Add migration for counter_cache table update
This commit is contained in:
Roman Chvanikov
parent
769d95644d
commit
0c2b09a9ba
|
|
@ -0,0 +1,144 @@
|
|||
defmodule Pleroma.Repo.Migrations.UpdateCounterCacheTable do
|
||||
use Ecto.Migration
|
||||
|
||||
@function_name "update_status_visibility_counter_cache"
|
||||
@trigger_name "status_visibility_counter_cache_trigger"
|
||||
|
||||
def up do
|
||||
execute("drop trigger if exists #{@trigger_name} on activities")
|
||||
execute("drop function if exists #{@function_name}()")
|
||||
drop_if_exists(unique_index(:counter_cache, [:name]))
|
||||
drop_if_exists(table(:counter_cache))
|
||||
|
||||
create_if_not_exists table(:counter_cache) do
|
||||
add(:instance, :string, null: false)
|
||||
add(:direct, :bigint, null: false, default: 0)
|
||||
add(:private, :bigint, null: false, default: 0)
|
||||
add(:unlisted, :bigint, null: false, default: 0)
|
||||
add(:public, :bigint, null: false, default: 0)
|
||||
end
|
||||
|
||||
create_if_not_exists(unique_index(:counter_cache, [:instance]))
|
||||
|
||||
"""
|
||||
CREATE OR REPLACE FUNCTION #{@function_name}()
|
||||
RETURNS TRIGGER AS
|
||||
$$
|
||||
DECLARE
|
||||
token_id smallint;
|
||||
hostname character varying(255);
|
||||
visibility_new character varying(64);
|
||||
visibility_old character varying(64);
|
||||
actor character varying(255);
|
||||
BEGIN
|
||||
SELECT "tokid" INTO "token_id" FROM ts_token_type('default') WHERE "alias" = 'host';
|
||||
IF TG_OP = 'DELETE' THEN
|
||||
actor := OLD.actor;
|
||||
ELSE
|
||||
actor := NEW.actor;
|
||||
END IF;
|
||||
SELECT "token" INTO "hostname" FROM ts_parse('default', actor) WHERE "tokid" = token_id;
|
||||
IF hostname IS NULL THEN
|
||||
hostname := split_part(actor, '/', 3);
|
||||
END IF;
|
||||
IF TG_OP = 'INSERT' THEN
|
||||
visibility_new := activity_visibility(NEW.actor, NEW.recipients, NEW.data);
|
||||
IF NEW.data->>'type' = 'Create' THEN
|
||||
EXECUTE format('INSERT INTO "counter_cache" ("instance", %1$I) VALUES ($1, 1)
|
||||
ON CONFLICT ("instance") DO
|
||||
UPDATE SET %1$I = "counter_cache".%1$I + 1', visibility_new)
|
||||
USING hostname;
|
||||
END IF;
|
||||
RETURN NEW;
|
||||
ELSIF TG_OP = 'UPDATE' THEN
|
||||
visibility_new := activity_visibility(NEW.actor, NEW.recipients, NEW.data);
|
||||
visibility_old := activity_visibility(OLD.actor, OLD.recipients, OLD.data);
|
||||
IF (NEW.data->>'type' = 'Create') and (OLD.data->>'type' = 'Create') and visibility_new != visibility_old THEN
|
||||
EXECUTE format('UPDATE "counter_cache" SET
|
||||
%1$I = greatest("counter_cache".%1$I - 1, 0),
|
||||
%2$I = "counter_cache".%2$I + 1
|
||||
WHERE "instance" = $1', visibility_old, visibility_new)
|
||||
USING hostname;
|
||||
END IF;
|
||||
RETURN NEW;
|
||||
ELSIF TG_OP = 'DELETE' THEN
|
||||
IF OLD.data->>'type' = 'Create' THEN
|
||||
visibility_old := activity_visibility(OLD.actor, OLD.recipients, OLD.data);
|
||||
EXECUTE format('UPDATE "counter_cache" SET
|
||||
%1$I = greatest("counter_cache".%1$I - 1, 0)
|
||||
WHERE "instance" = $1', visibility_old)
|
||||
USING hostname;
|
||||
END IF;
|
||||
RETURN OLD;
|
||||
END IF;
|
||||
END;
|
||||
$$
|
||||
LANGUAGE 'plpgsql';
|
||||
"""
|
||||
|> execute()
|
||||
|
||||
execute("DROP TRIGGER IF EXISTS #{@trigger_name} ON activities")
|
||||
|
||||
"""
|
||||
CREATE TRIGGER #{@trigger_name}
|
||||
BEFORE
|
||||
INSERT
|
||||
OR UPDATE of recipients, data
|
||||
OR DELETE
|
||||
ON activities
|
||||
FOR EACH ROW
|
||||
EXECUTE PROCEDURE #{@function_name}();
|
||||
"""
|
||||
|> execute()
|
||||
end
|
||||
|
||||
def down do
|
||||
execute("DROP TRIGGER IF EXISTS #{@trigger_name} ON activities")
|
||||
execute("DROP FUNCTION IF EXISTS #{@function_name}()")
|
||||
drop_if_exists(unique_index(:counter_cache, [:instance]))
|
||||
drop_if_exists(table(:counter_cache))
|
||||
|
||||
create_if_not_exists table(:counter_cache) do
|
||||
add(:name, :string, null: false)
|
||||
add(:count, :bigint, null: false, default: 0)
|
||||
end
|
||||
|
||||
create_if_not_exists(unique_index(:counter_cache, [:name]))
|
||||
|
||||
"""
|
||||
CREATE OR REPLACE FUNCTION #{@function_name}()
|
||||
RETURNS TRIGGER AS
|
||||
$$
|
||||
DECLARE
|
||||
BEGIN
|
||||
IF TG_OP = 'INSERT' THEN
|
||||
IF NEW.data->>'type' = 'Create' THEN
|
||||
EXECUTE 'INSERT INTO counter_cache (name, count) VALUES (''status_visibility_' || activity_visibility(NEW.actor, NEW.recipients, NEW.data) || ''', 1) ON CONFLICT (name) DO UPDATE SET count = counter_cache.count + 1';
|
||||
END IF;
|
||||
RETURN NEW;
|
||||
ELSIF TG_OP = 'UPDATE' THEN
|
||||
IF (NEW.data->>'type' = 'Create') and (OLD.data->>'type' = 'Create') and activity_visibility(NEW.actor, NEW.recipients, NEW.data) != activity_visibility(OLD.actor, OLD.recipients, OLD.data) THEN
|
||||
EXECUTE 'INSERT INTO counter_cache (name, count) VALUES (''status_visibility_' || activity_visibility(NEW.actor, NEW.recipients, NEW.data) || ''', 1) ON CONFLICT (name) DO UPDATE SET count = counter_cache.count + 1';
|
||||
EXECUTE 'update counter_cache SET count = counter_cache.count - 1 where count > 0 and name = ''status_visibility_' || activity_visibility(OLD.actor, OLD.recipients, OLD.data) || ''';';
|
||||
END IF;
|
||||
RETURN NEW;
|
||||
ELSIF TG_OP = 'DELETE' THEN
|
||||
IF OLD.data->>'type' = 'Create' THEN
|
||||
EXECUTE 'update counter_cache SET count = counter_cache.count - 1 where count > 0 and name = ''status_visibility_' || activity_visibility(OLD.actor, OLD.recipients, OLD.data) || ''';';
|
||||
END IF;
|
||||
RETURN OLD;
|
||||
END IF;
|
||||
END;
|
||||
$$
|
||||
LANGUAGE 'plpgsql';
|
||||
"""
|
||||
|> execute()
|
||||
|
||||
"""
|
||||
CREATE TRIGGER #{@trigger_name} BEFORE INSERT OR UPDATE of recipients, data OR DELETE ON activities
|
||||
FOR EACH ROW
|
||||
EXECUTE PROCEDURE #{@function_name}();
|
||||
"""
|
||||
|> execute()
|
||||
end
|
||||
end
|
||||
Loading…
Reference in New Issue