shlima / Translate_enum
Licence: mit
Easily Translate Enums in Rails
Stars: ✭ 90
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TranslateEnum
Simple, zero-dependant enum
translation gem for Rails
Installation
gem install translate_enum
Usage
Here is a regular use case. ActiveRecord model:
class Post < ActiveRecord::Base
include TranslateEnum
enum status: { published: 0, archive: 1 }
translate_enum :status
end
Localization file
en:
activerecord:
attributes:
post:
status_list:
published: Was published
archive: Was archived
Or if you wish your locales to be available across all models
en:
attributes:
status_list:
published: Was published
archive: Was archived
Post.translated_status(:published) #=> "Was published"
Post.translated_statuses => [["Was published", :published, 0], ["Was archived", :archive, 1]]
@post = Post.new(status: :published)
@post.translated_status #=> "Was published"
Use in a Form
= form_for @post do |f|
= f.select :status, options_for_select(f.object.class.translated_statuses.map { |translation, k, _v| [translation, k] })
Extending ActiveRecord
Be default you should extend each ActiveRecord
model manually by including TranslateEnum
module in it.
You can extend ActiveRecord
by requiring translate_enum/active_record
in initializer or inside yout Gemfile
:
Gemfile:
gem 'translate_enum', require: 'translate_enum/active_record'
Initializer:
# config/initializers/translate_enum.rb
require 'translate_enum/active_record'
Advanced options
class User < ActiveRecord::Base
enum gender: [:male, :female]
translate_enum :gender do |tr|
tr.i18n_scope = 'activerecord.attributes'
tr.i18n_key = 'gender_list'
tr.enum_klass_method_name = 'genders'
tr.enum_instance_method_name = 'gender'
tr.method_name_singular = 'translated_gender'
tr.method_name_plural = 'translated_genders'
end
# Or even provide your own logic
def self.translated_gender(key)
I18n.t(key, scope: 'global.gender_list')
end
end
How To?
How use translate enum in serializer
Example for Grape:
class Feedback < ApplicationRecord
include TranslateEnum
enum topic: {
question: 'question', issue: 'issue', complaint: 'complaint', offer: 'offer',
investment: 'investment'
}
translate_enum :topic
end
class FeedbacksApi < Grape::API
resource :feedbacks do
get 'enums' do
present Feedback.method(:translated_topics), with: TranslateEnumSerializer
end
end
end
class TranslateEnumSerializer < Grape::Entity
expose :enum, as: ->(method) { method.name[/translated_(.*)/, 1] } do |method|
method.call.map do |translation, key, _value|
{ value: key, translation: translation }
end
end
end
curl http://localhost:3000/feedbacks/enums
{
"topics": [
{
"value": "question",
"translation": "Vopros"
},
{
"value": "issue",
"translation": "Problema"
},
{
"value": "complaint",
"translation": "Zhaloba"
},
{
"value": "offer",
"translation": "Predlozhenie"
},
{
"value": "investment",
"translation": "Invisticii"
}
]
}
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