[Django]-Passing arguments into partials automatically

Solved it using inclusion tags.

Created custom tag in the templatetags/tags.py file

from django import template
from flowers.models import Category
register = template.Library()
@register.inclusion_tag('_partials/nav.html')
def show_categories():
    categories = Category.objects.all()
    print categories
    return {'categories':categories}

Created template for it in the _partials/nav.html file

<nav>
   <ul>
        {% for category in categories %}
            <li><a href="{% url 'category:detail' category.id' %}">{{ category.name }}</a></li>
        {% endfor %}
   </ul>
</nav>

At the end, used that tag

{% load tags %}
{% show_categories %}