ModelAttribute: Add `#code` method

A method that returns a string representation of the attribute, in the
form `:class#:name".

This will be used to store a reference to the attribute in the database.
For example, a validation will reference a `ModelAttribute` in a
database column using this `#code` string.

Refs #4401

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/model_attribute.rb b/lib/model_attribute.rb
index 081d0cd0f..22c366b37 100644
--- a/lib/model_attribute.rb
+++ b/lib/model_attribute.rb
@@ -55,4 +55,8 @@ class ModelAttribute
 
   # Chouette::RoutingConstraintZone
   define :routing_constraint_zone, :name, :string
+
+  def code
+    "#{@klass}##{@name}"
+  end
 end