Django传递外键形成

Django passing foreign key to form

我刚认识姜戈。

我需要从请求中获取ID，当创建表单时，我希望它从该值中获取complaintid字段的值，从表单本身中获取其余值。

型号.py

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class Complaint(models.Model):
complaintid= models.AutoField(primary_key=True)
dateofcomplaint=models.DateTimeField(auto_now=False, auto_now_add=True)
content = models.TextField()
policestation= models.CharField(max_length=120)
location=models.TextField()

def __unicode__(self):
return unicode(self.complaintid)
def __str__(self):
return self.complaintid
def get_absolute_url(self):
return reverse("crimefiles:detail", kwargs={"id":self.complaintid})

class Fir(models.Model):
firid=models.CharField(max_length=10,primary_key=True)
complaintid=models.ForeignKey(Complaint,default=None)
signedby= models.CharField(max_length=20)
content=models.TextField(default="First Information Report")

def __unicode__(self):
return self.firid

def __str__(self):
return self.firid

视图.py

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def fir_create(request,id=None):
form =FirForm(request.POST or None)
if form.is_valid():
instance=form.save(commit=False)
instance.save()
messages.success(request,"sucessfully Created")
return HttpResponseRedirect()
context={
"form":form
}
return render(request,"fir_form.html",context)

号

表格.py

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class FirForm(forms.ModelForm):
class Meta:
model=Fir
fields=[
"firid",
"signedby",
"content"]