Fixes save pruning bug

django_q/admin.py

@@ -1,5 +1,4 @@
 from django.contrib import admin
-
 from django.utils.translation import ugettext_lazy as _
 
 from .tasks import async
@@ -11,6 +10,7 @@ class TaskAdmin(admin.ModelAdmin):
         u'name',
         'func',
         'started',
+        'stopped',
         'time_taken'
     )
 
@@ -45,6 +45,7 @@ class FailAdmin(admin.ModelAdmin):
         'name',
         'func',
         'started',
+        'stopped',
         'result'
     )
 
@@ -74,6 +75,7 @@ class ScheduleAdmin(admin.ModelAdmin):
 
     list_filter = ('next_run', 'schedule_type')
     search_fields = ('func',)
+    list_display_links = ('id', 'func')
 
 
 admin.site.register(Schedule, ScheduleAdmin)

django_q/apps.py

@@ -1,4 +1,5 @@
 from django.apps import AppConfig
+
 from .conf import Conf
 
 

django_q/cluster.py

@@ -35,8 +35,6 @@
 from django_q.monitor import Status, Stat
 
 
-
-
 class Cluster(object):
     def __init__(self, list_key=Conf.Q_LIST):
         try:
@@ -389,7 +387,7 @@ def save_task(task):
         return
     # SAVE LIMIT > 0: Prune database, SAVE_LIMIT 0: No pruning
     if task['success'] and 0 < Conf.SAVE_LIMIT < Success.objects.count():
-        Success.objects.first().delete()
+        Success.objects.last().delete()
 
     try:
         Task.objects.create(id=task['id'],
@@ -450,7 +448,8 @@ def scheduler(list_key=Conf.Q_LIST):
         kwargs['list_key'] = list_key
         s.task = tasks.async(s.func, *args, **kwargs)
         if not s.task:
-            logger.error(_('{} failed to create a task from schedule {} [{}]').format(current_process().name, s.id), s.func)
+            logger.error(_('{} failed to create a task from schedule {} [{}]').format(current_process().name, s.id),
+                         s.func)
         else:
             logger.info(_('{} created a task from schedule {} [{}]').format(current_process().name, s.id, s.func))
         s.save()

django_q/conf.py

@@ -64,6 +64,7 @@ class Conf(object):
     STOPPED = _('Stopped')
     STOPPING = _('Stopping')
 
+
 # logger
 logger = logging.getLogger('django-q')
 
@@ -90,5 +91,6 @@ def get_redis_client():
         return django_redis.get_redis_connection(Conf.DJANGO_REDIS)
     return redis.StrictRedis(**Conf.REDIS)
 
+
 # redis client
 redis_client = get_redis_client()

django_q/models.py

@@ -44,6 +44,7 @@ def __unicode__(self):
 
     class Meta:
         app_label = 'django_q'
+        ordering = ['-stopped']
 
 
 @receiver(pre_save, sender=Task)
@@ -78,6 +79,7 @@ class Meta:
         app_label = 'django_q'
         verbose_name = _('Successful task')
         verbose_name_plural = _('Successful tasks')
+        ordering = ['-stopped']
         proxy = True
 
 
@@ -94,6 +96,7 @@ class Meta:
         app_label = 'django_q'
         verbose_name = _('Failed task')
         verbose_name_plural = _('Failed tasks')
+        ordering = ['-stopped']
         proxy = True
 
 

django_q/signing.py

@@ -4,10 +4,12 @@
     import pickle
 
 from django.core import signing
+
 from django_q.conf import Conf
 
 BadSignature = signing.BadSignature
 
+
 class SignedPackage(object):
     """
     Wraps Django's signing module with custom Pickle serializer
@@ -41,4 +43,4 @@ def dumps(obj):
 
     @staticmethod
     def loads(data):
-        return pickle.loads(data)
+        return pickle.loads(data)

django_q/tasks.py

@@ -107,4 +107,3 @@ def _sync(task_id, pack):
     result_queue.put('STOP')
     cluster.monitor(result_queue)
     return task_id
-

docs/admin.rst

@@ -16,7 +16,7 @@ Uses the :class:`Success` proxy model.
 
 .. tip::
 
-    The maximum number of successful tasks can be set using the `save_limit` :ref:`configuration` option.
+    The maximum number of successful tasks can be set using the :ref:`save_limit` option.
 
 
 
@@ -63,5 +63,9 @@ Success
 
 Indicates the success status of the last scheduled task, if any.
 
+.. note::
+
+   if you have set the :ref:`save_limit` configuration option to not save successful tasks to the database, you will only see the failed results of your schedules.
+
 
 Uses the :class:`Schedule` model

docs/install.rst

@@ -77,6 +77,8 @@ compress
 Compresses task packages to Redis. Useful for large payloads, but can add overhead when used with many small packages.
 Defaults to ``False``
 
+.. _save_limit:
+
 save_limit
 ~~~~~~~~~~