django-views

问题 I have some fixed number let say it is num = 1000 Now I have field which need to be sum of the object.id and num. I need this in save() something like below. def save(self, *args, **kwargs): num = 1000 self.special = self.id + num super(MyModel, self).save(*args, **kwargs) But self.id is known after save and field named special is required. How to get self.id? 回答1: First of all? Is the number you're trying to add a fixed number? If so, why do you have to store it in the db at all? You may

问题 I am creating a simple rest api using django REST framework. I have successfully got the response by sending GET request to the api but since I want to send POST request, the django rest framework doesn't allow POST request by default. As in image(below) only GET,HEAD, OPTIONS are allowed but not the POST request The GET and POST methods inside of views.py from django.shortcuts import render from rest_framework.views import APIView from rest_framework.response import Response from profiles

问题 I am creating a simple rest api using django REST framework. I have successfully got the response by sending GET request to the api but since I want to send POST request, the django rest framework doesn't allow POST request by default. As in image(below) only GET,HEAD, OPTIONS are allowed but not the POST request The GET and POST methods inside of views.py from django.shortcuts import render from rest_framework.views import APIView from rest_framework.response import Response from profiles

问题 I am having a Json field in my models as - class Product(models.Model): ... detailed_stock = JSONField(load_kwargs={'object_pairs_hook': collections.OrderedDict},default=dict) I am having values in my database like - { "total":0, "5[1]":0 } I am trying to filter objects with total = 0, for that I tried - Product.objects.filter(detailed_stock__total = 0) but it throws error - Unsupported lookup 'total' for JSONField or join on the field not permitted. as per the documentation the following

问题 I have a class based view class HomePage(View): def get(self, request): return HttpResponse('<p>This is content.</p>') and url-pattern defined as below: urlpatterns = patterns('', url(r'^$', HomePage.as_view()), ) To this pattern resolves to current view function, I wrote a test like this: class HomePageTest(TestCase): def test_root_url_resolves_to_home_page_view(self): found = resolve('/') self.assertIsInstance(found.func, HomePage) By running this unittest I am getting following error: self

问题 Hello Everyone I am a beginner in Django and I have created one webpage where the user is able to search/Filter results and for this, I have used the Django-filter concept. Now my requirement is user should be able to download that filtered data. To achieve this I have created one separate View class with a download name and trying to pass the same Filter Class Queryset but with no luck, it is giving me all model data (records). Please find the Post: how to use Django filtered class data to 2

问题 I'm trying to create an object in Django using the standard class based views and form libraries. Three fields in my form are dependent upon a domain variable captured from the URL pattern. My questions are: How do I access domain within CreateSubscription so that I can set Subscription.site to Site.objects.filter(domain=domain)[0] ? How do I limit the dropdown fields rendered from CreateSubscriptionForm so that plan displays only SubscriptionPlan.objects.filter(site=Site.objects.filter

问题 I need to check if a user exists before saving a form. The fields are name, surname, and a role which can have one or many values. How can I do that? def save(self, commit=True): profile = super(ProfileForm, self).save(commit=False) first_name = self.cleaned_data['first_name'] surname = self.cleaned_data['surname'] role = self.cleaned_data['role'] if Profile.objects.filter(first_name=self.cleaned_data['first_name'], surname=self.cleaned_data['surname']).exists() raise forms.ValidationError(

问题 I'd like to redirect to a detail view after I successfully submitted a form and created the object. My view.py class ObjectCreateView(CreateView): model = Object form_class = ObjectCreateForm template_name = 'frontend/base/object_create.html' def get(self, request, *args, **kwargs): form = ForecastConfigurationCreateForm() form.fields['status'] = ModelChoiceField(queryset=ObjectStatus.get_object_status_list(self)) return render(request, self.template_name, {'form': form}) def post(self,

问题 I am trying to make a website that registers users with first name, last name, email, and password. I have tried writing this form and using it in the views from django import forms from django.contrib.auth.models import User from django.contrib.auth.forms import UserCreationForm class RegisterationForm(UserCreationForm): email = forms.EmailField(required=True) class Meta: model = User fields = ( 'first_name', 'last_name', 'email', 'password1', 'password2', ) def save(self, commit=True): user