Proper partial credit checks

common/lib/xmodule/xmodule/css/combinedopenended/display.scss

@@ -282,6 +282,13 @@ div.combined-rubric-container {
     }
   }
 
+   label.choicegroup_partialcorrect {
+      &:before {
+        margin-right: 15px;
+        content: url('../images/partially-correct-icon.png');
+      }
+    }
+
   label.choicegroup_incorrect {
     &:before {
       margin-right: 15px;

common/lib/xmodule/xmodule/open_ended_grading_classes/combined_open_ended_rubric.py

@@ -224,7 +224,14 @@ class CombinedOpenEndedRubric(object):
                                 actual_scores[i] += [j]
 
         actual_scores = [sum(i)/len(i) for i in actual_scores]
-        correct = [int(a>.66) for a in actual_scores]
+        correct = []
+        for (i,a) in enumerate(actual_scores):
+            if int(a)/max_scores[i]==1:
+                correct.append(1)
+            elif int(a)==0:
+                correct.append(0)
+            else:
+                correct.append(.5)
 
         html = self.system.render_template('{0}/open_ended_combined_rubric.html'.format(self.TEMPLATE_DIR),
                                            {'categories': rubric_categories,

common/lib/xmodule/xmodule/open_ended_grading_classes/open_ended_module.py

@@ -697,7 +697,7 @@ class OpenEndedModule(openendedchild.OpenEndedChild):
         else:
             post_assessment = ""
             correct = ""
-            previous_answer = self.initial_display
+            previous_answer = ""
 
         context = {
             'prompt': self.child_prompt,

lms/templates/combinedopenended/openended/open_ended_combined_rubric.html

@@ -14,6 +14,8 @@
                     %if len(category['options'][j]['grader_types'])>0:
                         %if correct[i]==1:
                             <label class="choicegroup_correct wrapper-score-selection"></label>
+                        %elif correct[i]==.5:
+                            <label class="choicegroup_partialcorrect wrapper-score-selection"></label>
                         %else:
                             <label class="choicegroup_incorrect wrapper-score-selection"></label>
                         %endif