将数据从控制器传递到刀片视图

Question

I want to pass data from my controller to blade view. What am I missing?

Controller:

    public function getRolesFront(){

        $roles= Role::join(
        'user_roles',
        'roles.id', 
        '=', 
        'user_roles.role_id')
        ->join(
        'users', 
        'user_roles.user_id',
        '=',
        'users.id')
        ->select(
        'user_roles.id AS row_id',
        'user_roles.user_id',
        'roles.name AS name',
        'roles.function AS function',
        'users.name AS user_name',
        'user_roles.role_id')
        ->orderBy('user_roles.user_id')
        ->get();

        return view('users_view', compact($roles));
    }

web.php

Route::get('/userslist','RoleController@getRolesFront');

blade

<tr>
  @foreach($roles as $role)
  {{$role->role_id}}
  @endforeach
</tr>

the error is:

Undefined variable: roles (View: C:\laragon\www\ProjectoFinalesources\views\users_view.blade.php)

Answer 1

When using compact, don't add the actual variable, but rather the string name of the variable that was defined previously in code.

So, not:

return view('users_view', compact($roles));

but rather:

return view('users_view', compact('roles'));