Deanna,
Thank you very much. Wether or not I invoke or instantiate, am I
correct in assuming that I should pass the userID to the newsmanager
after inserting the user into the users table? Otherwise, the db may
not let me insert the userID in the linking table without a
corresponding userID in the users table.
Another thing: In this scenario, should I instantiate an object of the
newsmanager component? I have been reading in my Java book that there
is a difference between a method class and a method instance. A method
class, as you probably know, is not an instance. Does this apply to
CFC's in CFML?
Thanks again,
Aaron
On 2/13/06, Deanna Schneider <[EMAIL PROTECTED]> wrote:
> Yes, that's one way to do it. You can also instantiate an instance of the
> newsletter cfc and call the methods directly. So..;
>
> <cfcomponent name="user">
> <cfset variables.newsManager = createObject("component", "newsmanager")>
> .....
> <!--- Check if user has subscribed to any newsletters. If so, insert them
> --->
> <cfif (arguments.userMailingListID) IS NOT "">
> <cfset newsresult =
> variables.newsManager.insertNewsSubscription(user_id =arguments.userid,
> newcat_id = arguments.usermailinglistid)>
>
> > </cfif>
>
>
> </cfcomponent>
>
> Whether your want to instantiate or invoke depends on the life cycle of your
> user object and whether or not you want to call multiple methods in your
> newsletter manager.
>
> On 2/13/06, Aaron Roberson <[EMAIL PROTECTED]> wrote:
> >
> > Deanna wrote:
> > Well, you could have some object aggregation. So, for example, the user
> > CFC
> > could have an instance of the newsletterManager cfc. So, if a new user is
> > created, and they've requested access to certain newsletters, you'd just
> > run
> > the functions from within the user cfc. Or, if you instantiate a user as
> > an
> > object, there should be a "getId()" function that can be called once it's
> > been instantiated. Then, use that id in a separate call to the newsletter
> > cfc.
> >
> > Deanna and James,
> > Because I am new to CFC's and OOP, could you help me understand how to
> > implement the advice above?
> >
> > This is what I am guessing I should do:
> >
> > Inside the insertUser method of the users component, I should invoke
> > the insertSubscriber method of the newsletter manager component and
> > pass it the userID. Is that it?
> >
> > Would it look like the following code?
> >
> > <!--- Check if user has subscribed to any newsletters. If so, insert them
> > --->
> > <cfif (arguments.userMailingListID) IS NOT "">
> > <cfinvoke
> > component="WhiteHorse.components.newsletter"
> > method="insertNewsSubscription"
> > returnvariable="insertNewsSubscriptionRet">
> > <cfinvokeargument name="user_ID"
> > value="#arguments.userID"/>
> > <cfinvokeargument name="newscat_ID"
> > value="#arguments.userMailingListID#"/>
> > </cfinvoke>
> > </cfif>
> >
> > Your help is greatly apreciated!
> > -Aaron
> >
> >
> > On 2/11/06, James Holmes <[EMAIL PROTECTED]> wrote:
> > > The MAX(ID) technique only works 100% if you use a serializable
> > > transaction in the cftransaction tag, which can impact performance.
> > >
> > > On 2/12/06, Mike Soultanian <[EMAIL PROTECTED]> wrote:
> > > > If you're sure about that, go with it. However, from a previous
> > > > conversation, it didn't seem that was the consensus... but I could
> > very
> > > > well be wrong...
> > > >
> > > > Mike
> > > >
> > > > Aaron Rouse wrote:
> > > > > It does a transaction in the database itself, assuming the database
> > being
> > > > > used supports transactions. This would ensure that you get back the
> > ID that
> > > > > you just inserted.
> > >
> > > --
> > > CFAJAX docs and other useful articles:
> > > http://jr-holmes.coldfusionjournal.com/
> > >
> > >
> >
> >
>
>
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