我正在使用 ModelForm，我想用一個初始值填充我的 dataset_id 字段，該初始值將來自爭論中傳遞的“pid”變量。我已經嘗試了一些東西并附加了該代碼，但它不起作用views.pydef home(request, pid):    # if this is a POST request we need to process the form data    if request.method == 'POST':        # create a form instance and populate it with data from the request:        form = DelegateForm(request.POST)        # check whether it's valid:        if form.is_valid():            # process the data in form.cleaned_data as required            p = form.save()            # redirect to a new URL:            return HttpResponseRedirect('/')        # if a GET (or any other method) we'll create a blank form    else:         # Here I want to pass the value of "pid" to the dataset_id field so that when it renders it is populated with the value in the pid variable        form = DelegateForm(initial={'dataset_id': pid})    return render(request, 'add_delegate.html', {'dform': form, 'uid': pid})models.pyclass Delegate(models.Model):    dataset_id = models.CharField(max_length=255, null=True, blank=True)    first_name = models.CharField(max_length=255)    last_name = models.CharField(max_length=255, null=True, blank=True)    email = models.CharField(max_length=255, null=True, blank=True)    phone = models.IntegerField(null=True, blank=True)    company = models.CharField(max_length=255, null=True, blank=True)    designation = models.CharField(max_length=255, null=True, blank=True)    address = models.CharField(max_length=255, null=True, blank=True)    city = models.CharField(max_length=255, null=True, blank=True)    pincode = models.IntegerField(null=True, blank=True)    image_path = models.CharField(max_length=2083, null=True, blank=True)forms.py