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I wanted to change the slug of a certain post type (in this case, article) into whatever a certain value in its custom field.

I went to functions.php and put this code.

function na_remove_slug( $post_link, $post, $leavename ) {

if ( 'article' != $post->post_type || 'publish' != $post->post_status ) {
    return $post_link;
} 

# get the custom field value here to be the slug
$post_name = get_field('filter_category', $post->ID)->post_name; 
# replace the "article" by the value of the custom field
$post_link = str_replace( '/' . $post->post_type . '/', "/$post_name/", $post_link ); 
    return $post_link;
}
add_filter( 'post_type_link', 'na_remove_slug', 10, 3 );

When I query the custom post types, it appears as if its slug was altered, for example: www.example.com/article/some-title into www.example.com/design/some-title

Where design is my custom field value.

But when I finally visit www.example.com/design/some-title, I get a 404. But if I visit www.example.com/article/some-title, it returns the correct web page.

I understand that my code only changes how the link appears when it is displayed, but how can I show my single post correctly using the slug that I have altered?

If you need more clarification, please don't hesitate to comment.

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You can try this plugin, I think this will work for you. You can directly change the URL on your page by clicking on URL to whatever you want.

Hope this would be helpfull.

  • Hi Baikare! I already have that plugin. But unfortunately, I need to do the URL rewriting programmatically, as I have existing posts already. It will be too much if I rewrite all of them individually. Thank you though! – Bwrites Jul 23 '18 at 13:08

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