TechDivision\Import\Product\Observers\UrlRewriteUpdateObserver

Complexity

Total Complexity

19

Size/Duplication

Total Lines	221
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Test Coverage

Coverage

87.5%

Importance

Changes

0

7 Methods

Rating	Name	Duplication	Size	Complexity
A	getExistingUrlRewrite()	0	6	2
A	removeExistingUrlRewrite()	0	12	2
B	process()	0	55	6
B	prepareUrlRewrites()	0	26	2
B	initializeUrlRewrite()	0	26	3
B	getMetadata()	0	24	3
A	getUrlRewritesByEntityTypeAndEntityId()	0	4	1

<?php

/**
 * TechDivision\Import\Product\Observers\UrlRewriteUpdateObserver
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 *
 * PHP version 5
 *
 * @author    Tim Wagner <t.wagner@techdivision.com>
 * @copyright 2016 TechDivision GmbH <info@techdivision.com>
 * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
 * @link      https://github.com/techdivision/import-product
 * @link      http://www.techdivision.com
 */

namespace TechDivision\Import\Product\Observers;

use TechDivision\Import\Product\Utils\MemberNames;

/**
 * Observer that creates/updates the product's URL rewrites.
 *
 * @author    Tim Wagner <t.wagner@techdivision.com>
 * @copyright 2016 TechDivision GmbH <info@techdivision.com>
 * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
 * @link      https://github.com/techdivision/import-product
 * @link      http://www.techdivision.com
 */
class UrlRewriteUpdateObserver extends UrlRewriteObserver
{

    /**
     * Array with the existing URL rewrites of the actual product.
     *
     * @var array
     */
    protected $existingUrlRewrites = array();

    /**
     * Return's the URL rewrite for the passed store ID and request path.
     *
     * @param integer $storeId     The store ID to return the URL rewrite for
     * @param string  $requestPath The request path to return the URL rewrite for
     *
     * @return array|null The URL rewrite
     */
    protected function getExistingUrlRewrite($storeId, $requestPath)
    {
        if (isset($this->existingUrlRewrites[$storeId][$requestPath])) {
            return $this->existingUrlRewrites[$storeId][$requestPath];
        }
    }

    /**
     * Remove's the passed URL rewrite from the existing one's.
     *
     * @param array $urlRewrite The URL rewrite to remove
     *
     * @return void
     */
    protected function removeExistingUrlRewrite(array $urlRewrite)
    {

        // load store ID and request path
        $storeId = (integer) $urlRewrite[MemberNames::STORE_ID];
        $requestPath = $urlRewrite[MemberNames::REQUEST_PATH];

        // query whether or not the URL rewrite exists and remove it, if available
        if (isset($this->existingUrlRewrites[$storeId][$requestPath])) {
            unset($this->existingUrlRewrites[$storeId][$requestPath]);
        }
    }

    /**
     * Process the observer's business logic.
     *
     * @return void
     * @see \TechDivision\Import\Product\Observers\UrlRewriteObserver::process()
     */
    protected function process()
    {

        // process the new URL rewrites first
        parent::process();

        // load the root category
        $rootCategory = $this->getRootCategory();

        // create redirect URL rewrites for the existing URL rewrites
        foreach ($this->existingUrlRewrites as $existingUrlRewrites) {
            foreach ($existingUrlRewrites as $existingUrlRewrite) {
                // if the URL rewrite has been created manually
                if ((integer) $existingUrlRewrite[MemberNames::IS_AUTOGENERATED] === 0) {
                    // do NOT create another redirect
                    continue;
                }

                // if the URL rewrite already IS a redirect
                if ((integer) $existingUrlRewrite[MemberNames::REDIRECT_TYPE] !== 0) {
                    // do NOT create another redirect
                    continue;
                }

                // load the metadata from the existing URL rewrite
                $metadata = $this->getMetadata($existingUrlRewrite);

                // initialize the category with the root category
                $category = $rootCategory;

                // query whether or not, the existing URL rewrite has been replaced
                if (isset($this->urlRewrites[$metadata['category_id']])) {
                    // if yes, load the category of the original one
                    $category = $this->getCategory($metadata['category_id']);
                }

                // load target path/metadata for the actual category
                $targetPath = $this->prepareRequestPath($category);
                $metadata = serialize($this->prepareMetadata($category));

                // override data witht rhe root category information
                $attr = array(
                    MemberNames::REDIRECT_TYPE    => 301,
                    MemberNames::METADATA         => $metadata,
                    MemberNames::TARGET_PATH      => $targetPath,
                );

                // merge and return the prepared URL rewrite
                $existingUrlRewrite = $this->mergeEntity($existingUrlRewrite, $attr);

                // create the URL rewrite
                $this->persistUrlRewrite($existingUrlRewrite);
            }
        }
    }

    /**
     * Prepare's the URL rewrites that has to be created/updated.
     *
     * @return void
     * @see \TechDivision\Import\Product\Observers\UrlRewriteObserver::prepareUrlRewrites()
     */
    protected function prepareUrlRewrites()
    {

        // prepare the new URL rewrites first
        parent::prepareUrlRewrites();

        // (re-)initialize the array for the existing URL rewrites
        $this->existingUrlRewrites = array();

        // load primary key and entity type
        $pk = $this->getPrimaryKey();
        $entityType = UrlRewriteObserver::ENTITY_TYPE;

        // load the existing URL rewrites of the actual entity
        $existingUrlRewrites = $this->getUrlRewritesByEntityTypeAndEntityId($entityType, $pk);

        // prepare the existing URL rewrites to improve searching them by store ID/request path
        foreach ($existingUrlRewrites as $existingUrlRewrite) {
            // load store ID and request path from the existing URL rewrite
            $storeId = (integer) $existingUrlRewrite[MemberNames::STORE_ID];
            $requestPath = $existingUrlRewrite[MemberNames::REQUEST_PATH];

            // append the URL rewrite with its store ID/request path
            $this->existingUrlRewrites[$storeId][$requestPath] = $existingUrlRewrite;
        }
    }

    /**
     * Initialize the category product with the passed attributes and returns an instance.
     *
     * @param array $attr The category product attributes
     *
     * @return array The initialized category product
     */
    protected function initializeUrlRewrite(array $attr)
    {

        // load store ID and request path
        $storeId = $attr[MemberNames::STORE_ID];
        $requestPath = $attr[MemberNames::REQUEST_PATH];

        // try to load the URL rewrite for the store ID and request path
        if ($urlRewrite = $this->getExistingUrlRewrite($storeId, $requestPath)) {
            // if a URL rewrite has been found, do NOT create a redirect
            $this->removeExistingUrlRewrite($urlRewrite);

            // if the found URL rewrite has been created manually
            if ((integer) $urlRewrite[MemberNames::IS_AUTOGENERATED] === 0) {
                // do NOT update it nor create a another redirect
                return false;

The return type of return false; (false) is incompatible with the return type of the parent method TechDivision\Import\Product\Observers\UrlRewriteObserver::initializeUrlRewrite of type array.

            }

            // if the found URL rewrite has been autogenerated, then update it
            return $this->mergeEntity($urlRewrite, $attr);

Blank line found at end of control structure

        }

        // simple return the attributes
        return $attr;
    }

    /**
     * Return's the unserialized metadata of the passed URL rewrite. If the
     * metadata doesn't contain a category ID, the category ID of the root
     * category will be added.
     *
     * @param array $urlRewrite The URL rewrite to return the metadata for
     *
     * @return array The metadata of the passed URL rewrite
     */
    protected function getMetadata($urlRewrite)
    {

        // initialize the array with the metaddata
        $metadata = array();

        // try to unserialize the metadata from the passed URL rewrite
        if (isset($urlRewrite[MemberNames::METADATA])) {
            $metadata = unserialize($urlRewrite[MemberNames::METADATA]);
        }

        // query whether or not a category ID has been found
        if (isset($metadata['category_id'])) {
            // if yes, return the metadata
            return $metadata;
        }

        // if not, append the ID of the root category
        $rootCategory = $this->getRootCategory();
        $metadata['category_id'] = $rootCategory[MemberNames::ENTITY_ID];

        // and return the metadata
        return $metadata;
    }

    /**
     * Return's the URL rewrites for the passed URL entity type and ID.
     *
     * @param string  $entityType The entity type to load the URL rewrites for
     * @param integer $entityId   The entity ID to laod the rewrites for
     *
     * @return array The URL rewrites
     */
    protected function getUrlRewritesByEntityTypeAndEntityId($entityType, $entityId)
    {
        return $this->getSubject()->getUrlRewritesByEntityTypeAndEntityId($entityType, $entityId);
    }
}