Add Units

app/models/user.rb

@@ -11,6 +11,8 @@ class User < ApplicationRecord
     disabled: 0,    # administratively disallowed to sign in
   }, default: :active
 
+  has_many :units, -> { order :lft }, dependent: :destroy
+
   def at_least(status)
     User.statuses[self.status] >= User.statuses[status]
   end