[wp-hackers] Date archive per category

[Jeremy Clarke]

On Sun, Nov 23, 2008 at 8:20 PM, Alex Hempton-Smith
<hempsworth at googlemail.com> wrote:
> Hi all,
>
>   - At the moment you can visit: www.mydomain.com/2008/11/ and you will
>   receive the "Archive for November, 2008".
>   - You can also visit www.mydomain.com/category/news/ and you will receive
>   the "Archive for the 'News' category".
>   - I would like URL's like: www.mydomain.com/category/news/2008/11/ and
>   receive the "Archive for the 'News' category from November, 2008".
>
> I think this method of being able to sort posts by category AND date would
> be a great addition for the core. Is this already possible somehow?

We have been doing this kind of archive for a long time now but pasing
in the raw url with the variables, like

site.com/index.php?cat=5&m=200810

This worked up until 2.5 when the canonical urls kicked in and started
forwarding those urls to just the category page. I think Mark Jaquith
patched core though so maybe those urls work now, but I think the more
you go into these special urls the more canonical urls will break
them, so you might want to consider turning off canonical urls for
some types, I did this for anything with a _GET value for "m" so that
i can have monthly archives for authors/cats etc. Here's the code in
case you need something similar:

// --------------------------------------------
// Filter redirect_canonical to disable it for ?m=
// --------------------------------------------
//
// End redirection any time there is a $m value in the url
// Passing FALSE to redirect_canonical filter ends redirection
// Needed for ?cat=x&m=y style urls to work. Otherwise you are
// forwarded to category without month.

// DISABLED: this turns off canonical redirection completely, which is
overkill. see above.
// remove_filter('template_redirect', 'redirect_canonical');

function gv_redirect_canonical($redirect_url) {
	global $wp_query, $wp;
	if ((int) $_GET['m']) return FALSE;
	return $redirect_url;
} //gv_redirect_canonical()

add_filter('redirect_canonical', 'gv_redirect_canonical');




-- 
Jeremy Clarke
Code and Design | globalvoicesonline.org