Django jinja if-elif statement breaks with == - django

Question

So on my front-end, I want to show some HTML only if the user belongs to one of 2 groups: 'admins' or 'clerks'. There are 3 groups of users: 'admins', 'clerks', and 'sellers'. Here is my front-end code:
{% if user.groups.all.0 == "admins" %}
<h1>Some HTML</h1>
{% elif user.groups.all.0 == "clerks" %}
<h1>Some HTML</h1>
{% endif %}
When I run this code, the HTML shows for the admins. But that of the clerks does not show. I have tried printing out the group to be sure that the spelling and the casing were the same, and they were the same. And Django does not throw an error. It only works if I rewrite the code as follows:
{% if user.groups.all.0 == "admins" %}
<h1>Some HTML</h1>
{% elif user.groups.all.0 != "sellers" %}
<h1>Some HTML</h1>
{% endif %}
But I feel like this is not good design. Please am I missing something? Thank you all in advance

Answer 1

First of all, is a not practical idea for too many reasons.
Think that using that method you are getting possibilities and processing that don't correspond to the templates. The templates engine philosophy is just basic and no important logic.
A way to have more control and more practical is using a flag. For example
groups_permited_for_this=["admins","clerks",...]
Permited =False
for group in user.Groups.all:
if group.name in groups_permited_for_this:
Permited =True
Pass it as context and then use a Jinja if statement.

Answer 2

So I resolved the issue in a slightly different way from the one above:
First, I created a folder called 'templatetags' inside the app.
Then I created 2 files in it:
An empty 'init.py' file
A 'cust_auth.py'(for custom authentication) file
Inside the 'cust_auth.py' file I wrote a function that does a similar thing as in #Paulo Aguilar's answer above:
from django import template
from django.contrib.auth.models import Group
register = template.Library()
#register.filter(name='has_group')
def has_group(user, group_name):
group = Group.objects.get(name=group_name)
return True if group in user.groups.all() else False
Then in my template, I loaded the 'cust_auth.py' file at the top:
{% load auth_extras %}
Then I did the logic I was looking for:
{% if user|has_group:"admins" %}
<h1>Some HTML</h1>
{% endif %}
I preferred this because I think over the cause of my application, I will want more custom authentications
Thank you Paulo and whoever posts