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27 minutes ago, ventura said:

Try it with something like that, new created name custom_boolean

Create a class override in module_name/override/classes/Category.php

 

<?php
class Category extends CategoryCore
{

    public $custom_boolean;

    public function __construct($id_category = null, $id_lang = null, $id_shop = null){
        self::$definition['fields']['custom_boolean'] =['type' => self::TYPE_BOOL, 'validate' => 'isBool'];
        parent::__construct($id_category, $id_lang, $id_shop);
    }

}

 

 

Actiion hooks something like that

 

    public function hookActionCategoryFormBuilderModifier(array $params)
    {
        $shopId = $this->context->shop->id;
        $categoryId = $params['id'];
        $langId = $this->context->language->id;
        $category = new Category( $categoryId, $langId, $shopId);
        $formBuilder = $params['form_builder'];
        
        $formBuilder->add(
            'custom_boolean',
            SwitchType::class,
            [
                         'label' => $this->l('Turn on or off'),
                          'required' => false,

                        'choices' => [
                            $this->l('Disabled') => 0,
                            $this->l('Enabled') => 1,
                           
                        ],

                    ]
        );


        $params['data']['custom_boolean'] = $category->custom_boolean;

        $formBuilder->setData($params['data']);

    }

    public function hookActionAfterUpdateCategoryFormHandler(array $params)
    {
        $this->updateData($params);
    }

    public function hookActionAfterCreateCategoryFormHandler(array $params)
    {
        $this->updateData($params);
    }

    private function updateData(array $params)
    {
        $formData = $params['form_data'];
        $cat = new Category((int)$params['id']);
        $cat->custom_boolean = $formData['custom_boolean'];
        $cat->update();
 
    }

 

I am halfway there. With this code I get the correct value from the DB but when I change the value I and click on Save I get an error: An error occurred while editing the category.

When I turned on debug mode I get this error An unexpected error occurred. [Symfony\Component\Debug\Exception\ContextErrorException code 0]: Notice: Undefined property: Category::$custom_boolean