我不确定我想做的事情是否可行:我试图在父模板中获取一个块,以由父模板的子模板中包含的文件填写。
解释这一点的最好方法是一个测试用例:
File t1.djhtml:
<root>
<block t3_container>
{% block t3 %}This should be 'CONTENT'{% endblock %}
</block t3_container>
<block t2_container>
{% block t2 %}{% endblock %}
</block t2_container>
</root>
File t2.djhtml:
{% extends 't1.djhtml' %}
{% block t2 %}
<block t2>
{%- include 't3.djhtml' with context %}
</block t2>
{% endblock %}
File t3.djhtml:
{% block t3 %}
<block t3>
CONTENT
</block t3>
{% endblock %}
File test.py:
from jinja2 import Environment, FileSystemLoader
env = Environment(loader=FileSystemLoader(''))
t=env.get_template('t2.djhtml')
print t.render()
输出是:
<root>
<block t3_container>
This should be 'CONTENT'
</block t3_container>
<block t2_container>
<block t2>
<block t3>
CONTENT
</block t3>
</block t2>
</block t2_container>
</root>
The t2
块应该是空的,并且t3_container
应该有块t3
里面的内容。我该如何实现这个目标?
您可以在包含的文件中使用宏,但不是包含它,而是使用上下文导入宏。
T1.html
<root>
<block t3_container>
{% block t3 %}{% endblock %}
</block t3_container>
<block t2_container>
{% block t2 %}{% endblock %}
</block t2_container>
</root>
T2.html
{% extends 'T1.html' %}
{%- from 'T3.html' import inner, inner2 with context %}
{% block t3 %}
{{ inner2() }}
{% endblock %}
{% block t2 %}
<block t2>
{{ inner() }}
</block t2>
{% endblock %}
T3.html
{% macro inner2() %}
<block t3>
CONTENT '{{ foo+1 }}'
</block t3>
{% endmacro %}
{% macro inner() %}
hello
{% endmacro %}
test.py
from jinja2 import Environment, FileSystemLoader
env = Environment(loader=FileSystemLoader("."))
t = env.get_template("T2.html")
print(t.render({"foo": 122}))
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