fohow_admin/db/migrate/20210305114641_create_product_items.rb

# encoding:utf-8
class CreateProductItems < ActiveRecord::Migration
  def up
    #套装明细
    create_table :product_items do |t|
      # 商品id
      t.column :product_id, :integer, :limit => 11, :default => 0
      # 商品名称
      t.column :title, :string, :limit => 255
      # 明细ID
      t.column :item_id, :integer, :limit => 11, :default => 0
      # 明细名称
      t.column :item_title, :string, :limit => 255
      # 数量
      t.column :nums, :integer, :limit => 11, :default => 0
      t.timestamps
    end

    #订单基本明细
    create_table :order_base_details do |t|
      # 商品id
      t.column :order_id, :integer, :limit => 11, :default => 0
      # 商品名称
      t.column :order_no, :string, :limit => 255
      # 明细ID
      t.column :order_dt_id, :integer, :limit => 11, :default => 0
      # 商品ID
      t.column :product_id, :integer, :limit => 11, :default => 0
      # 明细名称
      t.column :title, :string, :limit => 255
      # 数量
      t.column :nums, :integer, :limit => 11, :default => 0
      t.timestamps
    end
    add_column :products, :package,  :boolean, :default=>0

  end

  def down
  	drop_table :product_items
    drop_table :order_base_details
    remove_column :products, :package
  end
end