This is a followup on my previous question, I’ll paste here the relevant part:
many_to_many :dishes, Dish do
through DailyMenuDish
join_relationship :daily_menu_dishes
sort [Ash.Sort.expr_sort(parent(daily_menu_dishes.position))]
source_attribute_on_join_resource :daily_menu_id
destination_attribute_on_join_resource :dish_id
end
I had this relationship and all was well if I just wanted to create it and display it in order using the position attribute on the join resource (see previous post).
Now I also wanted to update the dishes in the menu (to be precise, I transformed the create to be an upsert) and I’ve found the correct options to do so using manage_relationship but they work only if I comment out the sort option.
If I don’t, it fails with:
* ** (KeyError) key :parent_bindings not found in: %{
sort: [
{#Ash.Resource.Calculation.Expression<[expr: parent(daily_menu_dishes.position)]>,
:asc}
],
context: %{
private: %{actor: nil, authorize?: false, in_before_action?: true},
action: %Ash.Resource.Actions.Read{
arguments: [],
description: nil,
filter: nil,
get_by: [],
get?: false,
manual: nil,
metadata: [],
modify_query: nil,
name: :read,
pagination: false,
preparations: [],
primary?: true,
touches_resources: [],
transaction?: false,
type: :read
},
actor: nil,
authorize?: false,
accessing_from: %{name: :dishes, source: MyApp.MenuManagement.DailyMenu},
query_opts: [
verbose?: false,
actor: nil,
authorize?: false,
page: nil,
return_query?: false
],
initial_limit: 1,
initial_offset: 0,
page_opts: nil,
initial_query: #Ash.Query<
resource: MyApp.MenuManagement.Dish,
filter: #Ash.Filter<name == "baz">,
sort: [
{#Ash.Resource.Calculation.Expression<[expr: parent(daily_menu_dishes.position)]>,
:asc}
],
limit: 1
>,
filter_requests: []
},
bindings: %{
0 => %{type: :root, path: [], source: MyApp.MenuManagement.Dish}
},
resource: MyApp.MenuManagement.Dish,
current: 1,
calculations: %{},
aggregate_defs: %{},
in_group?: false,
current_aggregate_name: :aggregate_0,
aggregate_names: %{},
parent_resources: []
} at dishes, 2
(ash 2.17.3) lib/ash/api/api.ex:2324: Ash.Api.unwrap_or_raise!/3
iex:41: (file)
I wasn’t sure where to open an issue because on_lookup is from Ash core, while the :parent_binding error comes from Ash Postgres, let me know if it helps if I do it and if I need to provide some more information.
