Ash Framework•5mo ago

Tips to speed up compile times?

As my resources have grown, my compile times have gotten irritatingly long. Any tips for improving them?

Solution:

```elixir defmodule Foo do use Ash.Resource.Change def change(changeset, opts, context) do...

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11 Replies

ZachDaniel•5mo ago

fewer inline function changes can help You can also try using Spark.Dsl.Fragment to split up large resources

⿻ eileenOP•5mo ago

Will give it a try 🫡 Are fragments supposed to help with compile times or is that more just for code organization?

ZachDaniel•5mo ago

Was originally designed for code organization but i think they may help w/ compile times unverified 😄

⿻ eileenOP•5mo ago

What is the syntax for using a module instead of an inline function in an after_transaction hook? I have my change module created with a batch_change callback defined, but I can't figure out how to use it in place of an inline function

ZachDaniel•5mo ago

I don't think you need the batch_change

Solution

ZachDaniel•5mo ago

defmodule Foo do
  use Ash.Resource.Change

  def change(changeset, opts, context) do
    Ash.Changeset.after_action(changest, fn changeset, result ->
      {:ok, result}
    end
  end
end

defmodule Foo do
  use Ash.Resource.Change

  def change(changeset, opts, context) do
    Ash.Changeset.after_action(changest, fn changeset, result ->
      {:ok, result}
    end
  end
end

⿻ eileenOP•5mo ago

Sorry I'm still not getting this ... What does this look like in my resource action then?

change after_action(&AfterCompleted.change/3)
change after_action(AfterCompleted)

change after_action(&AfterCompleted.change/3)
change after_action(AfterCompleted)

These ^^^ don't work The first one returns a changeset when it's supposed to reutrn {:ok, result}. The second one is a module and it needs a function Bah, sorry - have a good 4th!

ZachDaniel•5mo ago

Did you figure it out? Its just change AfterCompleted w/ a module that implements the Ash.Resource.Change behaviour

⿻ eileenOP•5mo ago

OHHHHH Now I get it 😮 I do have a version working but it sucks Basicaly just an external module with a change/3 function that takes goes like this:

change after_transaction(&AfterCompleted.change/3)

change after_transaction(&AfterCompleted.change/3)

But now I'm seeing we can compose all our changes in one Change module. just clicked

ZachDaniel•5mo ago

Ah, yeah so you can do it that way but generally speaking the "purest form" of it is change SomeModule that module can then implement various callbacks, add various hooks etc.

⿻ eileenOP•5mo ago

I am levelling up on this independence day This "pure" form also seems to be the only one that actually impacts compilation times. Haven't investigated fragments yet but when this Change module compiles it does not trigger the calling resource to compile

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Tips to speed up compile times?

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