Force date and time formats to ISO

[Mark Caglienzi]

Hello to the list,
I am developing a Django website that needs USE_L10N = True, and
per-user TZ settings, but I want to force the output of dates and times
to ISO everywhere, once and for all (YYYY-MM-DD and HH:MM:SS).

I understand that Django with USE_L10N = True overrides the output of
DateField, DateTimeField, TimeField to follow the locale format, but I
need the format of my choice everywhere.

For the output in templates I came to this solution: write a
templatefilter that does the localtime -> strftime steps, and it works.

But to be the definitive solution also form fields when doing CRUD on my
database objects must accept and show dates and datetimes in that format.

I'm thinking that I have to write custom form fields like
ISO_DateField(django.forms.DateField),
ISO_DateTimeField(django.forms.DateTimeField) and
ISO_TimeField(django.forms.TimeField) overriding their methods to do
what I need.

Is there a better way?

Thanks in advance,
Mark

[Collin Anderson]

If it helps, the ISO format should always at least be _accepted_ as an input, even it it's not displayed that way.

[Mark Caglienzi]

On 29 Sep 13:17, Collin Anderson wrote:
> If it helps, the ISO format should always at least be _accepted_ as an
> input, even it it's not displayed that way.

Yes, I agree, but the main point (for what I need) is also the display of the
date and times.

This will allow to keep the webapp forms/tables uniform (it's a
requirement) and also ease the use of javascript widgets for the date
and time fields (one format, coherent).

[Collin Anderson]

I wonder if it's possible to somehow use a custom locale that will always show ISO dates.

[Mike Dewhirst]

On 1/10/2014 10:35 PM, Collin Anderson wrote:
> I wonder if it's possible to somehow use a custom locale that will
> always show ISO dates.

I believe some of the Scandinavian countries use ISO natively ...


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[Jan Eskilsson]

Sweden does

2014-10-01 16:59 GMT+04:00 Mike Dewhirst <mi...@dewhirst.com.au>:

On 1/10/2014 10:35 PM, Collin Anderson wrote:

I wonder if it's possible to somehow use a custom locale that will
always show ISO dates.

I believe some of the Scandinavian countries use ISO natively ...

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[Erik Cederstrand]

Den 01/10/2014 kl. 14.59 skrev Mike Dewhirst <mi...@dewhirst.com.au>:

> On 1/10/2014 10:35 PM, Collin Anderson wrote:
>> I wonder if it's possible to somehow use a custom locale that will
>> always show ISO dates.
>
> I believe some of the Scandinavian countries use ISO natively ...

Except the OP probably doesn't want our monetary and numeric formats. Have a look at custom format files (https://docs.djangoproject.com/en/1.7/topics/i18n/formatting/#creating-custom-format-files) to override the DATE_FORMAT and DATETIME_FORMAT settings (https://docs.djangoproject.com/en/1.7/ref/settings/#std:setting-DATE_FORMAT).

Erik