Laravel get related models of related models

Question

I have a RepairRequest model, which is associated with a Vehicle. ``` class RepairRequest extends \Eloquent { public function vehicle() { return $this->belongsTo('Vehicle'); } } class Vehicle extends \Eloquent { public function requests() { return $this->hasMany('RepairRequest'); } } ``` I would like to get all RepairRequests for the vehicle associated with a given RepairRequest, so I do ``` return RepairRequests::find($id)->vehicle->requests; ``` This works fine. However, RepairRequests have RepairItems: ``` // RepairRequest class public function repairItems() { return $this->hasMany('RepairItem', 'request_id'); } // RepairItem class public function request() { return $this->belongsTo('RepairRequest', 'request_id'); } ``` which I would like to return too, so I do ``` return RepairRequests::find($id)->vehicle->requests->with('repairItems'); ``` but I get the following exception: ``` Call to undefined method Illuminate\Database\Eloquent\Collection::with() ``` How can I write this so th…

Accepted Answer

Load related models using `load` method on the Collection:

```
return RepairRequests::find($id)->vehicle->requests->load('repairItems');
```

which is basically the same as:

```
$repairRequest = RepairRequests::with('vehicle.requests.repairItems')->find($id);

return $repairRequest->vehicle->requests;
```

Laravel get related models of related models

Solution

Problem