Help for Aimeos

Hi,

I would like to apply discount only when 2 or more products from a specific category are added.
There are 2 way's (that I can think of) to approach this

1) Add default discount to the product
When the customer adds the product to the basket he will get a notification to add another product from that category to the basket.
2) Use products without discount
When a customer adds a minimum of 2 (different) products from a specific category; a discount on those products is applied

How can I achieve this?

In the current dev-master version, there's a new rule system to apply price changes depending on arbitrary conditions which makes it much easier to achieve what you want.

For 2020.10 LTS, the easiest way is to create a basket plugin, that adds the discount if two different products of the same category are in the basket:
https://aimeos.org/docs/latest/provider ... t-plugins/

@ameos

What would be the advantage of using the basket plugin over the controller?

I read somewhere that it was advised certain things should not be done in the plugin but in the controller (basket specific).

I have created similar functionality as OP by decorating the basket controller and apply/remove a coupon of a type percent.

How would the discount look when applying it via the plugin approach?

Adding features using a decorator for the basket controller or extending the basket controller is easier to understand but limited in what you can react to. On the other side, a basket plugin can react on any event even not related to something the basket controller cares about but event systems are hard to debug.