# File lib/openshift-origin-controller/app/models/district.rb, line 156
  def add_capacity(num_uids)
    if num_uids > 0
      additions = []
      additions.fill(0, num_uids) {|i| i+max_uid+1}
      OpenShift::DataStore.instance.add_district_uids(uuid, additions)
      @available_capacity += num_uids
      @max_uid += num_uids
      @max_capacity += num_uids
      @available_uids += additions
    else
      raise OpenShift::OOException.new("You must supply a positive number of uids to remove")
    end
  end