lachang/database/migrations/20220324060229_create_kj_activity_help_table.php

<?php

use think\migration\Migrator;
use think\migration\db\Column;

class CreateKjActivityHelpTable extends Migrator
{
    /**
     * Change Method.
     *
     * Write your reversible migrations using this method.
     *
     * More information on writing migrations is available here:
     * http://docs.phinx.org/en/latest/migrations.html#the-abstractmigration-class
     *
     * The following commands can be used in this method and Phinx will
     * automatically reverse them when rolling back:
     *
     *    createTable
     *    renameTable
     *    addColumn
     *    renameColumn
     *    addIndex
     *    addForeignKey
     *
     * Remember to call "create()" or "update()" and NOT "save()" when working
     * with the Table class.
     */
    public function change()
    {
           $table = $this->table('kj_activity_help', array('id' => true, 'primary_key' => ['id'], 'engine' => 'InnoDB', 'comment' => '活动砍价发起表'));
            $table->addColumn('activity_id', 'integer',array('limit'  =>  4, 'signed' => false, 'default'=> 0,'comment'=>'活动id'))
            ->addColumn('user_id', 'integer',array('limit'  =>  11,'signed'=>false,'default'=>0,'comment'=>'用户id'))
            ->addColumn('join_id', 'integer',array('limit'  =>  11,'signed'=>false,'default'=>0,'comment'=>'发起砍价id'))
            ->addColumn('help_price', 'decimal',array('limit'  =>  11,'precision'=>10,'scale'=>2,'signed'=>false,'default'=>0,'comment'=>'帮砍价格'))
            ->addColumn('create_time', 'datetime',array('null' => true,'comment'=>'创建时间'))
            ->addColumn('update_time', 'datetime',array('null' => true,'comment'=>'更新时间'))
            ->addIndex(['join_id'])
            ->create();
    }
}