Django Celery throwing runtime warnings for naive times

[heidi]

  
I run an online game with Django 1.6 and Celery 3.1.11. Kombu is 3.0.15.

Recently I had problems with Celery and DST, so I decided to run the whole 
site on UTC and save myself the bother of worrying about timezones.

The relevant parts of my settings.py:

TIME_ZONE = 'UTC'
USE_TZ = True
CELERY_ENABLE_UTC = True
CELERY_TIMEZONE = 'UTC'

Now, whenever I send *any* delayed task, I see a bunch of RuntimeWarnings 
that complain about naive datetimes. I went into my settings.py and turned 
this into an exception, and this is the traceback that resulted:

[2014-04-18 15:03:49,748: INFO/MainProcess] Received task: sometask[sometaskid] 
eta:[2014-04-19 00:33:32.410032+00:00][2014-04-18 15:03:50,130: 
ERROR/MainProcess] Error in timer: RuntimeWarning(u'DateTimeField TaskState.eta 
received a naive datetime (2014-04-18 17:50:19.547046) while time zone support 
is active.',)Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/kombu/async/timer.py", line 171, 
in apply_entry
entry()
  File "/usr/local/lib/python2.7/dist-packages/kombu/async/timer.py", line 64, 
in __call__return self.fun(*self.args, **self.kwargs)
  File "/usr/local/lib/python2.7/dist-packages/kombu/async/timer.py", line 132, 
in _reschedulesreturn fun(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/celery/events/snapshot.py", line 
73, in capture
self.state.freeze_while(self.shutter, clear_after=self.clear_after)
  File "/usr/local/lib/python2.7/dist-packages/celery/events/state.py", line 
421, in freeze_whilereturn fun(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/celery/events/snapshot.py", line 
70, in shutter
self.on_shutter(self.state)
  File "/usr/local/lib/python2.7/dist-packages/djcelery/snapshot.py", line 145, 
in on_shutter
_handle_tasks()
  File "/usr/local/lib/python2.7/dist-packages/djcelery/snapshot.py", line 139, 
in _handle_tasks
self.handle_task(task)
  File "/usr/local/lib/python2.7/dist-packages/djcelery/snapshot.py", line 105, 
in handle_task
task_id=uuid, defaults=defaults)
  File "/usr/local/lib/python2.7/dist-packages/djcelery/snapshot.py", line 128, 
in update_task
obj.save()
  File "/usr/local/lib/python2.7/dist-packages/djcelery/models.py", line 358, 
in save
super(TaskState, self).save(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/django/db/models/base.py", line 
545, in save
force_update=force_update, update_fields=update_fields)
  File "/usr/local/lib/python2.7/dist-packages/django/db/models/base.py", line 
573, in save_base
updated = self._save_table(raw, cls, force_insert, force_update, using, 
update_fields)
  File "/usr/local/lib/python2.7/dist-packages/django/db/models/base.py", line 
635, in _save_table
forced_update)
  File "/usr/local/lib/python2.7/dist-packages/django/db/models/base.py", line 
679, in _do_updatereturn filtered._update(values) > 0
  File "/usr/local/lib/python2.7/dist-packages/django/db/models/query.py", line 
507, in _updatereturn query.get_compiler(self.db).execute_sql(None)
  File 
"/usr/local/lib/python2.7/dist-packages/django/db/models/sql/compiler.py", line 
975, in execute_sql
cursor = super(SQLUpdateCompiler, self).execute_sql(result_type)
  File 
"/usr/local/lib/python2.7/dist-packages/django/db/models/sql/compiler.py", line 
771, in execute_sql
sql, params = self.as_sql()
  File 
"/usr/local/lib/python2.7/dist-packages/django/db/models/sql/compiler.py", line 
940, in as_sql
val = field.get_db_prep_save(val, connection=self.connection)
  File 
"/usr/local/lib/python2.7/dist-packages/django/db/models/fields/__init__.py", 
line 353, in get_db_prep_save
prepared=False)
  File 
"/usr/local/lib/python2.7/dist-packages/django/db/models/fields/__init__.py", 
line 914, in get_db_prep_value
value = self.get_prep_value(value)
  File 
"/usr/local/lib/python2.7/dist-packages/django/db/models/fields/__init__.py", 
line 906, in get_prep_valueRuntimeWarning)RuntimeWarning: DateTimeField 
TaskState.eta received a naive datetime (2014-04-18 17:50:19.547046) while time 
zone support is active.


As you can see, none of the traceback is due to my code, so I do not know 
how to proceed. I could merely leave the warnings in (if I recall 
correctly, Celery defaults time offsets to the CELERY_TIMEZONE in 
settings.py, and this is what I want anyway) but my OCD is screaming out at 
me to get this fixed. Plus, I can't ctrl-F to find any warning that *are*due to 
my code.

Any advice?

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Database update weirdness

[heidi]

 

I am developing a game in which the quantity of rebels updates after a turn 
change. Rebels are represented as integers from 0 to 100 in the (MySQL) 
database.

When I save, this happens:

print world.rebels>>> 0

rebstab = 0
world.rebels += rebstab
world.save()
print world.rebels>>> 0

However, when I use F() expressions (as I gather I should to prevent race 
conditions), this happens:

print world.rebels>>> 0

rebstab = 0
world.rebels = F('rebels') + rebstab
world.save()
print world.rebels>>> 100

What's going on?

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Re: Weird deletions in Django

[heidi]

On Tuesday, February 4, 2014 6:37:55 AM UTC, Avraham Serour wrote:
>
> Sending an email can be faulty, I would use a logger and write the 
> stacktrace 
> Also, is it possible that something other than you django application it's 
> agreeing the database?
>
I have a forum accessing the database but they have completely separate 
tables so I can't see how that would affect things. 

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Collapsible inlines in Django Admin

[heidi]

 

Is there an up-to-date option for allowing collapsible inlines in the 
Django admin site?

I've looked at https://code.djangoproject.com/ticket/494, How to add 
'collapse' to a Django 
StackedInlineand
 Grappelli, but none of them seem to work for Django 1.6.1.

Any suggestions?

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Weird deletions in Django

[heidi]

 

I have a web game in which an alliance can have multiple members. This is 
represented by a foreign key field on each member's class (seeing as a 
member can only be part of one alliance).

I've been getting weird instances of worlds and alliances being deleted. I 
narrowed it down to where I was sure the worlds were getting deleted only 
because the alliances were, so I removed the cascade deletion. However, I 
still cannot figure out for the life of me *why* the alliances are being 
deleted in the first place.

I overrode the custom delete method like so:
class Alliance(models.Model): 
... 
def delete(self, *args, **kwargs): 
mail.send_mail('Alliance Deletion', '%s has been deleted.' \ 
% self.alliance_name, 'f...@email.com', ['t...@email.com']) 
super(Alliance, self).delete(*args, **kwargs)


However, at least one alliance has been deleted where I did not get an 
email sent to me. I gather this is because I must be calling delete() from 
a QuerySet, but I have been over my code with a fine-toothed comb and there 
is precisely one occasion where I call delete() on any alliance instance, 
and it's not over a QuerySet.

Is there a way to track down what is causing this, or to find out what 
function has executed the delete of an object?

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Re: Password reset not working.

[heidi]

Thank you so much! Fixed now. How I missed that I have no idea.

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Password reset not working.

[heidi]

I'm using Django 1.6.1, and password reset is not working. When users enter 
their email, 502 occurs and this is sent to me:

Traceback (most recent call last):

  File 
"/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 
114, in get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)

  File "/usr/local/lib/python2.7/dist-packages/django/utils/decorators.py", 
line 99, in _wrapped_view
response = view_func(request, *args, **kwargs)

  File 
"/usr/local/lib/python2.7/dist-packages/django/contrib/auth/views.py", line 
158, in password_reset
form.save(**opts)

  File 
"/usr/local/lib/python2.7/dist-packages/django/contrib/auth/forms.py", line 
256, in save
email = loader.render_to_string(email_template_name, c)

  File "/usr/local/lib/python2.7/dist-packages/django/template/loader.py", 
line 164, in render_to_string
return t.render(Context(dictionary))

  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", 
line 140, in render
return self._render(context)

  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", 
line 134, in _render
return self.nodelist.render(context)

  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", 
line 840, in render
bit = self.render_node(node, context)

  File "/usr/local/lib/python2.7/dist-packages/django/template/base.py", 
line 854, in render_node
return node.render(context)

  File 
"/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py", 
line 447, in render
six.reraise(*exc_info)

  File 
"/usr/local/lib/python2.7/dist-packages/django/template/defaulttags.py", 
line 433, in render
url = reverse(view_name, args=args, kwargs=kwargs, 
current_app=context.current_app)

  File 
"/usr/local/lib/python2.7/dist-packages/django/core/urlresolvers.py", line 
509, in reverse
return iri_to_uri(resolver._reverse_with_prefix(view, prefix, *args, 
**kwargs))

  File 
"/usr/local/lib/python2.7/dist-packages/django/core/urlresolvers.py", line 
429, in _reverse_with_prefix
(lookup_view_s, args, kwargs, len(patterns), patterns))

NoReverseMatch: Reverse for 'auth_password_reset_confirm' with arguments 
'('MQ', u'3op-83ceb0bee07385a12e2a')' and keyword arguments '{}' not found. 
0 pattern(s) tried: []


Relevant parts of urls.py:

url(r'^login/$',
auth_views.login,
{'template_name': 'registration/login.html'},
name='auth_login'),
url(r'^logout/$',
auth_views.logout,
{'template_name': 'registration/logout.html'},
name='auth_logout'),
url(r'^password/change/$',
auth_views.password_change,
name='auth_password_change'),
url(r'^password/change/done/$',
auth_views.password_change_done,
name='password_change_done'),
url(r'^password/reset/$',
auth_views.password_reset,
name='auth_password_reset'),

url(r'^password/reset/(?P[0-9A-Za-z_\-]+)/(?P[0-9A-Za-z]{1,13}-[0-9A-Za-z]{1,20})/$',
auth_views.password_reset_confirm,
name='password_reset_confirm'),
url(r'^password/reset/complete/$',
auth_views.password_reset_complete,
name='auth_password_reset_complete'),
url(r'^password/reset/done/$',
auth_views.password_reset_done,
name='password_reset_done'),

As far as I can see I have it correctly updated for the latest version of 
Django. What's wrong, and how do I fix it?

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Upload files

[Heidi Bustamante]

Hello, anyone has an example of how to upload images, I also doubt if
the same thing to upload any files (pdf, zip, etc.)?


Heidi

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Get number of the day

[Heidi Bustamante]

Hello
A date anyone, how to get the number of the day that corresponds

Thanks

Heidi

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