I have, for the development server in a Django project, a Django view where a 500 is generated, apparently before the view can run an initial debug output. The output from the development server, per intended Ajax hit, is:
Internal Server Error: /ajax/say
Traceback (most recent call last):
File "/Library/Python/2.7/site-packages/django/core/handlers/base.py", line 114, in get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/Library/Python/2.7/site-packages/django/views/decorators/csrf.py", line 57, in wrapped_view
return view_func(*args, **kwargs)
File "/Users/jonathan/unixytalk/unixytalk/views.py", line 71, in ajax_say
request.session, room = room)):
File "/Library/Python/2.7/site-packages/django/db/models/manager.py", line 163, in filter
return self.get_queryset().filter(*args, **kwargs)
File "/Library/Python/2.7/site-packages/django/db/models/query.py", line 590, in filter
return self._filter_or_exclude(False, *args, **kwargs)
File "/Library/Python/2.7/site-packages/django/db/models/query.py", line 608, in _filter_or_exclude
clone.query.add_q(Q(*args, **kwargs))
File "/Library/Python/2.7/site-packages/django/db/models/sql/query.py", line 1198, in add_q
clause = self._add_q(where_part, used_aliases)
File "/Library/Python/2.7/site-packages/django/db/models/sql/query.py", line 1234, in _add_q
current_negated=current_negated)
File "/Library/Python/2.7/site-packages/django/db/models/sql/query.py", line 1125, in build_filter
clause.add(constraint, AND)
File "/Library/Python/2.7/site-packages/django/utils/tree.py", line 104, in add
data = self._prepare_data(data)
File "/Library/Python/2.7/site-packages/django/db/models/sql/where.py", line 79, in _prepare_data
value = obj.prepare(lookup_type, value)
File "/Library/Python/2.7/site-packages/django/db/models/sql/where.py", line 352, in prepare
return self.field.get_prep_lookup(lookup_type, value)
File "/Library/Python/2.7/site-packages/django/db/models/fields/__init__.py", line 1079, in get_prep_lookup
return super(IntegerField, self).get_prep_lookup(lookup_type, value)
File "/Library/Python/2.7/site-packages/django/db/models/fields/__init__.py", line 369, in get_prep_lookup
return self.get_prep_value(value)
File "/Library/Python/2.7/site-packages/django/db/models/fields/__init__.py", line 1073, in get_prep_value
return int(value)
TypeError: int() argument must be a string or a number, not 'SessionStore'
[18/Jun/2014 11:34:28] "POST /ajax/say HTTP/1.1" 500 111136
The urlpatterns has:
url(r'^ajax/say/?$', 'unixytalk.views.ajax_say'),
The source for the function itself is:
#@ajax_login_required
@csrf_exempt
def ajax_say(request):
print 'Reached here!'
if not request.session.get('identifier', None):
session = Session()
session.save()
request.session['identifier'] = session.id
#print repr(request)
#conversation = request.POST['conversation']
#if not request.user in conversation.users:
#return
try:
print repr(get_post(request))
text = get_post(request)['params']['text']
print 'Door 1'
print repr(text)
except KeyError:
print 'Door 2'
return HttpResponse(json.dumps([]), mimetype='application/json')
except TypeError:
print 'Door 3'
return HttpResponse(json.dumps([]), mimetype='application/json')
if get_post(request)['params'].get('time', None) != None:
room = Room.objects.filter(identifier =
get_post(request)['params']['room'])[0]
if len(IndividualContribution.objects.filter(session =
request.session, room = room)):
instance = IndividualContribution.objects.filter(session =
request.session, room = room)[0]
else:
instance = IndividualContribution(room = room, session =
request.session['identifier'])
instance.text = text
instance.timestamp = get_post(request)['params']['timestamp']
instance.save()
return HttpResponse(json.dumps([]), mimetype='application/json')
This function is a work in progress, and intended for further refinement.
The development server's console output shows one or two hits without a server error, before displaying the error output above. (The page that references /ajax/say is supposed to give a brain dump every second, and what happens is an initial bit out putout without the error, then a 500 every second after that.) The non-error output is:
Inner Sanctum ~/unixytalk $ python manage.py runserver
Validating models...
0 errors found
June 18, 2014 - 11:34:26
Django version 1.6.2, using settings 'unixytalk.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.
Reached here!
{u'params': {u'room': u'ee8696bab4df6a68e0f3', u'time': 1403109268206}}
Door 2
Reached here!
{"monologues": {}, "sessions": []}
{"monologues": {}, "sessions": []}
/Library/Python/2.7/site-packages/django/http/response.py:330: DeprecationWarning: Using mimetype keyword argument is deprecated, use content_type instead
super(HttpResponse, self).__init__(*args, **kwargs)
[18/Jun/2014 11:34:28] "POST /ajax/listen HTTP/1.1" 200 34
[18/Jun/2014 11:34:28] "POST /ajax/listen HTTP/1.1" 200 34
{u'params': {u'text': u'aaaa', u'room': u'ee8696bab4df6a68e0f3', u'time': 1403109268212}}
Door 1
u'aaaa'
[18/Jun/2014 11:34:28] "POST /ajax/say HTTP/1.1" 200 2
I'm guessing I'm trying to create a session object with a string or something non-integer for the ID, or something like that, i.e. that the first run creates pollution that affects the second and subsequent goes. "Session" is not Django's session, but an empty (Django model) class that is used to create a unique integer key.
--UPDATE--
In response to dhana, the models defined for this project are:
from django.contrib.auth.models import User
from django.db import models
from unixytalk import settings
class Room(models.Model):
identifier = models.CharField(max_length =
settings.MAX_HASH_LENGTH, null = True, blank = True)
class Session(models.Model):
pass
class IndividualContribution(models.Model):
room = models.ForeignKey(Room)
session = models.IntegerField()
text = models.TextField()
timestamp = models.FloatField()
username = models.TextField()
I think your error is here
instance = IndividualContribution.objects.filter(session =
request.session, room = room)[0]
when you querying the data,It gives this error
TypeError: int() argument must be a string or a number, not 'SessionStore'
It is asking string or number but you providing SessionStore.
If you provide IndividualContribution model details I will give the more details.