php - 我如何用 laravel eloquent 编写这个查询

Question

我有表用户、部门、文件和共享文件。我想写一个查询，当用户尝试向另一个用户发送文件时，共享函数应该捕获文件的标题和发送文件的用户的部门，这些文件将保存在 shareFiles 表中。

• 用户表：id,department_id
• 文件表：id, title,user_id
• 部门表：id,name
• ShareFiles 表：title, file, department_id, user_id, sender,to

以下是我在分享功能中所做的

public function shareFile(Request $request)
    {

        $userfile = new UserFile();
        $userfile->sender = \Auth::user()->username;
        $userfile->to = $request->user;
        $userfile->title = File::select('title')->where(['user_id' => \Auth::user()->id])
        ->orWhere('id','=','user_id')->get();

        $userfile->department = DB::table('departments')->select('departments.name')
        ->join('users','departments.id','=','users.department_id')
        ->where(['users.id' => \Auth::user()->id])
        ->get();

        $userfile->user_id = \Auth::user()->id;
        $userfile->save();
        Session::flash('message','File successfully shared !!');
        return redirect('/hr/document');
    }

Answer 1

试试这个代码： -

For title selection:

$file = File::select('title')->where(['user_id' => \Auth::user()->id]) ->orWhere('id','=','user_id')->first();

For Department:

$dept = DB::table('departments')->select('departments.name') ->join('users','departments.id','=','users.department_id') ->where(['users.id' => \Auth::user()->id]) ->first();

注意：您还可以使用 value() 和 pluck()（以防您需要值数组）而不是 select()。