find solved exercises of users now by fetching submissions with cause assess or submit

app/models/exercise.rb

@@ -198,10 +198,9 @@ class Exercise < ActiveRecord::Base
 
   def maximum_score(user = nil)
     if user
-      submissions.where(user: user, cause: "assess").where("score IS NOT NULL").order("score DESC").first.score || 0 rescue 0
+      submissions.where(user: user).where("cause IN ('submit','assess')").where("score IS NOT NULL").order("score DESC").first.score || 0 rescue 0
     else
-      5
-      #files.teacher_defined_tests.sum(:weight)
+      files.teacher_defined_tests.sum(:weight)
     end
   end
 

app/models/proxy_exercise.rb

@@ -42,11 +42,10 @@ class ProxyExercise < ActiveRecord::Base
     def findMatchingExercise(user)
       #exercises.shuffle.first
       # hier vielleicht nur betrachten wenn der user die aufgabe assessed oder submitted hat
-      exercisesUserHasAccessed = user.submissions.map{|s| s.exercise}.uniq
+      exercisesUserHasAccessed = user.submissions.where("cause IN ('submit','assess')").map{|s| s.exercise}.uniq
       tagsUserHasSeen = exercisesUserHasAccessed.map{|ex| ex.tags}.uniq.flatten
       puts "exercisesUserHasAccessed #{exercisesUserHasAccessed}"
 
-
       # find execises
       potentialRecommendedExercises = []
       exercises.each do |ex|