proper error message

devops-service/exceptions/invalid_record.rb

@@ -1,6 +1,10 @@
 require_relative "devops_error"
 class InvalidRecord < ::Devops::Exception::DevopsError
 
+  # message could be a String or a hash like
+  # {
+  #   error_data: [{:key=>:provider, :message=>"Value can not be undefined"}]
+  # }
   def initialize msg
     if msg.is_a?(String)
       super(msg)
@@ -9,6 +13,17 @@ class InvalidRecord < ::Devops::Exception::DevopsError
     end
   end
 
+  def message
+    if @object
+      messages = @object[:error_data].map do |error_item|
+        "#{error_item[:key]}: #{error_item[:message]}"
+      end
+      "Following errors occured: \n#{messages.join('\n')}"
+    else
+      super
+    end
+  end
+
   def http_status
     400
   end