Rails 2 Installation

To get HairTrigger working in Rails 2, you need to:

Add it to your project

Put hairtrigger in your Gemfile, or if you're not using bundler, you can gem install hairtrigger and then put hairtrigger in environment.rb

Create lib/tasks/hair_trigger.rake with the following:

$VERBOSE = nil
Dir["#{Gem::Specification.find_by_name('hairtrigger').full_gem_path}/lib/tasks/*.rake"].each { |ext| load ext }

This will give you the db:generate_trigger_migration task, and will ensure that hairtrigger hooks into db:schema:dump.

If you are unpacking the gem in vendor/plugins, this step is not needed (though you'll then want to delete its Gemfile to avoid possible conflicts).