Added target for surveys.

app/models/conference.rb

@@ -36,7 +36,7 @@ class Conference < ActiveRecord::Base
   has_many :subscriptions, dependent: :destroy
   has_many :surveys, as: :surveyable, dependent: :destroy do
     def for_registration
-      where(target: targets[:registration])
+      where(target: targets[:during_registration])
     end
   end
 

app/models/survey.rb

@@ -2,7 +2,6 @@ class Survey < ActiveRecord::Base
   belongs_to :surveyable, polymorphic: true
   has_many :survey_questions
 
-  enum target: [:conference, :registration]
-
+  enum target: [:after_conference, :during_registration]
   validates :title, presence: true
 end