Convert negative number to positive number in django template?

Question

How to convert negative number to positive number in django template?

{% for balance in balances %}
    {{ balance.amount }}
{% endfor %}

If balance.amount is negative number, I want to convert it to positive number.

Answer 1

I would like to suggest installing django-mathfilters.

Then you can simply use the abs filter like this:

{% for balance in balances %}
    {{ balance.amount|abs }}
{% endfor %}

Answer 2

If you don't want/can't install django-mathfilters

You can make a custom filter quite easily:

from django import template
register = template.Library()


@register.filter(name='abs')
def abs_filter(value):
    return abs(value)