logic to use new subject limited field added and replace hard coded list

app/models/country.rb

@@ -33,4 +33,31 @@ class Country < ApplicationRecord
     YAML.load(File.read("lib/countries-in-european-economic-area.yaml"))
 
   validates :code, inclusion: { in: CODES }
+
+  attribute :subject_limited, :boolean
+
+  def eligibility_route
+    if subject_limited
+      "expanded"
+    elsif eligibility_skip_questions
+      "reduced"
+    else
+      "standard"
+    end
+  end
+
+  def eligibility_route=(value)
+    subject_limited_will_change!
+    eligibility_skip_questions_will_change!
+    if value == "standard"
+      self.subject_limited = false 
+      self.eligibility_skip_questions = false
+    elsif value == "reduced"
+      self.subject_limited = false 
+      self.eligibility_skip_questions = true
+    elsif value == "expanded"
+      self.subject_limited = true 
+      self.eligibility_skip_questions = false
+    end
+  end
 end