Reenable barcodes for items, generate migration to assign barcode data

app/models/item.rb

@@ -23,6 +23,8 @@ class Item < ActiveRecord::Base
   validates :name, presence: true, uniqueness: true
   validates :price, presence: true, numericality: { only_integer: true, greater_than_or_equal_to: 0 }
 
+  before_create :generate_barcode
+
   def price
     from_cents read_attribute(:price)
   end

db/migrate/20150420181046_add_barcode_to_all_items.rb

@@ -0,0 +1,10 @@
+class AddBarcodeToAllItems < ActiveRecord::Migration
+  def change
+    Item.all.each do |i|
+      if i.barcode.nil?
+        i.generate_barcode
+        i.save
+      end
+    end
+  end
+end

db/schema.rb

@@ -11,20 +11,20 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20140826191310) do
+ActiveRecord::Schema.define(version: 20150420181046) do
 
-  create_table "items", force: true do |t|
-    t.string   "name"
-    t.string   "description"
+  create_table "items", force: :cascade do |t|
+    t.string   "name",         limit: 255
+    t.string   "description",  limit: 255
     t.integer  "price"
     t.datetime "created_at"
     t.datetime "updated_at"
     t.integer  "quantity"
-    t.string   "barcode"
-    t.string   "barcode_data"
+    t.string   "barcode",      limit: 255
+    t.string   "barcode_data", limit: 255
   end
 
-  create_table "reservations", force: true do |t|
+  create_table "reservations", force: :cascade do |t|
     t.integer  "item_id"
     t.integer  "user_id"
     t.integer  "count"
@@ -41,44 +41,44 @@
   add_index "reservations", ["item_id"], name: "index_reservations_on_item_id"
   add_index "reservations", ["user_id"], name: "index_reservations_on_user_id"
 
-  create_table "settings", force: true do |t|
+  create_table "settings", force: :cascade do |t|
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.string   "email"
+    t.string   "email",      limit: 255
     t.datetime "deadline"
-    t.string   "name"
+    t.string   "name",       limit: 255
   end
 
-  create_table "users", force: true do |t|
-    t.string   "email",                  default: "",        null: false
-    t.string   "encrypted_password",     default: "",        null: false
-    t.string   "reset_password_token"
+  create_table "users", force: :cascade do |t|
+    t.string   "email",                  limit: 255, default: "",        null: false
+    t.string   "encrypted_password",     limit: 255, default: "",        null: false
+    t.string   "reset_password_token",   limit: 255
     t.datetime "reset_password_sent_at"
     t.datetime "remember_created_at"
-    t.integer  "sign_in_count",          default: 0,         null: false
+    t.integer  "sign_in_count",                      default: 0,         null: false
     t.datetime "current_sign_in_at"
     t.datetime "last_sign_in_at"
-    t.string   "current_sign_in_ip"
-    t.string   "last_sign_in_ip"
+    t.string   "current_sign_in_ip",     limit: 255
+    t.string   "last_sign_in_ip",        limit: 255
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.string   "authentication_token"
-    t.string   "role",                   default: "partner"
-    t.string   "name"
-    t.boolean  "sent",                   default: true
-    t.string   "barcode"
-    t.string   "barcode_data"
+    t.string   "authentication_token",   limit: 255
+    t.string   "role",                   limit: 255, default: "partner"
+    t.string   "name",                   limit: 255
+    t.boolean  "sent",                               default: true
+    t.string   "barcode",                limit: 255
+    t.string   "barcode_data",           limit: 255
   end
 
   add_index "users", ["authentication_token"], name: "index_users_on_authentication_token"
   add_index "users", ["email"], name: "index_users_on_email", unique: true
   add_index "users", ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
 
-  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"
+  create_table "versions", force: :cascade do |t|
+    t.string   "item_type",      limit: 255, null: false
+    t.integer  "item_id",                    null: false
+    t.string   "event",          limit: 255, null: false
+    t.string   "whodunnit",      limit: 255
     t.text     "object"
     t.datetime "created_at"
     t.text     "object_changes"