You can override the assignment operator for the particular field to be able to do your particular logic on assignment. Then just do a write_attribute to save your info in the field. I don't know if that covers all the ways hobo might try to create a new model or not though. I haven't had any problem with an 0.7.5 app that uses that technique though.
On Jun 10, 8:49 pm, Ritchie Young <[email protected]> wrote: > I appreciate all the feedback on this but the more I thought about it, the > more I realised I wasn't really sure what I was asking for. > > I think I meant for Hobo to detect if the rich-type had particular callback > methods and, if so, to hook them into the model's read and write methods for > that field. In other words, to do automatically, what I was doing in my > example. > > This behaviour could be confusing though because the application author > might have some other valid reason for wanting to override those reader and > writer methods. I don't know if there's a resilient way to do this. > > Then I started to think that what I really wanted was a hook into the > view/controller layers. The <view/> tag and I think the <input/> tags > already call to_s on the object being displayed. So by overriding that in > the rich-type we're half-way there. If we could have a from_s method on the > rich type that was called when data was written we could do the conversion > there. Only, from_s would have to be a class method or a constructor because > the rich-types inherit from the base types. > > At this point I read about ActiveRecord's Aggregate functionality, which > seems to overlap this somewhat, and got really confused. Which is why I > haven't logged an enhancement request on lighthouse. > > I'm getting by quite nicely, for now, with my original solution: store it as > an integer and convert it in the field getters and setters. > > /Ritchie --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Hobo Users" 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/hobousers?hl=en -~----------~----~----~----~------~----~------~--~---
