Removed the flash success message

Removes the group if empty

app/assets/javascripts/todos.js.coffee

 class @Todos
-  _this = null;
   constructor: (@name) ->
-    _this = @
+    @clearListeners()
     @initBtnListeners()
-    
+
+  clearListeners: ->
+    $('.done-todo').off('click')
+
   initBtnListeners: ->
     $('.done-todo').on('click', @doneClicked)
-    
-  doneClicked: (e) ->
-    $this = $(this)
-    doneURL = $this.attr('href')
+
+  doneClicked: (e) =>
     e.preventDefault()
     e.stopImmediatePropagation()
-    $spinner = $('<i></i>').addClass('fa fa-spinner fa-spin')
-    $this.addClass("disabled")
-    $this.append($spinner)
+
+    $this = $(e.currentTarget)
+    $this.disable()
+
     $.ajax
       type: 'POST'
-      url: doneURL
+      url: $this.attr('href')
       dataType: 'json'
       data: '_method': 'delete'
-      error: (data, textStatus, jqXHR) ->
-        new Flash('Unable to update your todos.', 'alert')
-        _this.clearDone($this.closest('li'))
-        return
-
-      success: (data, textStatus, jqXHR) ->
-        _this.clearDone($this.closest('li'))
-        return
+      success: (data) =>
+        @clearDone $this.closest('li'), data
 
-  clearDone: ($row) ->
+  clearDone: ($row, data) ->
     $ul = $row.closest('ul')
     $row.remove()
+
+    $('.todos-pending .badge, .todos-pending-count').text data.count
+    $('.todos-done .badge').text data.done_count
+
     if not $ul.find('li').length
-      Turbolinks.visit(location.href)
-    else
-      $pendingBadge = $('.todos-pending .badge')
-      $pendingBadge.text parseInt($pendingBadge.text()) - 1
-
-      $doneBadge = $('.todos-done .badge')
-      $doneBadge.text parseInt($doneBadge.text()) + 1
-
-      $mainTodosPendingBadge = $('.todos-pending-count')
-      $mainTodosPendingBadge.text parseInt($mainTodosPendingBadge.text()) - 1
-    return
-    
\ No newline at end of file
+      $ul.parents('.panel').remove()

app/assets/stylesheets/framework/buttons.scss

@@ -208,3 +208,13 @@
     background-color: #e4e7ed !important;
   }
 }
+
+.btn-loading {
+  &:not(.disabled) .fa {
+    display: none;
+  }
+
+  .fa {
+    margin-right: 5px;
+  }
+}

app/assets/stylesheets/framework/flash.scss

@@ -5,12 +5,6 @@
   width: 100%;
   z-index: 100;
 
-  .flash-success {
-    @extend .alert;
-    @extend .alert-success;
-    margin: 0;
-  }
-
   .flash-notice {
     @extend .alert;
     @extend .alert-info;

app/controllers/dashboard/todos_controller.rb

 class Dashboard::TodosController < Dashboard::ApplicationController
-  before_action :find_todos, only: [:index, :destroy_all]
+  before_action :find_todos, only: [:index, :destroy, :destroy_all]
 
   def index
     @todos = @todos.page(params[:page]).per(PER_PAGE)
@@ -14,7 +14,7 @@ class Dashboard::TodosController < Dashboard::ApplicationController
       format.html { redirect_to dashboard_todos_path, notice: todo_notice }
       format.js { render nothing: true }
       format.json do
-        render json: { status: 'OK', notice: todo_notice }
+        render json: { count: @todos.size, done_count: current_user.todos.done.count }
       end
     end
   end

app/views/dashboard/todos/_todo.html.haml

@@ -16,7 +16,9 @@
 
     - if todo.pending?
       .todo-actions.pull-right
-        = link_to 'Done', [:dashboard, todo], method: :delete, class: 'btn done-todo'
+        = link_to [:dashboard, todo], method: :delete, class: 'btn btn-loading done-todo' do
+          = icon('spinner spin')
+          Done
 
     .todo-body
       .todo-note