[TYPO3-mvc] Basket / session question

[Jan Kornblum]

Hi group,

while playing with extbase i try to build a "shop". I have a 
ProductModel and a fe_user-session based "basket". In this basket i 
want to store "individual" BasketItem-Objects (UID of ProductModel, 
Amount, Price) instead of real "big" ProductModel-Objects. Storing 
items into the basket and displaying the baskets content works...

Now i want the ProductController's listAction to display something like 
a "isInBasket / isNotInBasket" field in the view. But i have no idea 
how to do this:

- Extending the ProductModel with an "isInBasket"-Property is certainly 
the wrong way, as this property depends on the fe_user-session and also 
should not be persisted to the database. Independent from this, how and 
where to get this property filled?

- Creating a getProductsWithCurrentBasketInformation()-method in the 
ProductModel-repository, would this be a good way? But which kind of 
object should this return? Wroing place, isn't it?

- Creating a not persistable ProductWithBasketInformation-Model? Maybe 
extend the ProductModel class? This sound the best from above...

- And how to get the basket-information "mapped" into the 
Product-Objects? Would this be part of a service?

Can anybody give me a hint for the right direction? I would be happy :)

Kind regards, Jan