Cart Products - extend EXT:cart with products 

Extension key

cart_events

Package name

extcode/cart-events

Version

main

Language

en

Author

Daniel Gohlke & Contributors

License

This document is published under the Open Publication License.

Rendered

Thu, 29 Jan 2026 15:21:08 +0000

Cart Events needs to be used together with EXT:cart.

• EXT:cart itself is only the base for a webshop.

• EXT:cart_events provides events which can be created in the TYPO3 backend.

  • Those events fit many use cases for seminars, workshops, theatre performances or generally date-related seat reservations.
  • The events and their dates can be displayed on the website with a list view and a detail view.
  • As said does it extend EXT:cart so those products can be purchased with the cart of EXT:cart.

Slack 

There is an own channel at the TYPO3 Slack. Please use this cannel to contact us.

The URL is: https://typo3.slack.com/messages/ext-cart/

Support 

If you need further support, please contact me.

Be aware that this support might not be free!

Installation using Composer 

The recommended way to install the extension is by using Composer. In your Composer based TYPO3 project root, just do

composer require extcode/cart-events.

Installation from TYPO3 Extension Repository (TER) 

Download and install the extension with the extension manager module.

Latest version from git 

You can get the latest version from git by using the git command:

git clone git@github.com:extcode/cart_events.git

Preparation: Include static TypoScript 

The extension ships some TypoScript code which needs to be included.

1. Switch to the root page of your site.
2. Switch to the Template module and select Info/Modify.
3. Press the link Edit the whole template record and switch to the tab Includes.
4. Select Shopping Cart - Cart Events at the field Include static (from extensions):

Breaking Changes 

Features 

Description 

In TYPO3 v11 <f:paginate> has been removed and is implemented via the controller.

Affected Installations 

All installations are affected by this change.

Migration 

If the templates for the lists of products in the frontend has been overwritten, then these templates must also be adapted. If pagination is not desired, a custom template must be used for the product list.

Description 

Because in TYPO3 v11 no pagination in the frontend is possible without an own ViewHelper or an extension, the list action in the ProductController was extended by the pagination. Via TypoScript it can be defined how many products should be displayed per page.

Integration 

An example was implemented in the list action template.

Breaking Changes 

Features 

Description 

The new hook allows you to modify a product that has been newly loaded from the database before passing it to the shopping cart. A similar hook already exists in extcode/cart, but it is more unspecific and theoretically accesses all products. The new hook will be introduced to apply the temporarily lowered sales tax in Germany to events in the shopping cart.

The hook can be used as follows:

$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['cart_events']['getProductFromEventDate'][1592547127] =
    \Extcode\CartCovid19Tax\Hooks\TaxClassOverride::class;

The class must then provide the method changeProductFromEventDate and receives ExtcodeCartDomainModelCartProduct and an array as parameters. In the array the ExtcodeCartDomainModelCartCart and ExtcodeCartEventsDomainModelEventDate are currently passed.

/**
 * change the product
 *
 * @param Product $product
 * @param array $params
 */
public function changeProductFromEventDate(Product $product, array $params): void
{
    /** @var Cart $cart */
    $cart = $params['cart'];

    /** @var EventDate $eventDate */
    $eventDate = $params['eventDate'];

    // TODO: change the product
}

Features 

Breaking Changes 

Description 

This feature allow different price categories for an event date. Each event date can have several price categories with special prices as well. In the event date a checkbox allows the seat handling in the event date or for each price category itself. In frontend the customer see a selector for the price category. Some new JavaScript shows the price for the selected price category.

Impact 

Templates were adapted to realize the selection of price categories in the output. In TYPO3 instances where the files below have been modified, adding events to the shopping cart might not work correctly.

Affected Installations 

Instances which use custom partial or templates for:

EXT:cart/Resource/Private/Partials/Event/CartForm.html EXT:cart/Resource/Private/Partials/Event/Price.html EXT:cart/Resource/Private/Partials/Event/Seats.html EXT:cart/Resource/Private/Templates/Event/Show.html

or own JavaScript and Stylesheets:

EXT:cart/Resource/Public/JavaScripts/cart_events.js EXT:cart/Resource/Public/Sheetsheets/cart_events.css

Migration 

If any of the above files have been overwritten, the changes should be applied accordingly.

Features 

Important 

Description 

In order to allow to individualize events when adding them to the cart, a new addToCart finisher for the form framework allow to load a form and submit the form with the selected event. The fields are handled as frontend variants in the cart product. They have no intended impact on the price or stock handling.

An example form template 'Cart Events - Example' can be used to create different forms for different events. It can also serve as a template for manually creating forms.

Description 

This version brings two Indexer for ke_search. The Cart Events Indexer is for Indexing events if you use the list and show plugin. The Cart Single Event Indexer is for Indexing the pages if you show events on single pages with the page type Cart: Event (doktype: 186).

Description 

Change template EXT:cart_events/Resources/Private/Templates/Event/Show.html.