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|
defmodule Pleroma.Repo.Migrations.AddVisibilityFunction do
use Ecto.Migration
@disable_ddl_transaction true
def up do
definition = """
create or replace function activity_visibility(actor varchar, recipients varchar[], data jsonb) returns varchar as $$
DECLARE
fa varchar;
public varchar := 'https://www.w3.org/ns/activitystreams#Public';
BEGIN
SELECT COALESCE(users.follower_address, '') into fa from users where users.ap_id = actor;
IF data->'to' ? public THEN
RETURN 'public';
ELSIF data->'cc' ? public THEN
RETURN 'unlisted';
ELSIF ARRAY[fa] && recipients THEN
RETURN 'private';
ELSIF not(ARRAY[fa, public] && recipients) THEN
RETURN 'direct';
ELSE
RETURN 'unknown';
END IF;
END;
$$ LANGUAGE plpgsql IMMUTABLE;
"""
execute(definition)
create(
index(:activities, ["activity_visibility(actor, recipients, data)"],
name: :activities_visibility_index,
concurrently: true
)
)
end
def down do
drop_if_exists(
index(:activities, ["activity_visibility(actor, recipients, data)"],
name: :activities_visibility_index
)
)
execute(
"drop function if exists activity_visibility(actor varchar, recipients varchar[], data jsonb)"
)
end
end
|
