like', "%$q%")->simplePaginate(10);
}

Answer 2

为什么不这样尝试

return Driver
    ::select("id", "first_name", "last_name",DB::raw("CONCAT(first_name,' ',last_name) as full_name"))
    ->whereRaw('full_name like %?%', [$q])
    ->paginate(null, ['id', 'full_name as text']);

https://laravel.com/docs/5.8/queries 原始方法

控制器连接问题

2 个答案: