Adding versioning

db/migrate/20131009050712_create_spaces.rb

@@ -2,7 +2,7 @@ class CreateSpaces < ActiveRecord::Migration
   def change
     create_table :spaces do |t|
       t.string :name
-      t.string :type
+      t.string :category
       t.string :address
       t.string :hours
       t.string :phone

db/migrate/20131009051102_create_versions.rb

@@ -0,0 +1,18 @@
+class CreateVersions < ActiveRecord::Migration
+  def self.up
+    create_table :versions do |t|
+      t.string   :item_type, :null => false
+      t.integer  :item_id,   :null => false
+      t.string   :event,     :null => false
+      t.string   :whodunnit
+      t.text     :object
+      t.datetime :created_at
+    end
+    add_index :versions, [:item_type, :item_id]
+  end
+
+  def self.down
+    remove_index :versions, [:item_type, :item_id]
+    drop_table :versions
+  end
+end

db/schema.rb

@@ -11,11 +11,11 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20131009050712) do
+ActiveRecord::Schema.define(version: 20131009051102) do
 
   create_table "spaces", force: true do |t|
     t.string   "name"
-    t.string   "type"
+    t.string   "category"
     t.string   "address"
     t.string   "hours"
     t.string   "phone"
@@ -26,4 +26,15 @@ ActiveRecord::Schema.define(version: 20131009050712) do
     t.datetime "updated_at"
   end
 
+  create_table "versions", force: true do |t|
+    t.string   "item_type",  null: false
+    t.integer  "item_id",    null: false
+    t.string   "event",      null: false
+    t.string   "whodunnit"
+    t.text     "object"
+    t.datetime "created_at"
+  end
+
+  add_index "versions", ["item_type", "item_id"], name: "index_versions_on_item_type_and_item_id"
+
 end