rake_db_features_prepare.rb

namespace :db do
  namespace :features do
    
    def checking_for_config
      if ActiveRecord::Base.configurations["features"]
        yield 
      else
        puts "Unable to prepare features database - it's not defined in your configuration. Skipping. Preparing test database instead."
        Rake::Task['db:test:prepare'].invoke
      end
    end
    
    desc "Clones the development database into the features environment"
    task :prepare => [:environment, 'db:abort_if_pending_migrations'] do
      Rake::Task['db:features:prepare!'].invoke
    end
    
    desc "Clones the development database into the features environment without checking for pending migrations."
    task :prepare! => [:environment, 'db:structure:dump'] do
      checking_for_config do
        ActiveRecord::Base.establish_connection(:features)
        ActiveRecord::Base.connection.recreate_database(ActiveRecord::Base.configurations["features"]["database"])
        ActiveRecord::Base.establish_connection(:features)
        ActiveRecord::Base.connection.execute('SET foreign_key_checks = 0')
        IO.readlines("db/#{RAILS_ENV}_structure.sql").join.split("\n\n").each do |table|
          ActiveRecord::Base.connection.execute(table)
        end
      end
    end
      
  end
end