Magento 2 InstallSchema

InstallSchema.php

<?php
/**
* Copyright (c) 2016 Magento. All rights reserved.
* See COPYING.txt for license details.
*/

namespace Rick\Example\Setup;

use Magento\Framework\DB\Ddl\Table;
use Magento\Framework\Setup\InstallSchemaInterface;
use Magento\Framework\Setup\ModuleContextInterface;
use Magento\Framework\Setup\SchemaSetupInterface;

/**
* @codeCoverageIgnore
*/
class InstallSchema implements InstallSchemaInterface
{
   /**
    * {@inheritdoc}
    * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
    */
   public function install(SchemaSetupInterface $setup, ModuleContextInterface $context)
   {
       /**
        * Create table 'quote_item_file'
        */
       $table = $setup->getConnection()
           ->newTable($setup->getTable('quote_item_file'))
           ->addColumn(
               'entity_id',
               Table::TYPE_INTEGER,
               null,
               ['nullable' => false, 'primary' => true, 'identity' => true],
               'Entity ID'
           )
           ->addColumn(
               'filename',
               Table::TYPE_TEXT,
               255,
               ['nullable' => false],
               'Filename'
           )->addColumn(
               'location',
               Table::TYPE_TEXT,
               255,
               ['nullable' => false],
               'Location of file'
           )->addColumn(
               'quote_item_item_id',
               Table::TYPE_INTEGER,
               null,
               ['padding' => 10, 'nullable' => false, 'unsigned' => true],
               'Item Id'
           )->addForeignKey(
               $setup->getFkName(
                   $setup->getTable('quote_item_file'),
                   'quote_item_item_id',
                   'quote_item',
                   'item_id'
               ),
               'quote_item_item_id',
               $setup->getTable('quote_item'),
               'item_id',
               Table::ACTION_CASCADE
           )->setComment('Quote Item File Table');

       $setup->getConnection()->createTable($table);
   }
}