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README.rdoc

simple_eav

simple_eav provides a more simple alternative to acts_as_eav_model that works with ActiveRecord without any monkey patching. This gem is designed to be a replacement for acts_as_eav_model.

Acts_as_eav_model's purpose is to provide a model with any number of custom attributes. This project has the same purpose. The difference being maintaining utmost compatibility with ActiveRecord::Base.

Version 0.1.0 makes this library, to my knowledge, fully compatible with acts_as_eav_model. This update introduced the ability to specify custom attributes exactly the same as attributes with an actual column in the database ie:

Person.create :attribute_with_column=>true, :attribute_without_column=>true

Installation

gem install simple_eav

Usage

1. Create the migration for your model

create_table :people do |t|
  t.text  :custom_attributes # Name this column whatever you like just *make sure* it is a TEXT field
  ....
end

2. Configure simple_eav in your model

class Person < ActiveRecord::Base
  include SimpleEav

  configure_simple_eav :custom_attributes # This sets up the serialization for your custom attributes
end

3. Set and Get custom attributes as if they were a normal attribute on your model

person = Person.new
person.name = 'Joe'
person.name ~> 'Joe'

person = Person.new :name => 'Joe'
person.save!
person.name ~> 'Joe'

Migrating to simple_eav

I have not done this yet but will hopefully be making the transition soon. I'll update the README once that's complete or let me know what you find if you migrate your project first. At the moment, a migration would be needed that:

- Moves each attribute record to a key => value pair for the simple_eav_column on the model using acts_as_eav_model
- Destroys each attribute record

Contributing

  • Fork the project.

  • Make your feature addition or bug fix.

  • Add tests for it. This is important so I don't break it in a future version unintentionally.

  • Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)

  • Send me a pull request. Bonus points for topic branches.

Author

Tim Linquist

Copyright

Copyright © 2011 Tim Linquist

See LICENSE for details.

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