原文:Rails transactions: The Complete Guide 作者:Mark Daggett 转自:http://markdaggett.com/blog/2011/12/01/transactions-in-rails/ Transactions in Rails DEC 1ST, 2011 Recently I was tasked to write tests for the transactions of an existing application. This gave me the opportunity to learn more about the codebase, while also improving the test coverage. Generally, most of the transaction… Continue Reading [Reproduce]Transactions in Rails

原文:Rails transactions: The Complete Guide 作者:Victor A.M. 转自:http://codeatmorning.com/rails-transactions-complete-guide/   Rails transactions: The Complete Guide Rails transactions are a way to ensure that a set of database operations will only occur if all of them succeed. Otherwise, they will rollback to the previous state of data. Our examples will demonstrate it… Continue Reading [Reproduce]Rails transactions: The Complete Guide

原文:ActiveRecord 事务的一些试验和验证 作者:baya 转自:https://baya.github.io/2015/06/13/activerecord-%E4%BA%8B%E5%8A%A1.html ActiveRecord 事务的一些试验和验证 Jun 13, 2015 Transactions are protective blocks where SQL statements are only permanent if they can all succeed as one atomic action 我们平时说的 一手交钱,一手交货 就是一种事务。 ActiveRecord 中的事务是通过 transaction 方法实现的。 我们首先试验一个基础的例子: ActiveRecord::Base.transaction ActiveRecord::Base.transaction do david.withdrawal(100) mary.deposit(100) end 在试验之前,我们先用 Rails 创建一个 demo, 并创建好相关的 model。 $ rails new ar-transaction-demo… Continue Reading 【转载】ActiveRecord 事务的一些试验和验证