Question

我正在使用Mongify将MySQL数据转换为MongoDB。但是，我在MySQL表中的id字段为primary_key，但是在mongify之后它会覆盖默认的MongoDB _id值，即"_id" : ObjectId("58369f006ee5c61b9400000e"),我不想覆盖它我需要完全MySQL中primary_key列id的相同值为MongoDB _id，如下所示：

MySQL id: 123应转换为 MongoDB 为"_id" : ObjectId("123"),

这是用户表的翻译文件

table "users" do
  column "id", :key, :as => :integer
  column "username", :string
  column "password", :string
  column "email", :string
  column "first_name", :string
  column "last_name", :string
  column "dob", :date
  column "gender", :boolean
  column "status", :integer
  column "created", :datetime
  column "modified", :datetime

end

提前致谢。

Answer 1

我刚刚找到了Mongify docs

中已有的解决方法

添加此

users

因此table "users" do before_save do |row| row._id = row.delete('pre_mongified_id') end column "id", :key, :as => :integer column "username", :string column "password", :string column "email", :string column "first_name", :string column "last_name", :string column "dob", :date column "gender", :boolean column "status", :integer column "created", :datetime column "modified", :datetime end表的完整转换脚本看起来像

<?php
  $ts= [1.31, 1.32, 1.33, 1.34, 1.35, 1.36, 1.37, 1.38, 1.39, 1.40];
  array_walk($ts, function($t){echo number_format($t, 2)."\t".number_format(0.05*round($t*20), 2)."\n";});

非常感谢。

Mongify - MonogoDB _id字段值覆盖MySQL id主键字段值

1 个答案: