48 lines
1.2 KiB
Ruby
48 lines
1.2 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
module Gitlab
|
|
module Database
|
|
# This abstract class is used for models which need to exist in multiple de-composed databases.
|
|
class SharedModel < ActiveRecord::Base
|
|
self.abstract_class = true
|
|
|
|
class << self
|
|
def using_connection(connection)
|
|
previous_connection = self.overriding_connection
|
|
|
|
unless previous_connection.nil? || previous_connection.equal?(connection)
|
|
raise 'cannot nest connection overrides for shared models with different connections'
|
|
end
|
|
|
|
self.overriding_connection = connection
|
|
|
|
yield
|
|
ensure
|
|
self.overriding_connection = nil unless previous_connection.equal?(self.overriding_connection)
|
|
end
|
|
|
|
def connection
|
|
if connection = self.overriding_connection
|
|
connection
|
|
else
|
|
super
|
|
end
|
|
end
|
|
|
|
private
|
|
|
|
def overriding_connection
|
|
Thread.current[:overriding_connection]
|
|
end
|
|
|
|
def overriding_connection=(connection)
|
|
Thread.current[:overriding_connection] = connection
|
|
end
|
|
end
|
|
|
|
def connection_db_config
|
|
self.class.connection_db_config
|
|
end
|
|
end
|
|
end
|
|
end
|