validates image and also remove height and width validations

app/models/banner.rb

@@ -6,7 +6,7 @@ class Banner
   
   field :ad_fx, type: String
   field :height, type: Integer
-  field :speed, type: Integer
+  field :speed, type: Integer, default: 500
   field :title, type: String
   field :timeout, type: Integer, default: 5
   field :width, type: Integer
@@ -16,7 +16,6 @@ class Banner
 
   validates_uniqueness_of :title
   validates :title, :length => { :minimum => 2 }
-  validates :height, :speed, :timeout, :width, :presence => true
   
   FX_TYPES = %w(fade scrollHorz scrollVert tileSlide tileBlind)
 

app/views/admin/ad_images/_form.html.erb

@@ -7,6 +7,7 @@
   <%= javascript_include_tag "lib/bootstrap-datetimepicker" %>
   <%= javascript_include_tag "lib/datetimepicker/datetimepicker.js" %>
   <%= javascript_include_tag "lib/module-area" %>
+  <%= javascript_include_tag "validator" %>
 <% end %>
 
 <%#= f.error_messages %>
@@ -38,7 +39,7 @@
             <span class="btn btn-file">
               <span class="fileupload-new"><%= t(:select_image) %></span>
               <span class="fileupload-exists"><%= t(:change) %></span>
-              <%= f.file_field :file %>
+              <%= f.file_field :file, :data => {"fv-validation" => "required;", "fv-messages" => "Cannot be empty.;"}%>
             </span>
             <a href="#" class="btn fileupload-exists" data-dismiss="fileupload"><%= t(:cancel) %></a>
             <div class="controls" data-toggle="buttons-checkbox">
@@ -149,3 +150,13 @@
   <input type="hidden" name="referer_url" value="<%= request.referer %>">
   <%= f.submit t('submit'), class: 'btn btn-primary' %>
 </div>
+<script type="text/javascript">
+  var form  = new FormValidator($("#new_ad_image"));
+</script>
+
+
+
+
+
+
+