Ash FrameworkAF
Ash Framework•3y ago•
4 replies
Ybireder

Additional attributes in many-to-many relations

Hi there,

I'm using a many-to-many relation between two resources. The resources Ingredient and Store are related through the resource Price (an ingredient is available at a store for a certain price).
The Price resource has the additional attributes :amount and :price.

Ideally, I'd like to have an action on the Ingredient resource to add a store. Somewhat like this:
    update :add_store do
      argument :store_id, :string, allow_nil?: false
      argument :amount, :float
      argument :price, :int
      ...
    end


This action should create a new price with the given attributes, but I'm struggling to implement the action. On other many-to-many relations, I've used change manage_relationship(:stores, type: :append) but I can't figure out how to add the additional arguments.
Was this page helpful?