68 lines
2 KiB
Elixir
68 lines
2 KiB
Elixir
defmodule Pleroma.Repo.Migrations.DataMigrationPopulateUserRelationships do
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use Ecto.Migration
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alias Ecto.Adapters.SQL
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alias Pleroma.Repo
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require Logger
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def up do
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Enum.each(
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[blocks: 1, mutes: 2, muted_reblogs: 3, muted_notifications: 4, subscribers: 5],
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fn {field, relationship_type_code} ->
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migrate(field, relationship_type_code)
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if field == :subscribers do
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drop_if_exists(index(:users, [:subscribers]))
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end
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end
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)
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end
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def down, do: :noop
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defp migrate(field, relationship_type_code) do
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Logger.info("Processing users.#{field}...")
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{:ok, %{rows: field_rows}} =
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SQL.query(Repo, "SELECT id, #{field} FROM users WHERE #{field} != '{}'")
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target_ap_ids =
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Enum.flat_map(
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field_rows,
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fn [_, ap_ids] -> ap_ids end
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)
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|> Enum.uniq()
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# Selecting ids of all targets at once in order to reduce the number of SELECT queries
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{:ok, %{rows: target_ap_id_id}} =
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SQL.query(Repo, "SELECT ap_id, id FROM users WHERE ap_id = ANY($1)", [target_ap_ids])
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target_id_by_ap_id = Enum.into(target_ap_id_id, %{}, fn [k, v] -> {k, v} end)
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Enum.each(
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field_rows,
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fn [source_id, target_ap_ids] ->
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source_uuid = Ecto.UUID.cast!(source_id)
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for target_ap_id <- target_ap_ids do
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target_id = target_id_by_ap_id[target_ap_id]
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with {:ok, target_uuid} <- target_id && Ecto.UUID.cast(target_id) do
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execute("""
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INSERT INTO user_relationships(
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source_id, target_id, relationship_type, inserted_at
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)
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VALUES(
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'#{source_uuid}'::uuid, '#{target_uuid}'::uuid, #{relationship_type_code}, now()
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)
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ON CONFLICT (source_id, relationship_type, target_id) DO NOTHING
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""")
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else
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_ -> Logger.warn("Unresolved #{field} reference: (#{source_uuid}, #{target_id})")
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end
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end
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end
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)
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end
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end
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