by johngrimes

johngrimes / t-minus

Instant prelaunch page for your Rails 3 app.

122 Stars 10 Forks Last release: Not found Apache License 2.0 84 Commits 6 Releases

Available items

No Items, yet!

The developer of this repository has not created any items for sale yet. Need a bug fixed? Help with integration? A different license? Create a request here:


IMPORTANT NOTE: This repository is no longer actively maintained.

T-Minus is a Rails engine and set of generators that make it easier to create a prelaunch page for your Rails application. It includes support for the collection of email addresses from interested visitors, and it can automatically update your Campaign Monitor mailing list.

T-Minus currently only works with Rails 3 applications.

You can use T-Minus as a gem by adding it the following line to your Gemfile, then running

gem 't-minus'

Or you can install it as a plugin:

rails plugin install http://github.com/johngrimes/t-minus.git

Getting started

Once you have T-Minus installed, run the installation generator:

rails generate t_minus:install

By default, this will generate the following:

  • Configuration file -
  • Database migration for prelaunch_subscribers
  • Prelaunch page view template -
  • Prelaunch layout template -
  • Empty prelaunch stylesheet -

Then run:

rake db:migrate



file is separated into environments, and has the following options:
  • active
    (optional, defaults to
    ) - Set this to
    in environments in which you want the prelaunch page to show in place of the rest of your app. When your app launches, you can simply change this to
    in production.
  • campaign_monitor_api_key
    (optional) - Add your Campaign Monitor API key and list ID to have new subscribers automatically added.

Having trouble finding your Campaign Monitor API key or list ID? Visit this page.

Customising your model or controller

If you want to customise the PrelaunchController or the PrelaunchSubscriber model, simply use the built-in generators and make changes to the generated files:

rails generate t_minus:controller

rails generate t_minus:model

Contributing to T-Minus

I encourage you to:

  • Fork the project.
  • Make your feature addition or bug fix.
  • Add features / specs for it.
  • Send me a pull request. Bonus points for topic branches.

A quick guide to getting the features and specs running

T-Minus works out on a Rails project in the test/rails_app directory.

First thing to do once you have cloned it down is to go into the test/rails_app directory and run

bundle install
to get all the dependencies.

Then go back to the root of T-Minus and run:



rake spec

If the features or specs don't pass, please let me know.


Copyright (c) 2010 John Grimes. See LICENSE for details.

We use cookies. If you continue to browse the site, you agree to the use of cookies. For more information on our use of cookies please see our Privacy Policy.