Arjun Bajaj Comments - Answer Overflow

create :create do
  accept [:name, :desc]
  argument :user_id, :binary

  change fn changeset, %{actor: actor} = _context ->
    join = %{user_id: actor.id, role: :owner}
    changeset |> Ash.Changeset.manage_relationship(:users_join_assoc, join, type: :create)
  end
end

create :create do
  accept [:name, :desc]
  argument :user_id, :binary

  change fn changeset, %{actor: actor} = _context ->
    join = %{user_id: actor.id, role: :owner}
    changeset |> Ash.Changeset.manage_relationship(:users_join_assoc, join, type: :create)
  end
end

26 replies

AEAsh Elixir

•Created by Arjun Bajaj on 2/18/2023 in #support

How do you set an attribute to the join resource when creating?

that works! 🚀

26 replies

AEAsh Elixir

•Created by Arjun Bajaj on 2/18/2023 in #support

How do you set an attribute to the join resource when creating?

Input invalid: relationship user is required.

26 replies

AEAsh Elixir

•Created by Arjun Bajaj on 2/18/2023 in #support

How do you set an attribute to the join resource when creating?

That doesn't work either

26 replies

AEAsh Elixir

•Created by Arjun Bajaj on 2/18/2023 in #support

How do you set an attribute to the join resource when creating?

With :append_and_remove it gives an error record with role: :owner | user_id: "EF6DF726A6" not found. However, with :create instead, it gives this error: Input invalid: relationship user is required. I'm guessing this is complaining that the user on the join resource is not provided through here.

26 replies

AEAsh Elixir

•Created by Arjun Bajaj on 2/18/2023 in #support

How do you set an attribute to the join resource when creating?

I tried with users_join_assoc too, but then it sets that to an empty list.

26 replies

AEAsh Elixir

•Created by Arjun Bajaj on 2/18/2023 in #support

How do you set an attribute to the join resource when creating?

No such relationship users_join_relationship for resource Org

26 replies

AEAsh Elixir

•Created by Arjun Bajaj on 2/16/2023 in #support

Differences between ETS and Postgres

Thanks for all your help again!

17 replies

AEAsh Elixir

•Created by Arjun Bajaj on 2/16/2023 in #support

Differences between ETS and Postgres

That's another interesting thing I found about Ash. PlanetScale doesn't support foreign key constraints and has other limitations as they say it would not be possible to build their scalable architecture otherwise. However, I would be wary of not using FKs in production simply because I would be afraid of making an error in my code. But using Ash, since it abstracts away the data layer almost completely, I think a combination of the two would work surprisingly well for many applications.

17 replies

AEAsh Elixir

•Created by Arjun Bajaj on 2/16/2023 in #support

Differences between ETS and Postgres

That's a great idea, I can maybe try that as an experiment after a few weeks or something. I don't understand nearly enough of Ash to attempt it right now though. Like I haven't even ventured into aggregates and a bunch of other features! I'll keep you updated if I try it out.

17 replies

AEAsh Elixir

•Created by Arjun Bajaj on 2/16/2023 in #support

Differences between ETS and Postgres

As an aside, after watching your video on LiveView Mastery where you implement the Twitter clone, and listening to the Thinking Elixir, I was impressed by how Ash does queries in the most performant way possible. So I cloned the ash_postgres repo to see how big it is, and well, tokei shows there are almost 11k lines of code in the lib folder! My thinking to create a data layer for let's say PlanetScale was, we could clone it, make the necessary changes to connect it to MySQL, and then figure out all the code changes required until the tests pass. But if the ash_sql abstraction is possible, I'm sure that's a better route.

17 replies

AEAsh Elixir

•Created by Arjun Bajaj on 2/16/2023 in #support

Differences between ETS and Postgres

that's fair. since its SQL I cannot expect it to work in ETS. So apart from that, Ash should most abstract away everything else.

17 replies

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