获取相关模型的类（名称）（Laravel 4，Eloquent）而不检索实例

Question

$relationFunctionName = 'bananas';    //this is set dynamically at runtime, and is always a relation function
$currentClass         = 'FruitBowl'; //this is set dynamically at runtime, and is always an Eloquent Model
$rowId                = 1; //this is also set dynamically at runtime

$grabber              = new $currentClass();
$item                 = $grabber->with($relationFunctionName)->find($rowId);
$relatedItem          = $item->{$relationFunctionName};

exit( get_class( $relatedItem ) );
// returns the className of the related item (if there is one) returns the current class if there is none

我还研究了“getRelations（）”，它返回一个数组，其中关系functionNames为填充相关项的键，如果没有则返回NULL。

我也可以创建一个新的关系实例，这样我就可以检索它的className而不是保存它。

要清楚，我想要关系函数返回的对象的className。 所以在这个例子中它可能是香蕉。

Answer 1

好的发现了。 结果很简单。 要继续上面的代码，执行以下操作将为您提供className：

$relationFunctionName = 'bananas';    //this is set dynamically at runtime, and is always a relation function
$currentClass         = 'FruitBowl'; //this is set dynamically at runtime, and is always an Eloquent Model
$rowId                = 1; //this is also set dynamically at runtime

$grabber              = new $currentClass();
$modelName            = $grabber->{$relationFunctionName}()->getModel();

$ modelName现在用类本身填充..所以如果你想要className，它应该是get_class（$ modelName）;