Example WordPress custom post type and taxonomy definitions using Extended CPTs and Extended Taxos

gistfile1.php

register_extended_post_type(
	'newsletter',
	array(
		'capability_type' => 'post',
		'hierarchical'    => false,
		'menu_position'   => 45,
		'quick_edit'      => false,
		'supports'        => array( 'title', 'editor', 'thumbnail' ),
		'admin_cols'      => array(
			'newsletter-image' => array(
				'title'          => 'Featured image',
				'featured_image' => 'thumbnail',
				'width'          => '150'
				),
			'newsletter-sent' => array(
				'title'       => 'Sent',
				'meta_key'    => 'nfa-newsletter-sent',
				'date_format' => true
				),
			'newsletter-recipients' => array(
				'title'    => 'Recipients',
				'function' => array( $this, 'recipients_col' )
				),
			'newsletter-type' => array(
				'title'    => 'Type',
				'taxonomy' => 'newsletter-type'
				),
			'newsletter-stats' => array(
				'title'    => 'Statistics',
				'function' => array( $this, 'stats_col' )
				)
			),
		'admin_filters'    => array(
			'newsletter_type' => array(
				'title'    => 'View by type',
				'taxonomy' => 'newsletter-type'
				)
			)
		)
	);

register_extended_taxonomy(
	'newsletter-type',
	'newsletter',
	array(
		'hierarchical' => false,
		'show_ui'      => true,
		'meta_box'     => 'radio'
		),
	array(
		'singular' => 'Type',
		'plural'   => 'Types',
		'slug'     => 'newsletter-type'
		)
	);

https://github.com/johnbillion/extended-cpts and https://github.com/johnbillion/extended-taxos