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Projectors refactor #1624

Merged
merged 11 commits into from
Jul 13, 2023
Merged

Projectors refactor #1624

merged 11 commits into from
Jul 13, 2023

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CDimonaco
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Description

This pr refactor the usage of projectors, using the changesets with the current entity as the base entity for the changes.

Removes the queries from after_update callbacks, only the necessary association preloads for broadcasts are present.

How was this tested?

Automated tests

@CDimonaco CDimonaco added the elixir Pull requests that update Elixir code label Jul 12, 2023
@CDimonaco CDimonaco requested review from arbulu89 and jamie-suse July 12, 2023 14:13
@CDimonaco CDimonaco self-assigned this Jul 12, 2023
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@nelsonkopliku nelsonkopliku left a comment

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LGTM

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@arbulu89 arbulu89 left a comment

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@CDimonaco I still see some Repo.queries in the after_updates that shouldn't be there:

  • Cluster projection, ClusterDeregistered event. This is the unique real change i ask you XD
  • Host projection, HostAddedToCluster, you could add the returning: true value to the insert, so you get the data from the database, and you don't need to query in the after_update. Anyway insert first query later is accepted as a good solution as well.
    Ref

@@ -63,8 +63,10 @@ defmodule Trento.ClusterProjector do
deregistered_at: deregistered_at
},
fn multi ->
cluster = Repo.get!(ClusterReadModel, cluster_id)
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Just as a comment, in other project functions, we have this pipelined:

changeset =
    ClusterReadModel
    |> Repo.get!(cluster_id)
    |> ClusterReadModel.changeset(%{
         deregistered_at: deregistered_at
    })

Just in case if you prefer it 😝

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You triggered my ocd 👁️

Everything refactored to this style

@arbulu89
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@CDimonaco Besides the review, can you make me a small favor? XD
Could you change the line 286 in HostProjector and update Trento.HostReadModel by simply HostReadModel?

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@arbulu89 arbulu89 left a comment

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💯

@CDimonaco
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Everything done!

@CDimonaco CDimonaco requested a review from arbulu89 July 13, 2023 12:19
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💯 🥇

@CDimonaco CDimonaco merged commit e59a5bf into main Jul 13, 2023
@CDimonaco CDimonaco deleted the projector_refactor branch July 13, 2023 12:48
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3 participants