Laravel validation

[barryvdh]

To make it easy to validate, we can use the Laravel validator with Symfony forms:

 $form = $factory->create(FormType::class, $user)
        ->add('name', TextType::class, [
            'rules' => 'required',
        ])
        ->add('email', EmailType::class, [
            'rules' => 'email|unique'
        ]);

This would run the validator post-submit, so you can check $form->isValid() after submitting the form. When failed, the errors on the form are added.

This seems to work already with this commit: 811ca4c

Next step would be to:

• Make the required option based on the rule, but this would change the default (Symfony default is required = true), to make front-end always in sync with back-end validation
• Add HTML5 attributes for rules (eg; min:3 -> minlength attribute etc)

[barryvdh]

So I can add the required rule when the required option is set, but the other way around doesn't seem to work; b4a4348

[barryvdh]

So front-end validation is roughly working: 64ff0cb
And setting default required state with the config: f1ccbc1

Could perhaps add some rules based on the type (eg Emailtype -> add email rules), but not really sure if that's possible.

[barryvdh]

https://laravel.com/docs/5.4/upgrade#upgrade-5.4.0

Validation: Method Names
The addError method has been renamed to addFailure. In addition, the doReplacements method has been renamed to makeReplacements. Typically, these changes will only be relevant if you are extending the Validator class.

[alejobit]

When no rules defined:

BadMethodCallException in Validator.php line 3295:
Method [validateNullable] does not exist.

This is my composer dependencies:

    "require": {
        "php": ">=5.5.9",
        "laravel/framework": "5.2.*",
        "barryvdh/laravel-form-bridge": "^0.3.2"
    },

Temporary solution: comment lines 49-51 in ValidationTypeExtension

            if (!in_array('required', $rules) && !in_array('nullable', $rules)){
                $rules[] = 'nullable';
            }

[barryvdh]

Ah, nullable doesn't exist in 5.2 we should probably add a check indeed.

[barryvdh]

Should be fixed with latest v0.3.3

[bobmulder]

Since #30 got closed, I'd like to mention that I got an issue with validation using the CollectionType in my parent form. Figured out that constraints (validation by Symfony Form itself) is working well. It seems that rules (implemented by @barryvdh ) don't work on child forms...

Any hint @barryvdh? I have no clue XD

Regards, Bob

[barryvdh]

Do you have a test case?

[bobmulder]

I'll post some code tomorow. Or do you prefer unit tests?

[barryvdh]

Nee a simple thing I can put in my own Laravel app is fine

[bobmulder]

What about this? Simplified it but should work...

Parent

<?php

namespace App\Core\Http\Forms\Types;

use Illuminate\Validation\Rule;
use Laravel\Nova\Fields\Number;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Component\Form\Extension\Core\Type\CollectionType;
use Symfony\Component\Form\Extension\Core\Type\CountryType;
use Symfony\Component\Form\Extension\Core\Type\DateType;
use Symfony\Component\Form\Extension\Core\Type\EmailType;
use Symfony\Component\Form\Extension\Core\Type\MoneyType;
use Symfony\Component\Form\Extension\Core\Type\NumberType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\Form\Extension\Core\Type\TelType;
use Symfony\Component\Form\Extension\Core\Type\TextareaType;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\FormBuilderInterface;

class ParentFormType extends AbstractType
{

    public function __construct()
    {
    }

    public function buildForm(FormBuilderInterface $builder, array $options): void
    {
        $auth = auth();

        $builder
            ->add('sizeTo', NumberType::class, [
                'required' => true,
                'rules' => [
                    'min:00',
                    'max:99'
                ]
            ])
            ->add('weight', NumberType::class, [
                'required' => false,
                'rules' => [
                    'numeric'
                ]
            ])
            ->add('weightUnit', TextType::class, [
                'required' => false,
                'rules' => [
                    Rule::in(['kg', 'ha'])
                ]
            ])
            ->add('childs', CollectionType::class, [
                'label' => false,
                'entry_type' => ChildType::class,
                'allow_add' => true,
            ])
            ->add('submit', SubmitType::class);
    }
}

Child

<?php

namespace App\Core\Http\Forms\Types;

use Illuminate\Validation\Rule;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
use Symfony\Component\Form\Extension\Core\Type\CollectionType;
use Symfony\Component\Form\Extension\Core\Type\CountryType;
use Symfony\Component\Form\Extension\Core\Type\EmailType;
use Symfony\Component\Form\Extension\Core\Type\MoneyType;
use Symfony\Component\Form\Extension\Core\Type\NumberType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\Form\Extension\Core\Type\TelType;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;

class ChildType extends AbstractType
{

    public function __construct()
    {
    }

    public function buildForm(FormBuilderInterface $builder, array $options): void
    {
        $auth = auth();

        $builder
            ->add('class', TextType::class, [
                'required' => true,
            ])
            ->add('size', NumberType::class, [
                'required' => true,
                'rules' => [
                    'min:00',
                    'max:99'
                ]
            ]);
    }

    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults([
            'data_class' => ParentData::class,
        ]);
    }
}

[barryvdh]

I recreated this and added a level deeper. I made some changes (see 746fae0) and now I get this rule set:

It should add the validation for the children when at least 1 of the children is in the form input.

You can test this with 0.5@dev, can you check it out?

[bobmulder]

Great work Barry! I'll check it out Monday morning! Have a nice weekend.