From 2b0d2cee0ad8592b117ac280e97a308853fd46af Mon Sep 17 00:00:00 2001
From: gthieleb <gunnar.thielebein@etomer.com>
Date: Wed, 11 Jul 2018 17:52:23 +0200
Subject: [PATCH] doc: cookbook: document workaround for celery (#197)

See https://github.com/jazzband/django-configurations/issues/196
---
 docs/cookbook.rst | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/docs/cookbook.rst b/docs/cookbook.rst
index 93b781b..8fcc467 100644
--- a/docs/cookbook.rst
+++ b/docs/cookbook.rst
@@ -136,8 +136,11 @@ Celery's documentation`_:
     os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'mysite.settings')
     os.environ.setdefault('DJANGO_CONFIGURATION', 'MySiteConfiguration')
 
-    import configurations
-    configurations.setup()
+    # The extra check is necessary to not call django.setup() twice.
+    from configurations import importer
+    if not importer.installed:
+        import configurations
+            configurations.setup()
 
     app = Celery('mysite')
     app.config_from_object('django.conf:settings')