views.py 文件源码

def get_canonical_language_list(language_list=None, request=None):
    """Returns a LanguageList object"""
    try:
        if language_list is None:
            language_list = LanguageList.objects.get(name=LanguageList.DEFAULT)
        elif language_list.isdigit():
            language_list = LanguageList.objects.get(id=language_list)
        else:
            language_list = LanguageList.objects.get(name=language_list)
    except LanguageList.DoesNotExist:
        if request:
            messages.info(
                request,
                "There is no language list matching"
                " '%s' in the database" % language_list)
        raise Http404
    return language_list