lib/active_record/connection_adapters/abstract_mysql_adapter.rb
module ActiveRecord
module ConnectionAdapters
class AbstractMysqlAdapter < AbstractAdapter
def add_authorstamps_sql(table_name)
[add_column_sql(table_name, :created_by, :string), add_column_sql(table_name, :updated_by, :string)]
end
def remove_authorstamps_sql(table_name)
[remove_column_sql(table_name, :updated_by), remove_column_sql(table_name, :created_by)]
end
end
end
end