Django template tags conditionals - django

Question

Right, am struggling with my blog app when trying to render some logic through the template view. So the idea is to render a one time only button for the newly authenticated users that do not have a post published and after the user has published its first post the button will be rendered within a for loop so he/she'll be able to create/delete a new one from there.
views.py
#login_required(login_url='app_users:login')
#allowed_users(allowed_roles=['admin', 'staff', 'users'])
def blog(request):
posts = BlogPost.objects.all().order_by('date_posted')
context = {'title': 'Blog', 'posts': posts}
return render(request, 'app_blog/blog.html', context)
models.py
class BlogPost(models.Model):
title = models.CharField(max_length=100, null=True)
content = models.TextField(null=True)
date_posted = models.DateTimeField(default=timezone.now, null=True, blank=True)
author = models.ForeignKey(User, on_delete=models.CASCADE)
def __str__(self):
return self.title
blog.html
{% block content %}
{% if request.user not in posts|last %}
<div class="container" style="float: left;">
<a class="btn btn-primary btn-sm mt-1 mb-1" href="{% url 'app_blog:blog_create' user.id %}"><h5>C'mon {{ request.user.username }}, don't be shy! Create Your First Blog Post!</h5></a>
</div>
{% endif %}
<br>
<br>
{% for post in posts %}
<br>
<div class="container">
<article class="media content-section">
<img class="rounded-circle account-img" src="{{ post.author.profile.image.url }}" alt="Image could not be uploaded!">
<div class="card-body media-body">
<div class="article-metadata">
<a class="mr-2" href="{% url 'app_blog:blog_user_detail' post.id %}">{{ post.author }}</a>
<small class="text-muted">{{ post.date_posted|date:"d F Y" }}</small>
</div>
<div class="article-metadata">
{% if post.author == request.user %}
<div>
<a class="btn btn-primary btn-sm mt-1 mb-1" href="{% url 'app_blog:blog_create' post.id %}">Create New Post</a>
<a class="btn btn-primary btn-danger btn-sm mt-1 mb-1" href="{% url 'app_blog:blog_delete' post.id %}">Delete</a>
</div>
{% endif %}
</div>
<h2><a class="article-title" href="{% url 'app_blog:blog_detail' post.id %}">{{ post.title }}</a></h2>
<p class="article-content">{{ post.content|safe }}</p>
</div>
</article>
</div>
<br>
{% endfor %}
{% endblock %}
So, again, end question would be about what sort of conditionals to use here:
{% if request.user not in posts|last %}
Thanks.

Answer 1

Not quite sure I fully understand but I will suggest something. A user who was a saved post should not see that button? If so, maybe something like this would work:
{% if request.user not in posts.authors.all %}
EDIT original solution won't work. posts is a queryset object
views.py
#login_required(login_url='app_users:login')
#allowed_users(allowed_roles=['admin', 'staff', 'users'])
def blog(request):
posts = BlogPost.objects.all().order_by('date_posted')
new_user = len(posts.filter(author=request.user)) == 0
context = {'title': 'Blog', 'posts': posts, 'new_user': new_user}
return render(request, 'app_blog/blog.html', context)
blog.html (just the condition)
{% if new_user %}