Groupy

Categorise records into nested groups of values.

Example

Define our groups

class Food
  property :dish, String

  include Groupy
  groupy :dish do
    group :healthy do
      group :fruit do
        value :apple
        value :orange
      end
      value :rice
    end

    group :unhealthy do
      value :fried_egg
      value :bacon
    end
  end
end

We can then ask a particular food:

apple.healthy?
apple.fruit?
apple.apple?

And we can scope the class by any of these groups

Food.apples.count
Food.fruits.all

We also get a magic "all_" method

Food.all_dishes

You can also tell groupy to add the column name as a suffix

class Something
  groupy :size, :suffix => true do
    value :small
    value :medium
    value :large
  end
end

something.small_size?

Or you may want to store all the values as a conveniently named constant.

class Something
  groupy :size, :constants => true do
    value :small
    value :medium
    value :large
  end
end

Something::SMALL
Something::MEDIUM
Something::LARGE

Or of course you can do both together

Something::SMALL_SIZE
Something::MEDIUM_SIZE
Something::LARGE_SIZE

Any values will be lowercased and underscored

class Something
  groupy :type do
    value :SomeClass
    value :"Namespace::KlassName"
  end
end

something.some_class?
something.namespace_klass_name?

B00m!

groupy

Development

Runtime

Groupy

Example