#11688: verbose_name should allow dynamical translation based on a number
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Reporter: mitar | Owner: nobody
Type: New feature | Status: reopened
Component: Internationalization | Version: 1.1
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 1
Easy pickings: 0 | UI/UX: 0
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Comment (by sirex):
Ofter some research, found that it is quite hard to make dynamic model
names
display correctly in all languages.
Actually most languages divides nouns to singular, plural, numeric and
grammatical case forms.
Trickiest part is grammatical cases, actually most languages has same
grammatical cases described here:
http://en.wikipedia.org/wiki/Grammatical_case
Overall there are these grammatical cases:
* nominative
* accusative
* dative
* ablative
* genitive
* vocative
* locative
* instrumental
Each grammatical case has different singular, plural and numeric forms.
After trying to put all this in model class, decided, that this heavily
violates KISS principle, because, each model must describe all possible
variations of these forms.
So in my opinion, this feature must be implemented using automatically
generated strings to .po files leaving models with just one verbose name:
{{{
from django.db import models
from django.utils.translation import Noun
class Book(models.Model):
title = models.CharField(max_length=128)
class Meta:
verbose_name = Noun('book')
}}}
After running {{{./manage.py makemessage -l lt}}}, these strigs must be
generated:
{{{
# nominative
msgid "book"
msgstr "knyga"
msgctxt "plural"
msgid "books"
msgstr "knygos"
msgctxt "numeric"
msgid "book"
msgid_plural "books"
msgstr[0] "knyga"
msgstr[1] "knygos"
msgstr[2] "knygų"
# accusative
msgctxt "accusative"
msgid "book"
msgstr "knygą"
msgctxt "accusative plural"
msgid "books"
msgstr "knygas"
msgctxt "accusative numberic"
msgid "book"
msgid_plural "books"
msgstr[0] "knygą"
msgstr[1] "knygas"
msgstr[2] "knygų"
# dative
msgctxt "dative"
msgid "book"
msgstr "knygai"
msgctxt "dative plural"
msgid "books"
msgstr "knygoms"
msgctxt "dative numberic"
msgid "book"
msgid_plural "books"
msgstr[0] "knygai"
msgstr[1] "knygoms"
msgstr[2] "knygų"
# ablative
...
}}}
Not all languages have grammatical cases and those who have, has not all
of
them, so I guess available grammatical cases should be listed in
{{{django.conf.locale.<LANG>}}} to get smaller .po files for languages
that
does not have grammatical cases.
Finally, instance of {{{Noun('book')}}} should work this way (all examples
provided using Lithuanian language, that has all grammatical cases except
ablative):
1. Singular forms:
{{{
Noun('book') -> knyga
Noun('book').accusative -> knygą
Noun('book').dative -> knygai
Noun('book').ablative -> nuo knygos
Noun('book').genitive -> knygos
Noun('book').vocative -> knyga
Noun('book').locative -> knygoje
Noun('book').instrumental -> knyga
}}}
2. Plural forms:
{{{
Noun('book').plural -> knygos
Noun('book').plural_accusative -> knygas
Noun('book').plural_dative -> knygoms
Noun('book').plural_ablative -> nuo knygų
Noun('book').plural_genitive -> knygų
Noun('book').plural_vocative -> knygos
Noun('book').plural_locative -> knygose
Noun('book').plural_instrumental -> knygomis
}}}
3. Numeric forms:
{{{
Noun('book')[0] -> knygų
Noun('book')[1] -> knyga
Noun('book')[2] -> knygos
Noun('book')[10] -> knygų
Noun('book')[0] -> knygų
Noun('book')[0].accusative -> knygų
Noun('book')[0].dative -> knygų
Noun('book')[0].ablative -> nuo knygų
Noun('book')[0].genitive -> knygų
Noun('book')[0].vocative -> knygų
Noun('book')[0].locative -> knygų
Noun('book')[0].instrumental -> knygų
}}}
In Django code, in all places must be used right noun form. For excample:
{{{
{% blocktrans with cl.opts.verbose_name.accusative as name %}
Add {{ name }}
{% endblocktrans %}
}}}
This way quite many countries will have possibility to translate this to
correct form.
--
Ticket URL: <https://code.djangoproject.com/ticket/11688#comment:7>
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