Question

我有一个像这样的Laravel查询，但是我得到了这样的错误

未定义的变量：关键字

$bookings = DB::table('bookings')
                    ->leftJoin('users', 'bookings.manager_id', '=', 'users.id')
                    ->leftJoin('projects', 'bookings.pr_project_id', '=', 'projects.id')
                    ->leftJoin('resources', 'bookings.pr_resource_id', '=', 'resources.id')
                    ->Where('unavailable','=','0')
                    ->orWhere(function ($query) {
                        $query->Where('users.name', 'LIKE', "%$keyword%")
                            ->Where('projects.project_name', 'LIKE', "%$keyword%")
                           ->Where('resources.r_name', 'LIKE', "%$keyword%");
                    })
                    ->orderBy('bookings.pr_working_date', 'desc')
                    ->paginate($perPage);

现在下面查询如何在Laravel中进行转换

   select * from bookings left join users on bookings.manager_id=users.id left join projects on bookings.pr_project_id=projects.id left join resources on bookings.pr_resource_id=resources.id where unavailable='0' AND (users.name like '%One Web Series%' or projects.project_name like '%One Web Series%' or resources.r_name like '%One Web Series%')

Answer 1

你需要像这样add the use()将变量传递给闭包范围：

function ($query) use($keyword) {

Answer 2

使用use() -

$bookings = DB::table('bookings')
                ->leftJoin('users', 'bookings.manager_id', '=', 'users.id')
                ->leftJoin('projects', 'bookings.pr_project_id', '=', 'projects.id')
                ->leftJoin('resources', 'bookings.pr_resource_id', '=', 'resources.id')
                ->Where('unavailable','=','0')
                ->orWhere(function ($query) use($keyword){
                    $query->Where('users.name', 'LIKE', "%$keyword%")
                        ->Where('projects.project_name', 'LIKE', "%$keyword%")
                       ->Where('resources.r_name', 'LIKE', "%$keyword%");
                })
                ->orderBy('bookings.pr_working_date', 'desc')
                ->paginate($perPage);

Answer 3

您可以使用use关键字将必要的变量从父作用域传递到闭包中。（即）

Where(function ($query) use($keyword)

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3 个答案: