To use your migrations for preparing test database create a file testdb.rake in the directory lib/tasks. Now add the following code in the lib/tasks/testdb.rake file… module Rake module TaskManager def redefine_task(task_class, args, &block) task_name, deps = resolve_args(args) task_name = task_class.scope_name(@scope, task_name) deps = [deps] unless deps.respond_to?(:to_ary) deps = deps.collect {|d| [ Read More ]