Use percentages in one outcome summary

Author: matijapretnar

web/attempts/outcome.py

@@ -55,6 +55,12 @@ def summary(self):
         empty = f'{self.empty} { _("empty") }'
         return f"{valid} / {invalid} / {empty}"
 
+    def percentage_summary(self):
+        valid = f'{self.valid_percentage}% { _("valid") }'
+        invalid = f'{self.invalid_percentage}% { _("invalid") }'
+        empty = f'{self.empty_percentage}% { _("empty") }'
+        return f"{valid} / {invalid} / {empty}"
+
     @classmethod
     def group_dict(cls, parts, users, parts_group_by, users_group_by):
         part_group_sizes = _group_sizes(parts, *parts_group_by)

web/templates/courses/_problem_set.html

@@ -4,7 +4,7 @@
   {% if course.is_taught %}
   {% spaceless %}
   <div data-toggle="tooltip"
-       title="{{ problem_set.outcome.summary }} ">
+       title="{{ problem_set.outcome.percentage_summary }} ">
   {% if problem_set.outcome.valid_percentage %}
   <hr class="indicator background5" width="{{ problem_set.outcome.valid_percentage }}%">
   {% endif %}