adding indexes to foreign keys

db/migrate/20081019160922_add_indexes.rb

@@ -0,0 +1,23 @@
+class AddIndexes < ActiveRecord::Migration
+  def self.up
+    add_index :users, :openid_url
+    add_index :projects, :user_id
+    add_index :projects, :token
+    add_index :color_swatches, :palette_id
+    add_index :activities, :user_id
+    %w[code_snippets palettes links notes photos screenshots activities].each do |table|
+      add_index table, :project_id
+    end
+  end
+
+  def self.down
+    remove_index :users, :openid_url
+    remove_index :projects, :user_id
+    remove_index :projects, :token
+    remove_index :color_swatches, :palette_id
+    remove_index :activities, :user_id
+    %w[code_snippets palettes links notes photos screenshots activities].each do |table|
+      remove_index table, :project_id
+    end
+  end
+end

db/schema.rb

@@ -9,7 +9,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20081018215938) do
+ActiveRecord::Schema.define(:version => 20081019160922) do
 
   create_table "activities", :force => true do |t|
     t.string   "message"
@@ -19,6 +19,9 @@
     t.datetime "updated_at"
   end
 
+  add_index "activities", ["project_id"], :name => "index_activities_on_project_id"
+  add_index "activities", ["user_id"], :name => "index_activities_on_user_id"
+
   create_table "code_snippets", :force => true do |t|
     t.integer  "project_id"
     t.string   "name"
@@ -28,13 +31,17 @@
     t.datetime "updated_at"
   end
 
+  add_index "code_snippets", ["project_id"], :name => "index_code_snippets_on_project_id"
+
   create_table "color_swatches", :force => true do |t|
     t.integer  "palette_id"
     t.string   "hex"
     t.datetime "created_at"
     t.datetime "updated_at"
   end
 
+  add_index "color_swatches", ["palette_id"], :name => "index_color_swatches_on_palette_id"
+
   create_table "links", :force => true do |t|
     t.string   "name"
     t.integer  "project_id"
@@ -44,6 +51,8 @@
     t.datetime "updated_at"
   end
 
+  add_index "links", ["project_id"], :name => "index_links_on_project_id"
+
   create_table "notes", :force => true do |t|
     t.string   "name"
     t.text     "content"
@@ -52,6 +61,8 @@
     t.datetime "updated_at"
   end
 
+  add_index "notes", ["project_id"], :name => "index_notes_on_project_id"
+
   create_table "open_id_authentication_associations", :force => true do |t|
     t.integer "issued"
     t.integer "lifetime"
@@ -74,6 +85,8 @@
     t.datetime "updated_at"
   end
 
+  add_index "palettes", ["project_id"], :name => "index_palettes_on_project_id"
+
   create_table "photos", :force => true do |t|
     t.string   "name"
     t.integer  "project_id"
@@ -85,6 +98,8 @@
     t.datetime "image_updated_at"
   end
 
+  add_index "photos", ["project_id"], :name => "index_photos_on_project_id"
+
   create_table "projects", :force => true do |t|
     t.string   "name"
     t.text     "description"
@@ -95,6 +110,9 @@
     t.string   "token"
   end
 
+  add_index "projects", ["token"], :name => "index_projects_on_token"
+  add_index "projects", ["user_id"], :name => "index_projects_on_user_id"
+
   create_table "screenshots", :force => true do |t|
     t.string   "name"
     t.integer  "project_id"
@@ -103,6 +121,8 @@
     t.datetime "updated_at"
   end
 
+  add_index "screenshots", ["project_id"], :name => "index_screenshots_on_project_id"
+
   create_table "users", :force => true do |t|
     t.string   "username"
     t.string   "email"
@@ -113,4 +133,6 @@
     t.string   "openid_url"
   end
 
+  add_index "users", ["openid_url"], :name => "index_users_on_openid_url"
+
 end