Bump djangorestframework to 3.9 and adapt the code

See: https://www.django-rest-framework.org/community/3.9-announcement/

The 3.10 release begins the deprecation process for the CoreAPI based
schema generation and requires thus more changes - especially for the
documentation.

modoboa/admin/api.py

@@ -8,7 +8,7 @@ from django import http
 from django.contrib.contenttypes.models import ContentType
 
 from rest_framework import filters, status, viewsets
-from rest_framework.decorators import detail_route, list_route
+from rest_framework.decorators import action
 from rest_framework.exceptions import ParseError
 from rest_framework.permissions import DjangoModelPermissions, IsAuthenticated
 from rest_framework.response import Response
@@ -86,7 +86,7 @@ class AccountViewSet(viewsets.ModelViewSet):
             queryset = queryset.filter(mailbox__domain__name=domain)
         return queryset
 
-    @detail_route(methods=["put"])
+    @action(methods=["put"], detail=True)
     def password(self, request, pk=None):
         """Change account password."""
         try:
@@ -100,7 +100,7 @@ class AccountViewSet(viewsets.ModelViewSet):
         return Response(
             serializer.errors, status=status.HTTP_400_BAD_REQUEST)
 
-    @list_route()
+    @action(detail=False)
     def exists(self, request):
         """Check if account exists.
 

modoboa/admin/urls_api.py

@@ -9,12 +9,12 @@ from rest_framework import routers
 from . import api
 
 router = routers.SimpleRouter()
-router.register(r"domains", api.DomainViewSet, base_name="domain")
+router.register(r"domains", api.DomainViewSet, basename="domain")
 router.register(
-    r"domainaliases", api.DomainAliasViewSet, base_name="domain_alias")
-router.register(r"accounts", api.AccountViewSet, base_name="account")
-router.register(r"aliases", api.AliasViewSet, base_name="alias")
+    r"domainaliases", api.DomainAliasViewSet, basename="domain_alias")
+router.register(r"accounts", api.AccountViewSet, basename="account")
+router.register(r"aliases", api.AliasViewSet, basename="alias")
 router.register(
-    r"senderaddresses", api.SenderAddressViewSet, base_name="sender_address")
+    r"senderaddresses", api.SenderAddressViewSet, basename="sender_address")
 
 urlpatterns = router.urls

modoboa/limits/urls_api.py

@@ -10,6 +10,6 @@ from . import viewsets
 
 router = routers.SimpleRouter()
 router.register(
-    r"resources", viewsets.ResourcesViewSet, base_name="resources")
+    r"resources", viewsets.ResourcesViewSet, basename="resources")
 
 urlpatterns = router.urls

modoboa/relaydomains/urls_api.py

@@ -10,5 +10,5 @@ from . import viewsets
 
 router = routers.SimpleRouter()
 router.register(
-    r"relaydomains", viewsets.RelayDomainViewSet, base_name="relaydomain")
+    r"relaydomains", viewsets.RelayDomainViewSet, basename="relaydomain")
 urlpatterns = router.urls

requirements.txt

@@ -9,7 +9,7 @@ dj-database-url
 
 coreapi==2.3.3
 coreapi-cli==1.0.9
-djangorestframework==3.7.7
+djangorestframework>=3.9,<3.10
 
 passlib==1.7.2
 bcrypt  # Requires libffi-dev and python-dev