Laravel 在 save() 上缓和错误
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Laravel moderate errors on save()
提问by DolDurma
In this sample code below how would I moderate errors such as Eloquent could not save or update fields or break SQL connection?
在下面的示例代码中，我将如何缓和诸如 Eloquent 无法保存或更新字段或中断 SQL 连接之类的错误？
$user = new User;
$user->name = 'John';
$user->save();
回答by Steve Bauman
The save() method for eloquent returns a boolean on failure and a collection object on success, so you can display an error if the save() method returns false;
eloquent 的 save() 方法在失败时返回一个布尔值，在成功时返回一个集合对象，因此如果 save() 方法返回 false，您可以显示错误；
For example:
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');
}
Here's the eloquent save function in detail:
下面详细介绍一下 eloquent save 功能：
http://laravel.com/api/5.1/Illuminate/Database/Eloquent/Model.html#method_save
http://laravel.com/api/5.1/Illuminate/Database/Eloquent/Model.html#method_save
You may also want to look at model events:
您可能还想查看模型事件：
http://laravel.com/docs/5.1/eloquent#events
http://laravel.com/docs/5.1/eloquent#events
EDIT: For your other question to catch a database connection error you can use a try/catch block such as:
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));
}
