> How can I cache the sub-template witch is included in the main
> template? And how can I ensure it won't be render(parse) the next
> request?
If you look at django.template.loader_tags.do_include you'll notice an
if statement that checks if the given argument was a string. If so it'll
use a ConstantIncludeNode rather than a normal IncludeNode. The constant
include node inlines the sub-template while the normal node does have to
look up that variable during render time.
Side notice: That's also the reason why you can't include templates
recursively with static strings but have to use a workaround like "{%
with "recursive.html" as template %}{% include template %}{% endwith %}"
or a custom template tag.
Caching the template is as easy as storing the result from get_template
in a global variable.
e.g.
from django.template.loader import get_template
foo_template = get_template('foobar.html')
def foo(request):
ctx = RequestContext(request)
ctx.update({'foo': True, 'bar': False})
return HttpResponse(foo_template.render(ctx))
Note: I'd rather lazy load the template in order to decouple things a
bit. Be aware of race conditions and better synchronize the template
loading. The above code snippet is only meant to give you the idea.
--mp
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