Parent view seen as a string in template

[VivienGiraud]

Hi,
I'm trying to register user via django-unicorn but I'm having issue with session:

File "REDACTED/unicorn/app/components/email.py", line 57, in register_email  
    login(self.request, user)  
  File "REDACTED/.venv/lib/python3.9/site-packages/django/contrib/auth/__init__.py", line 102, in login  
    if SESSION_KEY in request.session:  
AttributeError: 'NoneType' object has no attribute 'session'

Here is the code I'm running:

def register_email(self):  # TODO: Add rate limiting
            pwd = get_random_string(32)
            user = CustomUser.objects.create_user(email=self.email, password=pwd)
            user = authenticate(email=self.email, password=pwd)
            login(self.request, user)
            print("logged")
            return redirect('/register')

Hope this helps.

[adamghill]

It looks like self.request is None. Is this a child component maybe? I think there is an issue with getting the request in that instance: #238. Otherwise, if you can fork my example project replicating the issue that would be super helpful. Thanks!

[VivienGiraud]

Thanks @adamghill,
I forgot the parent=view paremeter, anyway it still does not works I have this error now :

  File "REDACTED/.venv/lib/python3.9/site-packages/django_unicorn/templatetags/unicorn.py", line 112, in render
    component_id = f"{self.parent.component_id}:{self.component_name}"
AttributeError: 'str' object has no attribute 'component_id'

I tried adding a id=0 but it does not change. I know it's crap but it was just for test.

My code is barely:

{% extends "base.html" %}

{% load unicorn %}

{% block content %}
<SOME HTML>
   unicorn 'email' parent=view %}

The email.html template is:

<div class="mt-10 sm:mt-12">
    <div class="sm:flex">
      <div class="min-w-0 flex-1">
        <label for="email" class="sr-only">Email address</label>
        <input id="email" unicorn:model="email" type="email" placeholder="Enter your email" class="block w-full px-4 py-3 rounded-md border-0 text-base text-gray-900 placeholder-gray-500 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-cyan-400 focus:ring-offset-gray-900">
      </div>
    </div>
    <div class="mt-3">
      <button unicorn:click="register_email" class="block w-full py-3 px-4 rounded-md shadow bg-gradient-to-r from-teal-500 to-cyan-600 text-white font-medium hover:from-teal-600 hover:to-cyan-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-cyan-400 focus:ring-offset-gray-900">Start free trial</button>
    </div>
    <p class="mt-3 text-sm text-gray-300 sm:mt-4">Start your free 14-day trial, no credit card necessary. By providing your email, you agree to our <a href="/terms" class="font-medium text-white">terms or service</a>.</p>
</div>

And the Python part:

from django_unicorn.components import UnicornView
from django.shortcuts import redirect
from django.contrib.auth import login, authenticate
from django.utils.crypto import get_random_string

from app.models import CustomUser


class EmailView(UnicornView):
    email = ""
    def register_email(self):
        pwd = get_random_string(32)
        user = CustomUser.objects.create_user(email=self.email, password=pwd)
        user = authenticate(email=self.email, password=pwd)
        login(self.request, user)
        print("logged")
        return redirect('/register')

[VivienGiraud]

Hi @adamghill ,
I checked the code but I did understood why this error happened.
Do you have any idea?

[adamghill]

It looks like parent is a string when Unicorn is expecting it to be an instance of UnicornView. Based on {% unicorn 'email' parent=view %} I would assume that view maybe in your context is a string?

It's challenging to diagnose without the whole context. If you fork my repo and reproduce your issue or provide a sample repo I can help troubleshoot easier.

For an example of a nested component:

• the parent: https://github.com/adamghill/django-unicorn/blob/master/example/unicorn/templates/unicorn/nested/table.html#L19
• a child: https://github.com/adamghill/django-unicorn/blob/master/example/unicorn/templates/unicorn/nested/filter.html

[VivienGiraud]

Thanks for your explanation, as a matter of fact view seems to be a string.
I didn't find the way to launch the example unfortunatly, could you help me?
BTW where does view comes from?

[VivienGiraud]

Hi @adamghill
Here it is, the very smallest I can do to reproduce it.
I'm definitely sure I miss something, but what?
https://github.com/VivienGiraud/django-unicorn-crash
Hope this helps

[adamghill]

Thanks, I'll take a look at this as soon as possible!

[adamghill]

Ok, so at least based on your sample code the components aren't nested, so maybe my initial thought was incorrect. I made a PR at VivienGiraud/django-unicorn-crash#1 which fixes the issues in your sample repo and everything loads for me -- hopefully it all makes sense. Closing this for now, but re-open if needed.

[VivienGiraud]

Holy crap!
The real problem I had since the beggining was the missing unicorn in the settings.py...
I thought that only django_unicorn was needed :/
Thanks a lot @adamghill !

[adamghill]

Yep! Sorry I took us down the wrong path in the beginning! Let me know if you run into other issues going forward.