def self.up

if defined?(Manufacturer)

ts = TagSet.find_or_create_by_name('manufacturer')

Manufacturer.find(:all).each do |m|

pp = m.products

desc = m.description

if m.image_path

desc = "#{desc}<img src=\"#{m.image_path}\" alt=\"#{m.image_alt}\"/>"

end

if m.site_url

desc = "#{desc}<a href=\"#{m.site_url}\">Visit #{m.name} at #{m.site_url}</a>"

end

t = Tag.create(

:display_name => m.name,

:slug => m.slug,

:tag_set_id => ts.id,

:full_description => desc

)

raise t.errors.full_messages.join("\n") if t.new_record?

m.destroy

pp.tags << t

end

end if defined?(Manufacturer)

remove_column :products, :manufacturer_id

drop_table :manufacturers

end

def self.down

create_table "manufacturers", :force => true do |t|

t.column "name", :string

t.column "slug", :string

t.column "description", :string

t.column "image_path", :string

t.column "image_alt", :string

t.column "site_url", :string

t.column "updated_at", :datetime

end

add_column :products, :manufacturer_id, :integer

end