Oh, one more thing ... i have a suspicion that you might need to adjust the relationship between the parent and child ... i needed to do this a few weeks ago and your situation sounds similar. Maybe someone more experienced will chime in, and maybe you could post the objects in question and how you have them currently modeled, and we see what happens.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Magnus Wege Sent: Saturday, November 13, 2004 2:37 PM To: [EMAIL PROTECTED] Subject: [CFCDev] Problems with inheritance and DAO Objects Hi everyone, I am quite new in applying OOD/P to CF via implementing cfcs. So here is my problem: I have a CFC called Order.cfc. Within this CFC I create several DAO Objects (e.g. for related customers instantiating the CustomerDAO.cfc) So far so good. Now I want all the SQL stuff from the Order.cfc out of it and put it to OrderDAO.cfc. So I created a new property of the Order.cfc by instantiating the OrderDAO.cfc through the init-Method of the Order.cfc: <cfset this.oOrderDAO = createObject("component","OrderDAO").init() /> By the getter-Method in the Order.cfc I can get access to these DAO-Objects. <cffunction name="getOrderDAO" output="false" returntype="struct"> <cfreturn this.oOrderDAO/> </cffunction> Now I want to set my properties (all the variables in the this-scope) via calling the method selectOrders() and calling the mother's method in Order.cfc named setOrdersByStruct(queryResult) in the OrderDAO.cfc using super.setVertragByStruct() <cffunction access="public" name="selectVertrag" output="true"> <cfargument name="iVertragID" type="numeric" required="true"/> <cfquery name="variables.qSelectVertrag" datasource="#this.sDsn#"> SELECT * FROM Order WHERE pk_Order = #val(arguments.iOrderID)# </cfquery> <cfset super.setVertragByStruct(variables.qSelectVertrag, "query")/> </cffunction> An other issue is that I need to get the properties (through the getter-Methods) of the mother's cfc in the child CFC. As I know I cannot get direct access to the this-scope in the mother CFC, so the getter-Method fails. How can I do apply the DAO-Pattern correctly? I heard something of a Transfer Object that may be the golden key to solve this problem. Can anybody explain this to me please? Great thanks in advance for any help. I am looking forward to your replies. Magnus Wege ____________________________________________ web-shuttle AG | Tel +49 89 130 145-0 Wilhelm-Hale-Str. 53 | Fax +49 89 130 145-10 D-80639 Munich | Germany ---------------------------------------------------------- You are subscribed to cfcdev. To unsubscribe, send an email to [EMAIL PROTECTED] with the words 'unsubscribe cfcdev' in the message of the email. CFCDev is run by CFCZone (www.cfczone.org) and supported by Mindtool, Corporation (www.mindtool.com). An archive of the CFCDev list is available at [EMAIL PROTECTED] ---------------------------------------------------------- You are subscribed to cfcdev. To unsubscribe, send an email to [EMAIL PROTECTED] with the words 'unsubscribe cfcdev' in the message of the email. CFCDev is run by CFCZone (www.cfczone.org) and supported by Mindtool, Corporation (www.mindtool.com). An archive of the CFCDev list is available at [EMAIL PROTECTED]
