created and applied settings configurations

django_fsm_log/backends.py

@@ -0,0 +1,13 @@
+from django.core.exceptions import ImproperlyConfigured
+from django.core.cache import get_cache
+from django.conf import settings
+from .settings import DJANGO_FSM_LOG_USE_CACHE
+
+if DJANGO_FSM_LOG_USE_CACHE:
+    if hasattr(settings, 'DJANGO_FSM_LOG_CACHE_BACKEND'):
+        cache = get_cache(settings.DJANGO_FSM_LOG_CACHE_BACKEND)
+elif hasattr(settings, 'DJANGO_FSM_LOG_CACHE_BACKEND'):
+    raise ImproperlyConfigured
+else:
+    cache = get_cache('default')
+

django_fsm_log/managers.py

@@ -1,7 +1,7 @@
 from django.db import models
 from django.db.models.query import QuerySet
 from django.contrib.contenttypes.models import ContentType
-from django.core.cache import cache
+from .backends import cache
 
 
 class StateLogQuerySet(QuerySet):

django_fsm_log/models.py

@@ -5,11 +5,10 @@
 from django.contrib.contenttypes.models import ContentType
 from django.db import models
 from django.utils.timezone import now
-from django.core.cache import cache
 
 from django_fsm.signals import pre_transition, post_transition
 
-from . import settings
+from .backends import DJANGO_FSM_LOG_USE_CACHE
 from .managers import StateLogManager
 
 
@@ -34,7 +33,9 @@ def __unicode__(self):
 
 
 def pre_transition_callback(sender, instance, name, source, target, **kwargs):
-    if settings.DJANGO_FSM_LOG_PENDING_STATELOGS:
+    if not DJANGO_FSM_LOG_USE_CACHE:
+        pass
+    else:
         StateLog.objects.create_pending(
             by=getattr(instance, 'by', None),
             state=target,
@@ -44,16 +45,16 @@ def pre_transition_callback(sender, instance, name, source, target, **kwargs):
 
 
 def post_transition_callback(sender, instance, name, source, target, **kwargs):
-    if settings.DJANGO_FSM_LOG_PENDING_STATELOGS:
-        StateLog.objects.commit_pending_for_object(instance)
-    else:
+    if not DJANGO_FSM_LOG_USE_CACHE:
         state_log = StateLog(
             by=getattr(instance, 'by', None),
             state=target,
             transition=name,
             content_object=instance,
         )
         state_log.save()
+    else:
+        StateLog.objects.commit_pending_for_object(instance)
 
 pre_transition.connect(pre_transition_callback)
 post_transition.connect(post_transition_callback)

django_fsm_log/settings.py

@@ -1,11 +1,6 @@
-"""Settings for django-fsm-log"""
-import logging
 from django.conf import settings
 
-LOG = logging.getLogger(__name__)
-
-if not hasattr(settings, 'CACHES'):
-    LOG.warning("No cache backend set in django. You will not be able to access pending StateLogs")
-    DJANGO_FSM_LOG_PENDING_STATELOGS = False
+if hasattr(settings, 'DJANGO_FSM_LOG_USE_CACHE'):
+    DJANGO_FSM_LOG_USE_CACHE = settings.DJANGO_FSM_LOG_USE_CACHE
 else:
-    DJANGO_FSM_LOG_PENDING_STATELOGS = True
+    DJANGO_FSM_LOG_USE_CACHE = False