Find below code to create custom post type with their custom taxonomies.

//Create Custom Post in wordpess
add_action( ‘init’, ‘create_post_type’ );
function create_post_type() {
register_post_type( ‘custom_post’,
array(
‘labels’ => array(
‘name’ => __( “Custom Post” ),
‘singular_name’ => __( ‘Custom’ )
),
‘public’ => true,
‘has_archive’ => true,
‘supports’ => array(‘title’,’editor’,’thumbnail’),
‘taxonomies’ => array(‘topics’),
)
);
}
//hook into the init action and call custom taxonomies
add_action( ‘init’, ‘create_topics_hierarchical_taxonomy’, 0 );

//create a custom taxonomy name it topics for your posts

function create_topics_hierarchical_taxonomy() {

// Add new taxonomy, make it hierarchical like categories
//first do the translations part for GUI

$labels = array(
‘name’ => _x( ‘Topics’, ‘taxonomy general name’ ),
‘singular_name’ => _x( ‘Topic’, ‘taxonomy singular name’ ),
‘search_items’ => __( ‘Search Topics’ ),
‘all_items’ => __( ‘All Topics’ ),
‘parent_item’ => __( ‘Parent Topic’ ),
‘parent_item_colon’ => __( ‘Parent Topic:’ ),
‘edit_item’ => __( ‘Edit Topic’ ),
‘update_item’ => __( ‘Update Topic’ ),
‘add_new_item’ => __( ‘Add New Topic’ ),
‘new_item_name’ => __( ‘New Topic Name’ ),
‘menu_name’ => __( ‘Topics’ ),
);

// Now register the taxonomy

register_taxonomy(‘topics’,array(‘post’), array(
‘hierarchical’ => true,
‘labels’ => $labels,
‘show_ui’ => true,
‘show_admin_column’ => true,
‘query_var’ => true,
‘rewrite’ => array( ‘slug’ => ‘topic’ ),
));

}

Find below code for resume attachment in “Simple Job Board” wordpress plugin.

add_filter(‘sjb_hr_notification_attachment’, ‘custom_code_for_hr_resume_attachment’, 20, 2);

function custom_code_for_hr_resume_attachment( $resume_path, $post_id ){
return get_post_meta($post_id, ‘applicant_resume’, TRUE);
}