Add custom validator and fix .html_safe with rescue

app/models/asset.rb

@@ -9,7 +9,10 @@ class Asset
   field :description, localize: true
   field :title, localize: true
   
-  validates_presence_of :title, :data, :description
+  validates :title, :at_least_one => true
+  validates :description, :at_least_one => true
+  validates_presence_of :data
+
 
   belongs_to :asset_category
   belongs_to :assetable, polymorphic: true