From a68e7eca56459d1418bd7d87efcf4c75bd7020f1 Mon Sep 17 00:00:00 2001
From: Ilya Konanykhin <ilya.konanykhin@gmail.com>
Date: Wed, 18 Jan 2017 17:18:32 +0600
Subject: [PATCH 1/7] User avatar upload at sign up

---
 Gemfile                                               |  1 +
 Gemfile.lock                                          | 11 +++++++++++
 app/models/user.rb                                    | 11 ++++++++++-
 app/views/devise/registrations/new.html.haml          |  6 ++++++
 .../20170118110330_add_attachment_avatar_to_users.rb  | 11 +++++++++++
 db/schema.rb                                          |  6 +++++-
 6 files changed, 44 insertions(+), 2 deletions(-)
 create mode 100644 db/migrate/20170118110330_add_attachment_avatar_to_users.rb

diff --git a/Gemfile b/Gemfile
index 2c43331..a18b60c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -18,6 +18,7 @@ gem 'jquery-rails', '~> 2.0'
 gem 'pg', '~> 0.17.1'
 gem 'will_paginate', '~> 3.0.3'
 gem 'jbuilder', '~> 2.0.3'
+gem 'paperclip', '~> 4.3'
 
 # Assets
 gem 'sass-rails', '~> 3.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 932a1cf..db4fb0a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -57,7 +57,10 @@ GEM
       xpath (~> 2.0)
     childprocess (0.5.9)
       ffi (~> 1.0, >= 1.0.11)
+    climate_control (0.1.0)
     cliver (0.3.2)
+    cocaine (0.5.8)
+      climate_control (>= 0.0.3, < 1.0)
     coderay (1.1.1)
     coffee-rails (3.2.2)
       coffee-script (>= 2.2.0)
@@ -129,6 +132,7 @@ GEM
       treetop (~> 1.4.8)
     method_source (0.8.2)
     mime-types (1.25.1)
+    mimemagic (0.3.0)
     mini_portile2 (2.0.0)
     momentjs-rails (2.15.1)
       railties (>= 3.1)
@@ -148,6 +152,12 @@ GEM
       nenv (~> 0.1)
       shellany (~> 0.0)
     orm_adapter (0.0.7)
+    paperclip (4.3.7)
+      activemodel (>= 3.2.0)
+      activesupport (>= 3.2.0)
+      cocaine (~> 0.5.5)
+      mime-types
+      mimemagic (= 0.3.0)
     pg (0.17.1)
     poltergeist (1.5.1)
       capybara (~> 2.1)
@@ -261,6 +271,7 @@ DEPENDENCIES
   netzke-basepack (~> 0.8.0)
   netzke-cancan
   netzke-core (~> 0.8.0)
+  paperclip (~> 4.3)
   pg (~> 0.17.1)
   poltergeist (~> 1.5.0)
   pry (~> 0.9.8)
diff --git a/app/models/user.rb b/app/models/user.rb
index a455258..b5fd9d0 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -1,4 +1,6 @@
 class User < ActiveRecord::Base
+  MAX_AVATAR_SIZE_KB = 1024
+
   acts_as_loggable
   # Include default devise modules. Others available are:
   # :token_authenticatable, :encryptable, :confirmable, :lockable, :timeoutable and :omniauthable
@@ -8,7 +10,7 @@ class User < ActiveRecord::Base
   # Setup accessible (or protected) attributes for your model
   attr_accessible :email, :password, :password_confirmation, :remember_me,
     :first_name, :last_name, :bike_id,
-    :user_profiles_attributes, :username
+    :user_profiles_attributes, :username, :avatar
 
   has_many :transactions, as: :customer
   has_many :transaction_logs, through: :transactions, source: :logs
@@ -20,11 +22,18 @@ class User < ActiveRecord::Base
 
   belongs_to :bike
 
+  has_attached_file :avatar, :styles => {:thumb => '100x100>'}
+
   default_scope order('username ASC')
 
   validates :first_name, :presence => true
   validates :last_name, :presence => true
 
+  validates_attachment :avatar, :content_type => {:content_type => %w{ image/jpeg image/gif image/png }},
+                                :file_name => {:matches => [/png\Z/, /jpe?g\Z/, /gif\Z/]},
+                                :size => {:in => 0..MAX_AVATAR_SIZE_KB.kilobytes}
+
+
   def to_s
     "#{first_name} #{last_name}"
   end
diff --git a/app/views/devise/registrations/new.html.haml b/app/views/devise/registrations/new.html.haml
index 823795a..05269ab 100644
--- a/app/views/devise/registrations/new.html.haml
+++ b/app/views/devise/registrations/new.html.haml
@@ -23,6 +23,12 @@
         = f.fields_for :user_profiles, profile_builder do |builder|
           = render 'user_profile_fields', f: builder
 
+      %fieldset
+        .form-group
+          %label You may upload your photo to be used as an avatar
+          = f.file_field :avatar
+          .help-block #{User::MAX_AVATAR_SIZE_KB} Kb max
+
       %fieldset
         .form-group
           = f.password_field :password, placeholder: 'Password', class: 'form-control'
diff --git a/db/migrate/20170118110330_add_attachment_avatar_to_users.rb b/db/migrate/20170118110330_add_attachment_avatar_to_users.rb
new file mode 100644
index 0000000..1d87ba8
--- /dev/null
+++ b/db/migrate/20170118110330_add_attachment_avatar_to_users.rb
@@ -0,0 +1,11 @@
+class AddAttachmentAvatarToUsers < ActiveRecord::Migration
+  def self.up
+    change_table :users do |t|
+      t.attachment :avatar
+    end
+  end
+
+  def self.down
+    remove_attachment :users, :avatar
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 217d6a2..4cd03fb 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20131019170248) do
+ActiveRecord::Schema.define(:version => 20170118110330) do
 
   create_table "bike_actions", :force => true do |t|
     t.string   "action",     :limit => 128, :null => false
@@ -198,6 +198,10 @@ ActiveRecord::Schema.define(:version => 20131019170248) do
     t.string   "first_name",             :default => "", :null => false
     t.string   "last_name",              :default => "", :null => false
     t.string   "username"
+    t.string   "avatar_file_name"
+    t.string   "avatar_content_type"
+    t.integer  "avatar_file_size"
+    t.datetime "avatar_updated_at"
   end
 
   add_index "users", ["bike_id"], :name => "index_users_on_bike_id", :unique => true

From 5f7eb43f63618cac0cbc364d54643fa750476cde Mon Sep 17 00:00:00 2001
From: Ilya Konanykhin <ilya.konanykhin@gmail.com>
Date: Wed, 18 Jan 2017 18:38:29 +0600
Subject: [PATCH 2/7] Bike photo upload

---
 app/assets/javascripts/application.js         |    1 +
 app/assets/javascripts/bikes.js               |   28 +-
 app/assets/javascripts/utils.js               |    2 +-
 app/controllers/bikes_controller.rb           |    1 +
 app/models/bike.rb                            |    7 +-
 app/views/bikes/new.html.haml                 |  123 +-
 app/views/bikes/show.html.haml                |   63 +-
 ...118112258_add_attachment_photo_to_bikes.rb |   11 +
 db/schema.rb                                  |    6 +-
 vendor/assets/javascripts/jquery.form.js      | 1277 +++++++++++++++++
 10 files changed, 1410 insertions(+), 109 deletions(-)
 create mode 100644 db/migrate/20170118112258_add_attachment_photo_to_bikes.rb
 create mode 100644 vendor/assets/javascripts/jquery.form.js

diff --git a/app/assets/javascripts/application.js b/app/assets/javascripts/application.js
index f507af9..9c81081 100644
--- a/app/assets/javascripts/application.js
+++ b/app/assets/javascripts/application.js
@@ -16,4 +16,5 @@
 //= require utils
 //= require moment
 //= require bootstrap-datetimepicker
+//= require jquery.form
 
diff --git a/app/assets/javascripts/bikes.js b/app/assets/javascripts/bikes.js
index ba530d6..8347f10 100644
--- a/app/assets/javascripts/bikes.js
+++ b/app/assets/javascripts/bikes.js
@@ -1,31 +1,11 @@
 $('.btn').button();
 
-$("#add_bike_submit").click(function(){
-
-  json_data = { bikes: [{
-      serial_number:      $("#serial_number").val(),
-      bike_brand_id:      parseInt($("#bike_brand_id").val()),
-      shop_id:            parseInt($("#shop_id").val()),
-      model:              $("#model").val(),
-      bike_style_id:      parseInt($('input[name=bike_style]:checked').val()),
-      seat_tube_height:   parseFloat($("#seat_tube_height").val()),
-      bike_condition_id:  parseInt($('input[name=bike_condition]:checked').val()),
-      bike_purpose_id:    1,
-      bike_wheel_size_id: parseInt($("#bike_wheel_size_id").val()),
-    }]};
-
-  $.ajax({
-    url: $("#add_bike_submit").data("url"),
-    type: "POST",
-    data: JSON.stringify(json_data),
-    contentType: 'application/json',
+$("#add_bike_form").ajaxForm({
     dataType: "json",
-    success: function(data, status, xhr){
+    success: function(data){
       window.location = data.bikes[0].id + "?add_bike=1";
     },
-    error: function(data, status ){
+    error: function(data){
       displayFormErrors(data.responseJSON);
     }
-  });
-
-});
+})
\ No newline at end of file
diff --git a/app/assets/javascripts/utils.js b/app/assets/javascripts/utils.js
index edbb656..fff333e 100644
--- a/app/assets/javascripts/utils.js
+++ b/app/assets/javascripts/utils.js
@@ -2,7 +2,7 @@ function displayFormErrors(data){
   if(data.errors != undefined ){
     $.each(data.errors, function(field, errorMsg) {
       $("#"+field).closest(".form-group").addClass("has-error");
-      $("#"+field).siblings(".help-block").html(errorMsg);
+      $("#"+field).siblings(".help-block").html(errorMsg.join(", "));
     });
   }
 }
diff --git a/app/controllers/bikes_controller.rb b/app/controllers/bikes_controller.rb
index 4be68b9..754ebcf 100644
--- a/app/controllers/bikes_controller.rb
+++ b/app/controllers/bikes_controller.rb
@@ -1,6 +1,7 @@
 class BikesController < AuthenticatedController
 
   def new
+    @bike = Bike.new bike_purpose_id: 1
     @brands = BikeBrand.all.map{ |b| [b.brand, b.id] }
     @brands.unshift( ["Select a brand", -1] )
     @wheel_sizes = BikeWheelSize.all.map{ |w| [w.display_string, w.id] }
diff --git a/app/models/bike.rb b/app/models/bike.rb
index 70f2277..ef6b1ba 100644
--- a/app/models/bike.rb
+++ b/app/models/bike.rb
@@ -1,7 +1,7 @@
 class Bike < ActiveRecord::Base
   acts_as_loggable
   attr_accessible :shop_id, :serial_number, :bike_brand_id, :model, :color, :bike_style_id, :seat_tube_height,
-    :top_tube_length, :bike_wheel_size_id, :value, :bike_condition_id, :bike_purpose_id
+    :top_tube_length, :bike_wheel_size_id, :value, :bike_condition_id, :bike_purpose_id, :photo
 
   has_many :transactions
 
@@ -13,6 +13,8 @@ class Bike < ActiveRecord::Base
   belongs_to :bike_purpose
   belongs_to :bike_wheel_size
 
+  has_attached_file :photo, :styles => {:thumb => '100x100>'}
+
   validates :shop_id, :presence => true, :uniqueness => true, :numericality => { :only_integer => true }
   validates :serial_number, :length => { :minimum => 3 }
   validates :model, :length => { :maximum => 50 }
@@ -24,6 +26,9 @@ class Bike < ActiveRecord::Base
   validates :bike_condition_id, :presence => true, :numericality => { greater_than: 0, message: "is not a valid condition" }
   validates :bike_purpose_id, :presence => true, :numericality => { greater_than: 0, message: "is not a valid purpose" }
 
+  validates_attachment :photo,  :content_type => {:content_type => %w{ image/jpeg image/gif image/png }},
+                                :file_name => {:matches => [/png\Z/, /jpe?g\Z/, /gif\Z/]}
+
   self.per_page = 15
 
   after_create :create_task_list
diff --git a/app/views/bikes/new.html.haml b/app/views/bikes/new.html.haml
index 20bb3fc..fa74a38 100644
--- a/app/views/bikes/new.html.haml
+++ b/app/views/bikes/new.html.haml
@@ -4,70 +4,77 @@
 
 .row
   .col-xs-12.col-sm-6.col-lg-4
-    %fieldset
-      .form-group
-        = number_field_tag nil, nil, id: 'shop_id', placeholder: 'Shop ID', min: 0, class: 'form-control'
-        .help-block
+    = form_for @bike, as: 'bikes', index: '', url: api_create_bike_path, method: :post, enctype: 'multipart/form-data', html: {id: 'add_bike_form'} do |f|
+      = f.hidden_field 'bike_purpose_id'
+      %fieldset
+        .form-group
+          = f.number_field 'shop_id', placeholder: 'Shop ID', min: 0, class: 'form-control', id: 'shop_id'
+          .help-block
 
-      .form-group
-        = select_tag :bike_brand_id, options_for_select(@brands), class: 'form-control'
-        .help-block
+        .form-group
+          = f.select 'bike_brand_id', options_for_select(@brands), {}, class: 'form-control', id: 'bike_brand_id'
+          .help-block
 
-      .form-group
-        = text_field_tag nil, nil, id: 'model', placeholder: 'Model', class: 'form-control'
-        .help-block
+        .form-group
+          = f.text_field 'model', placeholder: 'Model', class: 'form-control', id: 'model'
+          .help-block
 
-      .form-group
-        = text_field_tag nil, nil, id: 'serial_number', placeholder: 'Serial Number', class: 'form-control'
-        .help-block
+        .form-group
+          = f.text_field 'serial_number', placeholder: 'Serial Number', class: 'form-control', id: 'serial_number'
+          .help-block
 
-      .form-group
-        .btn-group(data-toggle="buttons")
-          %label.btn.btn-default
-            = radio_button_tag 'bike_style', 3
-            RD
-          %label.btn.btn-default
-            = radio_button_tag 'bike_style', 1
-            MTN
-          %label.btn.btn-default
-            = radio_button_tag 'bike_style', 2
-            HYB
-          %label.btn.btn-default
-            = radio_button_tag 'bike_style', 4
-            OTHER
-        = hidden_field_tag nil, nil, id: 'bike_style_id'
-        .help-block
+        .form-group
+          .btn-group(data-toggle="buttons")
+            %label.btn.btn-default
+              = f.radio_button 'bike_style_id', 3
+              RD
+            %label.btn.btn-default
+              = f.radio_button 'bike_style_id', 1
+              MTN
+            %label.btn.btn-default
+              = f.radio_button 'bike_style_id', 2
+              HYB
+            %label.btn.btn-default
+              = f.radio_button 'bike_style_id', 4
+              OTHER
+          = hidden_field_tag nil, nil, id: 'bike_style_id'
+          .help-block
 
-      .form-group
-        = select_tag :bike_wheel_size_id, options_for_select(@wheel_sizes), id: :bike_wheel_size_id, class: 'form-control'
-        .help-block
+        .form-group
+          = f.select 'bike_wheel_size_id', options_for_select(@wheel_sizes), {}, class: 'form-control', id: 'bike_wheel_size_id'
+          .help-block
 
-      .form-group
-        .btn-group(data-toggle="buttons")
-          %label.btn.btn-default
-            = radio_button_tag 'bike_condition', 2
-            Poor
-          %label.btn.btn-default
-            = radio_button_tag 'bike_condition', 3
-            Fair
-          %label.btn.btn-default
-            = radio_button_tag 'bike_condition', 4
-            Good
-          %label.btn.btn-default
-            = radio_button_tag 'bike_condition', 5
-            Excellent
-        = hidden_field_tag nil, nil, id: 'bike_condition_id'
-        .help-block
+        .form-group
+          .btn-group(data-toggle="buttons")
+            %label.btn.btn-default
+              = f.radio_button 'bike_condition_id', 2
+              Poor
+            %label.btn.btn-default
+              = f.radio_button 'bike_condition_id', 3
+              Fair
+            %label.btn.btn-default
+              = f.radio_button 'bike_condition_id', 4
+              Good
+            %label.btn.btn-default
+              = f.radio_button 'bike_condition_id', 5
+              Excellent
+          = hidden_field_tag nil, nil, id: 'bike_condition_id'
+          .help-block
 
-      .form-group
-        .input-group
-          = number_field_tag nil, nil, id: 'seat_tube_height', placeholder: 'Seat Tube', min: 0, max: 100, class: 'form-control'
-          .input-group-addon cm
-        .help-block
+        .form-group
+          .input-group
+            = f.number_field 'seat_tube_height', placeholder: 'Seat Tube', min: 0, max: 100, class: 'form-control', id: 'seat_tube_height'
+            .input-group-addon cm
+          .help-block
 
-      -# Commenting this out until description is added to Bike
-        /.form-group
-          %input{id: "bike_description", placeholder: "Short description", type: "text", class: "input-lg" }
+        .form-group
+          %label Bike photo (optional)
+          = f.file_field 'photo', id: 'photo'
+          .help-block
 
-      .form-group
-        = button_tag 'Add Bike', id: 'add_bike_submit', class: 'btn btn-primary', data: {url: api_create_bike_path}
\ No newline at end of file
+        -# Commenting this out until description is added to Bike
+          /.form-group
+            %input{id: "bike_description", placeholder: "Short description", type: "text", class: "input-lg" }
+
+        .form-group
+          = button_tag 'Add Bike', class: 'btn btn-primary'
\ No newline at end of file
diff --git a/app/views/bikes/show.html.haml b/app/views/bikes/show.html.haml
index a80aa2e..2374aad 100644
--- a/app/views/bikes/show.html.haml
+++ b/app/views/bikes/show.html.haml
@@ -7,34 +7,49 @@
 %h1 #{@bike.shop_id}: #{@bike.bike_brand}
 %h4= @bike.model
 
-%dl.dl-horizontal
-  %dt Type
-  %dd= @bike.bike_style
-
-  %dt Wheel Size
-  %dd= @bike.bike_wheel_size.display_string
-
-  %dt Condition
-  %dd= @bike.bike_condition
-
-  %dt Seat Tube (cm)
-  %dd= @bike.seat_tube_height
-
-  %dt Purpose
-  %dd= @bike.bike_purpose
+.form-horizontal
+  - if @bike.photo?
+    .form-group
+      %label.col-sm-2.control-label Photo
+      .col-sm-10
+        = link_to @bike.photo.url, target: '_blank' do
+          %img{src: @bike.photo.url(:thumb),  class: 'img-thumbnail'}
+
+  .form-group
+    %label.col-sm-2.control-label Type
+    .col-sm-10.form-control-static= @bike.bike_style
+
+  .form-group
+    %label.col-sm-2.control-label Wheel Size
+    .col-sm-10.form-control-static= @bike.bike_wheel_size.display_string
+
+  .form-group
+    %label.col-sm-2.control-label Condition
+    .col-sm-10.form-control-static= @bike.bike_condition
+
+  .form-group
+    %label.col-sm-2.control-label Seat Tube (cm)
+    .col-sm-10.form-control-static= @bike.seat_tube_height
+
+  .form-group
+    %label.col-sm-2.control-label Purpose
+    .col-sm-10.form-control-static= @bike.bike_purpose
 
   - unless @bike.value.nil?
-    %dt Value
-    %dd= @bike.value
+    .form-group
+      %label.col-sm-2.control-label Value
+      .col-sm-10.form-control-static= @bike.value
 
   - unless @bike.color.nil?
-    %dt Color
-    %dd
-      .bike-color(style="background-color: ##{@bike.color}")= @bike.color
+    .form-group
+      %label.col-sm-2.control-label Color
+      .col-sm-10.form-control-static
+        .bike-color(style="background-color: ##{@bike.color}")= @bike.color
 
   - if @task_list
     - tasks = @task_list.tasks.to_a
-    %dt Task list
-    %dd
-      = link_to edit_task_list_path(@task_list.id) do
-        #{tasks.select(&:done).count}/#{tasks.count}
\ No newline at end of file
+    .form-group
+      %label.col-sm-2.control-label Task list
+      .col-sm-10.form-control-static
+        = link_to edit_task_list_path(@task_list.id) do
+          #{tasks.select(&:done).count}/#{tasks.count}
\ No newline at end of file
diff --git a/db/migrate/20170118112258_add_attachment_photo_to_bikes.rb b/db/migrate/20170118112258_add_attachment_photo_to_bikes.rb
new file mode 100644
index 0000000..e1c1259
--- /dev/null
+++ b/db/migrate/20170118112258_add_attachment_photo_to_bikes.rb
@@ -0,0 +1,11 @@
+class AddAttachmentPhotoToBikes < ActiveRecord::Migration
+  def self.up
+    change_table :bikes do |t|
+      t.attachment :photo
+    end
+  end
+
+  def self.down
+    remove_attachment :bikes, :photo
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 4cd03fb..c001ecc 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20170118110330) do
+ActiveRecord::Schema.define(:version => 20170118112258) do
 
   create_table "bike_actions", :force => true do |t|
     t.string   "action",     :limit => 128, :null => false
@@ -73,6 +73,10 @@ ActiveRecord::Schema.define(:version => 20170118110330) do
     t.string   "model"
     t.integer  "shop_id"
     t.integer  "bike_wheel_size_id"
+    t.string   "photo_file_name"
+    t.string   "photo_content_type"
+    t.integer  "photo_file_size"
+    t.datetime "photo_updated_at"
   end
 
   create_table "credit_conversions", :force => true do |t|
diff --git a/vendor/assets/javascripts/jquery.form.js b/vendor/assets/javascripts/jquery.form.js
new file mode 100644
index 0000000..591ad6f
--- /dev/null
+++ b/vendor/assets/javascripts/jquery.form.js
@@ -0,0 +1,1277 @@
+/*!
+ * jQuery Form Plugin
+ * version: 3.51.0-2014.06.20
+ * Requires jQuery v1.5 or later
+ * Copyright (c) 2014 M. Alsup
+ * Examples and documentation at: http://malsup.com/jquery/form/
+ * Project repository: https://github.com/malsup/form
+ * Dual licensed under the MIT and GPL licenses.
+ * https://github.com/malsup/form#copyright-and-license
+ */
+/*global ActiveXObject */
+
+// AMD support
+(function (factory) {
+    "use strict";
+    if (typeof define === 'function' && define.amd) {
+        // using AMD; register as anon module
+        define(['jquery'], factory);
+    } else {
+        // no AMD; invoke directly
+        factory( (typeof(jQuery) != 'undefined') ? jQuery : window.Zepto );
+    }
+}
+
+(function($) {
+"use strict";
+
+/*
+    Usage Note:
+    -----------
+    Do not use both ajaxSubmit and ajaxForm on the same form.  These
+    functions are mutually exclusive.  Use ajaxSubmit if you want
+    to bind your own submit handler to the form.  For example,
+
+    $(document).ready(function() {
+        $('#myForm').on('submit', function(e) {
+            e.preventDefault(); // <-- important
+            $(this).ajaxSubmit({
+                target: '#output'
+            });
+        });
+    });
+
+    Use ajaxForm when you want the plugin to manage all the event binding
+    for you.  For example,
+
+    $(document).ready(function() {
+        $('#myForm').ajaxForm({
+            target: '#output'
+        });
+    });
+
+    You can also use ajaxForm with delegation (requires jQuery v1.7+), so the
+    form does not have to exist when you invoke ajaxForm:
+
+    $('#myForm').ajaxForm({
+        delegation: true,
+        target: '#output'
+    });
+
+    When using ajaxForm, the ajaxSubmit function will be invoked for you
+    at the appropriate time.
+*/
+
+/**
+ * Feature detection
+ */
+var feature = {};
+feature.fileapi = $("<input type='file'/>").get(0).files !== undefined;
+feature.formdata = window.FormData !== undefined;
+
+var hasProp = !!$.fn.prop;
+
+// attr2 uses prop when it can but checks the return type for
+// an expected string.  this accounts for the case where a form 
+// contains inputs with names like "action" or "method"; in those
+// cases "prop" returns the element
+$.fn.attr2 = function() {
+    if ( ! hasProp ) {
+        return this.attr.apply(this, arguments);
+    }
+    var val = this.prop.apply(this, arguments);
+    if ( ( val && val.jquery ) || typeof val === 'string' ) {
+        return val;
+    }
+    return this.attr.apply(this, arguments);
+};
+
+/**
+ * ajaxSubmit() provides a mechanism for immediately submitting
+ * an HTML form using AJAX.
+ */
+$.fn.ajaxSubmit = function(options) {
+    /*jshint scripturl:true */
+
+    // fast fail if nothing selected (http://dev.jquery.com/ticket/2752)
+    if (!this.length) {
+        log('ajaxSubmit: skipping submit process - no element selected');
+        return this;
+    }
+
+    var method, action, url, $form = this;
+
+    if (typeof options == 'function') {
+        options = { success: options };
+    }
+    else if ( options === undefined ) {
+        options = {};
+    }
+
+    method = options.type || this.attr2('method');
+    action = options.url  || this.attr2('action');
+
+    url = (typeof action === 'string') ? $.trim(action) : '';
+    url = url || window.location.href || '';
+    if (url) {
+        // clean url (don't include hash vaue)
+        url = (url.match(/^([^#]+)/)||[])[1];
+    }
+
+    options = $.extend(true, {
+        url:  url,
+        success: $.ajaxSettings.success,
+        type: method || $.ajaxSettings.type,
+        iframeSrc: /^https/i.test(window.location.href || '') ? 'javascript:false' : 'about:blank'
+    }, options);
+
+    // hook for manipulating the form data before it is extracted;
+    // convenient for use with rich editors like tinyMCE or FCKEditor
+    var veto = {};
+    this.trigger('form-pre-serialize', [this, options, veto]);
+    if (veto.veto) {
+        log('ajaxSubmit: submit vetoed via form-pre-serialize trigger');
+        return this;
+    }
+
+    // provide opportunity to alter form data before it is serialized
+    if (options.beforeSerialize && options.beforeSerialize(this, options) === false) {
+        log('ajaxSubmit: submit aborted via beforeSerialize callback');
+        return this;
+    }
+
+    var traditional = options.traditional;
+    if ( traditional === undefined ) {
+        traditional = $.ajaxSettings.traditional;
+    }
+
+    var elements = [];
+    var qx, a = this.formToArray(options.semantic, elements);
+    if (options.data) {
+        options.extraData = options.data;
+        qx = $.param(options.data, traditional);
+    }
+
+    // give pre-submit callback an opportunity to abort the submit
+    if (options.beforeSubmit && options.beforeSubmit(a, this, options) === false) {
+        log('ajaxSubmit: submit aborted via beforeSubmit callback');
+        return this;
+    }
+
+    // fire vetoable 'validate' event
+    this.trigger('form-submit-validate', [a, this, options, veto]);
+    if (veto.veto) {
+        log('ajaxSubmit: submit vetoed via form-submit-validate trigger');
+        return this;
+    }
+
+    var q = $.param(a, traditional);
+    if (qx) {
+        q = ( q ? (q + '&' + qx) : qx );
+    }
+    if (options.type.toUpperCase() == 'GET') {
+        options.url += (options.url.indexOf('?') >= 0 ? '&' : '?') + q;
+        options.data = null;  // data is null for 'get'
+    }
+    else {
+        options.data = q; // data is the query string for 'post'
+    }
+
+    var callbacks = [];
+    if (options.resetForm) {
+        callbacks.push(function() { $form.resetForm(); });
+    }
+    if (options.clearForm) {
+        callbacks.push(function() { $form.clearForm(options.includeHidden); });
+    }
+
+    // perform a load on the target only if dataType is not provided
+    if (!options.dataType && options.target) {
+        var oldSuccess = options.success || function(){};
+        callbacks.push(function(data) {
+            var fn = options.replaceTarget ? 'replaceWith' : 'html';
+            $(options.target)[fn](data).each(oldSuccess, arguments);
+        });
+    }
+    else if (options.success) {
+        callbacks.push(options.success);
+    }
+
+    options.success = function(data, status, xhr) { // jQuery 1.4+ passes xhr as 3rd arg
+        var context = options.context || this ;    // jQuery 1.4+ supports scope context
+        for (var i=0, max=callbacks.length; i < max; i++) {
+            callbacks[i].apply(context, [data, status, xhr || $form, $form]);
+        }
+    };
+
+    if (options.error) {
+        var oldError = options.error;
+        options.error = function(xhr, status, error) {
+            var context = options.context || this;
+            oldError.apply(context, [xhr, status, error, $form]);
+        };
+    }
+
+     if (options.complete) {
+        var oldComplete = options.complete;
+        options.complete = function(xhr, status) {
+            var context = options.context || this;
+            oldComplete.apply(context, [xhr, status, $form]);
+        };
+    }
+
+    // are there files to upload?
+
+    // [value] (issue #113), also see comment:
+    // https://github.com/malsup/form/commit/588306aedba1de01388032d5f42a60159eea9228#commitcomment-2180219
+    var fileInputs = $('input[type=file]:enabled', this).filter(function() { return $(this).val() !== ''; });
+
+    var hasFileInputs = fileInputs.length > 0;
+    var mp = 'multipart/form-data';
+    var multipart = ($form.attr('enctype') == mp || $form.attr('encoding') == mp);
+
+    var fileAPI = feature.fileapi && feature.formdata;
+    log("fileAPI :" + fileAPI);
+    var shouldUseFrame = (hasFileInputs || multipart) && !fileAPI;
+
+    var jqxhr;
+
+    // options.iframe allows user to force iframe mode
+    // 06-NOV-09: now defaulting to iframe mode if file input is detected
+    if (options.iframe !== false && (options.iframe || shouldUseFrame)) {
+        // hack to fix Safari hang (thanks to Tim Molendijk for this)
+        // see:  http://groups.google.com/group/jquery-dev/browse_thread/thread/36395b7ab510dd5d
+        if (options.closeKeepAlive) {
+            $.get(options.closeKeepAlive, function() {
+                jqxhr = fileUploadIframe(a);
+            });
+        }
+        else {
+            jqxhr = fileUploadIframe(a);
+        }
+    }
+    else if ((hasFileInputs || multipart) && fileAPI) {
+        jqxhr = fileUploadXhr(a);
+    }
+    else {
+        jqxhr = $.ajax(options);
+    }
+
+    $form.removeData('jqxhr').data('jqxhr', jqxhr);
+
+    // clear element array
+    for (var k=0; k < elements.length; k++) {
+        elements[k] = null;
+    }
+
+    // fire 'notify' event
+    this.trigger('form-submit-notify', [this, options]);
+    return this;
+
+    // utility fn for deep serialization
+    function deepSerialize(extraData){
+        var serialized = $.param(extraData, options.traditional).split('&');
+        var len = serialized.length;
+        var result = [];
+        var i, part;
+        for (i=0; i < len; i++) {
+            // #252; undo param space replacement
+            serialized[i] = serialized[i].replace(/\+/g,' ');
+            part = serialized[i].split('=');
+            // #278; use array instead of object storage, favoring array serializations
+            result.push([decodeURIComponent(part[0]), decodeURIComponent(part[1])]);
+        }
+        return result;
+    }
+
+     // XMLHttpRequest Level 2 file uploads (big hat tip to francois2metz)
+    function fileUploadXhr(a) {
+        var formdata = new FormData();
+
+        for (var i=0; i < a.length; i++) {
+            formdata.append(a[i].name, a[i].value);
+        }
+
+        if (options.extraData) {
+            var serializedData = deepSerialize(options.extraData);
+            for (i=0; i < serializedData.length; i++) {
+                if (serializedData[i]) {
+                    formdata.append(serializedData[i][0], serializedData[i][1]);
+                }
+            }
+        }
+
+        options.data = null;
+
+        var s = $.extend(true, {}, $.ajaxSettings, options, {
+            contentType: false,
+            processData: false,
+            cache: false,
+            type: method || 'POST'
+        });
+
+        if (options.uploadProgress) {
+            // workaround because jqXHR does not expose upload property
+            s.xhr = function() {
+                var xhr = $.ajaxSettings.xhr();
+                if (xhr.upload) {
+                    xhr.upload.addEventListener('progress', function(event) {
+                        var percent = 0;
+                        var position = event.loaded || event.position; /*event.position is deprecated*/
+                        var total = event.total;
+                        if (event.lengthComputable) {
+                            percent = Math.ceil(position / total * 100);
+                        }
+                        options.uploadProgress(event, position, total, percent);
+                    }, false);
+                }
+                return xhr;
+            };
+        }
+
+        s.data = null;
+        var beforeSend = s.beforeSend;
+        s.beforeSend = function(xhr, o) {
+            //Send FormData() provided by user
+            if (options.formData) {
+                o.data = options.formData;
+            }
+            else {
+                o.data = formdata;
+            }
+            if(beforeSend) {
+                beforeSend.call(this, xhr, o);
+            }
+        };
+        return $.ajax(s);
+    }
+
+    // private function for handling file uploads (hat tip to YAHOO!)
+    function fileUploadIframe(a) {
+        var form = $form[0], el, i, s, g, id, $io, io, xhr, sub, n, timedOut, timeoutHandle;
+        var deferred = $.Deferred();
+
+        // #341
+        deferred.abort = function(status) {
+            xhr.abort(status);
+        };
+
+        if (a) {
+            // ensure that every serialized input is still enabled
+            for (i=0; i < elements.length; i++) {
+                el = $(elements[i]);
+                if ( hasProp ) {
+                    el.prop('disabled', false);
+                }
+                else {
+                    el.removeAttr('disabled');
+                }
+            }
+        }
+
+        s = $.extend(true, {}, $.ajaxSettings, options);
+        s.context = s.context || s;
+        id = 'jqFormIO' + (new Date().getTime());
+        if (s.iframeTarget) {
+            $io = $(s.iframeTarget);
+            n = $io.attr2('name');
+            if (!n) {
+                $io.attr2('name', id);
+            }
+            else {
+                id = n;
+            }
+        }
+        else {
+            $io = $('<iframe name="' + id + '" src="'+ s.iframeSrc +'" />');
+            $io.css({ position: 'absolute', top: '-1000px', left: '-1000px' });
+        }
+        io = $io[0];
+
+
+        xhr = { // mock object
+            aborted: 0,
+            responseText: null,
+            responseXML: null,
+            status: 0,
+            statusText: 'n/a',
+            getAllResponseHeaders: function() {},
+            getResponseHeader: function() {},
+            setRequestHeader: function() {},
+            abort: function(status) {
+                var e = (status === 'timeout' ? 'timeout' : 'aborted');
+                log('aborting upload... ' + e);
+                this.aborted = 1;
+
+                try { // #214, #257
+                    if (io.contentWindow.document.execCommand) {
+                        io.contentWindow.document.execCommand('Stop');
+                    }
+                }
+                catch(ignore) {}
+
+                $io.attr('src', s.iframeSrc); // abort op in progress
+                xhr.error = e;
+                if (s.error) {
+                    s.error.call(s.context, xhr, e, status);
+                }
+                if (g) {
+                    $.event.trigger("ajaxError", [xhr, s, e]);
+                }
+                if (s.complete) {
+                    s.complete.call(s.context, xhr, e);
+                }
+            }
+        };
+
+        g = s.global;
+        // trigger ajax global events so that activity/block indicators work like normal
+        if (g && 0 === $.active++) {
+            $.event.trigger("ajaxStart");
+        }
+        if (g) {
+            $.event.trigger("ajaxSend", [xhr, s]);
+        }
+
+        if (s.beforeSend && s.beforeSend.call(s.context, xhr, s) === false) {
+            if (s.global) {
+                $.active--;
+            }
+            deferred.reject();
+            return deferred;
+        }
+        if (xhr.aborted) {
+            deferred.reject();
+            return deferred;
+        }
+
+        // add submitting element to data if we know it
+        sub = form.clk;
+        if (sub) {
+            n = sub.name;
+            if (n && !sub.disabled) {
+                s.extraData = s.extraData || {};
+                s.extraData[n] = sub.value;
+                if (sub.type == "image") {
+                    s.extraData[n+'.x'] = form.clk_x;
+                    s.extraData[n+'.y'] = form.clk_y;
+                }
+            }
+        }
+
+        var CLIENT_TIMEOUT_ABORT = 1;
+        var SERVER_ABORT = 2;
+                
+        function getDoc(frame) {
+            /* it looks like contentWindow or contentDocument do not
+             * carry the protocol property in ie8, when running under ssl
+             * frame.document is the only valid response document, since
+             * the protocol is know but not on the other two objects. strange?
+             * "Same origin policy" http://en.wikipedia.org/wiki/Same_origin_policy
+             */
+            
+            var doc = null;
+            
+            // IE8 cascading access check
+            try {
+                if (frame.contentWindow) {
+                    doc = frame.contentWindow.document;
+                }
+            } catch(err) {
+                // IE8 access denied under ssl & missing protocol
+                log('cannot get iframe.contentWindow document: ' + err);
+            }
+
+            if (doc) { // successful getting content
+                return doc;
+            }
+
+            try { // simply checking may throw in ie8 under ssl or mismatched protocol
+                doc = frame.contentDocument ? frame.contentDocument : frame.document;
+            } catch(err) {
+                // last attempt
+                log('cannot get iframe.contentDocument: ' + err);
+                doc = frame.document;
+            }
+            return doc;
+        }
+
+        // Rails CSRF hack (thanks to Yvan Barthelemy)
+        var csrf_token = $('meta[name=csrf-token]').attr('content');
+        var csrf_param = $('meta[name=csrf-param]').attr('content');
+        if (csrf_param && csrf_token) {
+            s.extraData = s.extraData || {};
+            s.extraData[csrf_param] = csrf_token;
+        }
+
+        // take a breath so that pending repaints get some cpu time before the upload starts
+        function doSubmit() {
+            // make sure form attrs are set
+            var t = $form.attr2('target'), 
+                a = $form.attr2('action'), 
+                mp = 'multipart/form-data',
+                et = $form.attr('enctype') || $form.attr('encoding') || mp;
+
+            // update form attrs in IE friendly way
+            form.setAttribute('target',id);
+            if (!method || /post/i.test(method) ) {
+                form.setAttribute('method', 'POST');
+            }
+            if (a != s.url) {
+                form.setAttribute('action', s.url);
+            }
+
+            // ie borks in some cases when setting encoding
+            if (! s.skipEncodingOverride && (!method || /post/i.test(method))) {
+                $form.attr({
+                    encoding: 'multipart/form-data',
+                    enctype:  'multipart/form-data'
+                });
+            }
+
+            // support timout
+            if (s.timeout) {
+                timeoutHandle = setTimeout(function() { timedOut = true; cb(CLIENT_TIMEOUT_ABORT); }, s.timeout);
+            }
+
+            // look for server aborts
+            function checkState() {
+                try {
+                    var state = getDoc(io).readyState;
+                    log('state = ' + state);
+                    if (state && state.toLowerCase() == 'uninitialized') {
+                        setTimeout(checkState,50);
+                    }
+                }
+                catch(e) {
+                    log('Server abort: ' , e, ' (', e.name, ')');
+                    cb(SERVER_ABORT);
+                    if (timeoutHandle) {
+                        clearTimeout(timeoutHandle);
+                    }
+                    timeoutHandle = undefined;
+                }
+            }
+
+            // add "extra" data to form if provided in options
+            var extraInputs = [];
+            try {
+                if (s.extraData) {
+                    for (var n in s.extraData) {
+                        if (s.extraData.hasOwnProperty(n)) {
+                           // if using the $.param format that allows for multiple values with the same name
+                           if($.isPlainObject(s.extraData[n]) && s.extraData[n].hasOwnProperty('name') && s.extraData[n].hasOwnProperty('value')) {
+                               extraInputs.push(
+                               $('<input type="hidden" name="'+s.extraData[n].name+'">').val(s.extraData[n].value)
+                                   .appendTo(form)[0]);
+                           } else {
+                               extraInputs.push(
+                               $('<input type="hidden" name="'+n+'">').val(s.extraData[n])
+                                   .appendTo(form)[0]);
+                           }
+                        }
+                    }
+                }
+
+                if (!s.iframeTarget) {
+                    // add iframe to doc and submit the form
+                    $io.appendTo('body');
+                }
+                if (io.attachEvent) {
+                    io.attachEvent('onload', cb);
+                }
+                else {
+                    io.addEventListener('load', cb, false);
+                }
+                setTimeout(checkState,15);
+
+                try {
+                    form.submit();
+                } catch(err) {
+                    // just in case form has element with name/id of 'submit'
+                    var submitFn = document.createElement('form').submit;
+                    submitFn.apply(form);
+                }
+            }
+            finally {
+                // reset attrs and remove "extra" input elements
+                form.setAttribute('action',a);
+                form.setAttribute('enctype', et); // #380
+                if(t) {
+                    form.setAttribute('target', t);
+                } else {
+                    $form.removeAttr('target');
+                }
+                $(extraInputs).remove();
+            }
+        }
+
+        if (s.forceSync) {
+            doSubmit();
+        }
+        else {
+            setTimeout(doSubmit, 10); // this lets dom updates render
+        }
+
+        var data, doc, domCheckCount = 50, callbackProcessed;
+
+        function cb(e) {
+            if (xhr.aborted || callbackProcessed) {
+                return;
+            }
+            
+            doc = getDoc(io);
+            if(!doc) {
+                log('cannot access response document');
+                e = SERVER_ABORT;
+            }
+            if (e === CLIENT_TIMEOUT_ABORT && xhr) {
+                xhr.abort('timeout');
+                deferred.reject(xhr, 'timeout');
+                return;
+            }
+            else if (e == SERVER_ABORT && xhr) {
+                xhr.abort('server abort');
+                deferred.reject(xhr, 'error', 'server abort');
+                return;
+            }
+
+            if (!doc || doc.location.href == s.iframeSrc) {
+                // response not received yet
+                if (!timedOut) {
+                    return;
+                }
+            }
+            if (io.detachEvent) {
+                io.detachEvent('onload', cb);
+            }
+            else {
+                io.removeEventListener('load', cb, false);
+            }
+
+            var status = 'success', errMsg;
+            try {
+                if (timedOut) {
+                    throw 'timeout';
+                }
+
+                var isXml = s.dataType == 'xml' || doc.XMLDocument || $.isXMLDoc(doc);
+                log('isXml='+isXml);
+                if (!isXml && window.opera && (doc.body === null || !doc.body.innerHTML)) {
+                    if (--domCheckCount) {
+                        // in some browsers (Opera) the iframe DOM is not always traversable when
+                        // the onload callback fires, so we loop a bit to accommodate
+                        log('requeing onLoad callback, DOM not available');
+                        setTimeout(cb, 250);
+                        return;
+                    }
+                    // let this fall through because server response could be an empty document
+                    //log('Could not access iframe DOM after mutiple tries.');
+                    //throw 'DOMException: not available';
+                }
+
+                //log('response detected');
+                var docRoot = doc.body ? doc.body : doc.documentElement;
+                xhr.responseText = docRoot ? docRoot.innerHTML : null;
+                xhr.responseXML = doc.XMLDocument ? doc.XMLDocument : doc;
+                if (isXml) {
+                    s.dataType = 'xml';
+                }
+                xhr.getResponseHeader = function(header){
+                    var headers = {'content-type': s.dataType};
+                    return headers[header.toLowerCase()];
+                };
+                // support for XHR 'status' & 'statusText' emulation :
+                if (docRoot) {
+                    xhr.status = Number( docRoot.getAttribute('status') ) || xhr.status;
+                    xhr.statusText = docRoot.getAttribute('statusText') || xhr.statusText;
+                }
+
+                var dt = (s.dataType || '').toLowerCase();
+                var scr = /(json|script|text)/.test(dt);
+                if (scr || s.textarea) {
+                    // see if user embedded response in textarea
+                    var ta = doc.getElementsByTagName('textarea')[0];
+                    if (ta) {
+                        xhr.responseText = ta.value;
+                        // support for XHR 'status' & 'statusText' emulation :
+                        xhr.status = Number( ta.getAttribute('status') ) || xhr.status;
+                        xhr.statusText = ta.getAttribute('statusText') || xhr.statusText;
+                    }
+                    else if (scr) {
+                        // account for browsers injecting pre around json response
+                        var pre = doc.getElementsByTagName('pre')[0];
+                        var b = doc.getElementsByTagName('body')[0];
+                        if (pre) {
+                            xhr.responseText = pre.textContent ? pre.textContent : pre.innerText;
+                        }
+                        else if (b) {
+                            xhr.responseText = b.textContent ? b.textContent : b.innerText;
+                        }
+                    }
+                }
+                else if (dt == 'xml' && !xhr.responseXML && xhr.responseText) {
+                    xhr.responseXML = toXml(xhr.responseText);
+                }
+
+                try {
+                    data = httpData(xhr, dt, s);
+                }
+                catch (err) {
+                    status = 'parsererror';
+                    xhr.error = errMsg = (err || status);
+                }
+            }
+            catch (err) {
+                log('error caught: ',err);
+                status = 'error';
+                xhr.error = errMsg = (err || status);
+            }
+
+            if (xhr.aborted) {
+                log('upload aborted');
+                status = null;
+            }
+
+            if (xhr.status) { // we've set xhr.status
+                status = (xhr.status >= 200 && xhr.status < 300 || xhr.status === 304) ? 'success' : 'error';
+            }
+
+            // ordering of these callbacks/triggers is odd, but that's how $.ajax does it
+            if (status === 'success') {
+                if (s.success) {
+                    s.success.call(s.context, data, 'success', xhr);
+                }
+                deferred.resolve(xhr.responseText, 'success', xhr);
+                if (g) {
+                    $.event.trigger("ajaxSuccess", [xhr, s]);
+                }
+            }
+            else if (status) {
+                if (errMsg === undefined) {
+                    errMsg = xhr.statusText;
+                }
+                if (s.error) {
+                    s.error.call(s.context, xhr, status, errMsg);
+                }
+                deferred.reject(xhr, 'error', errMsg);
+                if (g) {
+                    $.event.trigger("ajaxError", [xhr, s, errMsg]);
+                }
+            }
+
+            if (g) {
+                $.event.trigger("ajaxComplete", [xhr, s]);
+            }
+
+            if (g && ! --$.active) {
+                $.event.trigger("ajaxStop");
+            }
+
+            if (s.complete) {
+                s.complete.call(s.context, xhr, status);
+            }
+
+            callbackProcessed = true;
+            if (s.timeout) {
+                clearTimeout(timeoutHandle);
+            }
+
+            // clean up
+            setTimeout(function() {
+                if (!s.iframeTarget) {
+                    $io.remove();
+                }
+                else { //adding else to clean up existing iframe response.
+                    $io.attr('src', s.iframeSrc);
+                }
+                xhr.responseXML = null;
+            }, 100);
+        }
+
+        var toXml = $.parseXML || function(s, doc) { // use parseXML if available (jQuery 1.5+)
+            if (window.ActiveXObject) {
+                doc = new ActiveXObject('Microsoft.XMLDOM');
+                doc.async = 'false';
+                doc.loadXML(s);
+            }
+            else {
+                doc = (new DOMParser()).parseFromString(s, 'text/xml');
+            }
+            return (doc && doc.documentElement && doc.documentElement.nodeName != 'parsererror') ? doc : null;
+        };
+        var parseJSON = $.parseJSON || function(s) {
+            /*jslint evil:true */
+            return window['eval']('(' + s + ')');
+        };
+
+        var httpData = function( xhr, type, s ) { // mostly lifted from jq1.4.4
+
+            var ct = xhr.getResponseHeader('content-type') || '',
+                xml = type === 'xml' || !type && ct.indexOf('xml') >= 0,
+                data = xml ? xhr.responseXML : xhr.responseText;
+
+            if (xml && data.documentElement.nodeName === 'parsererror') {
+                if ($.error) {
+                    $.error('parsererror');
+                }
+            }
+            if (s && s.dataFilter) {
+                data = s.dataFilter(data, type);
+            }
+            if (typeof data === 'string') {
+                if (type === 'json' || !type && ct.indexOf('json') >= 0) {
+                    data = parseJSON(data);
+                } else if (type === "script" || !type && ct.indexOf("javascript") >= 0) {
+                    $.globalEval(data);
+                }
+            }
+            return data;
+        };
+
+        return deferred;
+    }
+};
+
+/**
+ * ajaxForm() provides a mechanism for fully automating form submission.
+ *
+ * The advantages of using this method instead of ajaxSubmit() are:
+ *
+ * 1: This method will include coordinates for <input type="image" /> elements (if the element
+ *    is used to submit the form).
+ * 2. This method will include the submit element's name/value data (for the element that was
+ *    used to submit the form).
+ * 3. This method binds the submit() method to the form for you.
+ *
+ * The options argument for ajaxForm works exactly as it does for ajaxSubmit.  ajaxForm merely
+ * passes the options argument along after properly binding events for submit elements and
+ * the form itself.
+ */
+$.fn.ajaxForm = function(options) {
+    options = options || {};
+    options.delegation = options.delegation && $.isFunction($.fn.on);
+
+    // in jQuery 1.3+ we can fix mistakes with the ready state
+    if (!options.delegation && this.length === 0) {
+        var o = { s: this.selector, c: this.context };
+        if (!$.isReady && o.s) {
+            log('DOM not ready, queuing ajaxForm');
+            $(function() {
+                $(o.s,o.c).ajaxForm(options);
+            });
+            return this;
+        }
+        // is your DOM ready?  http://docs.jquery.com/Tutorials:Introducing_$(document).ready()
+        log('terminating; zero elements found by selector' + ($.isReady ? '' : ' (DOM not ready)'));
+        return this;
+    }
+
+    if ( options.delegation ) {
+        $(document)
+            .off('submit.form-plugin', this.selector, doAjaxSubmit)
+            .off('click.form-plugin', this.selector, captureSubmittingElement)
+            .on('submit.form-plugin', this.selector, options, doAjaxSubmit)
+            .on('click.form-plugin', this.selector, options, captureSubmittingElement);
+        return this;
+    }
+
+    return this.ajaxFormUnbind()
+        .bind('submit.form-plugin', options, doAjaxSubmit)
+        .bind('click.form-plugin', options, captureSubmittingElement);
+};
+
+// private event handlers
+function doAjaxSubmit(e) {
+    /*jshint validthis:true */
+    var options = e.data;
+    if (!e.isDefaultPrevented()) { // if event has been canceled, don't proceed
+        e.preventDefault();
+        $(e.target).ajaxSubmit(options); // #365
+    }
+}
+
+function captureSubmittingElement(e) {
+    /*jshint validthis:true */
+    var target = e.target;
+    var $el = $(target);
+    if (!($el.is("[type=submit],[type=image]"))) {
+        // is this a child element of the submit el?  (ex: a span within a button)
+        var t = $el.closest('[type=submit]');
+        if (t.length === 0) {
+            return;
+        }
+        target = t[0];
+    }
+    var form = this;
+    form.clk = target;
+    if (target.type == 'image') {
+        if (e.offsetX !== undefined) {
+            form.clk_x = e.offsetX;
+            form.clk_y = e.offsetY;
+        } else if (typeof $.fn.offset == 'function') {
+            var offset = $el.offset();
+            form.clk_x = e.pageX - offset.left;
+            form.clk_y = e.pageY - offset.top;
+        } else {
+            form.clk_x = e.pageX - target.offsetLeft;
+            form.clk_y = e.pageY - target.offsetTop;
+        }
+    }
+    // clear form vars
+    setTimeout(function() { form.clk = form.clk_x = form.clk_y = null; }, 100);
+}
+
+
+// ajaxFormUnbind unbinds the event handlers that were bound by ajaxForm
+$.fn.ajaxFormUnbind = function() {
+    return this.unbind('submit.form-plugin click.form-plugin');
+};
+
+/**
+ * formToArray() gathers form element data into an array of objects that can
+ * be passed to any of the following ajax functions: $.get, $.post, or load.
+ * Each object in the array has both a 'name' and 'value' property.  An example of
+ * an array for a simple login form might be:
+ *
+ * [ { name: 'username', value: 'jresig' }, { name: 'password', value: 'secret' } ]
+ *
+ * It is this array that is passed to pre-submit callback functions provided to the
+ * ajaxSubmit() and ajaxForm() methods.
+ */
+$.fn.formToArray = function(semantic, elements) {
+    var a = [];
+    if (this.length === 0) {
+        return a;
+    }
+
+    var form = this[0];
+    var formId = this.attr('id');
+    var els = semantic ? form.getElementsByTagName('*') : form.elements;
+    var els2;
+
+    if (els && !/MSIE [678]/.test(navigator.userAgent)) { // #390
+        els = $(els).get();  // convert to standard array
+    }
+
+    // #386; account for inputs outside the form which use the 'form' attribute
+    if ( formId ) {
+        els2 = $(':input[form="' + formId + '"]').get(); // hat tip @thet
+        if ( els2.length ) {
+            els = (els || []).concat(els2);
+        }
+    }
+
+    if (!els || !els.length) {
+        return a;
+    }
+
+    var i,j,n,v,el,max,jmax;
+    for(i=0, max=els.length; i < max; i++) {
+        el = els[i];
+        n = el.name;
+        if (!n || el.disabled) {
+            continue;
+        }
+
+        if (semantic && form.clk && el.type == "image") {
+            // handle image inputs on the fly when semantic == true
+            if(form.clk == el) {
+                a.push({name: n, value: $(el).val(), type: el.type });
+                a.push({name: n+'.x', value: form.clk_x}, {name: n+'.y', value: form.clk_y});
+            }
+            continue;
+        }
+
+        v = $.fieldValue(el, true);
+        if (v && v.constructor == Array) {
+            if (elements) {
+                elements.push(el);
+            }
+            for(j=0, jmax=v.length; j < jmax; j++) {
+                a.push({name: n, value: v[j]});
+            }
+        }
+        else if (feature.fileapi && el.type == 'file') {
+            if (elements) {
+                elements.push(el);
+            }
+            var files = el.files;
+            if (files.length) {
+                for (j=0; j < files.length; j++) {
+                    a.push({name: n, value: files[j], type: el.type});
+                }
+            }
+            else {
+                // #180
+                a.push({ name: n, value: '', type: el.type });
+            }
+        }
+        else if (v !== null && typeof v != 'undefined') {
+            if (elements) {
+                elements.push(el);
+            }
+            a.push({name: n, value: v, type: el.type, required: el.required});
+        }
+    }
+
+    if (!semantic && form.clk) {
+        // input type=='image' are not found in elements array! handle it here
+        var $input = $(form.clk), input = $input[0];
+        n = input.name;
+        if (n && !input.disabled && input.type == 'image') {
+            a.push({name: n, value: $input.val()});
+            a.push({name: n+'.x', value: form.clk_x}, {name: n+'.y', value: form.clk_y});
+        }
+    }
+    return a;
+};
+
+/**
+ * Serializes form data into a 'submittable' string. This method will return a string
+ * in the format: name1=value1&amp;name2=value2
+ */
+$.fn.formSerialize = function(semantic) {
+    //hand off to jQuery.param for proper encoding
+    return $.param(this.formToArray(semantic));
+};
+
+/**
+ * Serializes all field elements in the jQuery object into a query string.
+ * This method will return a string in the format: name1=value1&amp;name2=value2
+ */
+$.fn.fieldSerialize = function(successful) {
+    var a = [];
+    this.each(function() {
+        var n = this.name;
+        if (!n) {
+            return;
+        }
+        var v = $.fieldValue(this, successful);
+        if (v && v.constructor == Array) {
+            for (var i=0,max=v.length; i < max; i++) {
+                a.push({name: n, value: v[i]});
+            }
+        }
+        else if (v !== null && typeof v != 'undefined') {
+            a.push({name: this.name, value: v});
+        }
+    });
+    //hand off to jQuery.param for proper encoding
+    return $.param(a);
+};
+
+/**
+ * Returns the value(s) of the element in the matched set.  For example, consider the following form:
+ *
+ *  <form><fieldset>
+ *      <input name="A" type="text" />
+ *      <input name="A" type="text" />
+ *      <input name="B" type="checkbox" value="B1" />
+ *      <input name="B" type="checkbox" value="B2"/>
+ *      <input name="C" type="radio" value="C1" />
+ *      <input name="C" type="radio" value="C2" />
+ *  </fieldset></form>
+ *
+ *  var v = $('input[type=text]').fieldValue();
+ *  // if no values are entered into the text inputs
+ *  v == ['','']
+ *  // if values entered into the text inputs are 'foo' and 'bar'
+ *  v == ['foo','bar']
+ *
+ *  var v = $('input[type=checkbox]').fieldValue();
+ *  // if neither checkbox is checked
+ *  v === undefined
+ *  // if both checkboxes are checked
+ *  v == ['B1', 'B2']
+ *
+ *  var v = $('input[type=radio]').fieldValue();
+ *  // if neither radio is checked
+ *  v === undefined
+ *  // if first radio is checked
+ *  v == ['C1']
+ *
+ * The successful argument controls whether or not the field element must be 'successful'
+ * (per http://www.w3.org/TR/html4/interact/forms.html#successful-controls).
+ * The default value of the successful argument is true.  If this value is false the value(s)
+ * for each element is returned.
+ *
+ * Note: This method *always* returns an array.  If no valid value can be determined the
+ *    array will be empty, otherwise it will contain one or more values.
+ */
+$.fn.fieldValue = function(successful) {
+    for (var val=[], i=0, max=this.length; i < max; i++) {
+        var el = this[i];
+        var v = $.fieldValue(el, successful);
+        if (v === null || typeof v == 'undefined' || (v.constructor == Array && !v.length)) {
+            continue;
+        }
+        if (v.constructor == Array) {
+            $.merge(val, v);
+        }
+        else {
+            val.push(v);
+        }
+    }
+    return val;
+};
+
+/**
+ * Returns the value of the field element.
+ */
+$.fieldValue = function(el, successful) {
+    var n = el.name, t = el.type, tag = el.tagName.toLowerCase();
+    if (successful === undefined) {
+        successful = true;
+    }
+
+    if (successful && (!n || el.disabled || t == 'reset' || t == 'button' ||
+        (t == 'checkbox' || t == 'radio') && !el.checked ||
+        (t == 'submit' || t == 'image') && el.form && el.form.clk != el ||
+        tag == 'select' && el.selectedIndex == -1)) {
+            return null;
+    }
+
+    if (tag == 'select') {
+        var index = el.selectedIndex;
+        if (index < 0) {
+            return null;
+        }
+        var a = [], ops = el.options;
+        var one = (t == 'select-one');
+        var max = (one ? index+1 : ops.length);
+        for(var i=(one ? index : 0); i < max; i++) {
+            var op = ops[i];
+            if (op.selected) {
+                var v = op.value;
+                if (!v) { // extra pain for IE...
+                    v = (op.attributes && op.attributes.value && !(op.attributes.value.specified)) ? op.text : op.value;
+                }
+                if (one) {
+                    return v;
+                }
+                a.push(v);
+            }
+        }
+        return a;
+    }
+    return $(el).val();
+};
+
+/**
+ * Clears the form data.  Takes the following actions on the form's input fields:
+ *  - input text fields will have their 'value' property set to the empty string
+ *  - select elements will have their 'selectedIndex' property set to -1
+ *  - checkbox and radio inputs will have their 'checked' property set to false
+ *  - inputs of type submit, button, reset, and hidden will *not* be effected
+ *  - button elements will *not* be effected
+ */
+$.fn.clearForm = function(includeHidden) {
+    return this.each(function() {
+        $('input,select,textarea', this).clearFields(includeHidden);
+    });
+};
+
+/**
+ * Clears the selected form elements.
+ */
+$.fn.clearFields = $.fn.clearInputs = function(includeHidden) {
+    var re = /^(?:color|date|datetime|email|month|number|password|range|search|tel|text|time|url|week)$/i; // 'hidden' is not in this list
+    return this.each(function() {
+        var t = this.type, tag = this.tagName.toLowerCase();
+        if (re.test(t) || tag == 'textarea') {
+            this.value = '';
+        }
+        else if (t == 'checkbox' || t == 'radio') {
+            this.checked = false;
+        }
+        else if (tag == 'select') {
+            this.selectedIndex = -1;
+        }
+        else if (t == "file") {
+            if (/MSIE/.test(navigator.userAgent)) {
+                $(this).replaceWith($(this).clone(true));
+            } else {
+                $(this).val('');
+            }
+        }
+        else if (includeHidden) {
+            // includeHidden can be the value true, or it can be a selector string
+            // indicating a special test; for example:
+            //  $('#myForm').clearForm('.special:hidden')
+            // the above would clean hidden inputs that have the class of 'special'
+            if ( (includeHidden === true && /hidden/.test(t)) ||
+                 (typeof includeHidden == 'string' && $(this).is(includeHidden)) ) {
+                this.value = '';
+            }
+        }
+    });
+};
+
+/**
+ * Resets the form data.  Causes all form elements to be reset to their original value.
+ */
+$.fn.resetForm = function() {
+    return this.each(function() {
+        // guard against an input with the name of 'reset'
+        // note that IE reports the reset function as an 'object'
+        if (typeof this.reset == 'function' || (typeof this.reset == 'object' && !this.reset.nodeType)) {
+            this.reset();
+        }
+    });
+};
+
+/**
+ * Enables or disables any matching elements.
+ */
+$.fn.enable = function(b) {
+    if (b === undefined) {
+        b = true;
+    }
+    return this.each(function() {
+        this.disabled = !b;
+    });
+};
+
+/**
+ * Checks/unchecks any matching checkboxes or radio buttons and
+ * selects/deselects and matching option elements.
+ */
+$.fn.selected = function(select) {
+    if (select === undefined) {
+        select = true;
+    }
+    return this.each(function() {
+        var t = this.type;
+        if (t == 'checkbox' || t == 'radio') {
+            this.checked = select;
+        }
+        else if (this.tagName.toLowerCase() == 'option') {
+            var $sel = $(this).parent('select');
+            if (select && $sel[0] && $sel[0].type == 'select-one') {
+                // deselect all other options
+                $sel.find('option').selected(false);
+            }
+            this.selected = select;
+        }
+    });
+};
+
+// expose debug var
+$.fn.ajaxSubmit.debug = false;
+
+// helper fn for console logging
+function log() {
+    if (!$.fn.ajaxSubmit.debug) {
+        return;
+    }
+    var msg = '[jquery.form] ' + Array.prototype.join.call(arguments,'');
+    if (window.console && window.console.log) {
+        window.console.log(msg);
+    }
+    else if (window.opera && window.opera.postError) {
+        window.opera.postError(msg);
+    }
+}
+
+}));

From 6794fc899ccd5d67b9c54d3c5f57197da4dc5f78 Mon Sep 17 00:00:00 2001
From: Ilya Konanykhin <ilya.konanykhin@gmail.com>
Date: Wed, 18 Jan 2017 18:40:22 +0600
Subject: [PATCH 3/7] Show bike photo in a task list

---
 app/views/task_lists/edit.haml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/app/views/task_lists/edit.haml b/app/views/task_lists/edit.haml
index dcc8399..537955e 100644
--- a/app/views/task_lists/edit.haml
+++ b/app/views/task_lists/edit.haml
@@ -8,6 +8,10 @@
 
 %h4= @task_list.item.model
 
+- if @task_list.item.photo?
+  %p
+    %img{src: @task_list.item.photo.url(:thumb),  class: 'img-thumbnail'}
+
 %fieldset
   .form-group
     - @task_list.tasks.each do |task|

From e9b5a6ab7c746b9374bcb6d68305cbb3e270ce3d Mon Sep 17 00:00:00 2001
From: Ilya Konanykhin <ilya.konanykhin@gmail.com>
Date: Thu, 19 Jan 2017 17:35:02 +0600
Subject: [PATCH 4/7] Fix: file storage to .gitignore

---
 .gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.gitignore b/.gitignore
index 7bd49d8..c2a28a0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,5 +7,6 @@ tmp/
 .rbenv-version
 .DS_Store
 public/assets
+public/system
 config/database.yml
 .idea/
\ No newline at end of file

From ca72edb7e03af2c85a1c0e2f525da2712a32b21a Mon Sep 17 00:00:00 2001
From: Ilya Konanykhin <ilya.konanykhin@gmail.com>
Date: Thu, 26 Jan 2017 15:50:24 +0600
Subject: [PATCH 5/7] Client side validation on sign up page

---
 .../javascripts/devise/registrations.js       | 115 +++++++++++-------
 app/assets/javascripts/utils.js               |   8 +-
 app/views/devise/registrations/new.html.haml  |  15 ++-
 3 files changed, 87 insertions(+), 51 deletions(-)

diff --git a/app/assets/javascripts/devise/registrations.js b/app/assets/javascripts/devise/registrations.js
index 89e7d76..4d81ac5 100644
--- a/app/assets/javascripts/devise/registrations.js
+++ b/app/assets/javascripts/devise/registrations.js
@@ -2,50 +2,79 @@ $(document).ready(function(){
   var MIN_LEN = 3;
   var MAX_SUBMITS = 3;
   var submit_count = 0;
-  $("input[name=commit]").click( function(e){
-    console.log("clicked");
-    submit_count += 1;
-    //IDs of contact info
-    var contact_info_ids = [
-      "user_email",
-      "user_user_profiles_attributes_0_addrStreet1",
-      "user_user_profiles_attributes_0_addrCity",
-      "user_user_profiles_attributes_0_addrState",
-      "user_user_profiles_attributes_0_addrZip",
-      "user_user_profiles_attributes_0_phone"
-    ];
-    var contact_vals = "";
-    var index = 0;
-    //see if any contact info exists
-    for( var index in contact_info_ids){
-      contact_vals += $("#"+contact_info_ids[index]).val();
-    }
-    if( contact_vals.length >= MIN_LEN || submit_count > MAX_SUBMITS){
-
-      if( submit_count > MAX_SUBMITS ){
-        alert("Fine.");
+
+  var checkContacts = function() {
+      submit_count += 1;
+      //IDs of contact info
+      var contact_info_ids = [
+          "user_email",
+          "user_user_profiles_attributes_0_addrStreet1",
+          "user_user_profiles_attributes_0_addrCity",
+          "user_user_profiles_attributes_0_addrState",
+          "user_user_profiles_attributes_0_addrZip",
+          "user_user_profiles_attributes_0_phone"
+      ];
+
+      var contact_vals = "";
+      //see if any contact info exists
+      for( var index in contact_info_ids){
+          contact_vals += $("#"+contact_info_ids[index]).val();
       }
-      return true;
-
-    }else{
-
-      switch(submit_count){
-        case 1:
-          alert("It appears you have not entered any contact information.  " +
-            "Please do.");
-          break;
-        case 2:
-          alert("It is highly recommended that you enter at least one form of" +
-            " contact information.  It is in your best interest.");
-          break;
-        case 3:
-          alert("If something happens to your bicycle, we will not be able to" +
-            " notify you.  Please enter at least one form of contact.");
-          break;
-        default:
-          alert("Please enter at least one form of contact.");
+      if( contact_vals.length >= MIN_LEN || submit_count > MAX_SUBMITS){
+
+          if( submit_count > MAX_SUBMITS ){
+              alert("Fine.");
+          }
+          return true;
+
+      }else{
+
+          switch(submit_count){
+              case 1:
+                  alert("It appears you have not entered any contact information.  " +
+                      "Please do.");
+                  break;
+              case 2:
+                  alert("It is highly recommended that you enter at least one form of" +
+                      " contact information.  It is in your best interest.");
+                  break;
+              case 3:
+                  alert("If something happens to your bicycle, we will not be able to" +
+                      " notify you.  Please enter at least one form of contact.");
+                  break;
+              default:
+                  alert("Please enter at least one form of contact.");
+          }
+          return false;
       }
-      return false;
-    }
+  };
+
+  var checkValid = function() {
+      var errors = {};
+      var hasErrors = false;
+      ["username", "first_name", "last_name"].forEach(function(requiredField) {
+          if(!$("#user_" + requiredField).val().trim()) {
+              errors["user_" + requiredField] = ["can't be blank"];
+              hasErrors = true;
+          }
+      });
+
+      if($("#user_password").val().length < 6) {
+          errors["user_password"] = ["is too short (minimum is 6 characters)"];
+          hasErrors = true;
+      }
+
+      if($("#user_password").val() != $("#user_password_confirmation").val()) {
+          errors["user_password_confirmation"] = ["confirmation doesn't match password"];
+          hasErrors = true;
+      }
+
+      displayFormErrors({errors: errors}, "#new_user");
+
+      return !hasErrors;
+  };
+
+  $("input[name=commit]").click(function(e){
+      return checkContacts() && checkValid();
   });
 });
diff --git a/app/assets/javascripts/utils.js b/app/assets/javascripts/utils.js
index fff333e..cce11e6 100644
--- a/app/assets/javascripts/utils.js
+++ b/app/assets/javascripts/utils.js
@@ -1,8 +1,10 @@
-function displayFormErrors(data){
+function displayFormErrors(data, form){
+  if(form){
+    $(form).find(".form-group.has-error").removeClass("has-error").find(".help-block").html("");
+  }
   if(data.errors != undefined ){
     $.each(data.errors, function(field, errorMsg) {
-      $("#"+field).closest(".form-group").addClass("has-error");
-      $("#"+field).siblings(".help-block").html(errorMsg.join(", "));
+      $("#"+field).closest(".form-group").addClass("has-error").find(".help-block").html(errorMsg.join(", "));
     });
   }
 }
diff --git a/app/views/devise/registrations/new.html.haml b/app/views/devise/registrations/new.html.haml
index 05269ab..62e12b9 100644
--- a/app/views/devise/registrations/new.html.haml
+++ b/app/views/devise/registrations/new.html.haml
@@ -7,13 +7,16 @@
 
       %fieldset
         .form-group
-          = f.text_field :username, placeholder: 'Username', class: 'form-control'
+          = f.text_field :username, placeholder: 'Username', class: 'form-control', required: true
+          .help-block
 
         .form-group
-          = f.text_field :first_name, placeholder: 'First Name', class: 'form-control'
+          = f.text_field :first_name, placeholder: 'First Name', class: 'form-control', required: true
+          .help-block
 
         .form-group
-          = f.text_field :last_name, placeholder: 'Last Name', class: 'form-control'
+          = f.text_field :last_name, placeholder: 'Last Name', class: 'form-control', required: true
+          .help-block
 
         .form-group
           = f.email_field :email, placeholder: 'E-mail', class: 'form-control'
@@ -31,10 +34,12 @@
 
       %fieldset
         .form-group
-          = f.password_field :password, placeholder: 'Password', class: 'form-control'
+          = f.password_field :password, placeholder: 'Password', class: 'form-control', required: true
+          .help-block
 
         .form-group
-          = f.password_field :password_confirmation, placeholder: 'Password Confirmation', class: 'form-control'
+          = f.password_field :password_confirmation, placeholder: 'Password Confirmation', class: 'form-control', required: true
+          .help-block
 
         .form-group
           = f.submit 'Sign up', class: 'btn btn-primary'

From ed2f3f6e61b2f221e1530bf560aeb59443346c2c Mon Sep 17 00:00:00 2001
From: Ilya Konanykhin <ilya.konanykhin@gmail.com>
Date: Thu, 26 Jan 2017 15:50:47 +0600
Subject: [PATCH 6/7] Fix: alert "Fine" only once

---
 app/assets/javascripts/devise/registrations.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/assets/javascripts/devise/registrations.js b/app/assets/javascripts/devise/registrations.js
index 4d81ac5..5895aa8 100644
--- a/app/assets/javascripts/devise/registrations.js
+++ b/app/assets/javascripts/devise/registrations.js
@@ -22,7 +22,7 @@ $(document).ready(function(){
       }
       if( contact_vals.length >= MIN_LEN || submit_count > MAX_SUBMITS){
 
-          if( submit_count > MAX_SUBMITS ){
+          if( submit_count == MAX_SUBMITS + 1 ){
               alert("Fine.");
           }
           return true;

From 66fee66db05d675fb796611da85e9036816fd191 Mon Sep 17 00:00:00 2001
From: Ilya Konanykhin <ilya.konanykhin@gmail.com>
Date: Thu, 26 Jan 2017 15:56:28 +0600
Subject: [PATCH 7/7] Fix: validate username presence & uniqueness

---
 app/models/user.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/models/user.rb b/app/models/user.rb
index b5fd9d0..5c62268 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -26,6 +26,7 @@ class User < ActiveRecord::Base
 
   default_scope order('username ASC')
 
+  validates :username, :presence => true, uniqueness: true
   validates :first_name, :presence => true
   validates :last_name, :presence => true