Adds schema-update daenerys command.

src/Console/Command/DatabaseSchemaUpdateCommand.php

@@ -0,0 +1,40 @@
+<?php
+declare(strict_types=1);
+
+namespace LotGD\Core\Console\Command;
+
+use Doctrine\ORM\Tools\SchemaTool;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+use LotGD\Core\Console\Main;
+use LotGD\Core\Game;
+
+/**
+ * Danerys command to initiate the database with default values.
+ */
+class DatabaseSchemaUpdateCommand extends BaseCommand
+{
+    /**
+     * @inheritDoc
+     */
+    protected function configure()
+    {
+        $this->setName('database:schemaUpdate')
+             ->setDescription('Updates the database schema manually.');
+    }
+
+    /**
+     * @inheritDoc
+     */
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $entityManager = $this->game->getEntityManager();
+        $metaData = $entityManager->getMetadataFactory()->getAllMetadata();
+        $schemaTool = new SchemaTool($entityManager);
+        $schemaTool->updateSchema($metaData);
+
+        $entityManager->flush();
+    }
+}