Laravel select quizzes belonging to current user - php

Question

I'm currently working on a quiz application in laravel 5.6 and am attempting to fetch all quizzes that belong to the current authenticated user.
I have three tables:
users
quizzes
user_quizzes
The quizzes table simply holds all the information relating to the quiz such as:
- id
- quiz_name
- quiz_description
- active
- total_plays
- created_at
- updated_at
The users table is just the laravel default with minor changes:
- id
- username
- email
- password
- remember_token
- created_at
- updated_at
The user_quizzes table holds two fields (both foreign keys): user_id and quiz_id.
At the moment it outputs ALL the quizzes, rather than just ones belonging to the current user.
In my QuizController I have:
$quizzes = Quiz::find(Auth::user()->id)->with('user')->get();
And my QuizModel:
class Quiz extends Model
{
protected $table = 'quizzes';
public function user()
{
return $this->belongsTo('App\Models\User');
}
}
Finally the UserModel contains:
class User extends Authenticatable
{
use Notifiable;
protected $fillable = [
'username', 'email', 'password',
];
protected $hidden = [
'password', 'remember_token',
];
public function activation()
{
return $this->hasOne('App\Models\Activation');
}
public function profile()
{
return $this->hasOne('App\Models\Profile');
}
public function quizzes()
{
return $this->hasMany('App\Models\Quiz');
}
}
I have also tried using the DB facade with joins but received the same output (all quizzes returned, not just ones belonging to the current user). Here is what I did for that, just for reference:
$quizzes = DB::table('user_quizzes')
->join('users', 'users.id', '=', 'user_quizzes.user_id')
->join('quizzes', 'quizzes.id', '=', 'user_quizzes.quiz_id')
->get();
I feel like I am making a silly mistake, so any guidance would be greatly appreciated.

Answer 1

You need to change Eloquent relationship in the Model.
class User extends Model {
public function quizzes()
{
return $this->belongsToMany(Quiz::class, 'user_quizzes','user_id', 'quiz_id');
}
}
Same with Quiz Model
class Quiz extends Model
{
protected $table = 'quizzes';
public function user()
{
return $this->belongsToMany(User::class, 'user_quizzes','quiz_id', 'user_id');
}
}
DB facade you're doing incorrectly.
You want to fetch all quizzes for the users so you need to query quizzes table like this.
DB::table('quizzes')->leftJoin('user_quizzes', 'user_quizzes.quiz_id', 'quizzes.id')->join('users', 'user_quizzes.user_id', 'user_id')->where('users.id', $USER_ID)->get();