section move to other page

app/models/merged/section.rb

@@ -33,6 +33,10 @@ module Merged
       end
     end
 
+    def allowed_fields
+      super + [:page_id]
+    end
+
     def has_cards?
       template_style.has_cards?
     end

app/models/merged/view_base.rb

@@ -58,14 +58,16 @@ module Merged
       end
     end
 
-    def update(key , value)
-      raise "unsuported field #{key} for #{template}" unless allowed_fields.include?(key)
-      if(! attributes[key].nil? ) # first setting ok, types not (yet?) specified
-        if( @attributes[key].class != value.class )
-          raise "Type mismatch #{key} #{key.class}!=#{value.class}"
+    def update(hash)
+      hash.each do |key , value|
+        raise "unsuported field #{key} for #{template}:#{allowed_fields}" unless allowed_fields.include?(key.to_sym)
+        if(! attributes[key].nil? ) # first setting ok, types not (yet?) specified
+          if( @attributes[key].class != value.class )
+            raise "Type mismatch #{key} #{key.class}!=#{value.class}"
+          end
         end
+        attributes[key] = value
       end
-      attributes[key] = value
     end
 
     #other may be nil