Added carousel model

app/models/conference.rb

@@ -31,7 +31,7 @@ class Conference < ActiveRecord::Base
   has_many :vdays, :dependent => :destroy
   has_many :vpositions, :dependent => :destroy
   has_many :vchoices, :dependent => :destroy
-
+  has_many :photos, dependent: :destroy
   belongs_to :venue
 
   accepts_nested_attributes_for :rooms, :reject_if => proc {|r| r["name"].blank?}, :allow_destroy => true

app/models/photo.rb

@@ -0,0 +1,11 @@
+class Photo < ActiveRecord::Base
+  attr_accessible :picture, :description
+  belongs_to :conference
+  validates_presence_of :picture
+  has_attached_file :picture,
+                    styles: { thumb: '100x100>', large: '300x300>' }
+
+  validates_attachment_content_type :picture,
+                                    content_type: [/jpg/, /jpeg/, /png/, /gif/],
+                                    size: { in: 0..500.kilobytes }
+end

db/migrate/20140610064046_create_photos.rb

@@ -0,0 +1,13 @@
+class CreatePhotos < ActiveRecord::Migration
+  def change
+    create_table :photos do |t|
+      t.text :description
+      t.string :picture_file_name
+      t.string :picture_content_type
+      t.integer :picture_file_size
+      t.datetime :picture_updated_at
+      t.belongs_to :conference
+      t.timestamps
+    end
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20140605125153) do
+ActiveRecord::Schema.define(version: 20140610064046) do
 
   create_table "answers", force: true do |t|
     t.string   "title"
@@ -50,15 +50,15 @@ ActiveRecord::Schema.define(version: 20140605125153) do
   add_index "comments", ["user_id"], name: "index_comments_on_user_id"
 
   create_table "conferences", force: true do |t|
-    t.string   "guid",                                         null: false
+    t.string   "guid",                                     null: false
-    t.string   "title",                                        null: false
+    t.string   "title",                                    null: false
-    t.string   "short_title",                                  null: false
+    t.string   "short_title",                              null: false
     t.string   "social_tag"
-    t.string   "contact_email",                                null: false
+    t.string   "contact_email",                            null: false
-    t.string   "timezone",                                     null: false
+    t.string   "timezone",                                 null: false
     t.string   "html_export_path"
-    t.date     "start_date",                                   null: false
+    t.date     "start_date",                               null: false
-    t.date     "end_date",                                     null: false
+    t.date     "end_date",                                 null: false
     t.integer  "venue_id"
     t.datetime "created_at"
     t.datetime "updated_at"
@@ -209,6 +209,17 @@ ActiveRecord::Schema.define(version: 20140605125153) do
     t.string   "languages"
   end
 
+  create_table "photos", force: true do |t|
+    t.text     "description"
+    t.string   "picture_file_name"
+    t.string   "picture_content_type"
+    t.integer  "picture_file_size"
+    t.datetime "picture_updated_at"
+    t.integer  "conference_id"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
   create_table "qanswers", force: true do |t|
     t.integer "question_id"
     t.integer "answer_id"
@@ -308,9 +319,9 @@ ActiveRecord::Schema.define(version: 20140605125153) do
   end
 
   create_table "tracks", force: true do |t|
-    t.string   "guid",                              null: false
+    t.string   "guid",          null: false
     t.integer  "conference_id"
-    t.string   "name",                              null: false
+    t.string   "name",          null: false
     t.text     "description"
     t.string   "color"
     t.datetime "created_at"

spec/factories/photos.rb

@@ -0,0 +1,12 @@
+# Read about factories at https://github.com/thoughtbot/factory_girl
+
+FactoryGirl.define do
+  factory :photo do
+    picture_file_name 'rails.png'
+    picture_content_type 'image/png'
+    picture_file_size '1024'
+    picture_updated_at DateTime.now
+    description 'Lorem Ipsum Dolor'
+    conference
+  end
+end

spec/models/photo_spec.rb

@@ -0,0 +1,14 @@
+require 'spec_helper'
+
+describe Photo do
+  describe 'validations' do
+
+    it 'has a valid factory' do
+      expect(build(:photo)).to be_valid
+    end
+
+    it 'is not valid without a picture' do
+      should validate_presence_of(:picture)
+    end
+  end
+end