Turn python slug url into link in HTML. (Django)

Question

I'm having issues turning this slug url pattern into a link in my html. I have delete and edit methods in my views.py and they work as needed if I type them in...example: http://127.0.0.1:8000/posts/football-banner/delete will delete the post and http://127.0.0.1:8000/posts/football-banner/update will allow me to edit the post. I just need to get update and delete into a link in my html. Can anyone suggest a solution to this? Thanks.

html

{% if request.user.is_authenticated %}
    <a href="{% url "posts:update" %}" class="delete btn btn-success">Edit</a>
    <a href="{% url "posts:delete" %}" class="delete btn btn-danger" data-confirm="Are you sure to delete this item?">Delete</a>
{% else %}
        <p >Cannot Edit Posts</p>
        {% endif %}

urls.py

from .views import (
    post_list,
    post_create,
    post_detail,
    post_update,
    post_delete,
    )

urlpatterns = [
    url(r'^$', post_list, name='list'),
    url(r'^create/$', post_create, name='create'),
    url(r'^(?P<slug>[\w-]+)/$', post_detail, name='detail'),
    url(r'^(?P<slug>[\w-]+)/edit/$', post_update, name='update'),
    url(r'^(?P<slug>[\w-]+)/delete/$', post_delete, name='delete'),
    #url(r'^posts/$', "<appname>.views.<function_name>"),
]

views.py

def post_update(request, slug=True):
    if not request.user.is_staff or not request.user.is_superuser:
        raise Http404
    instance = get_object_or_404(Post, slug=slug)
    form = PostForm(request.POST or None, request.FILES or None, instance=instance)
    if form.is_valid():
        instance = form.save(commit=False)
        instance.save()
        messages.success(request, "<a href='#'>Item</a> Saved", extra_tags='html_safe')
        return HttpResponseRedirect(instance.get_absolute_url())

    context = {
        "title": instance.title,
        "instance": instance,
        "form": form,
    }
    return render(request, "post_form.html", context)


def post_delete(request, slug=None):
    if not request.user.is_staff or not request.user.is_superuser:
        raise Http404
    instance = get_object_or_404(Post, slug=slug)
    instance.delete()
    messages.success(request, "Successfully deleted")
    return redirect("posts:list")

Answer 1 · 2016-08-10T16:11:44Z

August 10, 2016 4:11pm

Both the views that you're calling in the HTML take a slug keyword. I rather doubt that you have posts with the slugs of True or None and, as that's the case, you will get a 404 error when you try to click on the links as they stand.

Assuming that you have a post in the context_data for the page that these links are on, you can try something like this. It might fix your errors.

{% if request.user.is_authenticated %}
    <a href="{% url 'posts:update' slug=post.slug %}" class="delete btn btn-success">Edit</a>
    <a href="{% url 'posts:delete' slug=post.slug %}" class="delete btn btn-danger" data-confirm="Are you sure to delete this item?">Delete</a>
{% else %}
    <p>Cannot Edit Posts</p>
{% endif %}

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Turn python slug url into link in HTML. (Django)

1 Answer

jacinator

jacinator