Template Tags to format decimal values in render_field

Using Django Templates & Frontend
1

I have a templatetags in my application that renders currency in my django templates


register = template.Library()

@register.filter
def currency(value):
    try:
        return "{:,.2f}".format(value)
    except (ValueError, TypeError):
        return value
    

@register.filter
def dollar_currency(value):
    try:
        return "${:,.2f}".format(value)
    except (ValueError, TypeError):
        return value

But when I use it on render_field on the template, it does not work.

It works for this {{form.sum_plan|currency}}

But does not work on this  {% render_field formset.Jan_Plan|currency class="form-control" %}   

A help will be highly appreciated.

Thanks.
2

Please explain exactly what happens, including the full output of any errors.

3

There was no error, just that it rendered very well with {{form.sum_plan|currency}}, but not working with {% render_field formset.Jan_Plan|currency class=“form-control” %}

You can find in the upload. It rendered very well, showing the comma separation and the dollar sign, but in the textboxes rendered with render_field, it does not work.

Screenshot 2025-02-17 111431
Screenshot 2025-02-17 1114311835×343 23.5 KB

4

If you do:

{{ formset.Jan_Plan|currency }}

does that output the value with a comma?

5

There is no Django-provided tag named render_field, which means it’s part of a third-party package - something that you or someone else has written.

If you’re talking about the render_field tag provided by django-widget-tweaks, then the issue is that you’re rendering two different things here. A form widget is an input field, and its requirements are different than just rendering the value of a field.

What is going to control this is the type of form field widget being rendered, not the value being displayed in the field. (Also see Monetary amount input)

6

Yes it does. But when I apply render_field it doesn’t. I believe @KenWhitesell has said it all. It is not a Django-provided tag, it is a third party. I need to check what the third party provided, may be they are still working on it, but I need to check deeper. Thanks