Laravel Model data not available in Controller - php

Question

I'm new to Laravel. I might be making a basic mistake here but I've been trying and researching for a while, need some guidance here.
I have 2 routes:
Route::get('ordercontents/{ordercontent}', 'App\Http\Controllers\OrderContentsController#edit');
Route::get('ordercontents/delete/{ordercontents}', 'App\Http\Controllers\OrderContentsController#destroy');
Inside OrderContentsController.php I have the 2 functions, one to edit a record and another to delete it.
public function edit(\App\Models\Order_content $ordercontents)
{
dd($ordercontents); //the attributes will come out empty
$orderContentId = $ordercontents->id;
$ocs = getOrderContentDetails($orderContentId);
return view('ordercontents.edit')->with('ordercontents', $ocs);
}
public function destroy(\App\Models\Order_content $ordercontents)
{
$orderId = $ordercontents->order_id;
$ordercontents->delete();
return redirect('/new-ordercontent/' . $orderId)->with('success', 'Material removido da ordem de serviço!');
}
The model exists and is called Order_content.
Everything works well for the destroy function.
However, I'm struggling with the edit function.
If I do a dd($ordercontents); the attributes array of the object comes empty inside the edit function.
What am I missing? Thanks!

Answer 1

You have to make sure the name of the variable that is type-hinted in your method signature matches the route parameter for Route Model Binding:
"Laravel automatically resolves Eloquent models defined in routes or controller actions whose type-hinted variable names match a route segment name." - Laravel Docs
The method signature for edit can be adjusted to match the route parameter name:
public function edit(\App\Models\Order_content $ordercontent)
When these do not match you will have Dependency Injection happening so a new non-existing Model instance would be injected.
Laravel 8.x Docs - Routing- Route Model Binding - Implicit Binding