91 lines
2.7 KiB
Elixir
91 lines
2.7 KiB
Elixir
defmodule Pleroma.Repo.Migrations.MigrateFollowingRelationships do
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use Ecto.Migration
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def change do
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execute(import_following_from_users(), "")
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execute(import_following_from_activities(), restore_following_column())
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end
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defp import_following_from_users do
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"""
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INSERT INTO following_relationships (follower_id, following_id, state, inserted_at, updated_at)
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SELECT
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relations.follower_id,
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following.id,
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'accept',
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now(),
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now()
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FROM (
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SELECT
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users.id AS follower_id,
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unnest(users.following) AS following_ap_id
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FROM
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users
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WHERE
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users.following != '{}'
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AND users.local = false OR users.local = true AND users.email IS NOT NULL -- Exclude `internal/fetch` and `relay`
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) AS relations
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JOIN users AS "following" ON "following".follower_address = relations.following_ap_id
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WHERE relations.follower_id != following.id
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ON CONFLICT DO NOTHING
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"""
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end
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defp import_following_from_activities do
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"""
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INSERT INTO
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following_relationships (
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follower_id,
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following_id,
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state,
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inserted_at,
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updated_at
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)
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SELECT
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followers.id,
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following.id,
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activities.data ->> 'state',
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(activities.data ->> 'published') :: timestamp,
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now()
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FROM
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activities
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JOIN users AS followers ON (activities.actor = followers.ap_id)
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JOIN users AS following ON (activities.data ->> 'object' = following.ap_id)
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WHERE
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activities.data ->> 'type' = 'Follow'
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AND activities.data ->> 'state' IN ('accept', 'pending', 'reject')
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AND NOT (followers.info ? 'deactivated' AND followers.info -> 'deactivated' @> 'true')
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ORDER BY activities.updated_at DESC
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ON CONFLICT DO NOTHING
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"""
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end
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defp restore_following_column do
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"""
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UPDATE
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users
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SET
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following = following_query.following_array,
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updated_at = now()
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FROM (
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SELECT
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follwer.id AS follower_id,
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CASE follwer.local
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WHEN TRUE THEN
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array_prepend(follwer.follower_address, array_agg(following.follower_address))
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ELSE
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array_agg(following.follower_address)
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END AS following_array
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FROM
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following_relationships
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JOIN users AS follwer ON follwer.id = following_relationships.follower_id
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JOIN users AS FOLLOWING ON following.id = following_relationships.following_id
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GROUP BY
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follwer.id) AS following_query
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WHERE
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following_query.follower_id = users.id
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"""
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end
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end
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