Duplicted metas

I think by default some metas are created with post creation and you are using add_post_meta instead of update_post_meta so if the meta exist, for some reason, this meta will be duplicated.

I checked update_post_meta docs and this method will update the meta if was found and if not will be created. Well if you put add_post_meta instead update_post_meta for some reason let me know.

I changed that and it works for me, no more duplicated metas in my new cloned posts.

    //Add the source post meta to the destination post
    foreach ( $data as $key => $values) {

       foreach ($values as $value) {

           update_post_meta( $post_id, $key, $value );

        }

    }
    
    //Copy the meta data collected from the sourse post to the new post
  	foreach ($meta_values as $key => $values) {

       foreach ($values as $value) {
            //If the data is serialised we need to unserialise it before adding or WordPress will serialise the serialised data
            //...which is bad
            if(is_serialized($value)){
             
                update_post_meta( $post_id, $key, unserialize($value));

            }else{

                update_post_meta( $post_id, $key, $value );

            }
           
        }

    }

Thanks.

• This reply was modified 9 years, 7 months ago by joedev91.