Magento 2 在模块中创建多数据库表答案

【问题标题】：Magento 2 create multi db table in moduleMagento 2 在模块中创建多数据库表
【发布时间】：2018-01-15 20:30:49
【问题描述】：

我创建了一个名为 MyCompany\MyModule 的模块。在这个模块中，我想创建大约 3 或 4 个 db 表，例如：greeting_message、greeting_post、greeting_comment。然后，我在MyCompany\MyModule 下创建了Setup 文件夹并添加了一个文件InstallSchema.php 代码如下：

<?php

/**
 * Copyright © 2016 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */

namespace MyCompany\MyModle\Setup;
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 'greeting_message'
         */
        $table = $setup->getConnection()
            ->newTable($setup->getTable('greeting_message'))
            ->addColumn(
                'greeting_id',
                \Magento\Framework\DB\Ddl\Table::TYPE_INTEGER,
                null,
                ['identity' => true, 'unsigned' => true, 'nullable' => false, 'primary' => true],
                'Greeting ID'
            )
            ->addColumn(
                'message',
                \Magento\Framework\DB\Ddl\Table::TYPE_TEXT,
                255,
                ['nullable' => false, 'default' => ''],
                'Message'
            )->setComment("Greeting Message table");
        $setup->getConnection()->createTable($table);
    }
}

似乎我们只在文件中创建了 1 个表。那么，有没有一些方法可以在一个模块中创建多 db 表？

【问题讨论】：

标签： mysql database magento2

【解决方案1】：

对一张表使用复制粘贴代码，对另一张表执行相同操作。以下是所有表格，将列更改为您的要求。

<?php

/**
* Copyright © 2016 Magento. All rights reserved.
* See COPYING.txt for license details.
*/

namespace MyCompany\MyModle\Setup;
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 'greeting_message'
         */
        $table = $setup->getConnection()
            ->newTable($setup->getTable('greeting_message'))
            ->addColumn(
                'greeting_id',
                \Magento\Framework\DB\Ddl\Table::TYPE_INTEGER,
                null,
                [
                    'identity' => true,
                    'unsigned' => true,
                    'nullable' => false,
                    'primary' => true
                ],
                'Greeting ID'
            )
            ->addColumn(
                'message',
                \Magento\Framework\DB\Ddl\Table::TYPE_TEXT,
                255,
                [
                    'nullable' => false,
                    'default' => ''
                ],
                'Message'
            )
            ->setComment("Greeting Message table");

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

        /**
         * Create table 'greeting_post'
         */
        $table = $setup->getConnection()
            ->newTable($setup->getTable('greeting_post'))
            ->addColumn(
                'greeting_id',
                \Magento\Framework\DB\Ddl\Table::TYPE_INTEGER,
                null,
                [
                    'identity' => true,
                    'unsigned' => true,
                    'nullable' => false,
                    'primary' => true
                ],
                'Greeting ID'
            )
            ->addColumn(
                'message',
                \Magento\Framework\DB\Ddl\Table::TYPE_TEXT,
                255,
                [
                    'nullable' => false,
                    'default' => ''
                ],
                'Message'
            )->setComment("Greeting Message table");

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

        /**
         * Create table 'greeting_comment'
         */
        $table = $setup->getConnection()
            ->newTable($setup->getTable('greeting_comment'))
            ->addColumn(
                'greeting_id',
                \Magento\Framework\DB\Ddl\Table::TYPE_INTEGER,
                null,
                [
                    'identity' => true,
                    'unsigned' => true,
                    'nullable' => false,
                    'primary' => true
                ],
                'Greeting ID'
            )
            ->addColumn(
                'message',
                \Magento\Framework\DB\Ddl\Table::TYPE_TEXT,
                255,
                [
                    'nullable' => false,
                    'default' => ''
                ],
                'Message'
            )->setComment("Greeting Message table");

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

【讨论】：