Fix Catalan formats.py to use alt.month

[mpachas]

DATE_FORMAT, DATETIME_FORMAT and MONTH_DAY_FORMAT strings in Catalan language are wrong because it uses always the preposition "de" between the day number and the month name but it is wrong when the month name starts with vowel like abril (April), agost (August) or octubre (October). In that case it should be d'abril, d'agost or d'octubre.

I think that alt.month Month translations were created to help in this kind of situations (​https://github.com/django/django/commit/2478f8588e) so this issue can be solved by a combination of a Catalan formats.py patch (django/conf/locale/ca/formats.py) and changing that translations (via Transifex).

Actual:
DATE_FORMAT = r"j \d\e F \d\e Y"

msgid "January"
msgstr "gener"

msgid "April"
msgstr "abril"

{item.date | date} output -> 25 de gener de 2007
{item.date | date} output -> 4 de abril de 2014 ---> THIS IS WRONG

Proposal:

DATE_FORMAT = r"j E \d\e Y" # E placeholder: alt. month translations for special cases.

msgctxt "alt. month"
msgid "January"
msgstr "de gener"

msgctxt "alt. month"
msgid "April"
msgstr "d'abril"

{item.date | date} output -> 25 de gener de 2007
{item.date | date} output -> 4 d'abril de 2014

I'm trying to reach Catalan Transifex Team to add those strings, I think .po/.mo files won't follow the usual pull request way, but they must be changed before this file gets patched.

Alternative month representation is available since this https://code.djangoproject.com/ticket/12309#no1

Patch: ​https://github.com/django/django/pull/15634

[mpachas]

patch file for formats.py

[mpachas]

patch with .diff extension

[Carlton Gibson]

Hi, thanks for the report.

… it is wrong when the month name starts with vowel like abril (April), agost (August) or octubre (October). In that case it should be d'abril, d'agost or d'octubre.

Yep, OK.

Let's accept; without reviewing fully, your explanation that we need to update the formats sounds likely.

Are you able to open a PR on GitHub with your patch? ​https://github.com/django/django/pulls

Moltes gràcies!

[mpachas]

Replying to Carlton Gibson:

I will open a PR as soon as we update django.po and django.mo for Catalan. Otherwise, if the PR gets merged without the translations update then DATE_FORMAT, DATETIME_FORMAT and MONTH_DAY_FORMAT will show an incomplete format for all months instead of a wrong format for 3 months.

If you think I should open it anyway, please tell me. Thanks.

[Carlton Gibson]

Replying to mpachas:

Yes, I would open it anyway: it's easier to work with PRs than patch files (if only that we're already there, and seeing it in our list…)
Thanks

[mpachas]

Replying to Carlton Gibson:

Replying to mpachas:

Yes, I would open it anyway: it's easier to work with PRs than patch files (if only that we're already there, and seeing it in our list…)
Thanks

PR available at ​https://github.com/django/django/pull/15634, I've just get in touch with aaloy as Transifex coordinator for Django translations in Catalan.

[Carlton Gibson <carlton.gibson@…>]

In aa28c392:

Fixed #33661 -- Corrected Catalan date-format localization.

Changed DATE_FORMAT, DATETIME_FORMAT and MONTH_DAY_FORMAT
to use E placeholder (Month, locale specific alternative)
to handle both “de gener” and contracted “d’abril” cases.

Thanks to Ferran Jovell for review.