#27126: Use `namedtuple` in result of `{% regroup %}`
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Reporter: bmispelon | Owner: nobody
Type: Cleanup/optimization | Status: new
Component: Template system | Version: 1.10
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Changes (by timgraham):
* stage: Unreviewed => Accepted
Old description:
> Currently, `{% regroup %}` returns a list of dictionaries with two key
> (`grouper` and `list`).
>
> I propose chaning that to return a namedtuple with the same fields.
>
> This should be backwards-compatible because attribute access and key
> access inside template uses the same syntax.
>
> The added benefit would be that you could now write:
> {{{#!django
> {% regroup places by country as country_list %}
>
> <ul>
> {% for country, cities in country_list %}
> <li>{{ country }}
> <ul>
> {% for city in cities %}
> <li>{{ city.name }}: {{ city.population }}</li>
> {% endfor %}
> </ul>
> </li>
> {% endfor %}
> </ul>
>
> }}}
New description:
Currently, `{% regroup %}` returns a list of dictionaries with two key
(`grouper` and `list`).
I propose changing that to return a `namedtuple` with the same fields.
This should be backwards-compatible because attribute access and key
access inside template uses the same syntax.
The added benefit would be that you could now write:
{{{#!django
{% regroup places by country as country_list %}
<ul>
{% for country, cities in country_list %}
<li>{{ country }}
<ul>
{% for city in cities %}
<li>{{ city.name }}: {{ city.population }}</li>
{% endfor %}
</ul>
</li>
{% endfor %}
</ul>
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/27126#comment:2>
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