Wordpress add_rewrite_rule second argument not working

Question

I am trying to use add_rewrite_rule() to solve a pagination problem I am having. After a lot of research I know the answer. But it seems the second argument of add_rewrite_rule() is never working.

add_action( 'init', 'add_category_base_rewrite_rule' );
function add_category_base_rewrite_rule() {
  add_rewrite_rule(
    'publicacoes/(.+?)/page/?([0-9]{1,})/?$',
    'index.php?post_type=artigo&category_name=$matches[1]&paged=$matches[2]',
    'top' 
  );
}

I am using the plugin Debug This to check the rewrite rules

As you can see the second argument doesn't match what I put in my function. And no matter what I do it doesn't work.

I know the function is being called because it put my rule on the top.

What I am doing wrong?

Answer 1

on the rewrite flush, the rewrite rule created by the custom post type overwrite yours because the target is the same.

to avoid this, you can use this filter

const TAXONOMY_PUBLICACOES = "publicacoes";

add_filter(TAXONOMY_PUBLICACOES . "_rewrite_rules", function ($rules) {

    unset($rules["publicacoes/(.+?)/page/?([0-9]{1,})/?$"]);

    return $rules;

});