SimplerEnum
SimplerEnum provides Rails like enumerated type.
It reproduces part of ActiveRecord::Enum features.
I hope it will help you when you want to use ActiveRecord::Enum in your not Rails repositories or older Rails version repositories.
Supported Ruby versions
- Ruby 1.9
- Ruby 2.x
Installation
Add this line to your application's Gemfile:
gem 'simpler_enum'
And then execute:
$ bundle
Or install it yourself as:
$ gem install simpler_enum
Usage
Any class can include SimplerEnum
and you can define an enumerated type like this:
require "simpler_enum"
class Person
include SimplerEnum
simpler_enum mood: %i(awesome excellent great good fine)
def initialize(mood: :fine)
self.mood = mood
end
end
Or,
require "simpler_enum"
class Person
include SimplerEnum
simpler_enum mood: {
awesome: 0,
excellent: 1,
great: 2,
good: 3,
fine: 4
}
def initialize(mood: :fine)
self.mood = mood
end
end
Both behave like this:
[1] pry(main)> Person.moods
=> {:awesome=>0, :excellent=>1, :great=>2, :good=>3, :fine=>4}
[2] pry(main)> necojackarc = Person.new(mood: :awesome)
=> #<Person:0x007fd5cbbf5dd0 @mood=0>
[3] pry(main)> necojackarc.awesome?
=> true
[4] pry(main)> necojackarc.excellent?
=> false
[5] pry(main)> necojackarc.great!
=> :great
[6] pry(main)> necojackarc.awesome?
=> false
[7] pry(main)> necojackarc.great?
=> true
[8] pry(main)> necojackarc.mood = :fine
=> :fine
[9] pry(main)> necojackarc.great?
=> false
[10] pry(main)> necojackarc.fine?
=> true
[11] pry(main)> necojackarc.mood = 1 # excellent
=> 1
[12] pry(main)> necojackarc.fine?
=> false
[13] pry(main)> necojackarc.excellent?
=> true
[14] pry(main)> necojackarc.mood
=> :excellent
[15] pry(main)> necojackarc.mood = "good"
=> "good"
[16] pry(main)> necojackarc.mood
=> :good
License
The gem is available as open source under the terms of the MIT License.