20120220172780_add_icon_to_taxons.rb

class AddIconToTaxons < ActiveRecord::Migration
  def up
    # skip this migration if the attribute already exists because of advanced taxon extension
    return if column_exists?(:taxons, :icon_file_name)
    add_column :taxons, :icon_file_name,    :string
    add_column :taxons, :icon_content_type, :string
    add_column :taxons, :icon_file_size,    :integer
    add_column :taxons, :icon_updated_at,   :datetime
  end

  def down
    remove_column :taxons, :icon_file_name
    remove_column :taxons, :icon_content_type
    remove_column :taxons, :icon_file_size
    remove_column :taxons, :icon_updated_at
  end
end