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1. Sebastien Couture
   Member
   Posted 2 years ago #
   

   I've got a custom post type for which I wanted to modify the URL to show the name of the product and the brand name, (a taxonomy).

   Here is my code

   <blockquote>
   
   add_filter('post_type_link', 'custom_post_link', 1, 3);
   
   function custom_post_link( $post_link, $id = 0 )
   {
   	$post = get_post($id);
   	if ( is_object($post) || $post->post_type == 'products' )
   	{
   		$terms = wp_get_object_terms($post->ID, 'brands');
   		if ($terms)
   		{
   			return $post_link . '-by-' . $terms[0]->slug . '.html';
   		}
   	}
   	else
   	{
   		return $post_link;
   	}
   }</blockquote>

   When I save my post, the permalink generates properly to
   /products/name-of-my-product-by-brand.html and the URLs are shown correctly when called with the_permalink(). Just one problem, calling the URL return a 404. Is there a custom rewrite rule I need to put in place in addition to the filter.

2. Sebastien Couture
   Member
   Posted 2 years ago #
   

   bump

3. Andy Macaulay-Brook
   Member
   Posted 2 years ago #
   

   Don't know if this is the cause, but your add_filter call specifies 3 parameters and your function only takes 2.

   If you look at the WordPress source, this filter takes 4 parameters.

   The docs for add_filter suggest that it does little or no error checking for performance reasons, so it might just be silently trying (& failing) to cope with the mismatch.

4. jorgecosgayon
   Member
   Posted 2 years ago #
   

   Just rebuild your permalink structure from the dashboard - just hit the save changes button and your htaccess should be changed to recognize your new structure

5. dashaluna
   Member
   Posted 2 years ago #
   

   @jorgecosgayon, thanks for that. I've spent a day and a bit trying to figure out why I was getting 404 after adding a rewrite rule in my register_post_type ... I just hit Save Changes button on the Perpalinks Settings screen and all works now.

6. mighty_mt
   Member
   Posted 2 years ago #
   

   Just wanted to say that @jorgecosgayon's comment helped me as well.
   I went to the "Permalinks" Settings page and clicked "Save Changes" without changing anything and now my new custom post type seems to work perfectly.

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