https://github.com/smashingboxes/activerecord-diff

Simple ActiveRecord diff functionality
https://github.com/smashingboxes/activerecord-diff

Last synced: 7 days ago
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Simple ActiveRecord diff functionality

• Host: GitHub
• URL: https://github.com/smashingboxes/activerecord-diff
• Owner: smashingboxes
• Created: 2011-05-03T20:30:10.000Z (over 13 years ago)
• Default Branch: master
• Last Pushed: 2011-05-04T01:02:19.000Z (over 13 years ago)
• Last Synced: 2024-04-09T22:08:24.026Z (7 months ago)
• Language: Ruby
• Homepage:
• Size: 434 KB
• Stars: 1
• Watchers: 5
• Forks: 14
• Open Issues: 0
• Metadata Files:
  • Readme: README.txt

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README

        
Simple ActiveRecord diff functionality.

Example usage:

  require 'active_record/diff'

  class User < ActiveRecord::Base

    include ActiveRecord::Diff

  end

  alice = User.create(:name => 'alice', :email_address => '[email protected]')

  bob = User.create(:name => 'bob', :email_address => '[email protected]')

  alice.diff?(bob)  # => true

  alice.diff(bob)  # => {:name => ['alice', 'bob'], :email_address => ['[email protected]', '[email protected]']}

  alice.diff({:name => 'eve'})  # => {:name => ['alice', 'eve']}

  

Multiple objects can also be compared. Example:

  eve = User.create(:name => 'eve', :email_address => '[email protected]')

  

  alice.diff?([bob, eve])  # => true

  

  alice.diff([bob, eve])  # => { :name => ['alice', 'bob', 'eve'], :email_address => ['[email protected]', '[email protected]'] }

By default, ActiveRecord::Base.content_columns is used to decide which attributes

to compare. You can include or exclude attributes from this as follows:

  class User < ActiveRecord::Base

    diff :include => [:id], :exclude => [:password_hash]

  end

Alternatively, you can specify exactly which columns to compare:

  class User < ActiveRecord::Base

    diff :id, :name, :email_address

  end

This is an updated version of the "riff" rails plugin.

To the extent possible under law, Tim Fletcher has waived all copyright and

related or neighboring rights to activerecord-diff. This work is published

from the United Kingdom. http://creativecommons.org/publicdomain/zero/1.0/

Contributions

- Zachary Porter ( zporter )