Magento – Magento 2 : URL key For Specified Store Already Exists

admincategorydatabasemagento2url-key

We have a Magento 2 multisite setup, with categories set up.

When editing some (but not all) of these categories, in different store views, Magento throws following error and does not save data:

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In this case, the name of the “Supplements” category was edited in Chinese store view. It shows changing the value of name in this view but the refreshing page shows that it is not saved at all.

Editing same category in default store view does not result in the same issue.

Ensuring that the “Default” checkbox is unchecked for the URL key field in the Chinese store view makes no difference

enter image description here

We have tried removing URL rewrites for this category (based on the error message and other posts we have reviewed) but this does not help.

We are running M2 Community 2.1.5.

Traced the issue back to a db save error in the url rewrite table:

SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '90-3' for key 'URL_REWRITE_REQUEST_PATH_STORE_ID', query was: INSERT INTO `url_rewrite` (`redirect_type`,`is_autogenerated`,`metadata`,`description`,`store_id`,`entity_type`,`entity_id`,`request_path`,`target_path`) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, ?, ?, ?, ?, ?, ?), (?, ?, ?, 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So multiple entries are saved into the rewrite table in one go (possibly corresponding to the subcats AND their associated products under the given category.

If I track that particular value back to the URLs that are being saved I have this entry in the array”

[167] => Array
    (
        [redirect_type] => 0
        [is_autogenerated] => 1
        [metadata] => 
        [description] => 
        [entity_type] => product
        [entity_id] => 15
        [request_path] => 90-3
        [target_path] => catalog/product/view/id/15
        [store_id] => 3
    )

I can’t see any request paths with “90-3” in it. There are target paths with “catalog/product/view/id/15” but only for default and nz site. I’ve tried deleting these but that didn’t help.

Best Answer

I've fixed this issue. And I have 2 solutions for that.

The first one: Clean up your database in table url_rewrite (Change the url_key of all category). You can write UpgradeData script for this solution.

The second one: Remove the duplication data when saving category. This data is throw in method doReplace($urls) in \vendor\magento\module-url-rewrite\Model\Storage\DbStorage.php file.

protected function doReplace($urls)
    {
        foreach ($this->createFilterDataBasedOnUrls($urls) as $type => $urlData) {
            $urlData[UrlRewrite::ENTITY_TYPE] = $type;
            $this->deleteByData($urlData);
        }
        $data = [];
        foreach ($urls as $url) {
            $data[] = $url->toArray();
        }
        $this->insertMultiple($data);
    }

After debugging, I found out $data variable has a duplicate record. If you want this method to work without any errors. Rewrite this method above to:

protected function doReplace($urls)
{
    foreach ($this->createFilterDataBasedOnUrls($urls) as $type => $urlData) {
        $urlData[UrlRewrite::ENTITY_TYPE] = $type;
        $this->deleteByData($urlData);
    }
    $data = [];
    $storeId_requestPaths = [];
    foreach ($urls as $url) {
        $storeId = $url->getStoreId();
        $requestPath = $url->getRequestPath();
        // Skip if is exist in the database
        $sql = "SELECT * FROM url_rewrite where store_id = $storeId and request_path = '$requestPath'";
        $exists = $this->connection->fetchOne($sql);

        if ($exists) continue;

        $storeId_requestPaths[] = $storeId . '-' . $requestPath;
        $data[] = $url->toArray();
    }

    // Remove duplication data;
    $n = count($storeId_requestPaths);
    for ($i = 0; $i < $n - 1; $i++) {
        for ($j = $i + 1; $j < $n; $j++) {
            if ($storeId_requestPaths[$i] == $storeId_requestPaths[$j]) {
                unset($data[$j]);
            }
        }
    }
    $this->insertMultiple($data);
}

If you want to get more details. Please, read my comment in

https://github.com/magento/magento2/issues/7298

Hope this will help you.

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