Laravel对save()的中等错误

Question

在下面的示例代码中,我将如何调节Eloquent无法保存或更新字段或断开SQL连接等错误？

$user = new User;

$user->name = 'John';

$user->save();

Answer 1

eloquent的save()方法在失败时返回一个布尔值,并在成功时返回一个集合对象,因此如果save()方法返回false,则可以显示错误;

例如:

$user = new User;

$user->name = 'John';

if($user->save()){
    return Redirect::to('users')->with('message', sprintf('User: "%s" successfully saved', $user->name));
} else{
    return Redirect::to('users')->with('message', 'Failed to create user');
}

这里是详细的雄辩保存功能:

http://laravel.com/api/5.1/Illuminate/Database/Eloquent/Model.html#method_save

您可能还想查看模型事件:

http://laravel.com/docs/5.1/eloquent#events

编辑:对于捕获数据库连接错误的其他问题,您可以使用try/catch块,例如:

try{
    if (Auth::attempt(array('email' => $email, 'password' => $password))){
        return Redirect::to('dashboard');
    } else{
        //Authentication failed
        return Redirect::to('home')->with('message', 'Authentication failed, username/password inccorrect');
    }
} catch(PDOException $e){
    return Redirect::to('home')->with('message', sprintf('Failed to connect to database: %s', $e));
}