class AddProjectsDefaultVersionId < ActiveRecord::Migration[4.2]
	def self.up
		# Don't try to add the column if redmine_default_version plugin was used
		unless column_exists?(:projects, :default_version_id, :integer)
			add_column :projects, :default_version_id, :integer, :default => nil
		end
	end

	def self.down
		remove_column :projects, :default_version_id
	end
end
