Move following relationships to a separate table Closes #1233 See merge request pleroma/pleroma!1814stable
commit
2480200759
@ -0,0 +1,110 @@
|
||||
# Pleroma: A lightweight social networking server
|
||||
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
|
||||
# SPDX-License-Identifier: AGPL-3.0-only
|
||||
|
||||
defmodule Pleroma.FollowingRelationship do
|
||||
use Ecto.Schema
|
||||
|
||||
import Ecto.Changeset
|
||||
import Ecto.Query
|
||||
|
||||
alias FlakeId.Ecto.CompatType
|
||||
alias Pleroma.Repo
|
||||
alias Pleroma.User
|
||||
|
||||
schema "following_relationships" do
|
||||
field(:state, :string, default: "accept")
|
||||
|
||||
belongs_to(:follower, User, type: CompatType)
|
||||
belongs_to(:following, User, type: CompatType)
|
||||
|
||||
timestamps()
|
||||
end
|
||||
|
||||
def changeset(%__MODULE__{} = following_relationship, attrs) do
|
||||
following_relationship
|
||||
|> cast(attrs, [:state])
|
||||
|> put_assoc(:follower, attrs.follower)
|
||||
|> put_assoc(:following, attrs.following)
|
||||
|> validate_required([:state, :follower, :following])
|
||||
end
|
||||
|
||||
def get(%User{} = follower, %User{} = following) do
|
||||
__MODULE__
|
||||
|> where(follower_id: ^follower.id, following_id: ^following.id)
|
||||
|> Repo.one()
|
||||
end
|
||||
|
||||
def update(follower, following, "reject"), do: unfollow(follower, following)
|
||||
|
||||
def update(%User{} = follower, %User{} = following, state) do
|
||||
case get(follower, following) do
|
||||
nil ->
|
||||
follow(follower, following, state)
|
||||
|
||||
following_relationship ->
|
||||
following_relationship
|
||||
|> cast(%{state: state}, [:state])
|
||||
|> validate_required([:state])
|
||||
|> Repo.update()
|
||||
end
|
||||
end
|
||||
|
||||
def follow(%User{} = follower, %User{} = following, state \\ "accept") do
|
||||
%__MODULE__{}
|
||||
|> changeset(%{follower: follower, following: following, state: state})
|
||||
|> Repo.insert(on_conflict: :nothing)
|
||||
end
|
||||
|
||||
def unfollow(%User{} = follower, %User{} = following) do
|
||||
case get(follower, following) do
|
||||
nil -> {:ok, nil}
|
||||
%__MODULE__{} = following_relationship -> Repo.delete(following_relationship)
|
||||
end
|
||||
end
|
||||
|
||||
def follower_count(%User{} = user) do
|
||||
%{followers: user, deactivated: false}
|
||||
|> User.Query.build()
|
||||
|> Repo.aggregate(:count, :id)
|
||||
end
|
||||
|
||||
def following_count(%User{id: nil}), do: 0
|
||||
|
||||
def following_count(%User{} = user) do
|
||||
%{friends: user, deactivated: false}
|
||||
|> User.Query.build()
|
||||
|> Repo.aggregate(:count, :id)
|
||||
end
|
||||
|
||||
def get_follow_requests(%User{id: id}) do
|
||||
__MODULE__
|
||||
|> join(:inner, [r], f in assoc(r, :follower))
|
||||
|> where([r], r.state == "pending")
|
||||
|> where([r], r.following_id == ^id)
|
||||
|> select([r, f], f)
|
||||
|> Repo.all()
|
||||
end
|
||||
|
||||
def following?(%User{id: follower_id}, %User{id: followed_id}) do
|
||||
__MODULE__
|
||||
|> where(follower_id: ^follower_id, following_id: ^followed_id, state: "accept")
|
||||
|> Repo.exists?()
|
||||
end
|
||||
|
||||
def following(%User{} = user) do
|
||||
following =
|
||||
__MODULE__
|
||||
|> join(:inner, [r], u in User, on: r.following_id == u.id)
|
||||
|> where([r], r.follower_id == ^user.id)
|
||||
|> where([r], r.state == "accept")
|
||||
|> select([r, u], u.follower_address)
|
||||
|> Repo.all()
|
||||
|
||||
if not user.local or user.nickname in [nil, "internal.fetch"] do
|
||||
following
|
||||
else
|
||||
[user.follower_address | following]
|
||||
end
|
||||
end
|
||||
end
|
@ -0,0 +1,149 @@
|
||||
defmodule Pleroma.Repo.Migrations.CreateFollowingRelationships do
|
||||
use Ecto.Migration
|
||||
|
||||
def change do
|
||||
create_if_not_exists table(:following_relationships) do
|
||||
add(:follower_id, references(:users, type: :uuid, on_delete: :delete_all), null: false)
|
||||
add(:following_id, references(:users, type: :uuid, on_delete: :delete_all), null: false)
|
||||
add(:state, :string, null: false)
|
||||
|
||||
timestamps()
|
||||
end
|
||||
|
||||
create_if_not_exists(index(:following_relationships, :follower_id))
|
||||
create_if_not_exists(unique_index(:following_relationships, [:follower_id, :following_id]))
|
||||
|
||||
execute(update_thread_visibility(), restore_thread_visibility())
|
||||
end
|
||||
|
||||
# The only difference between the original version: `actor_user` replaced with `actor_user_following`
|
||||
def update_thread_visibility do
|
||||
"""
|
||||
CREATE OR REPLACE FUNCTION thread_visibility(actor varchar, activity_id varchar) RETURNS boolean AS $$
|
||||
DECLARE
|
||||
public varchar := 'https://www.w3.org/ns/activitystreams#Public';
|
||||
child objects%ROWTYPE;
|
||||
activity activities%ROWTYPE;
|
||||
author_fa varchar;
|
||||
valid_recipients varchar[];
|
||||
actor_user_following varchar[];
|
||||
BEGIN
|
||||
--- Fetch actor following
|
||||
SELECT array_agg(following.follower_address) INTO actor_user_following FROM following_relationships
|
||||
JOIN users ON users.id = following_relationships.follower_id
|
||||
JOIN users AS following ON following.id = following_relationships.following_id
|
||||
WHERE users.ap_id = actor;
|
||||
|
||||
--- Fetch our initial activity.
|
||||
SELECT * INTO activity FROM activities WHERE activities.data->>'id' = activity_id;
|
||||
|
||||
LOOP
|
||||
--- Ensure that we have an activity before continuing.
|
||||
--- If we don't, the thread is not satisfiable.
|
||||
IF activity IS NULL THEN
|
||||
RETURN false;
|
||||
END IF;
|
||||
|
||||
--- We only care about Create activities.
|
||||
IF activity.data->>'type' != 'Create' THEN
|
||||
RETURN true;
|
||||
END IF;
|
||||
|
||||
--- Normalize the child object into child.
|
||||
SELECT * INTO child FROM objects
|
||||
INNER JOIN activities ON COALESCE(activities.data->'object'->>'id', activities.data->>'object') = objects.data->>'id'
|
||||
WHERE COALESCE(activity.data->'object'->>'id', activity.data->>'object') = objects.data->>'id';
|
||||
|
||||
--- Fetch the author's AS2 following collection.
|
||||
SELECT COALESCE(users.follower_address, '') INTO author_fa FROM users WHERE users.ap_id = activity.actor;
|
||||
|
||||
--- Prepare valid recipients array.
|
||||
valid_recipients := ARRAY[actor, public];
|
||||
IF ARRAY[author_fa] && actor_user_following THEN
|
||||
valid_recipients := valid_recipients || author_fa;
|
||||
END IF;
|
||||
|
||||
--- Check visibility.
|
||||
IF NOT valid_recipients && activity.recipients THEN
|
||||
--- activity not visible, break out of the loop
|
||||
RETURN false;
|
||||
END IF;
|
||||
|
||||
--- If there's a parent, load it and do this all over again.
|
||||
IF (child.data->'inReplyTo' IS NOT NULL) AND (child.data->'inReplyTo' != 'null'::jsonb) THEN
|
||||
SELECT * INTO activity FROM activities
|
||||
INNER JOIN objects ON COALESCE(activities.data->'object'->>'id', activities.data->>'object') = objects.data->>'id'
|
||||
WHERE child.data->>'inReplyTo' = objects.data->>'id';
|
||||
ELSE
|
||||
RETURN true;
|
||||
END IF;
|
||||
END LOOP;
|
||||
END;
|
||||
$$ LANGUAGE plpgsql IMMUTABLE;
|
||||
"""
|
||||
end
|
||||
|
||||
# priv/repo/migrations/20190515222404_add_thread_visibility_function.exs
|
||||
def restore_thread_visibility do
|
||||
"""
|
||||
CREATE OR REPLACE FUNCTION thread_visibility(actor varchar, activity_id varchar) RETURNS boolean AS $$
|
||||
DECLARE
|
||||
public varchar := 'https://www.w3.org/ns/activitystreams#Public';
|
||||
child objects%ROWTYPE;
|
||||
activity activities%ROWTYPE;
|
||||
actor_user users%ROWTYPE;
|
||||
author_fa varchar;
|
||||
valid_recipients varchar[];
|
||||
BEGIN
|
||||
--- Fetch our actor.
|
||||
SELECT * INTO actor_user FROM users WHERE users.ap_id = actor;
|
||||
|
||||
--- Fetch our initial activity.
|
||||
SELECT * INTO activity FROM activities WHERE activities.data->>'id' = activity_id;
|
||||
|
||||
LOOP
|
||||
--- Ensure that we have an activity before continuing.
|
||||
--- If we don't, the thread is not satisfiable.
|
||||
IF activity IS NULL THEN
|
||||
RETURN false;
|
||||
END IF;
|
||||
|
||||
--- We only care about Create activities.
|
||||
IF activity.data->>'type' != 'Create' THEN
|
||||
RETURN true;
|
||||
END IF;
|
||||
|
||||
--- Normalize the child object into child.
|
||||
SELECT * INTO child FROM objects
|
||||
INNER JOIN activities ON COALESCE(activities.data->'object'->>'id', activities.data->>'object') = objects.data->>'id'
|
||||
WHERE COALESCE(activity.data->'object'->>'id', activity.data->>'object') = objects.data->>'id';
|
||||
|
||||
--- Fetch the author's AS2 following collection.
|
||||
SELECT COALESCE(users.follower_address, '') INTO author_fa FROM users WHERE users.ap_id = activity.actor;
|
||||
|
||||
--- Prepare valid recipients array.
|
||||
valid_recipients := ARRAY[actor, public];
|
||||
IF ARRAY[author_fa] && actor_user.following THEN
|
||||
valid_recipients := valid_recipients || author_fa;
|
||||
END IF;
|
||||
|
||||
--- Check visibility.
|
||||
IF NOT valid_recipients && activity.recipients THEN
|
||||
--- activity not visible, break out of the loop
|
||||
RETURN false;
|
||||
END IF;
|
||||
|
||||
--- If there's a parent, load it and do this all over again.
|
||||
IF (child.data->'inReplyTo' IS NOT NULL) AND (child.data->'inReplyTo' != 'null'::jsonb) THEN
|
||||
SELECT * INTO activity FROM activities
|
||||
INNER JOIN objects ON COALESCE(activities.data->'object'->>'id', activities.data->>'object') = objects.data->>'id'
|
||||
WHERE child.data->>'inReplyTo' = objects.data->>'id';
|
||||
ELSE
|
||||
RETURN true;
|
||||
END IF;
|
||||
END LOOP;
|
||||
END;
|
||||
$$ LANGUAGE plpgsql IMMUTABLE;
|
||||
"""
|
||||
end
|
||||
end
|
@ -0,0 +1,89 @@
|
||||
defmodule Pleroma.Repo.Migrations.MigrateFollowingRelationships do
|
||||
use Ecto.Migration
|
||||
|
||||
def change do
|
||||
execute(import_following_from_users(), "")
|
||||
execute(import_following_from_activities(), restore_following_column())
|
||||
end
|
||||
|
||||
defp import_following_from_users do
|
||||
"""
|
||||
INSERT INTO following_relationships (follower_id, following_id, state, inserted_at, updated_at)
|
||||
SELECT
|
||||
relations.follower_id,
|
||||
following.id,
|
||||
'accept',
|
||||
now(),
|
||||
now()
|
||||
FROM (
|
||||
SELECT
|
||||
users.id AS follower_id,
|
||||
unnest(users.following) AS following_ap_id
|
||||
FROM
|
||||
users
|
||||
WHERE
|
||||
users.following != '{}'
|
||||
AND users.local = false OR users.local = true AND users.email IS NOT NULL -- Exclude `internal/fetch` and `relay`
|
||||
) AS relations
|
||||
JOIN users AS "following" ON "following".follower_address = relations.following_ap_id
|
||||
|
||||
WHERE relations.follower_id != following.id
|
||||
ON CONFLICT DO NOTHING
|
||||
"""
|
||||
end
|
||||
|
||||
defp import_following_from_activities do
|
||||
"""
|
||||
INSERT INTO
|
||||
following_relationships (
|
||||
follower_id,
|
||||
following_id,
|
||||
state,
|
||||
inserted_at,
|
||||
updated_at
|
||||
)
|
||||
SELECT
|
||||
followers.id,
|
||||
following.id,
|
||||
activities.data ->> 'state',
|
||||
(activities.data ->> 'published') :: timestamp,
|
||||
now()
|
||||
FROM
|
||||
activities
|
||||
JOIN users AS followers ON (activities.actor = followers.ap_id)
|
||||
JOIN users AS following ON (activities.data ->> 'object' = following.ap_id)
|
||||
WHERE
|
||||
activities.data ->> 'type' = 'Follow'
|
||||
AND activities.data ->> 'state' IN ('accept', 'pending', 'reject')
|
||||
ORDER BY activities.updated_at DESC
|
||||
ON CONFLICT DO NOTHING
|
||||
"""
|
||||
end
|
||||
|
||||
defp restore_following_column do
|
||||
"""
|
||||
UPDATE
|
||||
users
|
||||
SET
|
||||
following = following_query.following_array,
|
||||
updated_at = now()
|
||||
FROM (
|
||||
SELECT
|
||||
follower.id AS follower_id,
|
||||
CASE follower.local
|
||||
WHEN TRUE THEN
|
||||
array_prepend(follower.follower_address, array_agg(following.follower_address))
|
||||
ELSE
|
||||
array_agg(following.follower_address)
|
||||
END AS following_array
|
||||
FROM
|
||||
following_relationships
|
||||
JOIN users AS follower ON follower.id = following_relationships.follower_id
|
||||
JOIN users AS following ON following.id = following_relationships.following_id
|
||||
GROUP BY
|
||||
follower.id) AS following_query
|
||||
WHERE
|
||||
following_query.follower_id = users.id
|
||||
"""
|
||||
end
|
||||
end
|
@ -0,0 +1,16 @@
|
||||
defmodule Pleroma.Repo.Migrations.DropUsersFollowing do
|
||||
use Ecto.Migration
|
||||
|
||||
# had to disable these to be able to restore `following` index concurrently
|
||||
# https://hexdocs.pm/ecto_sql/Ecto.Migration.html#index/3-adding-dropping-indexes-concurrently
|
||||
@disable_ddl_transaction true
|
||||
@disable_migration_lock true
|
||||
|
||||
def change do
|
||||
drop(index(:users, [:following], concurrently: true, using: :gin))
|
||||
|
||||
alter table(:users) do
|
||||
remove(:following, {:array, :string}, default: [])
|
||||
end
|
||||
end
|
||||
end
|
Loading…
Reference in new issue