# I have a project. Migrations are stored in lib/foo/schema/xxx_description.rb,
# with classes called Foo::Schema::Description.

class Foo::Schema
  # Pretty simple, just tell AR to migrate based on my stored migrations
  def self.up
    ActiveRecord::Base.logger ||= Logger.new(StringIO.new)
    ActiveRecord::Migrator.up(migrations_path)
  end

  def self.migrations_path
    File.expand_path('../schema', __FILE__)
  end

  # Oh, but to make AR happy, the migration class names need to exist in the
  # global namespace, so I need to load my migrations and export all the
  # constants in Foo::Schema into the global namespace.

  Dir.entries(migrations_path).each do |file|
    path = File.join(migrations_path, file)
    require path if File.file?(path)
  end

  constants.each do |const_name|
    Kernel.const_set(const_name, const_get(const_name))
  end
end