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function change_the_upload_dir_on_fly( $params ){

	$post_id = isset( $_REQUEST['post'] ) ? $_REQUEST['post'] : false;
	if( !$post_id){
		$post_id = isset( $_REQUEST['post_id'] ) ? $_REQUEST['post_id'] : false;
	}

	if ( ! $post_id ) {
		return $params;
	}

	$post_type = get_post_type($post_id);

	if( $post_type == 'shop_order'){
		$params['path'] = WP_CONTENT_DIR.'/uploads/yith-customized-products';
		$params['url'] = WP_CONTENT_URL.'/uploads/yith-customized-products';
		$params['subdir'] = '/yith-customized-products';
	}


	return $params;
}
add_filter('upload_dir', 'change_the_upload_dir_on_fly');