Django: cannot pass variable to included template? - django

Question

I got a problem where I want to use template including in Django.
Here is the real example:
I got 3 files:
home.html (will get the context variable passed from Views)
base.html (the skeleton template file)
and the header.html (included by base.html).
If I put the code below directly in base.html without including header.html, the {{title}} variable passed from home is correctly called. But if I include the header.html in base.html, the {{title}} variable's value cannot be called.
<title>{% block title %}{% endblock %} | {{ SITE_INFO_TITLE }}</title>
Is there any solution to this problem? Thanks.

Answer 1

Could you just pass in a variable within the {% include %} tag? It's documented here: https://docs.djangoproject.com/en/1.5/ref/templates/builtins/#include
{% include "name_snippet.html" with person="Jane" greeting="Hello" %}

Answer 2

As far as I know blocks and variable are distinct in django.
If you want to pass title as a context variable you have to set it using a declaration in base.html such as :
{% include "header.html"%}
Which in turn contains :
{% block title %} {{title}} {%endblock%}
You can also set it in home like this.
{% block title %} Home page {%endblock%}
But I also try to set in the template context.
Without the title block.
def test_view(ctx):
xa = { "title":"Sommaire"}
return render_to_response("test.html",xa)
I think you can also see the with template tag I think it is possible to set a context variable using this tag.

Answer 3

You can use Inclusion Tags to render an additional template from within a Django template. You can additionally pass the 'child' template context from the 'parent' template.
It's a little involved for your use case but it solves your problem. I tend to use it when I'm looping a list to render each item with a custom template. I can then reuse that template elsewhere without duplicating the markup if I need to render another item of the same type.