function test_filter_c2c_admin_post_navigation_orderby()
{
add_filter('c2c_admin_post_navigation_orderby', array($this, 'c2c_admin_post_navigation_orderby'), 10, 2);
$posts = $this->create_posts();
// Change post dates so post ordering by date is 3, 0, 2, 4, 1
$new_post_dates = array('2015-06-13 12:30:00', '2015-03-13 12:30:00', '2015-05-13 12:30:00', '2015-07-13 12:30:00', '2015-04-13 12:30:00');
foreach ($new_post_dates as $i => $date) {
$post = get_post($posts[$i]);
$post->post_date = $date;
wp_update_post($post);
}
$next_post = c2c_AdminPostNavigation::next_post();
$this->assertEquals($posts[0], $next_post->ID);
$previous_post = c2c_AdminPostNavigation::previous_post();
$this->assertEquals($posts[4], $previous_post->ID);
}
/**
* Register meta box.
*
* By default, the navigation is present for all post types. Filter
* 'c2c_admin_post_navigation_post_types' to limit its use.
*
* @param string $post_type The post type.
* @param string $type The mode for the meta box (normal, advanced, or side).
* @param WP_Post $post The post.
*/
public static function do_meta_box($post_type, $type, $post)
{
$post_types = apply_filters('c2c_admin_post_navigation_post_types', get_post_types());
if (!in_array($post_type, $post_types)) {
return;
}
$post_statuses = (array) apply_filters('c2c_admin_post_navigation_post_statuses', self::$post_statuses, $post_type, $post);
if ($post_statuses) {
foreach ($post_statuses as $i => $v) {
$GLOBALS['wpdb']->escape_by_ref($v);
$post_statuses[$i] = $v;
}
self::$post_statuses_sql = "'" . implode("', '", $post_statuses) . "'";
}
if (in_array($post->post_status, $post_statuses)) {
add_meta_box('adminpostnav', sprintf(__('%s Navigation', 'admin-post-navigation'), ucfirst($post_type)), array(__CLASS__, 'add_meta_box'), $post_type, 'side', 'core');
}
}
/**
* Register meta box
*
* By default, the navigation is present for all post types. Filter
* 'c2c_admin_post_navigation_post_types' to limit its use.
*
* @param string $post_type The post type
* @param string $type The mode for the meta box (normal, advanced, or side)
* @param WP_Post $post The post
* @return void
*/
public static function do_meta_box($post_type, $type, $post)
{
$post_types = apply_filters('c2c_admin_post_navigation_post_types', get_post_types());
if (!in_array($post_type, $post_types)) {
return;
}
$post_statuses = apply_filters('c2c_admin_post_navigation_post_statuses', self::$post_statuses, $post_type, $post);
self::$post_statuses_sql = "'" . implode("', '", array_map('esc_sql', $post_statuses)) . "'";
$label = self::_get_post_type_label($post_type);
if (in_array($post->post_status, $post_statuses)) {
add_meta_box('adminpostnav', sprintf(__('%s Navigation', 'admin-post-navigation'), ucfirst($post_type)), array(__CLASS__, 'add_meta_box'), $post_type, 'side', 'core');
}
}