Hi Anthony Couple of thoughts:
Common data type validations ( isEmail(), isCreditCard(), isPhoneNumber() ) could go into a shared Validator.cfc Beans may have a validate() function to ensure their data is valid within the bean itself. Business logic that requires knowledge beyond a single bean needs to go elsewhere - perhaps in a Service component or a helper type object. I like the idea of a 'helper' object that is aware of all fields within the form - which may span many beans. This object can receive the 'form' data in a single struct and knows how to extract all the data it needs and convert to the required beans. It then may call the individual beans validate() functions, then perform any cross-bean validation. This is also quite nice for redisplaying the form populated with the originally entered data as all of the data is still in a single un-altered place. I wrote some thoughts on this a little while ago. I also appreciate any thoughts you may have: http://www.stannard.net.au/blog/index.cfm/2007/1/11/Simple-Object-Oriented-F orm-Handling Regards Kevan ________________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Anthony Tinoco Sent: Friday, 1 June 2007 8:32 AM To: cfcdev@cfczone.org Subject: [CFCDEV] form validation - where does it belong? Hi All, As my understanding of cfc development has increased, I am still left wanting in my understanding of where to put form validation logic. Currently, I am putting the form validation logic in the business objects, such as is the form field blank, is it a credit card, is it a phone number, is it an e-mail address, etc. It just seems like this stuff should be handled before getting to the business object. Maybe this comes from my previous experience of working with the Struts Framework which removed form validation logic from the business objects. Would it be best to handle this stuff in a separate validation.cfc which would validate the form and then create a form bean to be passed to the business object upon successful validation? Thoughts would be greatly appreciated on this subject, Anthony You are subscribed to cfcdev. To unsubscribe, please follow the instructions at http://www.cfczone.org/listserv.cfm CFCDev is supported by: Katapult Media, Inc. We are cool code geeks looking for fun projects to rock! www.katapultmedia.com An archive of the CFCDev list is available at www.mail-archive.com/cfcdev@cfczone.org
