I'm a newbie. And I just started writing a django project. It is called the iRayProject and consists of two applications iRay_user_authentication and iRay_working_with_notes: project structure here

iRay_user_authentication - this is a standard django app for registration

Here is his urls.py

from django.urls import path
from .views import login_user, registration

urlpatterns = [
    path('', login_user, name='login_user'),
    path('registration', registration, name='registration'),
]

In views.py registered user using redirect I want to send to the second application of the project

from django.shortcuts import render, redirect
from django.contrib.auth.forms import UserCreationForm, AuthenticationForm
from django.contrib.auth.models import User
from django.db import IntegrityError
from django.contrib.auth import login, logout, authenticate
from ..iRay_working_with_notes.views import list_notes


def login_user(request):
    if request.method == 'GET':
        return render(request, 'iRay_user_authentication/login.html', {'form': AuthenticationForm})


def registration(request):
    if request.method == 'GET':
        return render(request, 'iRay_user_authentication/registration.html', {'form': UserCreationForm})
    else:
        if '_guest' in request.POST:
            pass
        else:
            if request.POST['password1'] == request.POST['password2']:
                try:
                    user = User.objects.create_user(request.POST['username'], password=request.POST['password1'])
                    user.save()
                    login(request, user)
                    return redirect(list_notes)
                except IntegrityError:
                    return render(request, 'iRay_user_authentication/registration.html', {'form': UserCreationForm,
                                                                                          'error': 'name is busy '
                                                                                          })
            else:
                return render(request, 'todo_app/registration.html', {'form': UserCreationForm,
                                                                      'error': 'passwords not math'})

But when trying to import a function from the second views.py

from django.shortcuts import render


def list_notes(request):
    return render(request, 'iRay_working_with_notes/list_notes.html')

I get an error:

ImportError: attempted relative import beyond top-level package

And I found a lot of theoretical information about why this error occurs. But I still couldn 't figure out if there is an easy way for relative or absolute import , or I just didn 't structure my project correctly ??

CodePudding user response：

1. import is wrong

from ..iRay_working_with_notes.views import list_notes

should be

from iRay_working_with_notes.views import list_notes

2. redirect needs view name from the urls-pattern:

redirect('name-of-my-view-pattern')

So please create a url-pattern entry for the list_notes view and give the pattern name as parameter to the redirect.

Why? because a redirect is telling the browser on the client side to load the target redirect page, so it needs an url (that is generated by django via the url-pattern), as the target page will be called from the browser.

Technically of course you can import a view and call it from another module directly as it is just a python function - but that is not a http redirect (and would not change the url in the browser to the redirected page) and additionally that is not really the idea of the django request/response architecture.