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from unittest import mock
from django.contrib import admin
from django.contrib.auth.models import User
from django.contrib.contenttypes.models import ContentType
from django.http import HttpResponse
from django.test import TestCase, override_settings
from django.urls import path, reverse
from .models import Book
class Router:
target_db = None
def db_for_read(self, model, **hints):
return self.target_db
db_for_write = db_for_read
def allow_relation(self, obj1, obj2, **hints):
return True
site = admin.AdminSite(name="test_adminsite")
site.register(Book)
def book(request, book_id):
b = Book.objects.get(id=book_id)
return HttpResponse(b.title)
urlpatterns = [
path("admin/", site.urls),
path("books/<book_id>/", book),
]
@override_settings(ROOT_URLCONF=__name__, DATABASE_ROUTERS=["%s.Router" % __name__])
class MultiDatabaseTests(TestCase):
databases = {"default", "other"}
@classmethod
def setUpTestData(cls):
cls.superusers = {}
cls.test_book_ids = {}
for db in cls.databases:
Router.target_db = db
cls.superusers[db] = User.objects.create_superuser(
username="admin",
password="something",
email="test@test.org",
)
b = Book(name="Test Book")
b.save(using=db)
cls.test_book_ids[db] = b.id
@mock.patch("django.contrib.admin.options.transaction")
def test_add_view(self, mock):
for db in self.databases:
with self.subTest(db=db):
Router.target_db = db
self.client.force_login(self.superusers[db])
self.client.post(
reverse("test_adminsite:admin_views_book_add"),
{"name": "Foobar: 5th edition"},
)
mock.atomic.assert_called_with(using=db)
@mock.patch("django.contrib.admin.options.transaction")
def test_change_view(self, mock):
for db in self.databases:
with self.subTest(db=db):
Router.target_db = db
self.client.force_login(self.superusers[db])
self.client.post(
reverse(
"test_adminsite:admin_views_book_change",
args=[self.test_book_ids[db]],
),
{"name": "Test Book 2: Test more"},
)
mock.atomic.assert_called_with(using=db)
@mock.patch("django.contrib.admin.options.transaction")
def test_delete_view(self, mock):
for db in self.databases:
with self.subTest(db=db):
Router.target_db = db
self.client.force_login(self.superusers[db])
self.client.post(
reverse(
"test_adminsite:admin_views_book_delete",
args=[self.test_book_ids[db]],
),
{"post": "yes"},
)
mock.atomic.assert_called_with(using=db)
class ViewOnSiteRouter:
def db_for_read(self, model, instance=None, **hints):
if model._meta.app_label in {"auth", "sessions", "contenttypes"}:
return "default"
return "other"
def db_for_write(self, model, **hints):
if model._meta.app_label in {"auth", "sessions", "contenttypes"}:
return "default"
return "other"
def allow_relation(self, obj1, obj2, **hints):
return obj1._state.db in {"default", "other"} and obj2._state.db in {
"default",
"other",
}
def allow_migrate(self, db, app_label, **hints):
return True
@override_settings(ROOT_URLCONF=__name__, DATABASE_ROUTERS=[ViewOnSiteRouter()])
class ViewOnSiteTests(TestCase):
databases = {"default", "other"}
def test_contenttype_in_separate_db(self):
ContentType.objects.using("other").all().delete()
book = Book.objects.using("other").create(name="other book")
user = User.objects.create_superuser(
username="super", password="secret", email="super@example.com"
)
book_type = ContentType.objects.get(app_label="admin_views", model="book")
self.client.force_login(user)
shortcut_url = reverse("admin:view_on_site", args=(book_type.pk, book.id))
response = self.client.get(shortcut_url, follow=False)
self.assertEqual(response.status_code, 302)
self.assertRegex(
response.url, f"http://(testserver|example.com)/books/{book.id}/"
)
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