Question

Django允许覆盖verbose_name的{{1}}和verbose_name_plural，这允许我们为非英语语言指定正确的复数形式的Model名称（例如{{} 1}}作为Model的复数而不是默认的Kandydaci，在波兰语中看起来很奇怪。）

然而，对于具有语法案例的语言来说，这远远不够。例如，Django Admin兴高采烈地向我们展示了类似的内容：

（其中Kandydat代表Kandydats - Zaznacz kandydat do zmiany是Select kandydat to change的名称

这是不正确的。在这句话中，模型名称应该显示在accusative case中，即Kandydat。但是，我不能简单地指定此Model的{{1}}为kandydata，因为这也会影响所有预期nominative case的地方 - 我找到了一个这样的地方所以远，这是表格列的标题：

这是不可理解的，因为表格标题应该被称为verbose_name而不是Model。

如何解决这个问题？

Answer 1

The string 'Select <verbose_name> to change' is declared inside the admin's main view

self.title = title % force_text(self.opts.verbose_name)

as a {{ title }} template variable

{% block content_title %}{% if title %}<h1>{{ title }}</h1>{% endif %}{% endblock %}

So, touching the built-in view is out of question. But there is another way of doing it! You see, Django Admin templates are full of {% block %}s acting as placeholders in order to override them. Read more at the official docs about overriding Admin templates.

So, to your question.

Under your project's root directory create a directory templates (if it doesn't exists already).
Under my_project/templates/ create another one, admin.
Under my_project/templates/admin/ create a file change_list.html.

Inside my_project/templates/admin/change_list.html put these:

{% extends 'admin/change_list.html' %}

{% load myutils_filters %}

{% comment %}
You have to create an app that will hold all common tags/filters
that are re-usable across your entire project.
The model class itself is passed as cl.model
{% endcomment %}

{% block content_title %}{{ block.super|to_accusative:cl.model }}{% endblock %}

Inside your myutils/templatetags/myutils_filters.py file put these:

from django import template
from django.utils.html import format_html
from django.utils.encoding import force_text

register = template.Library()

@register.filter()
def to_accusative(value, model):
    verbose_name = model._meta.verbose_name  # declared in Meta
    new_name = force_text(model.accusative case())  # a custom class method (lives in your Model)
    return format_html(value.replace(verbose_name, new_name))

Finally, under your app's models.py, under each model class define a classmethod method like this:

from django.db import models
from django.utils.translation import ugettext_lazy as _

class MyModel(models.Model):
    # model fields here

    def __str__():
        return self.a_field

    class Meta:
        verbose_name = 'verbose name'
        verbose_name_plural = 'verbose name plural'
        # accusative_case = 'accusative name case' # BAD. Raises error. Implement a class method intead ;)

    @classmethod
    def accusative_case(cls):
        # You'll define the Polish translation as soon as you run makemessages
        return _('Name in english of the accusative case')

Run manage.py makemessages, manage.py compilemessages, reload your browser and voila!

Note: The above may look a little hackish but it works brilliant. Tested locally and works.

如何让Django管理员尊重波兰语等语法案例？

1 个答案: