How do I add tags to my Mode resource using Activeadmin?
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I have a Model called Restaurants, and each restaurants is tagged. My tagging system is emplemented like so:

    class Restaurant < ActiveRecord:: Base

     has_many :taggings, :dependent => :destroy
     has_many :tags, :through => :taggings
     attr_writer :tag_name

     def tag_names
       @tag_names || tags.map(&:name).join(', ')
     end
    end


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    class Tagging < ActiveRecord::Base

     attr_accessible :restaurant_id, :tag_id
     belongs_to :restaurant
     belongs_to :tag

    end
    
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    class Tag < ActiveRecord::Base

     attr_accessible :name
     has_many :taggings, :dependent => :destroy
     has_many :restaurants, :through => :taggings

    end


I'd like to be able to add/edit tags from my activeadmin generated index page for the Restaurant model.  How do I achieve this?


