public string EditUser(IFormCollection value, int id)
{
var email = value["email"];
var nickName = value["nickName"];
var password = value["password"];
var avatar = value["avatar"];
var users = new UsersDB();
users.Edit(id, nickName, email, password, avatar);
var user = new UserModel(id, nickName, email, password, avatar);
return(user.ToString());
}