i need add wp_editor to custom page and update content

hi guys, sorry for my english…
i just need set in my page wp_editor AND save/update changes, actually i have the content into editor BUT i cant save it…
helpme please

if ( is_user_logged_in() ) {
$content = get_the_content();
$editor_id = ‘ideditor’;
wp_editor( $content, $editor_id, $settings = array(‘textarea_name’ => nametextarea, ‘textarea_rows’ => 8) );

} else {

the_content();