Laravel - defining the right relationship - laravel

Question

User Table: has zone_id field in it.
Zones table: has world_id field in it.
Each user can be in one zone, for example, zone_id = 1
Each zone belongs to one world, for example - world_id = 5
My desired output is returning user zone and world info.
This is how I can make it without any relationship set:
$zone = Zone::find($user->zone_Id);
$world = World::find($zone->world_id);
$data = $user;
$data['zone'] = $zone;
$data['zone']['world'] = $world;
My question is.. I'm sure relationship can be used for a cleaner code, but I'm not sure how to set it up.
Should I stick with the current code or define a relationship?
If the answer for 1 is define a relationship, Any help of what's the right relationship between these 3 models?
Solution 1:
`public function getZone(Request $request)
{
$token = $request->input('token');
$user = JWTAuth::toUser($token);
// Simplest example using relationships
$userWithZone = User::with('zone.world')->find($user->id); // You'll get the `zone` relationship info here, too
return $userWithZone;
}`
Error: returns "Call to a member function getQuery() on null"

Answer 1

Here's an example of how you can achieve this with Eloquent Relationships.
// User.php
class User
{
public function zone()
{
return $this->belongsTo(Zone::class);
}
}
// Zone.php
class Zone
{
public function world()
{
return $this->belongsTo(World::class);
}
}
Simplest example using relationships
$user = User::with('zone.world')->find($id); // You'll get the `zone` relationship info here, too
You can get more complex with your relationships if you want
$user = User::with(['zone' => function($query) {
$query->with('world')
->select('id', 'zone_name', 'world_id');
})->select('username', 'zone_id')->find($id);
or even...
$user = User::with(['zone' => function($query) {
$query->with(['world' => function($query2) {
$query2->select('id', 'world_name');
}])->select('id', 'zone_name', 'world_id');
})->select('username', 'zone_id')->find($id);
Your resulting $user will look something like:
'user' => [ // This is a Collection
'username',
'email',
'zone_id',
'zone' => [ // This is a Collection
'id',
'zone_name',
'world_id',
'world' => [ // This is a Collection
'id',
'world_name'
]
]
];