-
-
-def field_getter(name):
- @property
- def getter(self):
- val = getattr(self, "%s_%s" % (name, get_language()), None)
- if not val:
- val = getattr(self, "%s_%s" % (name, settings.LANGUAGE_CODE))
- return val
- return getter
-
-
-def add_translatable(model, fields, languages=None):
- """Adds some translatable fields to a model, and a getter."""
- if languages is None:
- languages = settings.LANGUAGES
- for name, field in fields.items():
- for lang_code, lang_name in languages:
- new_field = copy(field)
- if field.verbose_name:
- new_field.verbose_name = string_concat(field.verbose_name, ' [%s]' % lang_code)
- new_field.contribute_to_class(model, "%s_%s" % (name, lang_code))
- setattr(model, name, field_getter(name))
- # add setter?
-
-
-class MyLocaleRegexURLResolver(LocaleRegexURLResolver):
- """
- A URL resolver that always matches the active language code as URL prefix.
-
- Rather than taking a regex argument, we just override the ``regex``
- function to always return the active language-code as regex.
- """
- @property
- def regex(self):
- language_code = get_language()
- if language_code == settings.LANGUAGE_CODE:
- return re.compile('')
- if language_code not in self._regex_dict:
- regex_compiled = re.compile('^%s/' % language_code, re.UNICODE)
- self._regex_dict[language_code] = regex_compiled
- return self._regex_dict[language_code]
-
-
-def i18n_patterns(prefix, *args):
- """
- Adds the language code prefix to every URL pattern within this
- function. This may only be used in the root URLconf, not in an included
- URLconf.
-
- """
- pattern_list = patterns(prefix, *args)
- if not settings.USE_I18N:
- return pattern_list
- return pattern_list + [MyLocaleRegexURLResolver(pattern_list)]
-
-
-def add_translatable_index(index_class, fields, languages=None):
- """Adds some translatable fields to a search index, and a getter."""
- if languages is None:
- languages = settings.LANGUAGES
- for name, field in fields.items():
- for lang_code, lang_name in languages:
- new_field = copy(field)
- fname = "%s_%s" % (name, lang_code)
- new_field.index_fieldname = new_field.index_fieldname \
- and "%s_%s" % (new_field.index_fieldname, lang_code) \
- or fname
- new_field.model_attr = new_field.model_attr \
- and "%s_%s" % (new_field.model_attr, lang_code) \
- or fname
- setattr(index_class, fname, new_field)
- index_class.fields[fname] = new_field
-
-
-def translated_fields(field_names, languages=settings.LANGUAGES):
- return tuple("%s_%s" % (field_name, lang_code)
- for field_name in field_names
- for lang_code, lang_name in languages
- )