view db/migrate/078_add_custom_fields_position.rb @ 437:102056ec2de9 bug_169

Introduce a method on the sys controller to clear a repository cache; use a file in the mirror dir to notify the Ruby external repo script that it needs to call it

class AddCustomFieldsPosition < ActiveRecord::Migration
  def self.up
    add_column(:custom_fields, :position, :integer, :default => 1)
    CustomField.find(:all).group_by(&:type).each  do |t, fields|
      fields.each_with_index do |field, i|
        # do not call model callbacks
        CustomField.update_all "position = #{i+1}", {:id => field.id}
      end
    end
  end

  def self.down
    remove_column :custom_fields, :position
  end
end