Hi Nando. I generally agree with you. I think there is a difference though. The Service / Gateway thing getting discussed here is part of a simple Model. A framework like MG helps you separate this from the View etc but it leaves it up to you to build your model. I DO think there's too much emphasis put on Service layers etc and also accept that having some services and some Gateways doesn't make you an OO developer. I would prefer to think about services etc later after the basics of having objects interact with each other etc. The Illudium generator is a handy tool but not a great way to learn OO.
The Java 'Head First' books are good but you always have to bear in mind that CF is a different beast. I would also advise people try building their own and move to frameworks as soon as. In the sample app I would also avoid services, factories etc and just create some objects and get them doing things! Alan ________________________________________ From: [email protected] [EMAIL PROTECTED] On Behalf Of Nando [EMAIL PROTECTED] Sent: 06 May 2008 14:08 To: [email protected] Subject: [CFCDEV] Re: Help in learning service objects: How to use I believe there's a tradeoff here so far as learning OO goes. Using a combination of MG, Transfer and Coldspring for instance will give you a good example to learn from. Once you see how things are done using the frameworks, you may be in a better position to architect something on your own. Speaking from experience, it can take a very long time to put all the pieces together on your own, years. And if you need to be productive in that time, well, that's where I'd recommend that someone new to this jump into what seems like the deep end and use these frameworks for awhile. That said, you need to know at least the basics of using components to use the frameworks. Attempting to build something without the frameworks may seem like a shallower learning curve, but what you may find down the road, once you get your basic business object, DAO and/or gateway working is that you don't know how to progress from there. You'll be in deep water without knowing it. Your applications take you longer to build, it seems like you've learned something, but now what? If that's as far as we get, from a productivity standpoint, we should just stay with procedural code. The frameworks give us the space to be apprentices of OO, which is good, rather than taking too large a step, attempting to be a master of OO in too short a time, and usually, for most of us, without any personal guidance. They also allow us to focus on our client's needs, rather than get lost in abstract architectural questions. I find Transfer in particular allows me to be much more productive than I would be using procedural code. If I were to guide someone, I'd suggest that they dabble in attempting to build a simple application on their own, just to get the hang of using CFC's in an object oriented manner. But just dabble. Jump into using the frameworks as soon as you can, even if it seems like the deep end. It will probably save you from developing a code base that you need to rebuild from scratch several times over! If you are staking your finances on such a code base, I think you'll be much better off using the frameworks rather than on your own. On Tue, May 6, 2008 at 1:55 PM, wkolcz <[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>> wrote: I've been working with Reactor, but thought it'd be better to learn how these things really work before I get too much into an ORM that does it mostly for me. ________________________________ From: Nando <[EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>> Sent: Tuesday, May 06, 2008 4:49 AM To: [email protected]<mailto:[email protected]> Subject: [CFCDEV] Re: Help in learning service objects: How to use Ah, there's my cue. Transfer recommended! Another option is Transfer (before someone recommends it :-) ) Alan ________________________________________ From: [email protected]<mailto:[email protected]> [EMAIL PROTECTED]<mailto:[email protected]>] On Behalf Of wkolcz [EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]>] Sent: 06 May 2008 12:36 To: [email protected]<mailto:[email protected]> Subject: [CFCDEV] Help in learning service objects: How to use I downloaded and installed Brian Rinaldi's Illudium PU-36 Code Generator. It produced a DAO, a Gateway, a bean, and a service object. I am attempting to learn how a service object works, or, more imporantly, how to use the service object. It comes with the following functions. (mine happens to be releasesServices.cfc) init (takes an instance of the DAO and the Gateway) createreleases getreleases getreleasess savereleases deletereleases So basically, I am getting the DAO (create,get,save,delete) and a Gateway (getreleasess)? How can I call the gateway to return a list of records. Or, more important, how can I use the results on my view? Its returned as an array. What am I missing. I need the education :-) I can setting my controller to: <cfset RDAO = createObject("component", "medPortal.apps.newsroom.model.releases.releasesDAO").init("prmc-media_asql")> <cfset RGW = createObject("component", "medPortal.apps.newsroom.model.releases.releasesGateway").init("prmc-media_asql")> <cfset RS = createObject("component", "medPortal.apps.newsroom.model.releases.releasesService").init(#RDAO#, #RGW#)> <cfset allReleases = RS.getreleasess()> Here is the full function: <cffunction name="getreleasess" access="public" output="false" returntype="array"> <cfargument name="ID" type="Numeric" required="false" /> <cfargument name="urllink" type="String" required="false" /> <cfargument name="linktext" type="String" required="false" /> <cfargument name="story" type="String" required="false" /> <cfargument name="summary" type="String" required="false" /> <cfargument name="keyword1" type="String" required="false" /> <cfargument name="keyword2" type="String" required="false" /> <cfargument name="keyword3" type="String" required="false" /> <cfargument name="keyword4" type="String" required="false" /> <cfargument name="um_department" type="String" required="false" /> <cfargument name="photo" type="String" required="false" /> <cfargument name="hiresphoto" type="String" required="false" /> <cfargument name="releaseDate" type="Date" required="false" /> <cfargument name="rss_feed" type="String" required="false" /> <cfargument name="contactName" type="String" required="false" /> <cfargument name="contactEmail" type="String" required="false" /> <cfargument name="contactPhone" type="String" required="false" /> <cfargument name="guestEmail" type="String" required="false" /> <cfargument name="guestName" type="String" required="false" /> <cfargument name="subTitle" type="String" required="false" /> <cfargument name="city" type="String" required="false" /> <cfargument name="videoCode" type="String" required="false" /> <cfargument name="audioCode" type="String" required="false" /> <cfargument name="ExpertName" type="String" required="false" /> <cfargument name="ExpertURL" type="String" required="false" /> <cfargument name="learnMoreText" type="String" required="false" /> <cfargument name="learnMoreURL" type="String" required="false" /> <cfargument name="studyURL" type="String" required="false" /> <cfargument name="reportURL" type="String" required="false" /> <cfargument name="topStory" type="Boolean" required="false" /> <cfargument name="photoCaption" type="String" required="false" /> <cfargument name="spanishURL" type="String" required="false" /> <cfargument name="defaultLogo" type="String" required="false" /> <cfreturn variables.releasesGateway.getByAttributes(argumentCollection=arguments) /> </cffunction> -- Nando M. Breiter The CarbonZero Project CP 234 6934 Bioggio Switzerland +41 76 303 4477 [EMAIL PROTECTED] -- Nando M. Breiter The CarbonZero Project CP 234 6934 Bioggio Switzerland +41 76 303 4477 [EMAIL PROTECTED] --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "CFCDev" 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/cfcdev?hl=en -~----------~----~----~----~------~----~------~--~---
