如何在jinja2模板中过滤集合？

Question

我有一个如下所示的namedtuples集合：

[('mountpoint=X',state='UP'),(mountpoint='Y',state='DOWN'),(mountpoint='Z',state='DOWN'...)]

我将此收藏集传递给我的模板之一。 我想根据状态过滤该集合。 尝试以下无济于事

  {% for state in states|selectattr('state','down') %}
TemplateRuntimeError: no test named 'down'

  {% for state in states|selectattr(state='down') %}
FilterArgumentError: Missing parameter for attribute name

  {% for state in states|select(state='down') %}
No error, but doesn't filter at all.

Answer 1

使用equalto测试：

{% for state in states|selectattr('state', 'equalto', 'down') %}