Improve transfer UI

apps/permission/models.py

@@ -4,6 +4,7 @@
 import functools
 import json
 import operator
+from time import sleep
 
 from django.contrib.contenttypes.models import ContentType
 from django.core.exceptions import ValidationError
@@ -44,6 +45,14 @@ class InstancedPermission:
                 else:
                     oldpk = obj.pk
                 # Ensure previous models are deleted
+                count = 0
+                while count < 1000:
+                    if self.model.model_class().objects.filter(pk=obj.pk).exists():
+                        # If the object exists, that means that one permission is currently checked.
+                        # We wait before the other permission, at most 1 second.
+                        sleep(1)
+                        continue
+                    break
                 for o in self.model.model_class().objects.filter(pk=obj.pk).all():
                     o._force_delete = True
                     Model.delete(o)

apps/wei/views.py

@@ -17,6 +17,7 @@ from django.http import HttpResponse
 from django.shortcuts import redirect
 from django.template.loader import render_to_string
 from django.urls import reverse_lazy
+from django.utils import timezone
 from django.views import View
 from django.views.generic import DetailView, UpdateView, CreateView, RedirectView, TemplateView
 from django.utils.translation import gettext_lazy as _
@@ -56,7 +57,11 @@ class WEIListView(ProtectQuerysetMixin, LoginRequiredMixin, SingleTableView):
 
     def get_context_data(self, **kwargs):
         context = super().get_context_data(**kwargs)
-        context["can_create_wei"] = PermissionBackend.check_perm(self.request.user, "wei.add_weiclub", WEIClub())
+        context["can_create_wei"] = PermissionBackend.check_perm(self.request.user, "wei.add_weiclub", WEIClub(
+            year=0,
+            date_start=timezone.now().date(),
+            date_end=timezone.now().date(),
+        ))
         return context