Bolt\Storage\Database\Schema\Manager::update PHP Method

    public function update()
    {
        // Do the initial check
        $fromTables = $this->getInstalledTables();
        $toTables = $this->getSchemaTables();
        $this->getSchemaComparator()->compare($fromTables, $toTables, $this->app['schema.content_tables']->keys());
        $response = $this->getSchemaComparator()->getResponse();
        $creates = $this->getSchemaComparator()->getCreates();
        $alters = $this->getSchemaComparator()->getAlters();
        $modifier = new TableModifier($this->connection, $this->app['logger.system'], $this->app['logger.flash']);
        $modifier->createTables($creates, $response);
        $modifier->alterTables($alters, $response);
        $event = new SchemaEvent($creates, $alters);
        $this->app['dispatcher']->dispatch(SchemaEvents::UPDATE, $event);
        // Recheck now that we've processed
        $fromTables = $this->getInstalledTables();
        $toTables = $this->getSchemaTables();
        $this->getSchemaComparator()->compare($fromTables, $toTables, $this->app['schema.content_tables']->keys());
        if (!$this->getSchemaComparator()->hasPending($fromTables, $toTables, $this->app['schema.content_tables']->keys())) {
            $this->getSchemaTimer()->setCheckExpiry();
        }
        return $response;
    }