如何将if语句放入jinja2的宏中?

Question

我有以下宏，如果可能的话，我想在其中放入if语句。

{% macro input(name, plc, required=true, type='text', class='validate') -%}
<input name="{{ name }}" placeholder="{{ plc }}" type="{{ type }}" class="{{ class }}" value="{{ session.get(name) }}" { % if required %} required {% endif %}>
{%- endmacro %}

因此，它抛出以下错误:

jinja2.exceptions.TemplateSyntaxError: Encountered unknown tag 'endif'. Jinja was looking for the following tags: 'endmacro'. The innermost block that needs to be closed is 'macro'.

Answer 1

我猜是打错了，{ % if required %}多了一个白色字符，应该是{% if required %}