Ehon is a simple enum library.
Add this line to your application's Gemfile:
gem 'ehon'
And then execute:
$ bundle
Or install it yourself as:
$ gem install ehon
You can create your enum class easily.
class DeviceType
include Ehon
default user_agent_regexp: //
UNKNOWN = enum 0, name: 'unknown'
IOS = enum 1, name: 'iOS', user_agent_regexp: /(iPhone|iPad|iPod)/
ANDROID = enum 2, name: 'Android', user_agent_regexp: /Android/
endUsing DeviceType class.
DeviceType::IOS.id #=> 1
DeviceType::ANDROID.user_agent_regexp #=> /Android/You can find your item from enum class with following 2 way.
DeviceType[1, 2] #=> [#<DeviceType:...(iOS)>, #<DeviceType:...(Android)>]
DeviceType.find(name: 'iOS') #=> #<DeviceType:...(iOS)>and you also list all items using #all method
DeviceType.all #=> [iOS, Android, unknown]You can define any method for your enum class.
class DeviceType
def ios?
self.name == "iOS"
end
def android?
self.name == "Android"
end
def unknown?
self.name == "unknown"
end
def valid_user_agent?(user_agent)
!!(self.user_agent_regexp =~ user_agent)
end
endDeviceType::IOS.ios? #=> true
DeviceType::IOS.android? #=> false
user_agent = 'Mozilla/5.0 (Linux; Android 4.4.4; KYV33 Build/xxxx)'
DeviceType::ANDROID.valid_user_agent?(user_agent) #=> true- Fork it ( http://github.com/hekk/ehon/fork )
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create new Pull Request
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