RE: [flexcoders] DAO Best Practices

[Steven Webster]

Christian,   Have you explored Flex data-services ?   These CRUD operations on managed collections are *so* quick to develop with FDS....we've already done all the heavy-lifting for you !   Steven   Steven Webster Practice Director (Rich Internet Applications) Adobe Consulting Westpoint, 4 Redheughs Rigg, South Gyle, Edinburgh, EH12 9DQ, UK p: +44 (0) 131 338 6108 m: +44 (0) 7917 428 947  [EMAIL PROTECTED]   From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Briggs, Christian M Sent: 07 July 2006 16:25 To: flexcoders@yahoogroups.com Subject: [flexcoders] DAO Best Practices I’m wondering what people are doing as a best practice for the location of sophisticated business logic in a gateway/dao/bean pattern. For example, I’m currently building an application that has three tables, one of them a linking table for a one-to-many relationship between the other two: - User(userID, username) - AccessKey(accessKeyID, userID, businessID) - Business(businessID, businessName) As a hypothetical example, let’s say that, every time I modified an access key, I wanted to verify that both the user and the business still existed before CRUD-ing an accessKey. This would clearly be outside of a simple get/set operation. Would it be best to put this logic in the DAO or in the gateway? (I presume it should NOT be in the bean) Currently I have the following functions in the - DAO.cfc: read, create, update, delete - Gateway.cfc: getByID, save, deleteByID, getAll Would it make sense to create a new function in the Gateway.cfc called "saveAndCheck", then call the necessary DAO object(s) to use? Thanks for any input, Christian Briggs __._,_.___ -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com SPONSORED LINKS Web site design development Computer software development Software design and development Macromedia flex Software development best practice YAHOO! GROUPS LINKS  Visit your group "flexcoders" on the web.    To unsubscribe from this group, send an email to:  [EMAIL PROTECTED]    Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. __,_._,___