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<?php
/**
** Generic Feature
** Version 1.0.0
**/
define( 'GENERIC_FEATURE_VERSION', 1 );
class Generic_Feature {
const REVISION = 1;
const SCRIPTS_VERSION = 1;
const OPTION_VERSION = 'generic_feature_version';
// Post Types
const POST_TYPE_SLUG = 'generic-feature';
const POST_TYPE_NAME = 'Generic Features';
const POST_TYPE_SINGULAR = 'Generic Feature';
const POST_TYPE_CAP = 'post';
private $version = false;
// Define and register singleton
private static $instance = false;
public static function instance() {
if( ! self::$instance ) {
self::$instance = new self;
self::$instance->setup();
}
return self::$instance;
}
/**
* Constructor
*
* @since 1.0.0
*/
private function __construct() { }
/**
* Clone
*
* @since 1.0.0
*/
private function __clone() { }
/**
* Add actions and filters
*
* @uses add_action, add_filter
* @since 1.0.0
*/
function setup() {
// Version Check
if( $version = get_option( self::OPTION_VERSION, false ) ) {
$this->version = $version;
} else {
$this->version = GENERIC_FEATURE_VERSION;
add_option( self::OPTION_VERSION, $this->version );
}
// Add Meta Boxes
if( '3.0' <= $wp_version ) { // The `add_meta_boxes` action hook did not exist until WP 3.0
add_action( 'add_meta_boxes', array( $this, 'action_add_meta_boxes' ) );
} else {
add_action( 'admin_init', array( $this, 'action_add_meta_boxes' ) );
}
add_action( 'init', array( $this, 'action_init_check_version' ) );
add_action( 'init', array( $this, 'action_init_register_post_types' ) );
}
/**
* Version Check
*
* @since 1.0.0
*/
function action_init_check_version() {
// Check if the version has changed and if so perform the necessary actions
if ( ! isset( $this->version ) || $this->version < GENERIC_FEATURE_VERSION ) {
// Do version upgrade tasks here
update_option( self::OPTION_VERSION, GENERIC_FEATURE_VERSION );
}
}
/**
* Add the Generic Feature metabox
*
* @uses add_meta_box
* @since 1.0.0
* @return null
*/
function action_add_meta_boxes() {
add_meta_box( self::POST_TYPE_SLUG . '-metabox', self::POST_TYPE_SINGULAR . __( ' Meta Box' ), array( $this, 'render_metabox' ), self::POST_TYPE_SLUG, 'side', 'default' );
}
/**
* Remder the Generic Feature metabox
*
* @since 1.0.0
* @return null
*/
function render_metabox() {
echo '<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus malesuada ullamcorper.</p>';
}
/**
* Register custom post type(s)
*
* @uses register_post_type
* @since 1.0.0
* @return null
*/
public function action_init_register_post_types() {
// Register the post type
register_post_type( self::POST_TYPE_SLUG, array(
'labels' => array(
'name' => __( self::POST_TYPE_NAME ),
'singular_name' => __( self::POST_TYPE_SINGULAR ),
'add_new_item' => __( 'Add New ' . self::POST_TYPE_SINGULAR ),
'edit_item' => __( 'Edit ' . self::POST_TYPE_SINGULAR ),
'new_item' => __( 'New ' . self::POST_TYPE_SINGULAR ),
'view_item' => __( 'View ' . self::POST_TYPE_SINGULAR ),
'search_items' => __( 'Search' . self::POST_TYPE_NAME ),
),
'public' => true,
'capability_type' => self::POST_TYPE_CAP,
'has_archive' => true,
'show_ui' => true,
'show_in_menu' => true,
'hierarchical' => true,
'supports' => array( 'title', 'editor', 'page-attributes', 'thumbnail' ),
) );
}
} // Class
Generic_Feature::instance();
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