I don't think it would be difficult to implement, either as a block
tag, or as a regular tag with context.
On Jul 4, 7:29 pm, Ben Kovitz <[EMAIL PROTECTED]> wrote:
> Is there an easy way in Django to do the following?
>
> In blah.html:
>
> <p>{{ buttonDecidedAtRunTime }} blah blah blah</p>
>
> In the Context passed to blah.html at run-time:
>
> buttonDecidedAtRunTime: '{% include "button4.html %}'
> thisPage: "/some/path"
>
> Naturally, the included template might be button1.html,
> button2.html, etc., depending on run-time decisions.
>
> In button4.html:
>
> <a href="{{ thisPage }}?action=button4action">html for button #4</
> a>
>
> The kicker is the {{ thisPage }} inside button4.html. I'm hoping to
> pass thisPage in the context sent to blah.html. This would make the
> code really simple. Of course, the code you see above will just show
> the string literal '{% include "button4.html %}' right in your
> browser.
>
> What's needed is something like eval for template tags. I could
> imagine:
>
> {% eval %}{% buttonDecidedAtRunTime %}{% endeval %}
>
> or maybe even better would be:
>
> {% eval buttonDecidedAtRunTime %}
>
> Is there a way to do this? If it's not already in Django, does it
> look easy to implement? I haven't yet implemented a custom tag, but I
> read the chapter in the book, and it doesn't look too hard. On the
> other hand, I don't want to spend days mired in it if it's hard.
>
> Or, is there a better way to do what I'm trying to do? Right now, I
> see two other options: render button4.html and pass the result as the
> value of buttonDecidedAtRunTime (this complicates the Python code a
> bit, since thisPage must be passed to the subroutine that decides
> which button to render); or use {% if %} tags in blah.html (kind of
> ugly, involves difficulties with parameter-passing, and we need to do
> this all over the place, though we could stuff the {% if %} logic into
> an included template).
>
> Ben Kovitzhttp://decisionero.com
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