Added support for SQLite.

src/Migrations/AbstractMultiPlatformMigration.php

@@ -0,0 +1,80 @@
+<?php
+
+
+namespace App\Migrations;
+
+
+use Doctrine\DBAL\DBALException;
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+use Scheb\TwoFactorBundle\Model\Email\TwoFactorInterface;
+
+abstract class AbstractMultiPlatformMigration extends AbstractMigration
+{
+    public function up(Schema $schema): void
+    {
+        $db_type = $this->connection->getDatabasePlatform()->getName();
+
+        switch ($db_type) {
+            case 'mysql':
+                $this->mySQLUp($schema);
+                break;
+            case 'sqlite':
+                $this->sqLiteUp($schema);
+                break;
+            default:
+                $this->abortIf(true, "Database type '$db_type' is not supported!");
+                break;
+        }
+    }
+
+    public function down(Schema $schema): void
+    {
+        $db_type = $this->connection->getDatabasePlatform()->getName();
+
+        switch ($db_type) {
+            case 'mysql':
+                $this->mySQLDown($schema);
+                break;
+            case 'sqlite':
+                $this->sqLiteDown($schema);
+                break;
+            default:
+                $this->abortIf(true, "Database type '$db_type' is not supported!");
+                break;
+        }
+    }
+
+    /**
+     * Gets the legacy Part-DB version number. Returns 0, if target database is not an legacy Part-DB database.
+     * @return int
+     */
+    public function getOldDBVersion(): int
+    {
+        if ($this->connection->getDatabasePlatform()->getName() !== "mysql") {
+            //Old Part-DB version only supported MySQL therefore only
+            return 0;
+        }
+
+        try {
+            return (int) $this->connection->fetchColumn("SELECT keyValue AS version FROM `internal` WHERE `keyName` = 'dbVersion'");
+        } catch (DBALException $dBALException) {
+            //when the table was not found, we can proceed, because we have an empty DB!
+            return 0;
+        }
+    }
+
+    public function getInitalAdminPW(): string
+    {
+        //CHANGEME: Improve this
+        return '$2y$10$36AnqCBS.YnHlVdM4UQ0oOCV7BjU7NmE0qnAVEex65AyZw1cbcEjq';
+    }
+
+    abstract public function mySQLUp(Schema $schema): void;
+
+    abstract public function mySQLDown(Schema $schema): void;
+
+    abstract public function sqLiteUp(Schema $schema): void;
+
+    abstract public function sqLiteDown(Schema $schema): void;
+}