eZProductSearchService.php

<?php
namespace NM\Bundle\GoogleProductsBundle\API;

use eZ\Publish\API\Repository\Values\Content\Query\Criterion;
use eZ\Publish\API\Repository\Values\Content\Query;
use eZ\Publish\Core\MVC\Legacy\Kernel as LegacyKernel;
use eZContentObjectTreeNode;

/**
 * Class eZProductSearchService
 * @package NM\Bundle\GoogleProductsBundle\API
 *
 * @author Netmaking AS, Thomas Maurstad Larsson<thomas@netmaking.no>
 */
class eZProductSearchService
{
    /**
     * @var int
     */
    protected $rootLocationId = 2;

    /**
     * @var array
     */
    protected $searchFilters = array(
        'ClassFilterType' => 'include',
        'ClassFilterArray' => array('vismaproduct'),
        'SortBy' => array('path', true),
        'IgnoreVisibility' => false
    );

    /**
     * @var eZLegacyKernel
     */
    protected $legacyKernel;

    /**
     * @var array
     */
    protected $products;

    /**
     * @var int
     */
    protected $count;

    /**
     * Public constructor
     * @param callable $legacyKernel
     */
    public function __construct( \Closure $legacyKernel )
    {
        $this->count = 0;
        $this->products = array();
        $this->legacyKernel = $legacyKernel;
    }

    /**
     * Performs a search using the eZ Publish legacy kernel
     *
     * @return $this
     */
    public function perform()
    {
        $rootLocationId = $this->rootLocationId;
        $searchFilters = $this->searchFilters;

        $data = $this->legacyKernelClosure()->runCallback(
            function() use ($rootLocationId, $searchFilters)
            {
                return eZContentObjectTreeNode::subTreeByNodeID($searchFilters, $rootLocationId);
            }
        );

        if ( $data )
        {
            $this->count = (int) count($data);
            $this->products = $data;
        }

        return $this;
    }

    /**
     * @return int
     */
    public function getCount()
    {
        return $this->count;
    }

    /**
     * @return bool
     */
    public function hasResults()
    {
        return (bool) $this->getCount() > 0;
    }

    /**
     * @return array
     */
    public function getResults()
    {
        return $this->products;
    }

    /**
     * Allows you to run calls to the Legacy Kernel as a Closure
     *
     * @return \Clojure $legaxyKernelClosure
     */
    public function legacyKernelClosure()
    {
        $legacyKernel = $this->legacyKernel;
        return $legacyKernel();
    }

}