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Python Django Class-based Views Classy Views CRUDs

Josh Allen
PLUS
Josh Allen
Courses Plus Student 14,544 Points
Posted by Josh Allen
Josh Allen
Courses Plus Student 14,544 Points

And, lastly, create the article_confirm_delete.html template. Seriously stuck, error messages not helping.

Where am I going wrong here? Been stuck on this question for quite some time. Thanks in advance!

articles/views.py 
from django.views.generic import ListView, DetailView, CreateView, UpdateView, DeleteView
from django.core.urlresolvers import reverse_lazy
from . import models


class ArticleList(ListView):
    model = models.Article


class ArticleDetail(DetailView):
    model = models.Article

class ArticleCreate(CreateView): 
    fields = ('title', 'body', 'author', 'published')
    model = models.Article

class ArticleUpdate(UpdateView): 
    fields = ('title', 'body', 'author', 'published')
    model = models.Article

class ArticleDelete(DeleteView): 
    model = models.Article
    success_url = reverse_lazy("articles:list")
articles/templates/articles/article_form.html 
{% block body_content %}
<form method='POST'>
  {% csrf_token %}
  {{ form.as_p }}
  <input type="submit" class="btn btn-primary" value="Save">
</form>
{% endblock %}
articles/templates/articles/article_confirm_delete.html 
{% block body_content %}
<h1>{{ article.title }}</h1>
<form method='POST'>
  {% csrf_token %}
    {{ form.as_p }}
  <input type="submit" class="btn btn-danger" value="Delete"><a href="{% url 'articles:detail' pk = article.pk %}">Cancel</a>
</form>
{% endblock %}

1 Answer

Alex Koumparos
seal-mask
.a{fill-rule:evenodd;}techdegree
Alex Koumparos
Python Development Techdegree Student 36,887 Points
Alex Koumparos
.a{fill-rule:evenodd;}techdegree
Alex Koumparos
Python Development Techdegree Student 36,887 Points

Hi Josh,

I agree the error messages were not very helpful. It turns out that your issue is here:

{% url 'articles:detail' pk = article.pk %}

Django's built in URL template tag treats spaces as delimiters between arguments. So in your case, the tag thinks you are giving it three positional arguments (pk, =, and article.pk) instead of a single keyword argument. To use keyword arguments you must not use spaces between the argument name, equals, and value.

You can solve this issue by either using a single positional argument (article.pk) or a single keyword argument (pk=article.pk). Either way will pass this challenge.

Cheers

Alex