Restrict user posts

restrict-user-posts

/* ===== START RESTRICT USER POSTS ====== */
function restricted_posts_for_current_author($query) {
		global $user_ID;
	if($query->is_admin && $user_ID !== 10 )
		$query->set('author',  -10);
	unset($user_level);
	return $query;
}
add_filter('pre_get_posts', 'restricted_posts_for_current_author');

function restricted_save_post($post_id){
	global $post;
$message = 'If you want to edit my posts you need to ask first.';
	if( get_current_user_id() !== 10 AND $post->post_author == 10 )
		exit($message);
}
add_action( 'save_post', 'restricted_save_post');
/* ===== END RESTRICT USER POSTS ====== */