Django how to pass user object in class based view pagenation? - django

Question

The default class based view pagination returning all object. I have an my account page for my each individual user where I need to show pagination number. By default pagination is same for all user. Let you explain little bit. If user A have 10 items and I listed 2 items per page then user A will be see total 5 page in his account which is fine but user B haven't any items and he is currently seeing only pagination number like page1,page2,page3... in his account because the current pagination returning all items from database. here is my code:
views.py
class BlogMyAccount(ListView):
paginate_by = 10
model = Blog
template_name = 'blog/my-account.html'
ordering = ['-id']
#html
{% for blog in object_list %}
{% if user.id == blog.author.id %}
....my code
{% endif %}
{% endfor %}
<!---pagination code---->
<ul class="pagination justify-content-center mb-4">
{% if page_obj.has_previous %}
<li class="page-item"><a class="page-link" href="?page=1">First Page</a></li>
<li class="page-item"><a class="page-link" href="?page={{ page_obj.previous_page_number }}">← Back</a></li>
{% endif %}
{% if page_obj.has_next %}
<li class="page-item"><a class="page-link" href="?page={{ page_obj.next_page_number }}">Next Page →</a></li>
{% endif %}
{% for i in paginator.page_range %}
{% if page_obj.number == i %}
<li class="page-item"><a class="page-link" href="#!">{{ i }}</a></li>
{% elif i > page_obj.number|add:'-3' and i < page_obj.number|add:'3' %}
<li class="page-item"><a class="page-link" href="?page={{ i }}">{{ i }}</a></li>
{%endif%}
{% endfor %}
<li class="page-item"><a class="page-link" href="?page={{ page_obj.paginator.num_pages }}">Last Page</a></li>
</ul>
in function based view I am passing user object like this in pagination:
notifications = Notifications.objects.all().filter(user=user).order_by('-date')
paginator = Paginator(notifications, 20) # Show 25 contacts per page.
I tried to apply same method by using context in my classed view but didn't work. Pagination is same for all user in class based view.

Answer 1

You need to filter the queryset the same way you did in FBV. Override get_queryset() to only return objects associated with your requesting user.
class BlogMyAccount(ListView):
paginate_by = 10
model = Blog
template_name = 'blog/my-account.html'
ordering = ['-id']
def get_queryset(self):
queryset = Blog.objects.filter(author=self.request.user)
return queryset
Also you dont need to call .all() on Notifications.objects, it is already a queryset, Notifications.objects.filter() is okay.
If possible, move ordering to the models.py file, as in:
class Meta:
ordering = ['-id']

Answer 2

You can override the get_querset method, and by using a super() call, let Django do the .order_by clause for us:
from django.contrib.auth.mixins import LoginRequiredMixin
class BlogMyAccount(LoginRequiredMixin, ListView):
paginate_by = 10
model = Blog
template_name = 'blog/my-account.html'
ordering = ['-id']
def get_queryset(self, *args, **kwargs):
# ↓ will take care of the ordering
return super().get_querset(*args, **kwargs).filter(
author=self.request.user
)
Note: You can limit views to a class-based view to authenticated users with the
LoginRequiredMixin mixin [Django-doc].