Django:如何强制翻译成模板内的给定语言? [英] Django: How to force translation into a given language inside a template?
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问题描述
在 Django 模板中,我需要将一些字符串翻译成一种特定的语言(不同于当前的语言).
In a Django template, I need to transanlate some strings to a specific language (different from current one).
我需要这样的东西:
{% tans_to "de" "my string to translate" %}
or
{% blocktrans_to "de" %}my bloc to translate {% endblocktrans_to %}
强制翻译成德语.
我知道我可以在视图中调用以下代码:
I know I can call the following code in a view:
gettext.translation('django', 'locale', ['de'], fallback=True).ugettext("my string to translate")
我需要创建特定的模板标签吗?或者它是否已经在 Django 中存在一个专用标签?
Do I need to create a specific template tag ? Or does it already exist a dedicated tag in Django ?
推荐答案
templatetags/trans_to.py:
templatetags/trans_to.py:
from django.utils import translation
from django.utils.translation import ugettext
from django.template import Library, Node, Variable, TemplateSyntaxError
register = Library()
class TransNode(Node):
def __init__(self, value, lc):
self.value = Variable(value)
self.lc = lc
def render(self, context):
translation.activate(self.lc)
val = ugettext(self.value.resolve(context))
translation.deactivate()
return val
def trans_to(parser, token):
try:
tag_name, value, lc = token.split_contents()
except ValueError:
raise TemplateSyntaxError, "%r tag requires arguments" % token.contents.split()[0]
if not (lc[0] == lc[-1] and lc[0] in ('"', "'")):
raise TemplateSyntaxError, "%r locale should be in quotes" % tag_name
return TransNode(value, lc[1:-1])
register.tag('trans_to', trans_to)
html:
{% load trans_to %}
{# pass string #}
<p>{% trans_to "test" "de" %}</p>
<p>{% trans "test" %}</p>
{# pass variable #}
{% with "test" as a_variable %}
<p>{% trans_to a_variable "de" %}</p>
<p>{% trans a_variable %}</p>
{% endwith %}
结果:
<p>test in deutsch</p>
<p>test</p>
<p>test in deutsch</p>
<p>test</p>
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