Thank you to anyone who has already donated - your generous donations helped make three months of treatment possible.

My brother Nate continues to fight stage IV Hodgkin's lymphoma. He's just 31, with a wife and baby girl. They have no active income (since he's been unable to return to work), no insurance, and cannot afford the treatment he needs. Nate and his family need your help. Please consider a donation, every dollar helps. Thanks.

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class AddActsAsTaggableTables < ActiveRecord::Migration 
  def self.up 
    create_table :tags do |t| 
      t.column :name, :string
      t.column :taggings_count, :integer, :default => 0, :null => false
    end 
    add_index :tags, :name 
    add_index :tags, :taggings_count

    create_table :taggings do |t| 
      t.column :tag_id, :integer 
      t.column :taggable_id, :integer 
      t.column :taggable_type, :string
      t.column :user_id, :integer
    end     

    # Find objects for a tag
    add_index :taggings, [:tag_id, :taggable_type] 
    add_index :taggings, [:user_id, :tag_id, :taggable_type]
    # Find tags for an object 
    add_index :taggings, [:taggable_id, :taggable_type] 
    add_index :taggings, [:user_id, :taggable_id, :taggable_type]
  end 

  def self.down 
    drop_table :tags 
    drop_table :taggings 
  end 
end