Update view not displaying data - django

Question

I have a function-based view that does not load the data that was inputted. The view does not throw any error at all. It just presents the form as a blank one.
urls.py
path('edit/<slug>/', editPost, name='edit'),
views.py
#login_required
def editPost(request, slug):
if request.method == 'POST':
post = get_object_or_404(Post, slug=slug)
form = PostForm(request.POST or None, request.FILES or None, instance=post)
if form.is_valid():
post.author = request.user.username
post.updated = True
form.save()
return redirect('dashboard')
else:
form = PostForm(request.POST, request.FILES, instance=post)
return render(request, 'edit_post.html', {'form': form})
template
<form class="dropdown-item" action="{% url 'edit' slug=post.slug %}" method="post">{% csrf_token %}
<input class="btn btn-sm" type="submit" value="Edit">

Answer 1

render form in template, using {{ form.as_p }}
<form class="dropdown-item" action="{% url 'edit' slug=post.slug %}" method="post">
{% csrf_token %}
<!-- render form here -->
{{ form.as_p }}
<input class="btn btn-sm" type="submit" value="Edit">
</form>
or loop through form fields as
<form class="dropdown-item" action="{% url 'edit' slug=post.slug %}" method="post">
{% csrf_token %}
<!-- render form here -->
{% for field in form %}
{{ field.label }}
{{ field }}
{{ field.error }}
{% endfor %}
<input class="btn btn-sm" type="submit" value="Edit">
</form>

Answer 2

#login_required
def editPost(request, slug):
post = get_object_or_404(Post, slug=slug)
if request.method == 'POST':
form = PostForm(request.POST or None, request.FILES or None, instance=post)
if form.is_valid():
post.author = request.user.username
post.updated = True
form.save()
return redirect('dashboard')
else:
form = PostForm(instance=post)
return render(request, 'edit_post.html', {'form': form})
Probably you have to do something like that, there is not any reason to pass request.POST and request.FILES when you don't have POST action in the view. In that way you just have to pass the post object that have all the related info.
And also you have to render your form in the following way:
<form class="dropdown-item" action="{% url 'edit' slug=post.slug %}" method="post" enctype="multipart/form-data">
{% csrf_token %}
<!-- render form here -->
{{ form.as_p }}
<input class="btn btn-sm" type="submit" value="Edit">
</form>
Notice that enctype="multipart/form-data" is mandatory 'cause you are dealing with files in your form elsewhere it won't work properly.
Also checkout where you have to put your post = get_object_or_404(Post, slug=slug) line, 'cause in thay way you can pass the object to whatever action that is being performing (POST or GET).