README.md
# Olson
*Apparently it's a reference to Mad Men and Draper...*
[![Gem Version](https://badge.fury.io/rb/olson.png)](http://badge.fury.io/rb/olson)
[![Coverage Status](https://coveralls.io/repos/carnesmedia/olson/badge.png?branch=master)](https://coveralls.io/r/carnesmedia/olson)
[![Code Climate](https://codeclimate.com/github/carnesmedia/olson.png)](https://codeclimate.com/github/carnesmedia/olson)
Olson is a tool to help display identifiers to users. It’s basically a way to turn your decorator in to a wrapper for `.humanize` with automatic built-in support for I18n.
See [Using I18n and Draper to Render Database Attributes](http://blog.amielmartin.com/post/12341219947/using-i18n-and-draper-to-render-database-attributes) to read more about this concept.
## Installation
Add this line to your application's Gemfile:
gem 'olson'
And then execute:
$ bundle
Or install it yourself as:
$ gem install olson
## Usage
Olson was designed to be used with [Draper](https://github.com/drapergem/draper). With some extra configuration, it can be used without Draper: see the **Usage without Draper** section below.
### Basic usage
```ruby
class UserDecorator < Draper::Decorator
include Olson
humanizes :status
end
user = User.first
user.status # => "submitted"
UserDecorator.decorate(user).status # => "Submitted"
```
### I18n
Olson will automatically utilize any i18n set in `config/locales` as well:
```ruby
status:
accepted: "Accepted and awesome"
submitted: "Still out in space"
not_available: "N/A"
```
```ruby
class UserDecorator < Draper::Decorator
include Olson
humanizes :status
end
user = User.first
user.status # => "submitted"
UserDecorator.decorate(user).status # => "Still out in space"
```
Olson will search the following I18n keys:
* `user.status.submitted`
* `status.submitted`
* `submitted`
### Options for select
If you define a specific class-level method with the options for an attribute, Olson will prepare options for select attributes in rails.
```ruby
# app/models/user.rb
class User < ActiveRecord::Base
def self.status_options
%w(submitted approved not_available)
end
end
# config/locales/en.yml
en:
user:
status:
not_available: "N/A"
# app/decorators/user_decorator.rb
class UserDecorator < Draper::Decorator
humanizes :status
end
# Example
UserDecorator.status_options # => [["Submitted", "submitted"], ["Approved", "approved"], ["N/A", "not_available"]]
# app/views/users/_form.html.erb
<%# using formtastic or simple_form %>
<%= f.input :status, collection: UserDecorator.status_options %>
```
For usage in Rails with Draper, drop this into an initializer:
```ruby
class Draper::Decorator
include Olson
end
```
## Usage without Draper
Olson can be used without Draper by defining `model`, `model_class`, and `model_name`.
## Contributing
1. Fork it
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 new Pull Request