如何在模板标签中使用Django模板变量

Question

I've defined a custom tag function and am trying to pass two arguments into the function that are derived from the array I'm looping through.

Essentially, I'm trying to do something akin to the following:

{% for x in array %}
  {% custom_tag_function {{ forloop.counter }} {{ array|length }} %}
{% endfor %}

However I'm receiving a parsing error as django is passing in the argument as a string (eg "{{ forloop.counter }}" ) instead of the evaluated value.

I tried to do this:

{% for x in array %}
  {% with cnt={{ forloop.counter }} len={{ array|length }} %}
    {% custom_tag_function cnt len %}
{% endfor %}

But I receive the same parsing error.

Is there a proper way to do this within django?

Answer 1

As noted by Mehdi in his comment above, the following solves the problem:

{% for x in array %}
  {% custom_tag_function forloop.counter array|length %}
{% endfor %}