belongsTo not returning results as desired - laravel-5

Question

I would like to a user be able to only have one distrito (it means district in Portuguese). A distritocan have more than one user. It's a fairly simple relationship but the problem comes when you have a third table called distritosthat it's only job is to translate numbers into strings (I don't know the name of such tables).
Distrito table
$table->increments('id');
$table->string('distrito');
e.g.
ID DISTRITO
1 - Aveiro
2 - Beja
3 - ...
User tables
$table->string('name');
$table->string('last_name');
$table->string('profile_picture')->default('default.jpg');
$table->string('userProfile')->default('');
$table->float('stars')->default(0);
distrito_user table this table will reference where the user live
$table->integer('user_id'); //id of the user
$table->integer('distrito_id'); //Id of the district where the user lives
User's model
public function distritoUtilizador(){
return $this->belongsTo(DistritoUser::class);
}
DistritoUser's model
protected $table = 'distrito_user';
Calling the eloquent model
$user = Auth::user();
dd($user->distritoUtilizador);
It returns null.
First question: Is this the correct way to solve my problem (the user lives somewhere and I need to fill that location)?
If this is the right way to solve my problem: Why it's not returning the desired results?

Answer 1

For a simple one to many, just store the foreign key to distrito on the user model, no need for intermediate tables.
$table->increments('id')->unsigned();
$table->string('name');
$table->string('last_name');
$table->string('profile_picture')->default('default.jpg');
$table->string('userProfile')->default('');
$table->float('stars')->default(0);
$table->integer('distrito_id')->unsigned();
$table->foreign('distrito_id')->references('id')->on('distrito');
and get rid of the distrito_user table altogether. now use has this method:
public function distrito(){
return $this->belongsTo(Distrito::class, 'id');
}
while distrito has:
public function users(){
return $this->hasMany(User::class);
}
also change distrito migration to:
$table->increments('id')->unsigned();