bigdir/db/migrate/078_add_custom_fields_posit...

16 lines
441 B
Ruby

class AddCustomFieldsPosition < ActiveRecord::Migration
def self.up
add_column(:custom_fields, :position, :integer, :default => 1)
CustomField.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