Hi List, As part of an e-commerce system I am building, I need a way to specify a set of schemas that the purchaser must fill in data for. For example, in order to purchase product A, you need to select a paint colour, but in order to purchase product B, you must select 3 paint colours. I need a way for the site manager to specify this when adding products to the site. Currently, my plan for dealing with this is that I give all products a "product_attribute" property, which consists of a list of schemas. There are two relatively minor problems I have with this system: In order to get the schemas, I currently have them all subclassing IProductAttributes, and I look up the Interfaces vocabulary and parse it for descendants of IProductAttributes. I would like a simpler way to get them. One idea I had was creating my own Type, and declaring them all to be of that type. Unfortunately, I don't know how to get a list of all interfaces of a given type. The second problem I have is that the built-in widget for a List of Choices only allows you to select a single instance of each option available to the Choice. Is this inherent to the Choice field itself, or is it merely a limitation of the widget?
Any advice on either of these problems, or any suggestions on a simpler way to accomplish the overall goal, would be very appreciated. Thanks, Alec Munro _______________________________________________ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users