39 lines
944 B
Elixir
39 lines
944 B
Elixir
defmodule Pleroma.Repo.Migrations.RemoveUnreadConversationCountFromUser do
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use Ecto.Migration
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import Ecto.Query
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alias Pleroma.Repo
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def up do
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alter table(:users) do
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remove_if_exists(:unread_conversation_count, :integer)
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end
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end
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def down do
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alter table(:users) do
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add_if_not_exists(:unread_conversation_count, :integer, default: 0)
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end
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flush()
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recalc_unread_conversation_count()
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end
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defp recalc_unread_conversation_count do
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participations_subquery =
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from(
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p in "conversation_participations",
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where: p.read == false,
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group_by: p.user_id,
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select: %{user_id: p.user_id, unread_conversation_count: count(p.id)}
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)
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from(
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u in "users",
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join: p in subquery(participations_subquery),
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on: p.user_id == u.id,
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update: [set: [unread_conversation_count: p.unread_conversation_count]]
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)
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|> Repo.update_all([])
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end
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end
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