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gordoneliel

•Created by gordoneliel on 9/22/2023 in #support

Preload relationship during action

yeah what would be nice would be something similar to load, say preload([:relationships]) and would load the relationships if not already loaded. For context, I typically publish integration events after actions using Oban as an outbox, and serialize the current state of the resource + some relationships into an Oban job to be sent over a message bus, so I run into this sorta stuff all the time

48 replies

•Created by gordoneliel on 9/22/2023 in #support

Preload relationship during action

Ah that makes sense. I guess what im trying to figure out is whats the recommended way to preload stuff to use down the action + changes pipeline. Is it better to have a special change that preloads this? or do you just do it inline where neede?

48 replies

•Created by gordoneliel on 9/22/2023 in #support

Preload relationship during action

Hm, it still seems a bit weird since the after actions are supposed to be after the action? so the load should be before this I was assuming. I tried Api.load, which works in the after action, but its doesnt do any optimization for already loaded relationships it seems. Is it possible to preload in the changeset level before an after action?

48 replies

•Created by gordoneliel on 9/22/2023 in #support

Preload relationship during action

Also my changes after are in an "after action", will it be preloaded by the time im in the after action?

48 replies

•Created by gordoneliel on 9/22/2023 in #support

Preload relationship during action

Im curious how the resource gets loaded when it hits an action? For my use case its from the AshJsonApi. Is it possible to preload at that level?

48 replies

•Created by gordoneliel on 9/22/2023 in #support

Preload relationship during action

I guess im curious why the load happens after and not inline?

48 replies

•Created by gordoneliel on 9/22/2023 in #support

Preload relationship during action

So the change will just do a fetch?

48 replies

•Created by gordoneliel on 9/14/2023 in #support

How To: Return a computed relationship in a read.

ah, you are right on, I didnt define it there

25 replies

•Created by gordoneliel on 9/14/2023 in #support

How To: Return a computed relationship in a read.

same on the relationship field on the attribute level too, id is present, type is null

25 replies

•Created by gordoneliel on 9/14/2023 in #support

How To: Return a computed relationship in a read.

its included, and it returns the correct includes, just the type field is null

25 replies

•Created by gordoneliel on 9/14/2023 in #support

How To: Return a computed relationship in a read.

However, the type field in the includes on AshJsonApi is returning null for some reason, maybe something to do with the has_one?

25 replies

•Created by gordoneliel on 9/14/2023 in #support

How To: Return a computed relationship in a read.

On man thats so beautiful! It works

25 replies

•Created by gordoneliel on 9/14/2023 in #support

How To: Return a computed relationship in a read.

It does load it, but it loads all Comments . What I would like is to join Comment on Post, something like so where comment.post_id == post_id and comment.some_attribute == true, Right now its returning all Comments instead of by a specific filter on the relationship/query

25 replies

•Created by gordoneliel on 9/12/2023 in #support

How to: DateTime validation with compare/2

Thanks, this worked! 🙏

12 replies

•Created by gordoneliel on 9/14/2023 in #support

How To: Return a computed relationship in a read.

So what im thinking is making this into a relationship on Post, so post has_one :top_comment, Comment. What im trying to figure out now is how to hook this up to the Ash.Query engine. I think what im looking for is a way to join into Comments against some attribute, and merge that into the Post

25 replies

•Created by gordoneliel on 9/12/2023 in #support

How to: DateTime validation with compare/2

Doesnt look like fetch_argument_or_attribute exists, should I be using get_argument_or_attribute?

12 replies

•Created by gordoneliel on 9/8/2023 in #support

How To: Atomic update with a where clause

Thanks that works! For posterity, This is my change module updating two values atomically:

  def change(changeset, [next_status: next_status], _context) do
    changeset
    |> Changeset.atomic_update(
      :invoice_status,
      expr(
        cond do
          is_nil(last_invoice_event_ts) ->
            ^next_status

          last_invoice_event_ts < ^arg(:invoice_event_ts) ->
            ^next_status

          true ->
            invoice_status
        end
      )
    )
    |> Changeset.atomic_update(
      :last_invoice_event_ts,
      expr(
        cond do
          is_nil(last_invoice_event_ts) ->
            ^arg(:invoice_event_ts)

          last_invoice_event_ts < ^arg(:invoice_event_ts) ->
            ^arg(:invoice_event_ts)

          true ->
            last_invoice_event_ts
        end
      )
    )
  end

  def change(changeset, [next_status: next_status], _context) do
    changeset
    |> Changeset.atomic_update(
      :invoice_status,
      expr(
        cond do
          is_nil(last_invoice_event_ts) ->
            ^next_status

          last_invoice_event_ts < ^arg(:invoice_event_ts) ->
            ^next_status

          true ->
            invoice_status
        end
      )
    )
    |> Changeset.atomic_update(
      :last_invoice_event_ts,
      expr(
        cond do
          is_nil(last_invoice_event_ts) ->
            ^arg(:invoice_event_ts)

          last_invoice_event_ts < ^arg(:invoice_event_ts) ->
            ^arg(:invoice_event_ts)

          true ->
            last_invoice_event_ts
        end
      )
    )
  end

9 replies

•Created by gordoneliel on 9/8/2023 in #support

How To: Atomic update with a where clause

Something like so:

      change atomic_update(
               :invoice_status,
               expr(
                 cond do
                   # Not sure if you can get another field here
                   is_nil(last_invoice_event_ts) ->
                     ^arg(:invoice_event_ts)

                   last_invoice_event_ts < ^arg(:invoice_event_ts) ->
                     :unpaid

                   true ->
                     invoice_status
                 end
               )
             )

      change atomic_update(
               :last_invoice_event_ts,
               expr(
                 cond do
                   is_nil(last_invoice_event_ts) ->
                     ^arg(:invoice_event_ts)

                   last_invoice_event_ts < ^arg(:invoice_event_ts) ->
                     ^arg(:invoice_event_ts)

                   true ->
                     last_invoice_event_ts
                 end
               )
             )

      change atomic_update(
               :invoice_status,
               expr(
                 cond do
                   # Not sure if you can get another field here
                   is_nil(last_invoice_event_ts) ->
                     ^arg(:invoice_event_ts)

                   last_invoice_event_ts < ^arg(:invoice_event_ts) ->
                     :unpaid

                   true ->
                     invoice_status
                 end
               )
             )

      change atomic_update(
               :last_invoice_event_ts,
               expr(
                 cond do
                   is_nil(last_invoice_event_ts) ->
                     ^arg(:invoice_event_ts)

                   last_invoice_event_ts < ^arg(:invoice_event_ts) ->
                     ^arg(:invoice_event_ts)

                   true ->
                     last_invoice_event_ts
                 end
               )
             )

9 replies

•Created by gordoneliel on 9/8/2023 in #support

How To: Atomic update with a where clause

How would you combine this with another attribute? Like say I want the invoice_status attribute to only update if the atomic last_invoice_event_ts is updated? Can that even work? Do I have to dip into a custom action / change for that?

9 replies

•Created by gordoneliel on 9/8/2023 in #support

How To: Atomic update with a where clause

That works @Zach Daniel You're the best!

9 replies