在Laravel5 Fractal中使用parseincludes

Question

在https://github.com/thephpleague/fractal.

我有两张桌子，Property和Weeks。每一处房产都有好几个星期。使用Fractal，我可以返回我的财产项目和周的集合。我想做的是使用parseIncludes，这样周的返回是可选的。

PropertyTransformer.php

<?php
namespace AppTransformer;
use AppModelsProperty;
use LeagueFractalTransformerAbstract;

class PropertyTransformer extends TransformerAbstract
{
    protected $availableIncludes = [
        'week'
    ];
    public function transform(Property $property)
    {
        return [
            'id'                => (int) $property['PropertyID'],
            'PropertyName'      => $property['PropertyName'],
            'ExactBeds'         => (int) $property['ExactBeds'],
            'weeks'             => $property->week
        ];
    }
    /**
     * Include Week
     *
     * @return LeagueFractalItemResource
     */
    public function includeWeek( Property $property )
    {
        $week = $property->week;
        return $this->item($week, new WeekTransformer);
    }
}

WeekTransformer.php

<?php
namespace AppTransformer;
use AppModelsWeek;
use LeagueFractal;
class WeekTransformer extends FractalTransformerAbstract
{

    public function transform(Week $week)
    {
        return [
            'Week'          => $week['week'],
            'Available'     => $week['available'],
            'Price'         => (int) $week['price'],
        ];
    }
}

我的PropertyController.php

<?php namespace AppHttpControllersApiv1;
use AppHttpRequests;
use AppModelsWeek;
use IlluminateSupportFacadesResponse;
use AppModelsProperty;
use LeagueFractal;
use LeagueFractalManager;
use LeagueFractalResourceCollection as Collection;
use LeagueFractalResourceItem as Item;
use AppTransformerPropertyTransformer;

class PropertyController extends AppHttpControllersController {
public function show($id)
{
    $property = Property::with('bedroom')->with('week')->find($id);
    $fractal = new FractalManager();
    if (isset($_GET['include'])) {
        $fractal->parseIncludes($_GET['include']);
    }
    $resource = new FractalResourceItem($property, new PropertyTransformer);
    //$resource = new FractalResourceCollection($properies, new PropertyTransformer);
    return $fractal->createData( $resource )->parseIncludes('weeks')->toJson();
}

我在parseIncludes上得到以下错误：-

在class\League \Fractal\Scope 中找不到方法"parseIncludes"

我遵循这里的变压器指南-http://fractal.thephpleague.com/transformers/

我想我在这里的某个地方出错了，上面写着：-

除非调用Manager:：parseIncludes（）方法：，否则这些include将可用，但永远无法请求

<?php
use LeagueFractal;
$fractal = new FractalManager();
if (isset($_GET['include'])) {
    $fractal->parseIncludes($_GET['include']);
}

如果我删除parseIncludes，我不会得到错误，我也会用我的周集合获得我的属性数据，但是？include=week不适用于可选获取。

Answer 1

您的问题在这一行：
return $fractal->createData( $resource )->parseIncludes('weeks')->toJson();

createData()返回LeagueFractalScope，它没有parseInlcudes方法。

您已经在此处调用了parseIncludes：

if (isset($_GET['include'])) {
    $fractal->parseIncludes($_GET['include']);
}

因此，只需在return语句中删除对它的第二个调用：
return $fractal->createData($resource)->toJson();