TaggingAlong

Super lightweight alternative to all the other tagging gems out there.

Installation

Add this line to your application's Gemfile:

gem 'tagging_along'

And then execute:

$ bundle

Or install it yourself as:

$ gem install tagging_along

Include the gem in the model you want to use it with:

class User
  include TaggingAlong
end

and define the attributes that are taggable inside the class:

class User
  include TaggingAlong
  attr_accessor :cars

  is_taggable_on :cars
end

Instances of your class will now have taggable attributes. For example:

user = User.new
user.cars = 'Audi,BMW'

user.cars_tags
# => ['Audi', 'BMW']

user.cars_list
# => 'Audi, BMW'

You can also specify a custom separator:

class User
  include TaggingAlong
  attr_accessor :cars

  is_taggable_on :cars, separator: ':'
end

which will play out like this:

user = User.new
user.cars = 'Audi:BMW'

user.cars_tags
# => ['Audi', 'BMW']

user.cars_list
# => 'Audi: BMW'

You can define multiple taggable attributes in one go:

class User
  include TaggingAlong
  attr_accessor :cars, :qualifications

  is_taggable_on :cars, :qualifications
end

That's it!

If you use RSpec, you can check if your model is taggable like this:

User.should be_taggable_on :cars