.

generic/models.py

@@ -8,6 +8,9 @@ import tagulous.models
 from sortedm2m.fields import SortedManyToManyField
 from django.conf import settings
 
+from django.contrib.contenttypes.fields import GenericForeignKey
+from django.contrib.contenttypes.models import ContentType
+
 class Plane(models.Model):
     plane = models.CharField(max_length=200)
 
@@ -93,4 +96,22 @@ class ExamBase(models.Model):
         return reverse("{}:exam_json".format(self.app_name), args=(self.pk,))
 
     def get_question_index(self, question):
-        return list(self.exam_questions.all()).index(question)
+        return list(self.exam_questions.all()).index(question)
+
+
+class QuestionNote(models.Model):
+    content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
+    object_id = models.PositiveIntegerField()
+    question = GenericForeignKey('content_type', 'object_id')
+    #author = models.ForeignKey(User,
+
+    author = models.CharField(max_length=200, blank=True)
+    note = models.TextField()
+    created_on = models.DateTimeField(auto_now_add=True)
+
+    #def get_absolute_url(self):
+    #    self.pk = self.rapid_id
+    #    return reverse('rapids:question_detail', kwargs={'pk': self.pk})
+
+    def __str__(self):
+        return "{} [{}] {}".format(self.author, self.created_on, self.note)