将模板字符串传递给 Jinja 宏

Question

我想从宏渲染模板字符串。我尝试使用以下宏来执行此操作，该宏使用 呈现模板{{ comment|safe }}，但模板中的变量（例如，按{{ name }}字面呈现而不是使用name. 如何在宏参数中允许可变数据？

{% macro comment_el(image_url, name, comment) %}
  <div class="media no-border-top">
    <div class="media-left">
      <a href="{{ outgoing_url }}" >
        <img class="media-object" src="{{ image_url }}" />
      </a>
    </div>
    <div class="media-body">
      <h4 class="media-heading"><a href="{{ outgoing_url }}" >{{ name }}</a></h4>
      <p>{{ comment|safe }}</p>
    </div>
  </div>
{% endmacro %}

{{ comment_el(
    url_for("static", filename="img/c01.jpg"),
    "Some Name",
    "This comment is amazing. All I want to say is that {{ name }} is an amazing person"
) }}

输出：

<p>This comment is amazing. All I want to say is that {{ name }} is an amazing person</p>

Answer 1

那是不可能的。

但是，您可以使用callerin Jinja 宏来传递块：

{% macro comment_el(image_url, name) %}
    ...
    <div class="media-body">
      <p>{{ caller() }}</p>
    </div>
    ...
{% endmacro %}

然后像这样调用它：

{% call comment_el(url_for("static", filename="img/c01.jpg"), "Some Name") -%}
    This comment is amazing. All I want to say is that {{ name }} is an amazing person 
{%- endcall %}

相关文档：http : //jinja.pocoo.org/docs/2.9/templates/#call

解决它的另一种选择是：

{% set comment -%}
    This comment is amazing. All I want to say is that {{ name }} is an amazing person
{%- endset %}
{{ comment_el(url_for("static", filename="img/c01.jpg"),
    "Some Name",
    comment
) }}

相关文档：http : //jinja.pocoo.org/docs/2.9/templates/#block-assignments

为了完整起见，您还可以使用格式：

{{ comment_el(url_for("static", filename="img/c01.jpg"),
"Some Name",
"This comment is amazing. All I want to say is that %s is an amazing person" | format(name)
) }}