adds activities

db/migrate/20150921095553_create_activities.rb

@@ -0,0 +1,13 @@
+class CreateActivities < ActiveRecord::Migration
+  def change
+    create_table :activities do |t|
+      t.integer :user_id
+      t.string :action
+      t.belongs_to :actionable, polymorphic: true
+      t.timestamps
+    end
+
+    add_index :activities, [:actionable_id, :actionable_type]
+    add_index :activities, :user_id
+  end
+end

db/schema.rb

@@ -11,11 +11,23 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20150917102718) do
+ActiveRecord::Schema.define(version: 20150921095553) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
+  create_table "activities", force: :cascade do |t|
+    t.integer  "user_id"
+    t.string   "action"
+    t.integer  "actionable_id"
+    t.string   "actionable_type"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
+  add_index "activities", ["actionable_id", "actionable_type"], name: "index_activities_on_actionable_id_and_actionable_type", using: :btree
+  add_index "activities", ["user_id"], name: "index_activities_on_user_id", using: :btree
+
   create_table "addresses", force: :cascade do |t|
     t.integer  "user_id"
     t.string   "street"