app/models/answer.rb in ask-0.4.1 vs app/models/answer.rb in ask-0.5.0

@@ -1,19 +1,37 @@
 class Answer < ActiveRecord::Base
 
-  attr_accessible :question_id, :answer, :choice_id
+  attr_accessible :question_id, :answer, :choice_id, :uploaded_file, :uploaded_file_cache
   
   belongs_to :answerer, :polymorphic => true
   belongs_to :question
   belongs_to :choice
 
   validates_presence_of :question_id
 
+  mount_uploader :uploaded_file, UploadedFileUploader
+
   default_scope joins(:question).order('questions.position')
   scope :for_answerer, lambda{|answerer| where(:answerer_type => answerer.class.to_s, :answerer_id => answerer.id)}
   scope :for_question, lambda{|question| where(:question_id => question.id)}
 
   def to_s
-    self.answer.to_s
+    if question.supports_uploads?
+      self.uploaded_file.url
+    else
+      self.answer.to_s
+    end
+  end
+
+  # This method is used to see if the answer fails to meat "required" status if the question is required.
+  #   should return true on fail and nil/false on success.
+  def fails_required?
+    if question.required
+      if question.supports_uploads?
+        uploaded_file.blank?
+      else
+        answer.blank?
+      end
+    end
   end
 
 end