Django Form use of user id - django

Question

The following code is working nicely:
class SelectTwoTeams(forms.Form):
campaignnoquery = UserSelection.objects.filter(user=349).order_by('-campaignno')[:1]
currentCampaignNo = campaignnoquery[0].campaignno
cantSelectTeams = UserSelection.objects.filter(campaignno=currentCampaignNo)
currentTeams = StraightredTeam.objects.filter(currentteam = 1).exclude(teamid__in=cantSelectTeams.values_list('teamselectionid', flat=True))
team_one = forms.ModelChoiceField(queryset = currentTeams)
team_two = forms.ModelChoiceField(queryset = currentTeams)
However, you can see that the user id is currently hardcoded into the filter as 349. I would like this to be the id of the user logged in. I know in the view I can use:
currentUser = request.user
currentUserID = currentUser.id
But this code does not work within the forms section. If anyone could point me in the correct direction that would be ideal.
When I follow the suggestion below using the following form I get an error saying: NameError: name 'currentUserID' is not defined
# coding=utf-8
from dwad.threadlocals import get_current_user
from django.db.models import Max
from django import forms
from straightred.models import StraightredTeam
from straightred.models import UserSelection
class SelectTwoTeams(forms.Form):
def save(self):
currentUser = get_current_user()
currentUserID = currentUser.id
campaignnoquery = UserSelection.objects.filter(user=currentUserID).order_by('-campaignno')[:1]
currentCampaignNo = campaignnoquery[0].campaignno
cantSelectTeams = UserSelection.objects.filter(campaignno=currentCampaignNo)
currentTeams = StraightredTeam.objects.filter(currentteam = 1).exclude(teamid__in=cantSelectTeams.values_list('teamselectionid', flat=True))
team_one = forms.ModelChoiceField(queryset = currentTeams)
team_two = forms.ModelChoiceField(queryset = currentTeams)
Many thanks, Alan.

Answer 1

One method is to use local.threading. I have used this solution on a number of Django installations to good use.
I know there are a number of different opinions whether this is a good or bad solution. I tend to fall into the category that it can be extremely good in the right circumstances.
To set it up, create a file called threadlocals.py:
try:
from threading import local
except ImportError:
from django.utils._threading_local import local
_thread_locals = local()
def get_current_user():
return getattr(_thread_locals, 'user', None)
class ThreadLocalsMiddleware(object):
def process_request(self, request):
_thread_locals.user = getattr(request, 'user', None)
Then, add this ThreadLocalsMiddleware class to your project's middleware in settings.py:
MIDDLEWARE_CLASSES = [
...
'myproject.threadlocals.ThreadLocalsMiddleware',
...
]
Now, all you need to do is call the method get_current_user() from anywhere in your project.
from myproject.threadlocals import get_current_user
class SelectTwoTeams(forms.Form):
def save(self):
# for example:
currentUser = get_current_user()
currentUserID = currentUser.id

Answer 2

Found this answer at Reddit.
It is very simple and it is working good in my case.
In your view you have to include some code like this:
if form.is_valid():
obj = form.save(commit=False)
obj.user = request.user # logged in user is available on a view func's `request` instance
obj.save() # safe to save w/ user in tow