Jinja2: Create new row for every 3 items

Question

Currently for every article in articles a new div with class span4 is created. Instead for each row I would like to limit it\'s content to three span\'s and create a new row on

Answer 1

You can use loop.index0 and loop.last inside the for loop. Here is the for-loop documentation.

Example:

{% extends "base.html" %}
{% block content %}

  

  

      {% for article in articles %}
      {% if loop.index0 % 3 == 0 %}
      

      {% endif %}
          

              ...
          
      {% if loop.index0 % 3 == 2 or loop.last %}
      
      {% endif %}
      {% endfor %}
  

{% endblock %}

The loop.last clause should close the last row even if there were less than 3 items.

should start when loop.index0 gives 0 as the remainder and should end when 2 is the remainder

Another alternative would be to group the items into rows before passing them into the template, then you can just issue two for-loops one inside the other.

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