Calculate points for automatically checked questions

[edumed.git] / wtem / models.py

diff --git a/wtem/models.py b/wtem/models.py
index 56c814c..e29b1bc 100644 (file)
--- a/wtem/models.py
+++ b/wtem/models.py
@@ -87,7 +87,44 @@ class Submission(models.Model):
             else:
                 return None
         else:
-            return 1 # TODO: actually calculate the result
+            if not self.answers:
+                return None
+            answer = simplejson.loads(self.answers)[exercise_id]['closed_part']
+            t = exercise['type']
+            if t == 'edumed_uporzadkuj':
+                return exercise['points'] if map(int, answer) == exercise['answer'] else 0
+            if t == 'edumed_przyporzadkuj':
+                toret = 0
+                for bucket_id, items in answer.items():
+                    for item_id in items:
+                        if int(item_id) == exercise['answer'][bucket_id]: # @@ We assume only one item per bucker for now...
+                            toret += exercise['points_per_hit']
+                return toret
+            if t == 'edumed_wybor':
+                if len(exercise['answer']) == 1:
+                    if len(answer) and int(answer[0]) == exercise['answer'][0]:
+                        return exercise['points']
+                    else:
+                        return 0
+                else:
+                    toret = 0
+                    for id in map(int, answer):
+                        if id in exercise['answer']:
+                            toret += exercise['points_per_hit']
+                    return toret
+            if t == 'edumed_prawdafalsz':
+                toret = 0
+                for idx, statement in enumerate(exercise['statements']):
+                    if answer[idx] == 'true':
+                        given = True
+                    elif answer[idx] == 'false':
+                        given = False
+                    else:
+                        given = None
+                    if given == statement[1]:
+                        toret += exercise['points_per_hit']
+                return toret
+            raise NotImplementedError
 
     @property
     def final_result(self):
@@ -95,9 +132,12 @@ class Submission(models.Model):
         for exercise_id in map(str,range(1, len(exercises) + 1)):
             mark = self.get_final_exercise_mark(exercise_id)
             if mark is not None:
-                final += int(mark)
+                final += mark
         return final
 
+    @property
+    def final_result_as_string(self):
+        return ('%.2f' % self.final_result).rstrip('0').rstrip('.')
 
 class Attachment(models.Model):
     submission = models.ForeignKey(Submission)