将Rails项目从3.2.1降级到2.3.3

Question

My first Rails project deploy, and I've run into an issue. The project is Rails 3.2.1, Ruby 1.9.3 Yesterday, I was given the hosting access, and they're having Rails 2.3.3, Ruby 1.8.7

If I'll decide to still deploy the app there, what changes do I need to make to it?

Specifically, I'm interested in Gemfile changes. Here's my current gemfile:

source 'https://rubygems.org'

gem 'rails', '2.3.3'#'3.2.1'

# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'

gem 'sqlite3'


# Gems used only for assets and not required
# in production environments by default.
group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1'

  # See https://github.com/sstephenson/execjs#readme for more supported runtimes
  # gem 'therubyracer'

  gem 'uglifier', '>= 1.0.3'
end

gem 'jquery-rails'

gem 'haml-rails'
gem 'haml'

gem 'omniauth-twitter'

What do I need to change? How do I look-up all the required dependencies and gems versions for old Rails versions?

Answer 1

Downgrading from 3.x to 2.3 is the dumbest thing you can do in your case. Install gems locally, or ask your hosting company support department — they have to help.

If you can't, save your time — use Heroku, OpenShift or any other hosting company.