Question

I have some loop on the page and need list item depending from loop number.

When I call:

{{ mylist.1 }}
{{ mylist.2 }}
{{ mylist.3 }}

all works fine but what I really need is something like:

{% for x in somenumber|MyCustomRangeTag %}
    {{ mylist.x }}
{% endfor %}

MyCustomRangeTag gives me Python range() it works and I already have x as number. So x is 1, 2, 3 etc. depending from loop number.
Is this possible and how?

Answer 1

This is not possible directly because Django thinks that "x" is the key to lookup in mylist – instead of the value of x. So, when x = 5, Django tries to look up mylist["x"] instead of mylist[5].

Use the following filter as workaround:

@register.filter
def lookup(d, key):
    return d[key]

and use it like

{{ mylist|lookup:x }}