Turbogears i18n pains

Polž

2009-01-19 12:37

The final problem I have run into with TurboGears is the poor documentation regarding i18n with Genshi templates. The only way I have been able to get gettext to work for this blog was by using sourcecode from Transifex. To get i18n to work with genshi templates, I added this to config/app.cfg:

session_filter.on = True
i18n.run_template_filter = True

i18n.domain = "cblog"
i18n.locale_dir = "locales/"
i18n.po_view_dir = "locales/view/"

i18n.locale_dir = "locales/"

and this to controllers.py:

# i18n support
from turbogears.i18n import gettext
from genshi.filters import Translator
import turbogears.view

def genshi_loader_callback(template):
    template.filters.insert(0, Translator(gettext))

def init_callback():
    turbogears.view.engines['genshi'].loader.callback = genshi_loader_callback

turbogears.startup.call_on_startup.append( init_callback )

config.update({'genshi.loader_callback': genshi_loader_callback})

# i18n support - end

To create the translation files, I followed the instructions from the Genshi i18n page. First, I created a mappings.cfg file containing:

# Extraction from Python source files
[python: **.py]
# Extraction from Genshi HTML and text templates
[genshi: **/templates/**.html]

And then ran:

pybabel extract -o locales/cblog.pot -F ./mappings.cfg cblog
pybabel init -D cblog -i locales/cblog.pot -d locales/ -l en # for the english language
pybabel compile -D cblog -d locales/ -f --statistics

Unfortunately, in order for the changes to the translated strings to take effect, the application needs to be restarted. The need to restart the server each time a translated string changes seems silly. Also, I spent more than 3 days hunting for documentation on how to actually get the i18n to work. Hopefully, doing the same with Django will be less painful.

After trying to work with the framework for over two weeks, I am about to give up on TurboGears, at least until 2.0 hits Debian. Hopefully, Django is going to work a bit better.

session_filter.on = True
i18n.run_template_filter = True

i18n.domain = "cblog"
i18n.locale_dir = "locales/"
i18n.po_view_dir = "locales/view/"

i18n.locale_dir = "locales/"

and this to controllers.py:

# i18n support
from turbogears.i18n import gettext
from genshi.filters import Translator
import turbogears.view

def genshi_loader_callback(template):
    template.filters.insert(0, Translator(gettext))

def init_callback():
    turbogears.view.engines['genshi'].loader.callback = genshi_loader_callback

turbogears.startup.call_on_startup.append( init_callback )

config.update({'genshi.loader_callback': genshi_loader_callback})

# i18n support - end

To create the translation files, I followed the instructions from the Genshi i18n page. First, I created a mappings.cfg file containing:

# Extraction from Python source files
[python: **.py]
# Extraction from Genshi HTML and text templates
[genshi: **/templates/**.html]

And then ran:

pybabel extract -o locales/cblog.pot -F ./mappings.cfg cblog
pybabel init -D cblog -i locales/cblog.pot -d locales/ -l en # for the english language
pybabel compile -D cblog -d locales/ -f --statistics