告诉用户登录失败时他们的电子邮件/用户名不存在

Question

我目前在我的Cake应用程序上有错误消息$this->Auth->loginError = "Login failed. Invalid username or password."，但如果用户在数据库中没有电子邮件/用户名（因为他们可以同时登录），我想更改此消息。 / p>

基本上是这样的：

if(user has email but wrong password)
{
$this->Auth->loginError = "Login failed. Invalid username or password.";
}
else if(user has no email)
{
$this->Auth->loginError = "Login failed. The email ****** could not be found in the database.";
}