Laravel create related Model view, pass prefilled value - laravel

Question

i am implementing a backoffice system with many Models and Relations.
Now im stuck with my UI Stragegy:
Lets assume i have Houses and Rooms. One House has many Rooms.
I have created controllers for both Models the "Laravel" way.(Resource Controllers)
So i have routes for both of them
example.com/backoffice/house
example.com/backoffice/room
What i want to implement sounds simple:
I want an Button inside the Detail View of a House ("Create Room for this House") which redirects me to "room/create" but in the create view i want to set the value for "house_id" to the id of the House i am comming from. So i can normaly use the store method in the RoomController and then redirect back to the house.
I want a general way because i must use this function on many Models/Views. I am thinking about a session variable but i think eventually has someone a better way for generally handling such cases? Or a better idea for UI Handling?

Answer 1

Apparently, Laravel removed some of their awesome documentation for version 5.6, being nested resource controllers.
What you could do, is use nested routes.
Let's assume your current controllers are set up the following way:
Route::resource('houses', 'HouseController');
Route::resource('rooms', 'RoomController');
If you change this part to the following:
Route::resource('houses', 'HouseController');
Route::resource('houses.rooms', 'RoomController');
This couples every room to a house and is really easy to manage. It gives you URL's like houses/4/rooms/create, which gives you a house_id in your create method instantly:
public function create($houseId)
{
return view('houses.rooms.create', ['houseId' => $houseId]);
}
If you want to edit a room, it is exactly the same:
public function edit($houseId, $roomId)
The Laravel 5.1 documentation still has an example of this technique.

Answer 2

To do this, i would suggest the following way (there might be other ways also)
Change Route:
Route::get('room/create/{house_id?},'Controller#action')->name('room.create')
Add <a> tag in house_view.blade.php file.
Create Room for this House
Room Controller file.
public function formCreate($house_id)
{
return view('form.room_create', ['house_id' => $house_id]);
}
Add type hidden <input> tag in room_create.blade.php file
<input type="hidden" id="house_id" name="house_id" value="{{$house_id or ''}}">