Remove unnecessary django imports

backend/ohq/models.py

@@ -5,10 +5,6 @@
 from email_tools.emails import send_email
 from phonenumber_field.modelfields import PhoneNumberField
 from schedule.models import Event, Occurrence
-from django.utils.translation import gettext, gettext_lazy as _
-from django.template.defaultfilters import date
-from django.conf import settings as django_settings
-from django.urls import reverse
 
 User = settings.AUTH_USER_MODEL
 
@@ -459,8 +455,8 @@ class Booking(models.Model):
 
     occurrence = models.ForeignKey(Occurrence, on_delete=models.CASCADE)
     user = models.ForeignKey(User, on_delete=models.CASCADE, blank=True, null=True)
-    start = models.DateTimeField(_("start"), db_index=True, blank=True)
-    end = models.DateTimeField(_("end"), db_index=True, blank=True)
+    start = models.DateTimeField(_("start"), db_index=True)
+    end = models.DateTimeField(_("end"), db_index=True)
 
     class Meta:
         verbose_name = _("booking")
@@ -469,7 +465,6 @@ class Meta:
         index_together = (("start", "end"),)
 
     def __str__(self):
-        return gettext("%(start)s to %(end)s") % {
-            "start": date(self.start, django_settings.DATE_FORMAT),
-            "end": date(self.end, django_settings.DATE_FORMAT),
-        }
+        start_str = self.start.strftime("%Y-%m-%d %H:%M:%S")
+        end_str = self.end.strftime("%Y-%m-%d %H:%M:%S")
+        return f"{start_str} to {end_str}"

backend/ohq/permissions.py

@@ -534,10 +534,7 @@ def has_object_permission(self, request, view, obj):
                         if field in restricted_student_fields:
                             return False
                     if "user" in updated_fields:
-                        if booking.user is not None: # Doesn’t allow a student to update user if someone already booked the slot
-                            return False
-                        else:
-                            return True
+                        return booking.user is None # Doesn’t allow a student to update user if someone already booked the slot
             else:
                 return False    
 

backend/ohq/views.py

@@ -19,8 +19,6 @@
 from django.http import HttpResponseBadRequest, JsonResponse
 from django.utils import timezone
 from django.utils.crypto import get_random_string
-from django.utils.translation import gettext_lazy as _
-from django.conf import settings as django_settings
 from django_auto_prefetching import prefetch
 from django_filters.rest_framework import DjangoFilterBackend
 from drf_excel.mixins import XLSXFileMixin