Question

我是Django和Sharma的开端人,我使用Django时遇到了问题。我希望在模板中使用一个过滤器,使我感到需要,但以下结果并非我所期望的结果。

# filter definition

@register.filter
def to_class_name(obj):
    return obj.__class__.__name__

# HTML template for UpdateView (This template will be used by multiple models.)
# object = Order()

{{ object|to_class_name }} #reulst: Order

{{  wms |add:object|to_class_name }} #result: str, expect: object

我大致理解,问题在于此命令,但似乎我可以加上括号来加以修改。


{{  wms |add:(object|to_class_name) }} #cause SyntaxError

是否有办法解决这一问题? 或者,在多个模型共用一个模板时,如何确定第一页数据? 谢谢大家。

Answer 1

I roughly understand that the issue lies with the order, but it seems I can t add parentheses to modify it.

You can use variables. link

The variable is available until the {% endwith %} tag appears.

eg.

{% with firstname="Tobias" %}
<h1>Hello {{ firstname }}, how are you?</h1>
{% endwith %}

在你看来,情况就是如此。

{% with class_name=object|to_class_name %}
   {{  wms |add:class_name }}
{% endwith %}

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