Unable to access view.kwargs inside base template

Using Django
1

I have some child templates which extends one base template. I can access {{ view.kwargs }} inside the child template but when I use it inside the base template its value is empty. I have searched it on stack overflow and web but couldn’t find a solution.

view.kwargs.xyz contains the argument part in my url

My urls.conf
path('test/<str:xyz>/', SomeViewName, name='test-xyz'),

URL: https://somedomain/test/demovalue/

Base Template
basetemplate.html

<html>
...
{{ view.kwargs.xyz }} ---> This value is empty
...
</html>

Child Template

{% extends "basetemplate.html" %}
{% block nav %}
    {{ view.kwargs.xyz }} ---> This displays the expected value ie. demovalue
{% endblock %}

I need to access view.kwargs inside base template because there is a url in base template to which i need to send a parameter from view.kwargs

<a href="{% url 'test-xyz' view.kwargs.xyz %}">link</a>

This code is not working in base template as view.kwargs is empty.

Could anyone help me how to fetch view.kwargs inside base template or is there any work around.

Thanks.

2

Assuming there’s not anything strange going on here in other parts of your code, the most obvious work-around is to just define that field as a block.

So, for example:

<a href="{% url 'test-xyz' view.kwargs.xyz %}">link</a>

Becomes:

<a href="{% block linkurl %}{% endblock %}">link</a>

And then you include this in your child template:

{% block linkurl %}{{ view.kwargs.xyz }}{% endblock %}

(Note: Pure conjecture on my part here as I know absolutely nothing about the Django template internals - but I might make a guess that there’s some sort of caching going on with the parent templates that allow them to be “pre-rendered” with placeholders for the child templates.)

3

Thank you. I was able to do it using {% block %} tag and {% include %} tag with arguments.