# Discounts events ## Discount management The events below are dispatched when managing [discounts](https://doc.ibexa.co/en/latest/discounts/discounts/index.md): | Event | Dispatched by | | -------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [`BeforeCreateDiscountEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-BeforeCreateDiscountEvent.html) | [`DiscountServiceInterface::createDiscount()`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-DiscountServiceInterface.html#method_createDiscount) | | [`CreateDiscountEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-CreateDiscountEvent.html) | [`DiscountServiceInterface::createDiscount()`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-DiscountServiceInterface.html#method_createDiscount) | | [`BeforeEnableDiscountEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-BeforeEnableDiscountEvent.html) | [`DiscountServiceInterface::enableDiscount()`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-DiscountServiceInterface.html#method_enableDiscount) | | [`EnableDiscountEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-EnableDiscountEvent.html) | [`DiscountServiceInterface::enableDiscount()`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-DiscountServiceInterface.html#method_enableDiscount) | | [`BeforeDisableDiscountEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-BeforeDisableDiscountEvent.html) | [`DiscountServiceInterface::disableDiscount()`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-DiscountServiceInterface.html#method_disableDiscount) | | [`DisableDiscountEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-DisableDiscountEvent.html) | [`DiscountServiceInterface::disableDiscount()`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-DiscountServiceInterface.html#method_disableDiscount) | | [`BeforeDeleteDiscountEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-BeforeDeleteDiscountEvent.html) | [`DiscountServiceInterface::deleteDiscount()`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-DiscountServiceInterface.html#method_deleteDiscount) | | [`DeleteDiscountEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-DeleteDiscountEvent.html) | [`DiscountServiceInterface::deleteDiscount()`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-DiscountServiceInterface.html#method_deleteDiscount) | | [`BeforeUpdateDiscountEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-BeforeUpdateDiscountEvent.html) | [`DiscountServiceInterface::updateDiscount()`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-DiscountServiceInterface.html#method_updateDiscount) | | [`UpdateDiscountEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-UpdateDiscountEvent.html) | [`DiscountServiceInterface::updateDiscount()`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-DiscountServiceInterface.html#method_updateDiscount) | ## Form events ### Form The events below allow you to [customize the discounts creation wizard](https://doc.ibexa.co/en/latest/discounts/extend_discounts_wizard/index.md). | Event | Dispatched by | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [`CreateDiscountCreateStructEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-CreateDiscountCreateStructEvent.html) | [`DiscountFormMapperInterface::mapCreateDataToStruct()`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-DiscountFormMapperInterface.html#method_mapCreateDataToStruct) | | [`CreateDiscountUpdateStructEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-CreateDiscountUpdateStructEvent.html) | [`DiscountFormMapperInterface::mapUpdateDataToStruct()`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-DiscountFormMapperInterface.html#method_mapUpdateDataToStruct) | | [`CreateFormDataEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-CreateFormDataEvent.html) | [`DiscountFormMapperInterface::createFormData()`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-DiscountFormMapperInterface.html#method_createFormData) | | [`MapDiscountToFormDataEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-MapDiscountToFormDataEvent.html) | [`DiscountFormMapperInterface::mapDiscountToFormData()`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-DiscountFormMapperInterface.html#method_mapDiscountToFormData) | ### Form steps The following events are dispatched when rendering each step of the discount wizard, allowing you to add new fields to it: | Event | Event name | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------- | | [`CreateFormDataEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-Step-CreateFormDataEvent.html) | `ibexa.discounts.form_mapper..create_form_data` | | [`MapCreateDataToStructEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-Step-MapCreateDataToStructEvent.html) | `ibexa.discounts.form_mapper..map_create_data_to_struct` | | [`MapDiscountToFormDataEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-Step-MapDiscountToFormDataEvent.html) | `ibexa.discounts.form_mapper..map_discount_to_form_data` | | [`MapUpdateDataToStructEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Event-Step-MapUpdateDataToStructEvent.html) | `ibexa.discounts.form_mapper..map_update_data_to_struct` | The event classes are shared between steps, but they are dispatched with different names. Each step form mapper dispatches its own set of events. You can use the names specified above or generate them using the `createEventName` method, for example `CreateFormDataEvent::createEventName(GeneralPropertiesInterface::IDENTIFIER)` returns `ibexa.discounts.form_mapper.general_properties.create_form_data`. | Form mapper | Step identifier | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | [`ConditionsMapperInterface`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Admin-FormMapper-ConditionsMapperInterface.html) | [`conditions`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Admin-Form-Data-ConditionsInterface.html#constant_IDENTIFIER) | | [`GeneralPropertiesMapperInterface`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Admin-FormMapper-GeneralPropertiesMapperInterface.html) | [`general_properties`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Admin-Form-Data-GeneralPropertiesInterface.html#constant_IDENTIFIER) | | [`ProductConditionsMapperInterface`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Admin-FormMapper-ProductConditionsMapperInterface.html) | [`products`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Admin-Form-Data-ProductConditionInterface.html#constant_IDENTIFIER) | | [`UserConditionsMapperInterface`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Admin-FormMapper-UserConditionsMapperInterface.html) | [`target_group`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Admin-Form-Data-UserConditionInterface.html#constant_IDENTIFIER) | ### Back office These events are dispatched by the back office controllers after user chooses the "Save" action when creating or updating a discount. | Event | Dispatched by | Description | | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------ | ------------------------------------------------------------------------------ | | [`PreDiscountCreateEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Admin-Form-Event-PreDiscountCreateEvent.html) | `Ibexa\Bundle\Discounts\Controller\DiscountCreateController` | Dispatched when the discount creation is finished in the back office form | | [`PreDiscountUpdateEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-Discounts-Admin-Form-Event-PreDiscountUpdateEvent.html) | `Ibexa\Bundle\Discounts\Controller\DiscountEditController` | Dispatched when the discount modifications is finished in the back office form | ## Discount codes The event below allows you to inject your custom logic before the discount code is applied to a product in cart: | Event | Dispatched by | Description | | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------- | -------------------------------------------------------- | | [`BeforeDiscountCodeApplyEvent`](https://doc.ibexa.co/en/latest/api/php_api/php_api_reference/classes/Ibexa-Contracts-DiscountsCodes-Event-BeforeDiscountCodeApplyEvent.html) | `Ibexa\Bundle\DiscountsCodes\Controller\REST\DiscountCodeController` | Dispatched before a discount code is applied in the cart |