[TASK] Use identifier constants for the upgrade wizards

Classes/Updates/UpdateAuthors.php

@@ -38,6 +38,11 @@ use TYPO3\CMS\Install\Updates\UpgradeWizardInterface;
  * Migrate template db entries to the correct root pages
  */
 class UpdateAuthors implements UpgradeWizardInterface {
+	/**
+	 * The wizard identifier
+	 */
+	const IDENTIFIER = 'tx_sgnews_update_authors';
+
 	/**
 	 * Retrieves the next site root in the page hierarchy from the current page
 	 *
@@ -62,7 +67,7 @@ class UpdateAuthors implements UpgradeWizardInterface {
 	 * @return string
 	 */
 	public function getIdentifier(): string {
-		return 'tx_sgnews_update_authors';
+		return self::IDENTIFIER;
 	}
 
 	/**

ext_localconf.php

@@ -145,7 +145,7 @@ call_user_func(
 		);
 
 		// Add upgrade wizards
-		$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/install']['update']['tx_sgnews_update_authors'] =
+		$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/install']['update'][\SGalinski\SgNews\Updates\UpdateAuthors::IDENTIFIER] =
 			\SGalinski\SgNews\Updates\UpdateAuthors::class;
 	}, 'sg_news'
 );