CODEWITHSUNDEEP
pythondjangodjango-templates
Benjamin Simon
Benjamin Simon

Reputation: 3

Django - Liste index in template

I have a problem with my template.

I know how to use list.index to get a value from a list, but now my index value is list.container.id (=1).

So, I have stupidly try list.container.id and is not working like list.1.

Upvotes: 0

Views: 492

Answers (1)

at14
at14

Reputation: 1204

Edit: As pointed out the old answer was wrong,

New Solution:

Create a custom filter tag.

In your app, create a python module called templatetags (create a folder and place an init.py file in it) then create a py file for your custom filter, for ex: my_custom_filter.py

from django import template

register = template.Library()


@register.filter
def index_my_list(my_list, index):
    try:
        return my_list[index]
    except IndexError:
        return None

Use in your template as 

{{list|index_my_list:container.id}}

All this being said, it is best to keep your logical code in the view, you might want to reconsider your data structures

Wrong Solution:

Assign container.id to a variable then use it

{% with container.id as foo %}

{{list.foo}}

Upvotes: 1

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