Merge branch '73-reload-source' into 'master'

Resolve "Need to restart server to access created ldp source"

Closes #73

See merge request startinblox/djangoldp-packages/djangoldp!82

djangoldp/models.py

-from django.conf import settings
-from django.contrib.auth.models import AnonymousUser, User
+from django.contrib.auth.models import User
 from django.db import models
 from django.db.models.base import ModelBase
 from django.urls import get_resolver
 from django.utils.decorators import classonlymethod
-from guardian.shortcuts import get_perms
+
 from djangoldp.permissions import LDPPermissions
 
 User._meta.rdf_type = "foaf:user"

djangoldp/tests/runner.py

-import django
 import sys
+
+import django
 from django.conf import settings
 
 settings.configure(DEBUG=False,
-                   ALLOWED_HOSTS = ["*"],
+                   ALLOWED_HOSTS=["*"],
                    DATABASES={
                        'default': {
                            'ENGINE': 'django.db.backends.sqlite3',
                        }
                    },
-                   LDP_RDF_CONTEXT = {
+                   LDP_RDF_CONTEXT={
                        "@context": {
                            "@vocab": "http://happy-dev.fr/owl/#",
                            "foaf": "http://xmlns.com/foaf/0.1/",
@@ -35,7 +36,8 @@ settings.configure(DEBUG=False,
                            "control": "acl:Control"
                        }
                    },
-                   AUTHENTICATION_BACKENDS = ('django.contrib.auth.backends.ModelBackend', 'guardian.backends.ObjectPermissionBackend'),
+                   AUTHENTICATION_BACKENDS=(
+                   'django.contrib.auth.backends.ModelBackend', 'guardian.backends.ObjectPermissionBackend'),
                    ROOT_URLCONF='djangoldp.urls',
                    DJANGOLDP_PACKAGES=['djangoldp.tests'],
                    INSTALLED_APPS=('django.contrib.auth',
@@ -46,10 +48,9 @@ settings.configure(DEBUG=False,
                                    'djangoldp',
                                    'djangoldp.tests',
                                    ),
-                   SITE_URL = 'http://happy-dev.fr',
+                   SITE_URL='http://happy-dev.fr',
                    )
 
-
 django.setup()
 from django.test.runner import DiscoverRunner
 
@@ -64,9 +65,9 @@ failures = test_runner.run_tests([
     'djangoldp.tests.tests_auto_author',
     'djangoldp.tests.tests_get',
     'djangoldp.tests.tests_delete',
+    'djangoldp.tests.tests_sources',
     # 'djangoldp.tests.tests_temp'
 
 ])
 if failures:
     sys.exit(failures)
-

djangoldp/tests/tests_sources.py

+from rest_framework.test import APIRequestFactory, APIClient, APITestCase
+
+from djangoldp.models import LDPSource
+
+
+class TestSource(APITestCase):
+
+    def setUp(self):
+        self.factory = APIRequestFactory()
+        self.client = APIClient()
+
+    def tearDown(self):
+        pass
+
+    def test_get_resource(self):
+        source = LDPSource.objects.create(federation="source_name", container="http://bar.foo/")
+        response = self.client.get('/sources/{}/'.format(source.federation), content_type='application/ld+json')
+        self.assertEqual(response.status_code, 200)

djangoldp/views.py

+import sys
+from importlib import reload
+
 from django.apps import apps
 from django.conf import settings
 from django.conf.urls import url, include
 from django.contrib.auth import get_user_model
 from django.core.exceptions import FieldDoesNotExist
 from django.core.urlresolvers import get_resolver
+from django.db.models.signals import post_save, post_delete
 from django.db.utils import OperationalError, ProgrammingError
+from django.dispatch import receiver
 from django.shortcuts import get_object_or_404
+from django.urls import clear_url_caches
 from django.utils.decorators import classonlymethod
-from guardian.shortcuts import get_objects_for_user
 from pyld import jsonld
 from rest_framework import status
 from rest_framework.authentication import SessionAuthentication
 from rest_framework.parsers import JSONParser
 from rest_framework.renderers import JSONRenderer
-from rest_framework.viewsets import ModelViewSet
 from rest_framework.response import Response
-
+from rest_framework.viewsets import ModelViewSet
 
 from djangoldp.models import LDPSource, Model
 from djangoldp.permissions import LDPPermissions
@@ -133,7 +137,8 @@ class LDPViewSet(LDPViewSetGenerator):
             meta_args['exclude'] = self.exclude or ()
         meta_class = type('Meta', (), meta_args)
         from djangoldp.serializers import LDPSerializer
-        return type(LDPSerializer)(self.model._meta.object_name.lower() + name_prefix + 'Serializer', (LDPSerializer,), {'Meta': meta_class})
+        return type(LDPSerializer)(self.model._meta.object_name.lower() + name_prefix + 'Serializer', (LDPSerializer,),
+                                   {'Meta': meta_class})
 
     def create(self, request, *args, **kwargs):
         serializer = self.get_write_serializer(data=request.data)
@@ -255,7 +260,7 @@ class LDPNestedViewSet(LDPViewSet):
             nested_related_name = related_field.remote_field.name
 
         return cls.urls(
-            lookup_field= Model.get_meta(related_field.related_model, 'lookup_field', 'pk'),
+            lookup_field=Model.get_meta(related_field.related_model, 'lookup_field', 'pk'),
             model=related_field.related_model,
             exclude=(nested_related_name,) if related_field.one_to_many else (),
             parent_model=cls.get_model(**kwargs),
@@ -283,3 +288,14 @@ class LDPSourceViewSet(LDPViewSet):
 
     def get_queryset(self, *args, **kwargs):
         return super().get_queryset(*args, **kwargs).filter(federation=self.federation)
+
+
+@receiver([post_save, post_delete], sender=LDPSource)
+def reload_sources_module(sender, instance, **kwargs):
+    urlconf = settings.ROOT_URLCONF
+    clear_url_caches()
+
+    if 'djangoldp.urls' in sys.modules:
+        reload(sys.modules['djangoldp.urls'])
+    if urlconf in sys.modules:
+        reload(sys.modules[urlconf])