1 files changed, 29 insertions, 0 deletions

diff --git a/db/migrate/20090815220058_migrate_tagging_tables.rb b/db/migrate/20090815220058_migrate_tagging_tables.rb
new file mode 100644
index 0000000..59e054f
--- /dev/null
+++ b/db/migrate/20090815220058_migrate_tagging_tables.rb
@@ -0,0 +1,29 @@
+class MigrateTaggingTables < ActiveRecord::Migration
+  def self.up
+    add_column :tags,     :taggings_count, :integer, :default => 0, :null => false
+    add_column :taggings, :user_id, :integer
+    
+    add_index :tags, :name 
+    add_index :tags, :taggings_count
+    
+     Find objects for a tag
+    add_index :taggings, [:user_id, :tag_id, :taggable_type]
+    
+     Find tags for an object 
+    add_index :taggings, [:user_id, :taggable_id, :taggable_type]
+  end
+
+  def self.down
+    remove_column :tags,     :taggings_count
+    remove_column :taggings, :user_id
+    
+    remove_index :tags, :name 
+    remove_index :tags, :taggings_count
+    
+    # Find objects for a tag
+    remove_index :taggings, [:user_id, :tag_id, :taggable_type]
+    
+    # Find tags for an object 
+    remove_index :taggings, [:user_id, :taggable_id, :taggable_type]
+  end
+end