Queryset in an inherited Django Template

Question

I'm new to Django and Web programming in general. Have googled but could not find the answer I need. Here's the case:

I have a site, where every page in which the user is logged has certain navigation Menu. That's why they extend a template called base_logged.html, which is also extending base.html. The problem is that the navigation menu is partly populated by a database Query.

Is there a way of populating this without making tha query in every logged view ? Or some kinda View inheritance?

Sorry for my poor english.

score 3 · Accepted Answer · edited May 06 '15 at 08:51

3

Another option is to create a custom template tag (probably an inclusion tag) and put it in your base template.

So in your base template you could have something like this:

{% navigation_bar user %}

edited May 06 '15 at 08:51

mustafa.0x

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answered Mar 23 '12 at 01:49

Brian Neal

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score 0 · Answer 2 · answered Mar 22 '12 at 23:55

0

You can use context processors (Here's a good example). These allow you to make variables (querysets etc.) available in every view throughout your site. For example, make a file in one of your apps:

some_app.context_processors.my_context_processor.py

from some_app.models import Bar
def my_context_processor():
    return {
        'foo' : Bar.objects.all(),
    }

and in your settings.py

TEMPLATE_CONTEXT_PROCESSORS = (
    ...
    'some_app.context_processors.my_context_processor',
    ...
)

and you now have access in all your views/templates:

{{ foo }}

answered Mar 22 '12 at 23:55

Timmy O'Mahony

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That sounds nice. I will try it and then post my experience. Doesn't matter that not every page will make sense with the query? Because the query is based in the user... – lembon Mar 23 '12 at 00:10
`... def my_context_processor(request): ...` – Ryan Allen Sep 30 '13 at 18:02

Queryset in an inherited Django Template

2 Answers2