Archive for January 26, 2016

• Query Objects in the Rails world - A Different Approach

  January 26, 2016

  If you have worked with Ruby on Rails before then you might be familiar with ActiveRecord scopes. Using them, you can achieve what many would consider very readable code. Let’s say that we have an application where we display an inbox where users receive messages.

  class Message < ActiveRecord::Base
  end
  

  Now, let’s imagine that after reading a Message, it is marked as read, and let’s represent that with a read column in the database. Additionally, our users can either archive the Message or move it to the trash. We’ll represent this concept with a location column in the messages table.

  Querying the database the Rails way

  Let’s say that our users want to have a way to view unread messages in their inbox. Using ActiveRecord, you could achieve…

  Continue Reading →