Thanks for the post Tom, I notice that the FormMixin class is from
django.views.generic.edit and I am confused to how to use it so I gave it a
try with
#views.py
class PremisesUpdateView(LoginRequiredMixin, FormMixin):
form_class = PremisesForm
model = Premises
success_url = reverse_lazy('premlv')
def get_form_kwargs(self):
kwargs = super(PremisesUpdateView, self).get_form_kwargs()
kwargs['heating_user'] = self.request.user
return kwargs
#forms.py
class PremisesUpdateView(LoginRequiredMixin, FormMixin):
form_class = PremisesForm
model = Premises
success_url = reverse_lazy('premlv')
def get_form_kwargs(self):
kwargs = super(PremisesUpdateView, self).get_form_kwargs()
kwargs['heating_user'] = self.request.user
return kwargs
however a problem now occurs with my urls.py , because not i get an error
'type object 'PremisesCreateView' has no attribute 'as_view'
#urls.py
),
url(
regex=r'premuv/(?P<pk>\d+)/$',
view=PremisesUpdateView.as_view(),
name="premuv"
),
do you know what I would substitute as_view() for ,
thanks for the grounding in these CBV, I am using them ala 2 scoops of
django!
On Thursday, 30 May 2013 11:14:27 UTC, Tom Evans wrote:
>
> On Thu, May 30, 2013 at 9:57 AM, tony gair <tonyt...@gmail.com<javascript:>>
> wrote:
> >
> > I am using CBV / django braces for authentication. My user authorisation
> > model inherits abstractuser and adds a few fields which are foreign keys
> to
> > two other models organisation and premises.
> >
> > When a form initialises I want to be able to examine the details of the
> user
> > logged in , look to see if they are a is_superuser or is_staff and
> occupy
> > my organisation and premises form fields accordingly using the values
> stored
> > as foreign keys in the logged on and authenticated user.
> >
> > My main problem at the moment is that I get a KeyError for the line
> > 'self.user=kwargs.pop('user')' centered on 'user'
> >
> >
> > #heating/forms.py
> > from django import forms
> > from .models import Organisation, Premises, Heating_User, Room, Heater
> >
> > class HeatingUserForm ( forms.ModelForm):
> >
> > def __init__(self, *args, **kwargs):
> > self.user=kwargs.pop('User')
> > super(HeatingUserForm, self).__init__(*args, **kwargs)
> > if self.user.is_superuser:
> > self.fields['premises'].queryset = Premises.objects.all()
> > elif self.user.is_staff:
> > self.fields['premises'].queryset =
> > Premises.objects.filter(organisation=self.user.organisation)
> > else:
> > self.fields['premises'].queryset =
> > Premises.objects.filter(id=self.user.premises)
> >
> >
> > #models.py
> > from django.conf import settings
> > from django.core.urlresolvers import reverse
> > from django.db import models
> > from django.contrib.auth.models import AbstractUser
> >
> > class Heating_User (AbstractUser):
> > jobtitle = models.CharField(max_length=255)
> > organisation = models.ForeignKey(Organisation, null=True)
> > premises = models.ForeignKey(Premises, null= True)
> > def __unicode__(self):
> > return self.username
> > def get_absolute_url(self):
> > return reverse('users-detail', kwargs={'pk':self.pk})
> > #end of files
> >
> >
> > can anyone see where I am going wrong here?
> >
>
> 'user' is not an argument that is supplied to every form that is
> initialised, I was trying to explain this to you yesterday.
>
> Yesterday you said are using a CBV. A CBV that deals with forms
> probably uses the FormMixin to provide it's form handling:
>
>
> https://docs.djangoproject.com/en/1.5/ref/class-based-views/mixins-editing/#django.views.generic.edit.FormMixin
>
>
> FormMixin defines various functions and attributes on the class, which
> you can customise in your derived version of the class to give
> specialised effects. The one you'll need to change in order to pass
> user to the form constructor is get_form_kwargs(). You will want to do
> something like this:
>
> class MyClassBasedView(UpdateView):
> form_class = HeatingUserForm
> def get_form_kwargs(self):
> kwargs = super(MyClassBasedView, self).get_form_kwargs()
> kwargs['user'] = self.request.user
> return kwargs
>
> Then, when your class based view instantiates your form, it will
> provide the correct arguments.
>
> Cheers
>
> Tom
>
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