def langfiles_for_path(path):
"""
Find and return any extra lang files specified in templates or python
source files, or the first entry in the DOTLANG_FILES setting if none.
:param path: path to a file containing strings to translate
:return: list of langfile names.
"""
lang_files = None
if is_template(path):
# If the template explicitly specifies lang files, use those
lang_files = parse_template(join(settings.ROOT, path))
# Otherwise, normalize the path name to a lang file
if not lang_files:
lang_files = [get_lang_path(path)]
elif is_python(path):
# If the python file explicitly specifies lang files, use those
lang_files = parse_python(join(settings.ROOT, path))
if not lang_files:
# All other sources use the first main file
lang_files = settings.DOTLANG_FILES[:1]
return lang_files
def template_is_active(path, lang):
"""Given a template path, determine if it should be active for a locale.
It is active if either the template's lang file, or the lang file
specified in the "set_lang_files" template tag has the active tag.
:param path: relative path to the template.
:param lang: language code
:return: boolean
"""
if settings.DEV:
return True
cache_key = 'template_active:{lang}:{path}'.format(lang=lang, path=path)
is_active = cache.get(cache_key)
if is_active is None:
# try the quicker and more efficient check first
is_active = lang_file_is_active(get_lang_path(path), lang)
if not is_active:
template = get_template(path)
lang_files = parse_template(template.filename)
is_active = lang_files and lang_file_is_active(lang_files[0], lang)
cache.set(cache_key, is_active, settings.DOTLANG_CACHE)
return is_active
def render(request, template, context={}, **kwargs):
"""
Same as jingo's render() shortcut, but with l10n template support.
If used like this::
return l10n_utils.render(request, 'myapp/mytemplate.html')
... this helper will render the following template::
l10n/LANG/myapp/mytemplate.html
if present, otherwise, it'll render the specified (en-US) template.
"""
# Look for localized template if not default lang.
if request.locale != settings.LANGUAGE_CODE:
localized_tmpl = '%s/templates/%s' % (request.locale, template)
try:
return jingo.render(request, localized_tmpl, context, **kwargs)
except TemplateNotFound:
# If not found, just go on and try rendering the parent template.
pass
# Every template gets its own .lang file, so figure out what it is
# and pass it in the context
path = get_lang_path(template)
(base, ext) = os.path.splitext(path)
context['langfile'] = base
return jingo.render(request, template, context, **kwargs)
def _get_template_tag_set(lang, path):
lang_files = [get_lang_path(path)]
template = get_template(path)
lang_files.extend(parse_template(template.template.filename))
tag_set = set()
for lf in lang_files:
tag_set |= lang_file_tag_set(lf, lang)
return tag_set
def pot_to_langfiles():
"""Update the lang files in /locale/templates with extracted
strings."""
all_msgs = po_msgs()
root = 'templates'
# Start off with some global lang files so that strings don't
# get duplicated everywhere
main_msgs = parse_lang(lang_file('main.lang', root))
main_msgs.update(parse_lang(lang_file('base.lang', root)))
main_msgs.update(parse_lang(lang_file('newsletter.lang', root)))
# Walk through the msgs and put them in the appropriate place. The
# complex part about this is that templates can specify a list of
# lang files to pull from, so we need to check all of them for the
# strings and add it to the first lang file specified if not
# found.
for path, msgs in all_msgs.items():
target = None
lang_files = None
if is_template(path):
# If the template explicitly specifies lang files, use those
lang_files = [
lang_file('%s.lang' % f, root)
for f in parse_template(join(settings.ROOT, path))
]
# Otherwise, normalize the path name to a lang file
if not lang_files:
lang_files = [lang_file(get_lang_path(path), root)]
else:
# All other sources use the first main file
lang_files = [
lang_file('%s.lang' % settings.DOTLANG_FILES[0], root)
]
# Get the current translations
curr = {}
for f in lang_files:
if os.path.exists(f):
curr.update(parse_lang(f))
# Add translations to the first lang file
target = lang_files[0]
if not os.path.exists(target):
d = os.path.dirname(target)
if not os.path.exists(d):
os.makedirs(d)
with codecs.open(target, 'a', 'utf-8') as out:
for msg in msgs:
if msg not in curr and msg not in main_msgs:
out.write(';%s\n%s\n\n\n' % (msg, msg))
def pot_to_langfiles():
"""Update the lang files in /locale/templates with extracted
strings."""
all_msgs = po_msgs()
root = 'templates'
# Start off with some global lang files so that strings don't
# get duplicated everywhere
main_msgs = parse_lang(lang_file('main.lang', root))
main_msgs.update(parse_lang(lang_file('base.lang', root)))
main_msgs.update(parse_lang(lang_file('newsletter.lang', root)))
# Walk through the msgs and put them in the appropriate place. The
# complex part about this is that templates can specify a list of
# lang files to pull from, so we need to check all of them for the
# strings and add it to the first lang file specified if not
# found.
for path, msgs in all_msgs.items():
target = None
lang_files = None
if is_template(path):
# If the template explicitly specifies lang files, use those
lang_files = [lang_file('%s.lang' % f, root)
for f in parse_template(join(settings.ROOT, path))]
# Otherwise, normalize the path name to a lang file
if not lang_files:
lang_files = [lang_file(get_lang_path(path), root)]
else:
# All other sources use the first main file
lang_files = [lang_file('%s.lang' % settings.DOTLANG_FILES[0],
root)]
# Get the current translations
curr = {}
for f in lang_files:
if os.path.exists(f):
curr.update(parse_lang(f))
# Add translations to the first lang file
target = lang_files[0]
if not os.path.exists(target):
d = os.path.dirname(target)
if not os.path.exists(d):
os.makedirs(d)
with codecs.open(target, 'a', 'utf-8') as out:
for msg in msgs:
if msg not in curr and msg not in main_msgs:
out.write(';%s\n%s\n\n\n' % (msg, msg))
def translations_for_template(template_name):
"""
Return the list of available translations for the template.
:param template_name: name of the template passed to render.
:return: dict, like {'en-US': 'English (US)', 'fr': 'Français'}
"""
lang_files = [get_lang_path(template_name)]
template = get_template(template_name)
lang_files.extend(parse_template(template.template.filename))
active_translations = {}
for lf in lang_files:
active_translations.update(get_translations_for_langfile(lf))
return active_translations
def translations_for_template(template_name):
"""
Return the list of available translations for the template.
:param template_name: name of the template passed to render.
:return: list, like ['en-US', 'fr']
"""
lang_files = [get_lang_path(template_name)]
template = get_template(template_name)
lang_files.extend(parse_template(template.template.filename))
active_translations = []
for lf in lang_files:
active_translations.extend(get_translations_for_langfile(lf))
return active_translations
def render(request, template, context=None, **kwargs):
"""
Same as django's render() shortcut, but with l10n template support.
If used like this::
return l10n_utils.render(request, 'myapp/mytemplate.html')
... this helper will render the following template::
l10n/LANG/myapp/mytemplate.html
if present, otherwise, it'll render the specified (en-US) template.
"""
context = {} if context is None else context
# Make sure we have a single template
if isinstance(template, list):
template = template[0]
# Every template gets its own .lang file, so figure out what it is
# and pass it in the context
context['langfile'] = get_lang_path(template)
# Get the available translation list of the current page
context['translations'] = get_translations(context['langfile'])
# Look for localized template if not default lang.
if hasattr(request, 'locale') and request.locale != settings.LANGUAGE_CODE:
# redirect to default lang if locale not active
if not (settings.DEV or
lang_file_is_active(context['langfile'], request.locale)):
return HttpResponseRedirect('/' + '/'.join([
settings.LANGUAGE_CODE,
split_path(request.get_full_path())[1]
]))
localized_tmpl = '%s/templates/%s' % (request.locale, template)
try:
return django_render(request, localized_tmpl, context, **kwargs)
except TemplateDoesNotExist:
# If not found, just go on and try rendering the parent template.
pass
return django_render(request, template, context, **kwargs)
def merge_lang_files(langs):
all_msgs = po_msgs()
for lang in langs:
print "Merging into %s..." % lang
# Start off with some global lang files so that strings don't
# get duplicated everywhere
main_msgs = parse_lang(lang_file("main.lang", lang))
main_msgs.update(parse_lang(lang_file("base.lang", lang)))
main_msgs.update(parse_lang(lang_file("newsletter.lang", lang)))
for path, msgs in all_msgs.items():
target = None
lang_files = None
if is_template(path):
# If the template explicitly specifies lang files, use those
lang_files = [lang_file("%s.lang" % f, lang) for f in parse_template(join(settings.ROOT, path))]
# Otherwise, normalize the path name to a lang file
if not lang_files:
lang_files = [lang_file(get_lang_path(path), lang)]
else:
# All other sources use the first main file
lang_files = [lang_file("%s.lang" % settings.DOTLANG_FILES[0], lang)]
# Get the current translations
curr = {}
for f in lang_files:
if os.path.exists(f):
curr.update(parse_lang(f))
# Add translations to the first lang file
target = lang_files[0]
if not os.path.exists(target):
d = os.path.dirname(target)
if not os.path.exists(d):
os.makedirs(d)
with codecs.open(target, "a", "utf-8") as out:
for msg in msgs:
if msg not in curr and msg not in main_msgs:
out.write(";%s\n%s\n\n\n" % (msg, msg))
def render(request, template, context=None, **kwargs):
"""
Same as django's render() shortcut, but with l10n template support.
If used like this::
return l10n_utils.render(request, 'myapp/mytemplate.html')
... this helper will render the following template::
l10n/LANG/myapp/mytemplate.html
if present, otherwise, it'll render the specified (en-US) template.
"""
context = {} if context is None else context
# Every template gets its own .lang file, so figure out what it is
# and pass it in the context
context['langfile'] = get_lang_path(template)
# Get the available translation list of the current page
context['translations'] = get_translations(context['langfile'])
# Look for localized template if not default lang.
if hasattr(request, 'locale') and request.locale != settings.LANGUAGE_CODE:
# redirect to default lang if locale not active
if not (settings.DEV
or lang_file_is_active(context['langfile'], request.locale)):
return HttpResponseRedirect('/' + '/'.join([
settings.LANGUAGE_CODE,
split_path(request.get_full_path())[1]
]))
localized_tmpl = '%s/templates/%s' % (request.locale, template)
try:
return django_render(request, localized_tmpl, context, **kwargs)
except TemplateDoesNotExist:
# If not found, just go on and try rendering the parent template.
pass
return django_render(request, template, context, **kwargs)
def render(request, template, context={}, **kwargs):
"""
Same as django's render() shortcut, but with l10n template support.
If used like this::
return l10n_utils.render(request, 'myapp/mytemplate.html')
... this helper will render the following template::
l10n/LANG/myapp/mytemplate.html
if present, otherwise, it'll render the specified (en-US) template.
"""
# Every template gets its own .lang file, so figure out what it is
# and pass it in the context
context['langfile'] = get_lang_path(template)
# Look for localized template if not default lang.
if request.locale != settings.LANGUAGE_CODE:
# redirect to default lang if locale not active
if not (settings.DEV or
lang_file_is_active(context['langfile'], request.locale)):
return HttpResponseRedirect('/' + '/'.join([
settings.LANGUAGE_CODE,
split_path(request.get_full_path())[1]
]))
localized_tmpl = '%s/templates/%s' % (request.locale, template)
try:
return django_render(request, localized_tmpl, context, **kwargs)
except TemplateNotFound:
# If not found, just go on and try rendering the parent template.
pass
return django_render(request, template, context, **kwargs)
