AutoCommit Sam Aug 1 23:03:02 CEST 2015

app/models/survey/choice.rb

@@ -1,7 +1,7 @@
 class Survey::Choice < ActiveRecord::Base
   belongs_to :question, class_name: 'Survey::Question'
   attr_accessible :picture, :sort, :text, :icon, :picture_cache, :remove_picture, :question_id
-  has_many :answers, class_name: 'Survey::Answer'
+  has_many :answers, class_name: 'Survey::Answer', dependent: :destroy
   include ActionView::Helpers::TagHelper
   mount_uploader :picture, PictureUploader
   def to_s

app/models/survey/question.rb

@@ -1,7 +1,7 @@
 class Survey::Question < ActiveRecord::Base
   attr_accessible :text, :title, :typ, :choice_ids
   belongs_to :parent, polymorphic: true
-  has_many :choices
+  has_many :choices, dependent: :destroy
   has_many :answers, through: :choices
   include IsCommentable
 
@@ -22,7 +22,9 @@ class Survey::Question < ActiveRecord::Base
         cid= cid - found_ids
         Survey::Answer.where(user_id: user.id, choice_id: found_ids).delete_all
       else
+        if self.typ == 0 
         Survey::Answer.where(user_id: user.id, choice_id: self.choice_ids).delete_all
+        end
       end
       cid.each do |c|
         if self.choice_ids.include?(c)