Django版本2.1
我有一个应用程序，用于展示事件。我想展示事件发生的时间是多久以前或者多远的未来。为了实现这个功能，我使用了humanize包中的naturaltime模板标签。
{{ event.date|naturaltime }}
# my model in models.py
class Event(models.model):
# ... other fields
date = models.DateTimeField(...)
我希望结果是荷兰语，所以我在settings.py中更改了语言：LANGUAGE_CODE = 'nl-nl'
这里有一个问题： 当当前时间与模型中设置的日期时间之间的时间差大于24小时时，翻译仅部分完成。 以下是一些过去时间的示例：
# english
one hour ago
# dutch, correct
een uur geleden
# enlish
6 days, 2 hours ago
# dutch translation, only partial
6 dagen, 2 uur ago
未来时间的示例
# english
2 hours from now
# dutch translation, correct
over 2 uur
# enlish
1 month from now
# dutch translation, only partial
1 maand from now
正如您所看到的，当时间差大于24小时时，“ago”和“from now”的部分未被翻译。
我深入研究了源代码，并找到了以下相关信息，但仍然找不到罪魁祸首。当时间差超过1天时，Naturaltime调用默认的templatetag timesince/timeuntil。timesince templatetag可以正确翻译，但当结果传回naturaltime以添加“ago”和“from now”部分时，该结果根本没有被翻译。
# lines 211-292
@register.filter
def naturaltime(value):
"""
For date and time values show how many seconds, minutes, or hours ago
compared to current timestamp return representing string.
"""
if not isinstance(value, date): # datetime is a subclass of date
return value
now = datetime.now(utc if is_aware(value) else None)
if value < now:
delta = now - value
if delta.days != 0:
# Translators: delta will contain a string like '2 months' or '1 month, 2 weeks'
return _('%(delta)s ago') % {'delta': defaultfilters.timesince(value, now, time_strings={
# Translators: 'naturaltime-past' strings will be included in
# '%(delta)s ago'
'year': npgettext_lazy('naturaltime-past', '%d year', '%d years'),
'month': npgettext_lazy('naturaltime-past', '%d month', '%d months'),
'week': npgettext_lazy('naturaltime-past', '%d week', '%d weeks'),
'day': npgettext_lazy('naturaltime-past', '%d day', '%d days'),
'hour': npgettext_lazy('naturaltime-past', '%d hour', '%d hours'),
'minute': npgettext_lazy('naturaltime-past', '%d minute', '%d minutes')
})}
# some more elif and else
...
else:
delta = value - now
if delta.days != 0:
# Translators: delta will contain a string like '2 months' or '1 month, 2 weeks'
return _('%(delta)s from now') % {'delta': defaultfilters.timeuntil(value, now, time_strings={
# Translators: 'naturaltime-future' strings will be included in
# '%(delta)s from now'
'year': npgettext_lazy('naturaltime-future', '%d year', '%d years'),
'month': npgettext_lazy('naturaltime-future', '%d month', '%d months'),
'week': npgettext_lazy('naturaltime-future', '%d week', '%d weeks'),
'day': npgettext_lazy('naturaltime-future', '%d day', '%d days'),
'hour': npgettext_lazy('naturaltime-future', '%d hour', '%d hours'),
'minute': npgettext_lazy('naturaltime-future', '%d minute', '%d minutes')
})}
# some more elif and else
...
# line 259-262 and 302-305, seems working
msgid "an hour ago"
msgid_plural "%(count)s hours ago"
msgstr[0] "een uur geleden"
msgstr[1] "%(count)s uur geleden"
...
msgid "an hour from now"
msgid_plural "%(count)s hours from now"
msgstr[0] "over een uur"
msgstr[1] "over %(count)s uur"
# line 253-254 and 310-311, not working
msgid "%(delta)s ago"
msgstr "%(delta)s geleden"
...
msgid "%(delta)s from now"
msgstr "over %(delta)s"
我是做错了什么还是humanize包或荷兰语翻译文件中有bug？
PS. 我没有使用任何自定义翻译文件。
Django 2.1，但链接和代码来自于2.2（当前主版本）。这里是2.1版本代码的链接 https://github.com/django/django/blob/stable/2.1.x/django/contrib/humanize/templatetags/humanize.py - Ralf