Hi, I've been looking at your datamapper solution and it's been coming along great. However I've got an issue with "value objects". (I'm using a Domain Driven Design approach)
Basically these are objects that have no identity but allow you to encapsulate some properties with application logic like validation, custom methods... An example: class Employee: property :id, Serial property :name, String, :required => true property :employment, Period, :required => true end class Period: # should act as a value object property :start, Date, :required => true property :end, Date, :required => true # specific period validation constraints like "end after start", ... end I think that all I need is some way to create composed properties (that are basically a set of other properties). In ActiveRecord I could simulate this behaviour by using composed_of in combination with validates_associated. I've looked at custom types, but they seem to cover only one column in the database. Is a feature like this implemented or planned? Could I create this behaviour with a custom plugin? Thanks for your advice in this matter! Peter -- You received this message because you are subscribed to the Google Groups "DataMapper" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/datamapper?hl=en.
