This gem is heaviliy influenced by Aaron Qians mongoid_taggable_with_context gem. I needed a way to tag a model and let a contextual scope of that model hold meta-data about the tags.
In example: when I tag a product with “nice”, I wanted the products category to know how many products was tagged with “nice”. I also wanted to store additional data about this tag such as color (i.e colored labels on gmail.)
This is my first gem ever, and it is experimental at the moment. Use it at your own risk…
class Product include Mongoid::Document include Mongoid::Tag belongs_to :category tag :tags, :meta_in => :category end class Category include Mongoid::Document include Mongoid::Tag::Meta tag_meta_for :tags end @c = Category.create @product = Product.create(:tags => "new, expensive", :category => @c) @product.tags => ["new", "expensive"] @category.tags_with_weight => [["new", 1], ["expensive", 1]] @category.add_tag("on sale", {:color => "#a2a2a2"}) #add any meta you want @category.tags_with_meta => [["new", {:count => 1}], ["expensive", {:count => 1}], ["on sale", {:count => 0, :color => "#a2a2a2"}]]
@category.products.with_all_tags(['tag1', 'tag2']) => products tagged with both @category.products.with_any_tags(['tag1', 'tag2']) => products tagged with one or both @category.products.without_tags(['tag1', 'tag2']) => products not with any of tags