Filament•2mo ago

Using Spatie/Laravel-Data to validate Filament Forms

Is it possible to take advantage of Spatie/Laravel-Data to validate Filament forms? Looking to integrate both for consistent validation across API, commands, jobs, and Filament forms. Current approach:

$rules = StockMovementData::getValidationRules([]);
return [
    TextInput::make('quantity')
        ->rules($rules['quantity'])
        ->numeric()
];

$rules = StockMovementData::getValidationRules([]);
return [
    TextInput::make('quantity')
        ->rules($rules['quantity'])
        ->numeric()
];

While this works for basic rules, it doesn't handle: - Complex validations requiring context (ValidationContext) - Custom messages - Type casting - Data Object reusability Has anyone successfully integrated these tools? Looking for examples or best practices.

Solution:

got it! example: ```php...

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3 Replies

Bruno SilvaOP•2mo ago

jamesdscrdo•4w ago

I'm also interested in this, as I plan to use filament/forms only and glue everything with laravel-data..

Solution

Bruno Silva•4w ago

got it! example:

// UserData
<?php

namespace App\Data;

use App\Actions\CreateUserAction;
use App\Models\User;
use Spatie\LaravelData\Data;
use Spatie\LaravelData\Support\Validation\ValidationContext;

class UserData extends Data
{
  public function __construct(
      public string $name,
      public string $email,
      public string $password,
  ) {}
  
  public static function rules(ValidationContext $context): array
  {
      return [
          'name' => [
              function ($attribute, $value, $fail) use ($context) {
                  if ($context->payload['email'] === 'bruno') {
                      $fail('Cannot use the name bruno in the email');
                  }
              },
          ],
          'email' => ['required', 'email'],
          'password' => ['required'],
      ];
  }
  
  public static function messages(): array
  {
      return [
          'name.required' => 'The name is required',
          'email.required' => 'The email is required',
          'email.email' => 'Invalid email',
      ];
  }
  
  public static function create(array $data): User
  {
      return CreateUserAction::run(self::validateAndCreate($data));
  }
}

// CreateUser
<?php

namespace App\Filament\Resources\UserResource\Pages;

use App\Data\UserData;
use App\Filament\Resources\UserResource;
use Filament\Resources\Pages\CreateRecord;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Validation\ValidationException;

class CreateUser extends CreateRecord
{
  protected static string $resource = UserResource::class;

  protected function handleRecordCreation(array $data): Model
  {
      try {
          return UserData::create($data);
      } catch (ValidationException $e) {
          $errors = collect($e->errors())->mapWithKeys(function ($messages, $key) {
              return ["data.$key" => $messages];
          })->toArray();
          throw ValidationException::withMessages($errors);
      }
  }
}

// UserData
<?php

namespace App\Data;

use App\Actions\CreateUserAction;
use App\Models\User;
use Spatie\LaravelData\Data;
use Spatie\LaravelData\Support\Validation\ValidationContext;

class UserData extends Data
{
  public function __construct(
      public string $name,
      public string $email,
      public string $password,
  ) {}
  
  public static function rules(ValidationContext $context): array
  {
      return [
          'name' => [
              function ($attribute, $value, $fail) use ($context) {
                  if ($context->payload['email'] === 'bruno') {
                      $fail('Cannot use the name bruno in the email');
                  }
              },
          ],
          'email' => ['required', 'email'],
          'password' => ['required'],
      ];
  }
  
  public static function messages(): array
  {
      return [
          'name.required' => 'The name is required',
          'email.required' => 'The email is required',
          'email.email' => 'Invalid email',
      ];
  }
  
  public static function create(array $data): User
  {
      return CreateUserAction::run(self::validateAndCreate($data));
  }
}

// CreateUser
<?php

namespace App\Filament\Resources\UserResource\Pages;

use App\Data\UserData;
use App\Filament\Resources\UserResource;
use Filament\Resources\Pages\CreateRecord;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Validation\ValidationException;

class CreateUser extends CreateRecord
{
  protected static string $resource = UserResource::class;

  protected function handleRecordCreation(array $data): Model
  {
      try {
          return UserData::create($data);
      } catch (ValidationException $e) {
          $errors = collect($e->errors())->mapWithKeys(function ($messages, $key) {
              return ["data.$key" => $messages];
          })->toArray();
          throw ValidationException::withMessages($errors);
      }
  }
}

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Using Spatie/Laravel-Data to validate Filament Forms