Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Customizing Django Templates Building Custom Filters Conjugation Tag

Kody Low
Kody Low
13,501 Points

Am I missing something here? I'm trying to pass the num_elf into my tag but it's not working

Am I missing something here? I'm trying to pass the num_elf into my tag but it's not working

code_challenges/templatetags/fairy_extras.py
from django import template

register = template.Library()

@register.simple_tag
def conjugate_is(number):
    if number == 1:
        return 'is'
    else:
        return 'are'
code_challenges/templates/code_challenges/list.html
{% load fairy_extras %}

There {{ num_elf|conjugate_is }} {{ num_elf }} el{{ num_elf|pluralize:"f,ves" }}.

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,423 Points

You are very close. The usage for custom tags is different than for custom filters. In custom tags are used like any other tag with a space before arguments:

There {% conjugate_is num_elf %} {{ num_elf }} el{{ num_elf|pluralize:"f,ves" }}.