#361: Some Basic Math Filters
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Reporter: ilikeprivacy@… | Owner: adrian
Type: defect | Status: closed
Component: Template system | Version:
Severity: normal | Resolution: wontfix
Keywords: filter math | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by will@…):
I would like to have a "subtract" filter for this use case:
I want to only show the first 10 items in a list, then have a final line
saying how many other items there were,
E.g.
"And 3 other items..."
This is purely a display (template) logic, so it should be supported by
the template language (same as 'add').
{{{
{% for l in list_items %}
{% if forloop.counter < 10 %}
<li>l </li>
{% else %}
{% ifequal forloop.counter 10 %}
<li>
And {{ list_items|length|subtract:10 }} other objects...
</li>
{% endifequal %}
{% endif %}
{% endfor %}
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/361#comment:20>
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