Make custom field metaprogramming dynamic

controllers/custom_wizard/admin/custom_fields.rb

@@ -26,6 +26,7 @@ class CustomWizard::AdminCustomFieldsController < CustomWizard::AdminController
     end
     
     if all_fields_saved
+      CustomWizard::CustomField.register_fields
       render json: success_json
     else
       render json: error_json

lib/custom_wizard/custom_field.rb

@@ -79,4 +79,32 @@ class ::CustomWizard::CustomField
         self.new(data)
       end
   end
+  
+  def self.register_fields
+    self.list.each do |field|      
+      klass = field.klass.classify.constantize
+      
+      klass.register_custom_field_type(field.name, field.type.to_sym)
+      
+      klass.define_method(field.name) do
+        custom_fields[field.name] 
+      end
+      
+      if field.serializers.any?
+        field.serializers.each do |serializer|
+          serializer_klass = "#{serializer}_serializer".classify.constantize
+          
+          serializer_klass.class_eval { attributes(field.name.to_sym) }
+          
+          serializer_klass.define_method(field.name) do
+            if serializer == 'topic_view'
+              object.topic.send(field.name)
+            else
+              object.send(field.name)
+            end
+          end
+        end
+      end      
+    end
+  end
 end

plugin.rb

@@ -163,26 +163,7 @@ after_initialize do
   
   CustomWizard::Wizard.register_styles
   
-  CustomWizard::CustomField.list.each do |field|
-    self.send("register_#{field.klass}_custom_field_type", field.name, field.type.to_sym)
-    
-    add_to_class(field.klass.to_sym, field.name.to_sym) do
-      custom_fields[field.name]
-    end
-    
-    if field.serializers.any?
-      field.serializers.each do |klass|
-        klass = klass.to_sym
-        add_to_serializer(klass, field.name.to_sym) do
-          if klass == :topic_view
-            object.topic.send(field.name)
-          else
-            object.send(field.name)
-          end
-        end
-      end
-    end
-  end
+  CustomWizard::CustomField.register_fields
   
   DiscourseEvent.trigger(:custom_wizard_ready)
 end