gistfile1.txt

//CMMIDataHelper.php

   /**
     * @param \RecursiveArrayIterator $iterator
     * @return mixed
     * @throws \Symfony\Component\HttpKernel\Exception\HttpException
     */
    protected function buildResources(\RecursiveArrayIterator $iterator)
    {
        if(count($this->mapping) == 0) {
            throw new HttpException(Codes::HTTP_BAD_REQUEST, 'Unable to generate CMMI Data, no mapping is known');
        }

        $this->resource = new Resource(new Link($this->request->getUri(), 'self'));

        if($iterator->hasChildren()) {
            while($iterator->valid()) {
                $childItem = $iterator->current();
                $this->addResource($childItem);
                $iterator->next();
            }
        } else {
            $this->addResource($iterator);
        }

        return $this->resource;
    }

    /**
     * @param $item
     * @throws \Symfony\Component\HttpKernel\Exception\HttpException
     * @return void
     */
    protected function addResource($item)
    {
        if(!$item->getSlug()) {
            throw new HttpException(Codes::HTTP_BAD_REQUEST, 'Cannot add resource, identifier not known in the iterator');
        }

        $mediaResource = new Resource(new Link('/' . $this->route . '/' . $item->getSlug(), 'self'), $this->route);

        // Add the mapping to the resource
        $this->mapResource($mediaResource, $item);

        $this->resource->addResource($mediaResource);
    }

    /**
     * Map all the fields into the resource
     *
     * @param Resource $resource
     * @param \RecursiveArrayIterator $item
     */
    protected function mapResource(Resource $resource, $item)
    {
        // Map all the fields in the resource
        foreach($this->mapping as $mappingKey => $mappingValue)
        {
            $getter = 'get'.ucfirst($mappingValue);
            if(!$item->$getter()) {
                throw new HttpException('Cannot map resource, key "' . $mappingValue . '" not known in the iterator', Codes::HTTP_BAD_REQUEST);
            }

            $resource->$mappingKey = $item->$getter();
        }
    }