rails 2 table-less active record model.

tableless.rb

# class Foo < Tableless
#   column :bar, :string
#   column :baz, :datetime
#   validates_presence_of :bar, :baz
# end
class Tableless < ActiveRecord::Base
  def self.columns
    @columns ||= [];
  end

  def self.column(name, sql_type = nil, default = nil, null = true)
    columns << ActiveRecord::ConnectionAdapters::Column.new(name.to_s, default,
      sql_type.to_s, null)
  end

  # Override the save method to prevent exceptions.
  def save(validate = true)
    validate ? valid? : true
  end
end