Rails 生成迁移 [英] Rails generate Migration

问题描述

我目前有一个名为 Products 的迁移，我只是想向此迁移添加更多字符串，例如描述和产品类型.做这个的最好方式是什么?

I currently have migration called Products, and I simply want to add few more strings to this migration such as description and product type. What is the best way to do this?

class CreateProducts < ActiveRecord::Migration
  def change
    create_table :products do |t|
      t.string  :name
      t.decimal :price
      t.text    :description
      t.timestamps
    end
   end
 end

推荐答案

直接运行

rails g migration add_description_to_products description:string
rails g migration add_product_type_to_products product_type:string

然后运行

rake db:migrate

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