Add surveys; custom generated by admins

Available during registration or after conference

Co-authored-by: Shyukri <shshyukriev@suse.com>
Co-authored-by: Henne <hvogel@opensuse.org>
Co-authored-by: Moises <mdeniz@suse.com>

spec/factories/survey_questions.rb

@@ -0,0 +1,6 @@
+FactoryGirl.define do
+  factory :survey_question do
+    survey
+    title 'What about this question?'
+  end
+end

spec/factories/survey_replies.rb

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+FactoryGirl.define do
+  factory :survey_reply do
+    user
+    survey_question
+  end
+end

spec/factories/survey_submissions.rb

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+FactoryGirl.define do
+  factory :survey_submission do
+    user
+    survey
+  end
+end

spec/factories/surveys.rb

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+FactoryGirl.define do
+  factory :survey do
+    title 'This is my survey'
+    factory :conference_survey do
+      association :surveyable, factory: :conference
+    end
+
+    factory :registration_survey do
+      association :surveyable, factory: :registration
+    end
+  end
+end