DmitryDulepov\Realurl\ext_update::updateRealurlTableStructure PHP Method

    protected function updateRealurlTableStructure()
    {
        $updateStatements = array();
        // Get all necessary statements for ext_tables.sql file
        $rawDefinitions = file_get_contents(ExtensionManagementUtility::extPath('realurl', 'ext_tables.sql'));
        $sqlParser = GeneralUtility::makeInstance('TYPO3\\CMS\\Install\\Service\\SqlSchemaMigrationService');
        $fieldDefinitionsFromFile = $sqlParser->getFieldDefinitions_fileContent($rawDefinitions);
        if (count($fieldDefinitionsFromFile)) {
            $fieldDefinitionsFromCurrentDatabase = $sqlParser->getFieldDefinitions_database();
            $diff = $sqlParser->getDatabaseExtra($fieldDefinitionsFromFile, $fieldDefinitionsFromCurrentDatabase);
            $updateStatements = $sqlParser->getUpdateSuggestions($diff);
        }
        foreach ((array) $updateStatements['add'] as $string) {
            $this->databaseConnection->admin_query($string);
        }
        foreach ((array) $updateStatements['change'] as $string) {
            $this->databaseConnection->admin_query($string);
        }
        foreach ((array) $updateStatements['create_table'] as $string) {
            $this->databaseConnection->admin_query($string);
        }
    }