change permalink of custom post type - wordpress

Question

I create new post type and set 'rewrite' => false then for set new permalink I use:
// add to our plugin init function
global $wp_rewrite;
$dariche_structure = '/d/%post_id%/%dariche%';
$wp_rewrite->add_rewrite_tag("%dariche%", '([^/]+)', "dariche=");
$wp_rewrite->add_permastruct('dariche', $dariche_structure, false);
// Add filter to plugin init function
add_filter('post_type_link', 'dariche_permalink', 10, 3);
// Adapted from get_permalink function in wp-includes/link-template.php
function dariche_permalink($permalink, $post_id, $leavename) {
$post = get_post($post_id);
$rewritecode = array(
'%year%',
'%monthnum%',
'%day%',
'%hour%',
'%minute%',
'%second%',
$leavename? '' : '%postname%',
'%post_id%',
'%category%',
'%author%',
$leavename? '' : '%pagename%',
);
if ( '' != $permalink && !in_array($post->post_status, array('draft', 'pending', 'auto-draft')) ) {
$unixtime = strtotime($post->post_date);
$category = '';
if ( strpos($permalink, '%category%') !== false ) {
$cats = get_the_category($post->ID);
if ( $cats ) {
usort($cats, '_usort_terms_by_ID'); // order by ID
$category = $cats[0]->slug;
if ( $parent = $cats[0]->parent )
$category = get_category_parents($parent, false, '/', true) . $category;
}
// show default category in permalinks, without
// having to assign it explicitly
if ( empty($category) ) {
$default_category = get_category( get_option( 'default_category' ) );
$category = is_wp_error( $default_category ) ? '' : $default_category->slug;
}
}
$author = '';
if ( strpos($permalink, '%author%') !== false ) {
$authordata = get_userdata($post->post_author);
$author = $authordata->user_nicename;
}
$date = explode(" ",date('Y m d H i s', $unixtime));
$rewritereplace =
array(
$date[0],
$date[1],
$date[2],
$date[3],
$date[4],
$date[5],
$post->post_name,
$post->ID,
$category,
$author,
$post->post_name,
);
$permalink = str_replace($rewritecode, $rewritereplace, $permalink);
} else { // if they're not using the fancy permalink option
}
return $permalink;
}
My new post type name is dariche.
My default permalink for all post in setting is: article/%post_id%/%postname%/.
Now, my permalink of my new post type is d/%post_id%/%postname%/. But it doesn't work and just show 404 Error! What is problem in my code?

Answer 1

it seems you just want to change the base of the new post type permalink. you can achieve this by setting up rewrite. When you registering the post type.
'rewrite' => array(
'slug' => 'd',
'with_front' => false,
)