Laravel 5 +雄辩的toJson/toArray导致奇怪的分段错误 [英] Laravel 5 + Eloquent toJson/toArray causes Strange Segmentation Faults

问题描述

我不想回答自己的问题，所以也许您可以帮助我找到解决此问题的方法.

I hate to be answering my own question, so maybe you can help me find what fixed this.

我有一些雄辩的模型，它们彼此属于，并且我通过这样的关联来建立它们.都是正常的东西.

I have some eloquent models which belongTo each-other, and I set them up via association like this. It's all normal stuff.

不幸的是，此过程使$ device无法正常工作.在下面，您可以看到各个值都可以访问，但是任何形式的jsonification都会破坏服务器而不会出错.

This process unfortunately causes $device to work erratically. Below you can see individual values are accessible but any form of jsonification destroys the server without error.

$device = $truck->device;
if(is_null($device) || empty($device)) {
    $device = new Devices;
}
$device->truck()->associate($truck);
$device->fleet()->associate($fleet);
$device->serial = $device_input['serial'];

$device->save();
$truck->device()->associate($device);
$truck->save();

error_log( $device->id );               //OK
error_log( $truck->device->id );        //OK
error_log( $device->toJson() );         //ERROR SEGMENTATION FAULT
error_log( $truck->toArray() );         //ERROR SEGMENTATION FAULT
error_log( $truck->device->toJson() );  //ERROR SEGMENTATION FAULT
error_log( $truck->device->toArray() ); //ERROR SEGMENTATION FAULT
error_log( json_encode($device) );             //ERROR SEGMENTATION FAULT
error_log( json_encode($truck->device) );      //ERROR SEGMENTATION FAULT

推荐答案

Laravel无法正确处理该错误.

Laravel isn't handling the error correctly.

首先，检查您的桌子.当我打印设备表时，我可以看到每次运行此设备时都在创建新设备，这意味着关联显然无法正常工作.

First, check your table. When I printed my devices table I could see that new devices were being created every time I ran this, which means the associations were obviously not working.

我将关联移动到了if语句中，例如:

I moved my associations inside the if statement like:

if(is_null($device) || empty($device)) {
    $device = new Devices;
    $device->truck()->associate($truck);
    $device->fleet()->associate($fleet);
}

因此，仅在创建设备时才会发生关联.您可能会认为将关联设置为已关联的对象不会破坏它.

So that association would only happen when the device is created. You'd think setting the association to the object it's already associated to wouldn't break it.

很奇怪，值可以单独访问，但不能作为json访问.如果有人知道任何laravel开发人员或将其发布为正式错误报告的地方，请告诉我

And it's so weird that values are accessible individually but not as json. If anyone knows any laravel devs or a place to post this as an official bug report let me know

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