Merge pull request #404 from naleksi/master

Fixing survey link generation

app/helpers/application_helper.rb

@@ -26,7 +26,7 @@ def self.get_survey_link(survey_code, user_email, user_state = nil)
     latest_rs = user.response_sets.last
     user_state ||= latest_rs.nil? ? "signed_up" : latest_rs.user_state
     survey = Survey.where(access_code:  survey_code).order("survey_version DESC").first
-    response_set = ResponseSet.create(survey: survey, user_id: user)
+    response_set = ResponseSet.create(survey: survey, user_id: user.id)
     response_set.update_attribute(:user_state, user_state)
     Rails.application.routes.url_helpers.
       edit_my_survey_path( survey_code: survey.access_code, response_set_code: response_set.access_code)