[Certification] Add a compatibility property to CourseCertification

courses/certification/models.py

@@ -70,6 +70,11 @@ class CourseCertification(models.Model):
     def get_absolute_url(self):
         return reverse_lazy('courses_legacy:certificate', args=[self.link_hash])
 
+    # FIXME: this is a compatibility patch and must be removed in the future
+    @property
+    def document_type(self):
+        return self.type
+
     def save(self, *args, **kwargs):
         self.course_workload = self.course_student.course.workload
         self.course_total_units = self.course_student.units_done.count()