Squash migrations.

This also makes sure tags and taggings tables doesn't exist before
trying to create them.

1 files changed, 14 insertions, 12 deletions

diff --git a/db/migrate/20110803223524_acts_as_taggable_on_migration.rb b/db/migrate/20110803223524_acts_as_taggable_on_migration.rb
index 812daf4..49a6ca2 100644
--- a/db/migrate/20110803223524_acts_as_taggable_on_migration.rb
+++ b/db/migrate/20110803223524_acts_as_taggable_on_migration.rb
@@ -2,23 +2,25 @@ class ActsAsTaggableOnMigration < ActiveRecord::Migration
   def up
     create_table :tags do |t|
       t.string :name
-    end
+    end unless table_exists?(:tags)
 
-    create_table :taggings do |t|
-      t.references :tag
+    unless table_exists?(:taggings)
+      create_table :taggings do |t|
+        t.references :tag
 
-      # You should make sure that the column created is
-      # long enough to store the required class names.
-      t.references :taggable, :polymorphic => true
-      t.references :tagger, :polymorphic => true
+        # You should make sure that the column created is
+        # long enough to store the required class names.
+        t.references :taggable, :polymorphic => true
+        t.references :tagger, :polymorphic => true
 
-      t.string :context
+        t.string :context
 
-      t.datetime :created_at
-    end
+        t.datetime :created_at
+      end
 
-    add_index :taggings, :tag_id
-    add_index :taggings, [:taggable_id, :taggable_type, :context]
+      add_index :taggings, :tag_id
+      add_index :taggings, [:taggable_id, :taggable_type, :context]
+    end
   end
 
   def down