python - How to pass a value in django select form? -

i creating invoice application. have model receivables as

class receivables(models.model):     user=models.foreignkey(settings.auth_user_model)     receivable_name=models.charfield(max_length=250)     receivable_address=models.charfield(max_length=250,blank=true)     receivable_email=models.charfield(max_length=250,blank=true)     receivable_telephone=models.charfield(max_length=250,blank=true)     receivable_vat=models.charfield(max_length=250,blank=true)     receivable_service_tax=models.charfield(max_length=250,blank=true)     receivable_pan=models.charfield(max_length=250,blank=true)      def __str__(self):         return self.user.receivable_name  

have model serviceinvoice as

class serviceinvoice(models.model):     user=models.foreignkey(user,related_name='invoice')         invoice_number=models.positiveintegerfield()     invoice_date = models.datefield(auto_now_add=true)     invoice_receivable=models.foreignkey(receivables)     total_amount=models.decimalfield(decimal_places=2,max_digits=20)     total_amountwithtax=models.decimalfield(decimal_places=2,max_digits=20)      def __str__(self):         return invoice_number 

form.py serviceinvoice model as

class createinvoiceform(forms.modelform):     class meta:         model=serviceinvoice         exclude=('user',) 

views.py form as

@login_required def createinvoice(request):     if request.method == 'post':         inv_form=createinvoiceform(data=request.post)         if inv_form.is_valid():             new_form=inv_form.save(commit=false)             new_form.user=request.user             new_form.save()             return httpresponse('invoice created')     else:         inv_form=createinvoiceform()     return render(request,'account/createinvoice.html',{'inv_form':inv_form}) 

now issues facing are:

1. rendered template not show receivalbe name instead shows self.user.receivalbe_name
2. how show receivalbe_name related logged in user?

second issue solved putting following in views.py:

inv_form=createinvoiceform()         inv_form.fields["invoice_receivable"].queryset=receivables.objects.filter(user=request.user)