Chris@909: class AllowNullPosition < ActiveRecord::Migration Chris@909: def self.up Chris@909: # removes the 'not null' constraint on position fields Chris@909: change_column :issue_statuses, :position, :integer, :default => 1, :null => true Chris@909: change_column :roles, :position, :integer, :default => 1, :null => true Chris@909: change_column :trackers, :position, :integer, :default => 1, :null => true Chris@909: change_column :boards, :position, :integer, :default => 1, :null => true Chris@909: change_column :enumerations, :position, :integer, :default => 1, :null => true Chris@909: end Chris@909: Chris@909: def self.down Chris@909: # nothing to do Chris@909: end Chris@909: end