Rails3 PG deferred constraints

This is a Rails 3 engine which provides a hack to avoid RI_ConstraintTrigger Error bug.

It tested with PosgreSQL 9.0.4 and Rails 3.1.0

Usage

I would recommend to use it only for tests and NEVER USE IN PRODUCTION

Add to your Gemfile:

group :test do
  gem 'rails3_pg_deferred_constraints'
end