Filament•13mo ago

Refactoring closures into a trait (or some other structure)

I have a very large form with tonnes of dependant fields, dynamic hints, options etc. The entire form is full of closures and it's getting to a state where it's unweildy. I was wondering if it's possible to refactor the code into a trait or some other file where I can keep the various functions organised. eg. I have the following

  ->afterStateHydrated(fn(callable $get, callable $set) => $this->hydrateProduct($get, $set))

  ->afterStateHydrated(fn(callable $get, callable $set) => $this->hydrateProduct($get, $set))

With a public function doing the legwork:

  public function hydrateProduct($get = null, $set = null)
  {
      if ($get('product')) {
          $this->product = Product::find($get('product'));
          if ($this->product) {
              $set('dependant_field', null);
              $set('manufacturer', $this->product->manufacturer->id);
              $set('price', $this->product->price);
          }
      }
  }

  public function hydrateProduct($get = null, $set = null)
  {
      if ($get('product')) {
          $this->product = Product::find($get('product'));
          if ($this->product) {
              $set('dependant_field', null);
              $set('manufacturer', $this->product->manufacturer->id);
              $set('price', $this->product->price);
          }
      }
  }

When I move hydrateProduct into a trait though, I get errors, eg:

Argument #1 ($get) must be of type callable, null given, called in /private/var/www/vhosts/gunthertore/vendor/livewire/livewire/src/HydrationMiddleware/CallPropertyHydrationHooks.php on line 20

make $get null by default:

App\Http\Livewire\Configurator\SectionalDoors::hydrateProduct(): Argument #2 ($set) must be of type callable, Livewire\Request given, called in /private/var/www/vhosts/gunthertore/vendor/livewire/livewire/src/HydrationMiddleware/CallPropertyHydrationHooks.php on line 20

Liverwire\Request? OK:

App\Http\Livewire\Configurator\SectionalDoors::hydrateProduct(): Argument #2 ($set) must be of type Livewire\Request, Closure given, called in /private/var/www/vhosts/gunthertore/app/Http/Livewire/Configurator/SectionalDoors.php on line 124

You get the picture. What am I doing wrong? Is this even possible? Is there a better way to separate the functions out than this? Thanks

1 Reply

rominronin•13mo ago

OK this actually works 100%, the issue I faced was ACTUALLY because the method name I used seems to be used by Filament for something else, changing the name to something else (I used productHydration()) worked as desired.

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Refactoring closures into a trait (or some other structure)