src/Biz/Article/Service/Impl/CategoryServiceImpl.php

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<?php

namespace Biz\Article\Service\Impl;

use Biz\Article\CategoryException;
use Biz\Article\Dao\CategoryDao;
use Biz\Article\Service\CategoryService;
use Biz\BaseService;
use Biz\Common\CommonException;
use Biz\System\Service\LogService;
use AppBundle\Common\ArrayToolkit;
use AppBundle\Common\TreeToolkit;
use AppBundle\Common\Tree;

class CategoryServiceImpl extends BaseService implements CategoryService
{
    public function getCategory($id)
    {
        return $this->getCategoryDao()->get($id);
    }

    public function getCategoryByCode($code)
    {
        return $this->getCategoryDao()->findByCode($code);
    }

    public function getCategoryTree($isPublished = false)
    {
        $prepare = function ($categories) {
            $prepared = array();

            foreach ($categories as $category) {
                if (!isset($prepared[$category['parentId']])) {
                    $prepared[$category['parentId']] = array();
                }

                $prepared[$category['parentId']][] = $category;
            }

            return $prepared;
        };

        if ($isPublished) {
            $categories = $this->getCategoryDao()->search(array('published' => 1), null, 0, PHP_INT_MAX);
        } else {
            $categories = $this->findAllCategories();
        }

        $categories = $prepare($categories);
        $tree = array();
        $this->makeCategoryTree($tree, $categories, 0);

        return $tree;
    }

    public function getCategoryStructureTree()
    {
        return TreeToolkit::makeTree($this->getCategoryTree(), 'weight');
    }