Use const for dbname and dbtableprefix defaults

Signed-off-by: Daniel Kesselberg <mail@danielkesselberg.de>

lib/private/DB/ConnectionFactory.php

@@ -38,6 +38,12 @@ use OC\SystemConfig;
  * Takes care of creating and configuring Doctrine connections.
  */
 class ConnectionFactory {
+	/** @var string default database name */
+	const DEFAULT_DBNAME = 'owncloud';
+
+	/** @var string default database table prefix */
+	const DEFAULT_DBTABLEPREFIX = 'oc_';
+
 	/**
 	 * @var array
 	 *
@@ -186,7 +192,7 @@ class ConnectionFactory {
 			'user' => $this->config->getValue('dbuser', ''),
 			'password' => $this->config->getValue('dbpassword', ''),
 		];
-		$name = $this->config->getValue('dbname', 'owncloud');
+		$name = $this->config->getValue('dbname', self::DEFAULT_DBNAME);
 
 		if ($this->normalizeType($type) === 'sqlite3') {
 			$dataDir = $this->config->getValue("datadirectory", \OC::$SERVERROOT . '/data');
@@ -197,7 +203,7 @@ class ConnectionFactory {
 			$connectionParams['dbname'] = $name;
 		}
 
-		$connectionParams['tablePrefix'] = $this->config->getValue('dbtableprefix', 'oc_');
+		$connectionParams['tablePrefix'] = $this->config->getValue('dbtableprefix', self::DEFAULT_DBTABLEPREFIX);
 		$connectionParams['sqlite.journal_mode'] = $this->config->getValue('sqlite.journal_mode', 'WAL');
 
 		//additional driver options, eg. for mysql ssl

lib/private/Setup/Sqlite.php

@@ -23,6 +23,8 @@
 
 namespace OC\Setup;
 
+use OC\DB\ConnectionFactory;
+
 class Sqlite extends AbstractDatabase {
 	public $dbprettyname = 'Sqlite';
 
@@ -30,14 +32,39 @@ class Sqlite extends AbstractDatabase {
 		return array();
 	}
 
+	public function initialize($config) {
+		/*
+		 * Web: When using web based installer its not possible to set dbname
+		 * or dbtableprefix. Defaults used from ConnectionFactory and dbtype = 'sqlite'
+		 * is written to config.php.
+		 *
+		 * Cli: When --database-name or --database-table-prefix empty or default
+		 * dbtype = 'sqlite' is written to config.php. If you choose a value different
+		 * from default these values are written to config.php. This is required because
+		 * in connection factory configuration is obtained from config.php.
+		 */
+
+		$this->dbName = $config['dbname'] ?? ConnectionFactory::DEFAULT_DBNAME;
+		$this->tablePrefix = $config['dbtableprefix'] ?? ConnectionFactory::DEFAULT_DBTABLEPREFIX;
+
+		if ($this->dbName !== ConnectionFactory::DEFAULT_DBNAME) {
+			$this->config->setValue('dbname', $this->dbName);
+		}
+
+		if ($this->tablePrefix !== ConnectionFactory::DEFAULT_DBTABLEPREFIX) {
+			$this->config->setValue('dbtableprefix', $this->tablePrefix);
+		}
+	}
+
 	public function setupDatabase($username) {
-		$datadir = $this->config->getValue('datadirectory', \OC::$SERVERROOT . '/data');
+		$datadir = $this->config->getValue(
+			'datadirectory',
+			\OC::$SERVERROOT . '/data'
+		);
 
-		//delete the old sqlite database first, might cause infinte loops otherwise
-		if (file_exists("$datadir/owncloud.db")) {
-			unlink("$datadir/owncloud.db");
+		$sqliteFile = $datadir . '/' . $this->dbName . 'db';
+		if (file_exists($sqliteFile)) {
+			unlink($sqliteFile);
 		}
-		//in case of sqlite, we can always fill the database
-		error_log("creating sqlite db");
 	}
 }