How to use conditions on creation and destory in Ash

Questions & Help Questions
2

You can do that with bulk destroy actions. We will be working on guides that explain how to use bulk actions more than what exists currently. But you can do this:

read :my_thumb_ups do
  filter expr(id == ^actor(:id))
end

ThumbUp
|> Ash.Query.for_read(:my_thumb_ups, %{}, actor: actor)
|> Ash.Query.filter(dental_lab_post.id == ^post_id)
|> ThumbUp.bulk_destroy!(:destroy)

You can put this behind a generic action:

action :remove, :atom do
  constraints one_of: [:ok]
  argument :post_id, :uuid, allow_nil?: false

  run fn input, context -> 
    ThumbUp
    |> Ash.Query.for_read(:my_thumb_ups, %{}, Ash.context_to_opts(context))
    |> Ash.Query.filter(dental_lab_post.id == ^input.post_id)
    |> ThumbUp.bulk_destroy!(:destroy)

   {:ok,  :ok}
  end
end

And then you can put that in your code_interface:

code_interface do
  define_for YourApi
  define :remove, args: [:post_id]
end

Then you can call it:

ThumbUp.remove!(post.id)