test/templates/app/models/city.rb in dry_crud-1.2.5 vs test/templates/app/models/city.rb in dry_crud-1.2.6

@@ -1,13 +1,25 @@
 class City < ActiveRecord::Base
   
   has_many :people
 
-  validates_presence_of :name, :country_code
+  validates :name, :presence => true
+  validates :country_code, :presence => true
   
+  before_destroy :protect_with_inhabitants
+  
   default_scope order('country_code, name')
   
   def label
     "#{name} (#{country_code})"
+  end
+  
+  protected
+  
+  def protect_with_inhabitants
+    if people.exists?
+      errors.add(:base, "You cannot destroy this city as long as it has any inhabitants") 
+      false
+    end
   end
   
 end
\ No newline at end of file