Collection Validation

ProductDetailsFieldset.php

<?php

namespace Application\Form;

use Application\Entity\ProductDetails;
use Doctrine\Common\Persistence\ObjectManager;
use DoctrineModule\Stdlib\Hydrator\DoctrineObject as DoctrineHydrator;
use Zend\Form\Fieldset;
use Zend\InputFilter\InputFilterProviderInterface;

class ProductDetailsFieldset extends Fieldset implements InputFilterProviderInterface
{

    public function __construct(ObjectManager $objectManager)
    {
        parent::__construct('productDetails');

        $this->setHydrator(new DoctrineHydrator($objectManager))
            ->setObject(new ProductDetails());

        $this->add([
            'type' => 'Zend\Form\Element\Hidden',
            'name' => 'id',
        ]);

        $this->add([
            'type' => 'Zend\Form\Element\Text',
            'name' => 'description',
            'options' => [
                'label' => 'Opis',
            ],
        ]);

        $this->add([
            'type' => 'Zend\Form\Element\Select',
            'name' => 'language',
            'options' => [
                'label' => 'Język',
                //'empty_option' => 'Wybierz język',
                'value_options' => [
                    'pl' => 'polski',
                    'cs' => 'czeski',
                    'en' => 'angielski',
                ],
            ],
        ]);
    }

    public function getInputFilterSpecification()
    {
        return [
            'id' => [
                'required' => false,
            ],
            'description' => [
                'required' => true,
                'filters' => [
                    ['name' => 'Zend\Filter\StringTrim'],
                    ['name' => 'Zend\Filter\StripTags'],
                ],
                'validators' => [
                    ['name' => 'Zend\Validator\StringLength',
                        'options' => [
                            'max' => 500
                        ],
                    ],
                ],
            ],
            'language' => [
                'required' => true,
            ],
        ];
    }
}

ProductEditionForm.php

<?php

namespace Application\Form;

use Doctrine\Common\Persistence\ObjectManager;
use DoctrineModule\Stdlib\Hydrator\DoctrineObject as DoctrineHydrator;
use Zend\Form\Form;

class ProductEditionForm extends Form
{

    public function __construct(ObjectManager $objectManager, $formManager)
    {
        parent::__construct('product-edition');

        $this->setHydrator(new DoctrineHydrator($objectManager));

        $productFieldset = $formManager->get('product-fieldset');
        $productFieldset->setUseAsBaseFieldset(true);
        $this->add($productFieldset);

        $this->add([
            'type' => 'Zend\Form\Element\Submit',
            'name' => 'submit',
            'attributes' => [
                'value' => 'Wyślij'
            ],
        ]);

        $this->setValidationGroup([
            'product' => [
                'name',
                'code',
                'manufacturer',
                'productDetails',
                'type',
                'prices',
                'sizes',
                'colors'
            ],
        ]);
    }
}

ProductFieldset.php

<?php

namespace Application\Form;

use Application\Entity\Product;
use Doctrine\Common\Persistence\ObjectManager;
use DoctrineModule\Stdlib\Hydrator\DoctrineObject as DoctrineHydrator;
use Zend\Form\Element;
use Zend\Form\Fieldset;
use Zend\InputFilter\InputFilterProviderInterface;
use Application\Form\TypeFieldset;

class ProductFieldset extends Fieldset implements InputFilterProviderInterface
{
    protected $productFieldset;

    public function __construct(ObjectManager $objectManager)
    {
        parent::__construct('product');

        $this->setHydrator(new DoctrineHydrator($objectManager))
            ->setObject(new Product());

        $this->setLabel('Produkt');

        $this->add([
            'type' => 'Zend\Form\Element\Hidden',
            'name' => 'id',
        ]);

        $this->add([
            'type' => 'Zend\Form\Element\Text',
            'name' => 'name',
            'options' => [
                'label' => 'Nazwa',
            ],
        ]);

        $this->add([
            'type' => 'Zend\Form\Element\Text',
            'name' => 'code',
            'options' => [
                'label' => 'Kod produktu',
            ],
        ]);

        $this->add([
            'type' => 'Zend\Form\Element\Checkbox',
            'name' => 'isSale',
            'options' => [
                'label' => 'Promocja',
            ],
        ]);

        $this->add([
            'type' => 'Zend\Form\Element\Checkbox',
            'name' => 'active',
            'options' => [
                'label' => 'Aktywny',
            ],
        ]);
    }

    public function init()
    {
        $this->add([
            'type' => 'manufacturerSelectFieldset',
            'name' => 'manufacturer',
            'options' => [
                'label' => 'Producent',
            ],
        ]);

        $this->add([
            'type' => 'typeSelectFieldset',
            'name' => 'type',
            'options' => [
                'label' => 'Kategoria',
            ],
        ]);

        $this->add([
            'type' => Element\Collection::class,
            'name' => 'prices',
            'options' => [
                'label' => 'Ceny',
                'count' => 1,
                'should_create_template' => true,
                'allow_add' => true,
                'target_element' => [
                    'type' => 'priceFieldset',
                ],
            ],
        ]);

        $this->add([
            'type' => Element\Collection::class,
            'name' => 'productDetails',
            'options' => [
                //'label' => 'Opisy',
                'count' => 1,
                'should_create_template' => true,
                'allow_add' => true,
                'target_element' => [
                    'type' => 'productDetailsFieldset',
                ],
            ],
        ]);

        $this->add([
            'type' => Element\Collection::class,
            'name' => 'sizes',
            'options' => [
                'label' => 'Rozmiary',
                'count' => 0,
                'should_create_template' => true,
                'allow_add' => true,
                'target_element' => [
                    'type' => 'sizeFieldset',
                ],
            ],
        ]);

        $this->add([
            'type' => Element\Collection::class,
            'name' => 'colors',
            'options' => [
                'label' => 'Kolory',
                'count' => 0,
                'should_create_template' => true,
                'allow_add' => true,
                'target_element' => [
                    'type' => 'colorFieldset',
                ],
            ],
        ]);
    }

    public function getInputFilterSpecification()
    {
        return [
            'id' => [
                'required' => false,
            ],
            'name' => [
                'required' => true,
                'filters' => [
                    ['name' => 'Zend\Filter\StringTrim'],
                    ['name' => 'Zend\Filter\StripTags'],
                ],
                'validators' => [
                    ['name' => 'Zend\Validator\StringLength',
                        'options' => [
                            'max' => 50,
                        ],
                    ],
                ],
            ],
            'code' => [
                'required' => false,
                'filters' => [
                    ['name' => 'Zend\Filter\StringTrim'],
                    ['name' => 'Zend\Filter\StripTags'],
                ],
                'validators' => [
                    ['name' => 'Zend\Validator\StringLength',
                        'options' => [
                            'max' => 30,
                        ],
                    ],
                ],
            ],
            'productDetails' => [
                'required' => true,
                'validators' => [
                    ['name' => 'Callback',
                        'options' => [
                            'callback' => [$this, 'checkIfUnique'],
                        ],
                    ],
                ],
            ],
        ];
    }

    public function checkIfUnique($value, $context)
    {
        $splitted = [];
        foreach ($context['productDetails'] as $pd)
        {
            $splitted[] = $pd['language'];
        }
        $counted = array_count_values($splitted);
        foreach ($counted as $unit)
        {
            if ($unit > 1)
            {
                return false;
            }
        }
        return true;
    }
}