Recently a coworker asked if there was a simple way to get the current version out of the schema_info table. Of course, one simple answer is to simply look in the database.

However, if you want to quickly pull the version from a command line, this rake task should do the trick:

namespace :db do
  desc "Returns the current schema version"
  task :version => :environment do
    connection = ActiveRecord::Base.connection
    select = 'select * from schema_info'
    version_num = connection.execute(select).result.flatten.first.to_i
    puts "Current version: " + version_num.to_s
  end
end