appointment has list of examination types

smash/web/models.py

@@ -429,8 +429,8 @@ class Appointment(models.Model):
         verbose_name='Worker conducting the assessment (if applicable)',
         null=True, blank=True
     )
-    appointment_type = models.ForeignKey(AppointmentType,
-        verbose_name='Appointment type',
+    appointment_types = models.ManyToManyField(AppointmentType,
+        verbose_name='Appointment types',
         null=True, blank=True
     )
     room = models.ForeignKey(Room,