WooCommerce Url rewrites - wordpress

Question

I've got the same problem described in this post:
[WordPress URL rewrite for WooCommerce attributes, except that I need to filter by attribute not only inside a category.
Unfortunately, I cannot post a comment before reaching a higher reputation, so I'm creating a new question.
I defined a manufacturer attribute and if I want to browse all products from a certain manufacturer, I can use a url like www.example.com/shop/?filter_manufacturer=230, where 230 is the attribute ID.
I tried adding a endpoint, like suggested in the post linked above above, but I cannot get the rewrites working; for example, if I try to open www.example.com/shop/manufacturer/manufacturer_name I get a 404 error.
It's not clear to me if I should change anything in the permalink settings in Wordpress and, if yes, how.
I've always flushed the rewrite rules after every edit, BTW.

Answer 1

The missing link between your question regarding WooCommerce attributes and the linked answer is that product attributes are merely taxonomies with a 'pa_' appended to their name.
In your case the taxonomy is called "pa_manufacturer". WooCommerce sets these up by default to have no query var attached.
So in lieu of filtering query_vars we are going to target when WooCommerce registers that particular taxonomy. I've also modified to remove anonymous functions.
In my example I am using "color", so adjust to "manufacturer". I was able to then go to a URL of http://example.com/shop/color/black and see all the black products. Note that this doesn't get you a term archive where /shop/color will list all the colors. That is a different question and a lot more work.
I didn't test the activation part, so if you get 404s after activating you can just delete the whole activation function and simply go to Settings>Permalinks and save the permalinks again.
/**
* Plugin Name: Add an WooCommerce attribute endpoint to the URLs
* Plugin URI: http://stackoverflow.com/q/28460538/383847
* Credit to: http://stackoverflow.com/a/24331768/1287812
*/
function so_28460538_add_rewrite_endpoint(){
add_rewrite_endpoint( 'color', EP_ALL );
}
add_action( 'init', 'so_28460538_add_rewrite_endpoint' );
function so_28460538_attribute_args( $args ){
$args['query_var'] = 'color';
return $args;
}
add_filter( 'woocommerce_taxonomy_args_pa_color', 'so_28460538_attribute_args' );
/**
* Refresh permalinks on plugin activation
* Source: http://wordpress.stackexchange.com/a/108517/12615
*/
function WCM_Setup_Demo_on_activation(){
if ( ! current_user_can( 'activate_plugins' ) )
return;
$plugin = isset( $_REQUEST['plugin'] ) ? $_REQUEST['plugin'] : '';
check_admin_referer( "activate-plugin_{$plugin}" );
add_rewrite_endpoint( 'color', EP_ALL ); #source: http://wordpress.stackexchange.com/a/118694/12615
flush_rewrite_rules();
}
register_activation_hook( __FILE__, 'WCM_Setup_Demo_on_activation' );
EDIT
Adding some screenshots of my settings in case it will help determine why you are getting 404s:
Here are my permalinks settings:
and here is the WooCommerce setting for determining the product archive page:
And finally, here is the result of visting:
http://local.wordpress.dev/shop/color/black/
Where shop is the pretty permalink for the product archive page set above. All items have a 'black' color attribute.

Answer 2

I had a similar problem and was able to solve it like this:
function add_model_taxonomy_args($args) {
$args['query_var'] = 'filter_model';
return $args;
}
add_filter('woocommerce_taxonomy_args_pa_model', 'add_model_taxonomy_args' );
function custom_rewrite_rules() {
add_rewrite_tag('%filter_model%', '([a-zA-Z0-9-]+)');
add_rewrite_rule('^c/phone-cases/(.+?)/?$', 'index.php?product_cat=phone-cases&filter_model=$matches[1]', 'top');
}
add_action('init', 'custom_rewrite_rules', 10, 2);
Sample Url: c/phone-cases/iphone-8-plus/
Resulting Rewrite: index.php?product_cat=phone-cases&filter_model=iphone-8-plus