Thyng

Ruby objects with public state to encourage storage as data only collections.

What?

A thyng is a ruby object with the convention of saving state in key:value pairs that are public on the object rather than in private instance variables.

How?

Instead of private attributes a thyng has public aspects. Basic access to these can be declared with asect_reader, aspect_write & aspect_accessor.

Why?

With all state external a thyng can be reconstructed completly from its data. This allows it to be passed as JSON or easily stored in a database.

Simple example

class Person < Thyng
  aspect_accessor :name
end

person = Person.new
# => {}

person.name = 'Fester'

puts person
# => {name: 'Fester'}

Show me the money

Thyng objects are subclassed from ruby hashes. This means most database orm's know exactly how handle them

class Person < Thyng
  aspect_accessor :name
  aspect_accessor :age
end

class Credentials < Thyng
  extend Thyng::CryptedAspect

  aspect_accessor :email
  crypted_accessor :password # <- Oooh!
end

person = Person.new name: 'Morticia', age: '41'
credentials = Credentials.new email: '[email protected]', password: 'password'

record = Record.last

record.set person
record.set credentials

record.save

Installation

Add this line to your application's Gemfile:

gem 'thyng'

And then execute:

$ bundle

Or install it yourself as:

$ gem install thyng

Usage

Plain aspects

See introduction Example

Crypted aspects

To use this you must first add the module to thyng or your subclass of thyng. This will add the crypted_accessor method to your class.

crypted_accessor takes an aspect and adds five methods to you class. These are reader and writer methods for both the Bcrypt object and raw crypted string, as well as a check_aspect method

Example

class Credentials < Thyng
  extend Thyng::CryptedAspect

  aspect_accessor :email
  crypted_accessor :password
end

credentials = Credentials.new email: '[email protected]', password: 'password'
# => {:email=>"[email protected]", "crypted_password"=>"$2a$10$Bw4qH9Hp3iMG7c97SIBgJ.ahpXbL8M95FyDU7O.UHo4zgnxcm3bBi"} 

credentials.password.class
# => BCrypt::Password 

credentials.crypted_password.class
# => BCrypt::Password 

credentials.check_password? 'password'
# => true 

password_hash = BCrypt::Password.create('secret')
# => "$2a$10$O5DChGjqYxAU7yxo/J9.7uK55XPeWQxP0hU7nPYQNE85yDbl3H3I6" 

credentials.crypted_password = password_hash
# => "$2a$10$O5DChGjqYxAU7yxo/J9.7uK55XPeWQxP0hU7nPYQNE85yDbl3H3I6" 

credentials.check_password? 'secret'
# => true

Contributing

  1. Fork it ( https://github.com/CrowdHailer/thyng/fork )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request