WordPress: Conditional Meta Box

gistfile1.txt

function create_meta_box() {

$post_id = $_GET['post'] ? $_GET['post'] : $_POST['post_ID'] ;
$template_file = get_post_meta($post_id,'_wp_page_template',TRUE);
  // check for a template type
  if ($template_file == 'homepage.php') {


	// add_meta_box( $id, $title, $callback, $post_type, $context, $priority, $callback_args );
	add_meta_box( 'new_meta_box', 'Home Page Blockquote', 'new_meta_box', 'page', 'side', 'low' );
}

}