class <%= migration_name %> < ActiveRecord::Migration
  def change
<% attachments.each do |attachment| -%>
    add_column :<%= class_name.underscore.camelize.tableize %>, :<%= attachment %>_file_name, :string
    add_column :<%= class_name.underscore.camelize.tableize %>, :<%= attachment %>_content_type, :string
    add_column :<%= class_name.underscore.camelize.tableize %>, :<%= attachment %>_file_size, :integer
    add_column :<%= class_name.underscore.camelize.tableize %>, :<%= attachment %>_updated_at, :datetime
    add_column :<%= class_name.underscore.camelize.tableize %>, :<%= attachment %>_fingerprint, :string, length: 32
<% end -%>
  end
end

class <%= migration_name %> < ActiveRecord::Migration
  def self.up
<% attachments.each do |attachment| -%>
    add_column :<%= class_name.underscore.camelize.tableize %>, :<%= attachment %>_file_name, :string
    add_column :<%= class_name.underscore.camelize.tableize %>, :<%= attachment %>_content_type, :string
    add_column :<%= class_name.underscore.camelize.tableize %>, :<%= attachment %>_file_size, :integer
    add_column :<%= class_name.underscore.camelize.tableize %>, :<%= attachment %>_updated_at, :datetime
<% end -%>
  end

  def self.down
<% attachments.each do |attachment| -%>
    remove_column :<%= class_name.underscore.camelize.tableize %>, :<%= attachment %>_file_name
    remove_column :<%= class_name.underscore.camelize.tableize %>, :<%= attachment %>_content_type
    remove_column :<%= class_name.underscore.camelize.tableize %>, :<%= attachment %>_file_size
    remove_column :<%= class_name.underscore.camelize.tableize %>, :<%= attachment %>_updated_at
<% end -%>
  end
end

Revert "Updated migration generator template."
Revert "Updated migration generator template."

Rails 3.0.x doesn't support new migration style

This reverts commit b7bfdec3b07cb348431510a3b400a40c110088c0.
