Hi all. In the past, I once proposed a decorate template tag, but it was
disapproved back then.
This would be another solution, to make the template language a lot more
powerful.
1. First you define a decorator, for the behaviour you'd like to have. The
"data" parameter indicates the receiving parameters.
{% define my_special_for "data" %}
{% if data %}
<ul>
{% for i in data %}
{% placeholder %}
{% endfor %}
</ul>
{% else %}
nothing found...
{% endif %}
{% enddefine %}
This definition can be used as follows:
{% decorate my_special_for data %}
<li>{{ i.value }}</li>
{% enddecorate %}
Not sure about the namings, but personally, I'm very convinced about this
appoach. There shouldn't be too much logic in the template tags itself.
Another nice thing is that the <ul> and </ul> tags happen to be in exact
the same scope which increases readability and the posibilities for
automatic validation.
An extended version would create a second {% placeholder %} block for the
"nothing found..." part.
If this is an acceptable appoach, I'm willing to contribute this to Django
core, and write unit-tests and such.
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