admin: do not load auquotidien_plugin.models if auquotidien_plugin is not installed

portail_citoyen/admin.py

@@ -14,8 +14,6 @@ from django.contrib.auth.models import Group
 
 from authentic2.saml.models import LibertyProvider, LibertyServiceProvider
 
-from auquotidien_plugin.models import AuQuotidienAPI
-
 from . import app_settings
 from . import models
 
@@ -188,6 +186,7 @@ if 'wcsinst.wcsinst' in settings.INSTALLED_APPS:
                 c += 1
                 sleep_length *= 2
                 if done and 'auquotidien_plugin' in settings.INSTALLED_APPS:
+                    from auquotidien_plugin.models import AuQuotidienAPI
                     defaults = {
                         'name': instance.title,
                         'orig': request.META['HTTP_HOST'],

portail_citoyen/settings.py

@@ -145,6 +145,7 @@ INSTALLED_APPS = (
     'data_source_plugin',
     'a2_service_list_plugin',
     'federation_plugin',
+    'auquotidien_plugin',
     'sekizai',
     'portail_citoyen',
 )