CODEWITHSUNDEEP
pythonjinja2
Alex G.P.
Alex G.P.

Reputation: 10028

Jinja2 variables in included template

I have parent template where settings variable and this template includes couple of other sub-templates where I want to reuse this variable. Unfortunately in children templates this variable is empty. How to fix it?

<!-- index.html -->
{%- set title= ' :: '.join((caption, page_title or '')) -%}
{%- set description= ' :: '.join((desc, meta_desc or '')) -%}
{%- block page_header -%}
  {% include 'parts/_header.html' %}

  <!-- I also tried do it with context without luck -->
  {% include 'parts/_header.html' %}
{%- endblock page_header -%}



<!-- parts/header.html -->
<header class="header-wrapper">
  <div class="header">
    <div class="title"><h1 class="title">{{ title|safe }}</h1></div>
    <div class="description">{{ description|safe }}</div>
  </div>
</header>

UPD: After small research I found that issue related to {% block %} section - in include tag is outside block then it is provided with document context. But for some reasons I'd like to keep it inside block.

Upvotes: 1

Views: 1922

Answers (1)

Eric Dauenhauer
Eric Dauenhauer

Reputation: 759

In my experience, this can be fixed by including your {% set %} declarations inside the {% block %} declarations. In your example:

<!-- index.html -->
{%- block page_header -%}
  {%- set title= ' :: '.join((caption, page_title or '')) -%}
  {%- set description= ' :: '.join((desc, meta_desc or '')) -%}
  {% include 'parts/_header.html' %}
{%- endblock page_header -%}

If you need to set the same variables outside the block, I would just put the same line twice, once outside the block and once inside. This seems imperfect to me, but I don't know another way.

Upvotes: 2

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