def change
create_table :friendly_id_slugs do |t|
t.string :slug, :null => false
t.integer :sluggable_id, :null => false
t.string :sluggable_type, :limit => 50
t.string :scope
t.datetime :created_at
end
add_index :friendly_id_slugs, :sluggable_id
add_index :friendly_id_slugs, [:slug, :sluggable_type], length: { slug: 140, sluggable_type: 50 }
add_index :friendly_id_slugs, [:slug, :sluggable_type, :scope], length: { slug: 70, sluggable_type: 50, scope: 70 }, unique: true
add_index :friendly_id_slugs, :sluggable_type
end