Signed In After Signup

Part of the Users and Accounts section of Coddy's Django journey. Lesson 5 of 16.

A new user signs up, then has to type the password they chose seconds ago on the login page. The view can sign them in itself.

login(request, user) from django.contrib.auth starts a session for the user you hand it, the same session LoginView starts after it checks a password. login() checks nothing, so call it only for a user your code has already trusted. A game site signs a player in when they open the link from their welcome email:

from django.contrib.auth import login


def welcome(request, token):
    player = get_object_or_404(Player, welcome_token=token)
    login(request, player.user)
    return redirect("games:lobby")

In your signup view, the trusted user is the one form.save() returns.

Challenge

Easy

After a valid signup, the new user is signed in and lands on /.
A signup the form refuses signs nobody in.

Press Run, open /signup/ and make an account: the header says Signed in as and your name.

Try it yourself

from django.contrib.auth.forms import UserCreationForm
from django.shortcuts import get_object_or_404, redirect, render

from .forms import NoteForm
from .models import Note


def note_list(request):
    notes = Note.objects.all()
    return render(request, "notes/note_list.html", {"notes": notes})


def note_detail(request, pk):
    note = get_object_or_404(Note, pk=pk)
    return render(request, "notes/note_detail.html", {"note": note})


def note_create(request):
    if request.method == "POST":
        form = NoteForm(request.POST)
        if form.is_valid():
            note = form.save()
            return redirect("notes:detail", pk=note.pk)
    else:
        form = NoteForm()
    return render(request, "notes/note_form.html", {"form": form})


def note_edit(request, pk):
    note = get_object_or_404(Note, pk=pk)
    if request.method == "POST":
        form = NoteForm(request.POST, instance=note)
        if form.is_valid():
            form.save()
            return redirect("notes:detail", pk=note.pk)
    else:
        form = NoteForm(instance=note)
    return render(request, "notes/note_form.html", {"form": form, "note": note})


def note_delete(request, pk):
    note = get_object_or_404(Note, pk=pk)
    if request.method == "POST":
        note.delete()
        return redirect("notes:list")
    return render(request, "notes/note_confirm_delete.html", {"note": note})


def signup(request):
    if request.method == "POST":
        form = UserCreationForm(request.POST)
        if form.is_valid():
            form.save()
            return redirect("login")
    else:
        form = UserCreationForm()
    return render(request, "notes/signup.html", {"form": form})