This module demonstrates various ways to extend the product page form in the Back Office (PrestaShop 9.0.0+).

Description tab

• A Demo custom field text input added after the built-in description field.

Customization tab (new tab inserted after Pricing)

• A My custom price money field stored alongside the product.

Custom tab content tab (inserted after the Customization tab)

• A second custom tab demonstrating how to add another tab using a separate form type.

Footer

• An Open supplier website link button added to the product form footer.

Modules tab (displayAdminProductsExtra hook)

• Renders a Twig template showing the stored custom product data -- demonstrates using displayAdminProductsExtra to add read-only information to the dedicated Modules tab.

When a product has combinations, the module also extends the combination edit form:

• A Demo custom field text input added after the References section.
• A Customization tab with a My custom price money field, inserted after the Price impact section.

1. actionProductFormBuilderModifier -- modifying the product form structure using FormBuilderModifier (adding fields and full tabs).
2. actionCombinationFormFormBuilderModifier -- same pattern applied to the combination form.
3. ProductCommandsBuilderInterface -- using CustomProductCommandsBuilder (tagged as core.product_command_builder) to dispatch a CQRS command when the product form is saved. This is the recommended approach specific to the product page.
4. actionAfterUpdateCombinationFormFormHandler -- saving combination custom data via an identifiable object hook.
5. Dedicated ObjectModel entities -- CustomProduct and CustomCombination persist data in their own tables (demoproductform_custom_product, demoproductform_custom_combination) without touching core tables.
6. Modern translation system -- using isUsingNewTranslationSystem().

Compatible with 9.0.0 and above versions.

1. Composer, see Composer to learn more

1. Download or clone module into modules directory of your PrestaShop installation
2. Rename the directory to make sure that module directory is named demoproductform*
3. cd into module's directory and run following commands:
   • composer install - to download dependencies into vendor folder
4. Install module:
   • from Back Office in Module Manager
   • using the command php ./bin/console prestashop:module install demoproductform

* Because the name of the directory and the name of the main module file must match.