Add field in product Prestashop 1.7 - prestashop

Question

Why is prestashop don't save my modification into database?
Using prestashop 1.7
/override/classes/Product.php
class Product extends ProductCore {
public $por_gan; public function __construct ($idProduct = null, $idLang = null, $idShop = null) {
$definition = self::$definition;
$definition['fields']['por_gan'] = array('type' => self::TYPE_INT, 'required' => false);
parent::__construct($idProduct, $idLang, $idShop); } }
In ProductInformation.php
->add('por_gan', 'Symfony\Component\Form\Extension\Core\Type\NumberType', array(
'required' => false,
'label' => $this->translator->trans('Beneficio', [], 'Admin.Catalog.Feature'),
'constraints' => array(
new Assert\NotBlank(),
new Assert\Type(array('type' => 'numeric'))
),
))
In form.html.twing
<div class="col-md-6">
<label class="form-control-label">% de beneficio</label
{{ form_widget(form.step1.por_gan) }}
</div>
Thanks

Answer 1

I’ve successfully added an extra tab in admin product page.
It's working fine. I think a better approach would be to create a module in order to make that modification easier to maintain.
Or you can use displayAdminProductsExtra hook, actionProductUpdate hook and actionProductAdd
The extra field is : frais_a_prevoir
I show all the files to modify but you have to check where the modification should be done inside the file (make a search and you will find)
Override /classes/Product.php
In class /classes/Product.php, there are 3 modifications to do :
1)
/** #var string Frais à prévoir */
public $frais_a_prevoir;
2)
'frais_a_prevoir' => array('type' => self::TYPE_HTML, 'lang' => true, 'validate' => 'isCleanHtml'),
3)
$sql->select(
'p.*, product_shop.*, stock.out_of_stock, IFNULL(stock.quantity, 0) as quantity, pl.`description`, pl.`description_short`, pl.`frais_a_prevoir`, pl.`link_rewrite`, pl.`meta_description`,
pl.`meta_keywords`, pl.`meta_title`, pl.`name`, pl.`available_now`, pl.`available_later`, image_shop.`id_image` id_image, il.`legend`, m.`name` AS manufacturer_name,
(DATEDIFF(product_shop.`date_add`,
DATE_SUB(
"'.$now.'",
INTERVAL '.$nb_days_new_product.' DAY
)
) > 0) as new'
);
In /src/PrestaShopBundle/Resources/views/Admin/Product/form.html.twig
<ul class="nav nav-tabs bordered">
<li id="tab_description_short" class="nav-item">{{ 'Summary'|trans({}, 'Admin.Catalog.Feature') }}</li>
<li id="tab_description" class="nav-item">{{ 'Description'|trans({}, 'Admin.Global') }}</li>
<li id="tab_frais_a_prevoir" class="nav-item">{{ 'frais_a_prevoir'|trans({}, 'Admin.Global') }}</li>
</ul>
<div class="tab-content bordered">
<div class="tab-pane panel panel-default active" id="description_short">
{{ form_widget(form.step1.description_short) }}
</div>
<div class="tab-pane panel panel-default " id="description">
{{ form_widget(form.step1.description) }}
</div>
<div class="tab-pane panel panel-default " id="frais_a_prevoir">
{{ form_widget(form.step1.frais_a_prevoir) }}
</div>
</div>
In /src/PrestaShopBundle/Form/Admin/Product/productInformation.php
->add('frais_a_prevoir', 'PrestaShopBundle\Form\Admin\Type\TranslateType', array(
'type' => 'Symfony\Component\Form\Extension\Core\Type\TextareaType',
'options' => [
'attr' => array('class' => 'autoload_rte'),
'required' => false
],
'locales' => $this->locales,
'hideTabs' => true,
'label' => $this->translator->trans('frais_a_prevoir', [], 'Admin.Global'),
'required' => false
))
in src/PrestaShopBundle/Model/Product/AdminModelAdapter.php:
$this->translatableKeys = array(
'name',
'description',
'description_short',
'frais_a_prevoir',
'link_rewrite',
'meta_title',
'meta_description',
'available_now',
'available_later',
'tags',
);
//define unused key for manual binding
$this->unmapKeys = array('name',
'description',
'description_short',
'frais_a_prevoir',
'images',
'related_products',
'categories',
'suppliers',
'display_options',
'features',
'specific_price',
'virtual_product',
'attachment_product',
);
2)
'frais_a_prevoir' => $this->product->frais_a_prevoir,
In database, add a column frais_a_prevoir in table product_lang

Answer 2

Here is an option to do this using module and does not change core files
in your MyModule.php
use PrestaShopBundle\Form\Admin\Type\TranslateType;
use PrestaShopBundle\Form\Admin\Type\FormattedTextareaType;
use Symfony\Component\Form\Extension\Core\Type\TextareaType;
use Symfony\Component\Form\Extension\Core\Type\FormType;
public function hookDisplayAdminProductsExtra($params)
{
$productAdapter = $this->get('prestashop.adapter.data_provider.product');
$product = $productAdapter->getProduct($params['id_product']);
$formData = [
'ebay_reference' => $product->ebay_reference,
];
$formFactory = $this->get('form.factory');
$form = $formFactory->createBuilder(FormType::class, $formData)
->add('ebay_reference', TranslateType::class, array(
'required' => false,
'label' => 'Ebay reference',
'locales' => Language::getLanguages(),
'hideTabs' => true,
'required' => false
))
->getForm()
;
return $this->get('twig')->render(_PS_MODULE_DIR_.'MyModule/views/display-admin-products-extra.html.twig', [
'form' => $form->createView()
]) ;
}
public function hookActionAdminProductsControllerSaveBefore($params)
{
$productAdapter = $this->get('prestashop.adapter.data_provider.product');
$product = $productAdapter->getProduct($_REQUEST['form']['id_product']);
foreach(Language::getLanguages() as $language){
$product->ebay_reference[ $language['id_lang'] ] =
$_REQUEST['form']['ebay_reference'][$language['id_lang']];
}
$product->save();
}
in your display-admin-products-extra.html.twig
<div class="row" >
<div class="col-md-12">
<div class="form-group">
<h3>Ebay reference</h3>
{{ form_errors(form.ebay_reference) }}
{{ form_widget(form.ebay_reference) }}
</div>
</div>
</div>