Translated URL's

[Felipe Mesquita de Oliveira]

Hi all,


I'm trying to work with translated URL's, but the behavior  I'm getting is not the one I expected.

Part of the code is below:

from django.utils.translation import ugettext_lazy as _

urlpatterns += patterns('',
             url(_(r'^help/$'), HelpView.as_view(), name='HelpView'),
             url(_(r'^new/'), include('News.urls')),  # two views inside this include: "/page-one/" and "page-two"
)


Imagining that I have English (en) and Spanish (es), the possible URL's would be:

/help/
/ayuda/
/news/
/news/page-one/
/news/page-two/
/noticias/
/noticias/pagina-um/
/noticias/pagina-dos/


Ok..
When I reverse "HelpView", if user language is set to 'en', I would get '/help/', and if user's language is 'es', I would get '/ayuda/'.
But, if the user with language set to 'es' access '/help/' (which is 'en'), I wanted the user to be able to see the page, but I'm getting Http-404 error.

Actually, even if the user (somehow) get to '/news/pagina-um', I wanted him to see the page (rendered using his/her language setting), and not Http404.

Thanks for any help, and if I was not clear, please let me know.

Regards,
Felipe
(Sp/Bra)

[werefrog]

Hello,

I don't know where you're trying the troublesome reverse but maybe the
following can help.


# myproject.urls

from django.conf.urls import patterns, url

from django.utils.translation import ugettext_lazy as _

from django.conf.urls.i18n import i18n_patterns

from help.views import HelpView


urlpatterns = patterns('',
#
)

urlpatterns += i18n_patterns('',
url(_(r'^help/$'), HelpView.as_view(), name='help-view')),
url(_(r'^news/'), include('news.urls')), # can add namespace
)


# news.urls

from django.conf.urls import patterns, url

from django.utils.translation import ugettext_lazy as _

from .views import PageOneView, PageTwoView


urlpatterns = patterns('',
url(_(r'^$'), PageOneView.as_view(), name='news'),
url(_(r'^page-one/$'), PageOneView.as_view(), name='news-page-one'),
url(_(r'^page-two/$'), PageTwoView.as_view(), name='news-page-two'),
)

# test.py

from django.utils.translation import activate

activate('es')
#...


# resulting urls

/en/help/
/es/ayuda/

/en/news/
/en/news/page-one/
/en/news/page-two/
/es/noticias/
/es/noticias/pagina-um/
/es/noticias/pagina-dos/

Of course, you need to translate to spanish.

#
https://docs.djangoproject.com/en/dev/topics/i18n/translation/#message-files
python manage.py makemessages -l es
# python manage.py makemessages -a

# translate resulting file then …

#
https://docs.djangoproject.com/en/dev/topics/i18n/translation/#compiling-message-files
python manage.py compilemessages

Regards,
Michel

[Felipe Mesquita de Oliveira]

Michel,

Thanks for you reply. 
My ideia was to make it without the '/es/' or '/en/' starting the url.

Let's say a user share an 'es' link to an american user.

Like this:  '/ayuda/'

I wanted the american user to be able to open it using language defined in user's session ('en').

Thanks in advance,

Felipe

[werefrog]

Felipe,

Well, if you don't prefix your urls with language code, Django will try
to match translated urls in the language retained for the session [1]
(black-box guessing).

I see multiple options, but the following is the less messy and seems to
fit your requirements:

# myproject.urls

from django.conf.urls import patterns, url
from django.utils.translation import ugettext_lazy as _

from help.views import HelpView


urlpatterns = patterns('',

url(_(r'^help/$'), HelpView.as_view(), name='help-view')),

url(r'^(help|ayuda)/$', HelpView.as_view())),
)

You keep first the translated named url for "reverse" sake then you add a forgiving pattern pointing to the right view.

Anyway, I found usefull to experience the localised rendering for different reasons (specific additions as legal informations, etc.) and you can easily propose a language selection "widget". I find also the prefix good for many reasons but you probably have your own ;)

Regards,

Michel

[1]
https://docs.djangoproject.com/en/dev/topics/i18n/translation/#how-django-discovers-language-preference

[Felipe Mesquita de Oliveira]

Michel,

Thanks again, for your availability in helping me.

Actually, that was almost what I have been doing, except that I was not working with '( option1 | option2 )' regex. I was adding one language each line, but works the same.

Like this:

                        url(_(r'^planos/$'), WebSitePlanosView.as_view(), name='WebSitePlanosView'),

                        url(r'^planos/$', WebSitePlanosView.as_view()),

                        url(r'^plans/$', WebSitePlanosView.as_view()),

The problem is when I have the 'include's:

                        url(r'^suporte/', include('WebSuporte.urls', )), # pt_BR, es

                        url(r'^support/', include('WebSuporte.urls', )), # en

                        url(_(r'^suporte/'), include('WebSuporte.urls')),

In this cases my tests showed that the 'translated' should come last, or the reverse won't respect the user's language when choosing the url to show.

Of course this is a solution, but I was wondering if it has a DRY way of doing this, since I haven't found on the docs, mainly because of the maintenance when adding a language, for example, that would make changing both translation files and all urls.py.

Thanks for you time and attention, if an new solution raises, it would be great!

Felipe

[werefrog]

Felipe,

Sorry, I'm quite busy these days.

Here is the beginning of something, but I'd prefer to avoid the 'myurl'
function. I'm not a dev' so you'll probably jump looking at that.

The base idea was to use only 'mypatterns' for obtainning the same
results we handwritten previously, including the ordering observation
you did. However, I cannot currently figure how to modify the url call,
that's why I had to use 'myurl'.

The following mess mostly butchered url and patterns functions normally
used.

It needs testing and that's quite raw but I'll take a look this week-end
probably. The don't think I handled 'prefix' variable how it should be
but that's for waiting ;)

# urls.py

from django.conf.urls import patterns, include, url

from django.utils.translation import ugettext_lazy as _

from django.conf.urls.i18n import i18n_patterns
from imbadwithnamestoo.utils import mypatterns, myurl

urlpatterns = patterns('',
#
)

urlpatterns += mypatterns('',
myurl(_(r'^suporte/'), include('WebSuporte.urls') ),
)


# imbadwithnamestoo.utils

from django.conf import settings
from django.conf.urls import url
from django.utils.translation import activate, deactivate
from django.utils.translation import ugettext


def myurl(regex, view, kwargs=None, name=None, prefix=''):
return (regex, view, kwargs, name, prefix)

def mypatterns(prefix, *args):
pattern_list = []
for t in args:
# dealing with include or others
regex, view, kwargs, name, prefix = t

languages = [lang[0] for lang in settings.LANGUAGES]

if isinstance(view, (list,tuple)):
# For include(...) processing.
for lang in languages:
activate(lang)
translated_regex = ugettext(regex)
pattern_list.append(url(translated_regex, view, kwargs,
None, prefix))
deactivate()
pattern_list.append(url(regex, view, kwargs, name, prefix))
else:
pattern_list.append(url(regex, view, kwargs, name, prefix))
for lang in languages:
activate(lang)
translated_regex = ugettext(regex)
pattern_list.append(url(translated_regex, view, kwargs,
None, prefix))
deactivate()

return pattern_list

Regards,
Michel