Re: [CFCDev] Code Reuse

[Marcantonio Silva]

Well,   If if you do customer = from, I�m sure your code will work fine.   But as CF works, when you do this, you�re simply sayng that the variable name "customer" is a pointer to the structure "form". Any change made in the customer struct will change the value of the form, because they�re pointing to the same structure in memory. This happens because in cf, structures and queries acess the data as references, all other variables (like arrays, and simple vars) access the data by values.   So if, in any case, you change customer.firstname, as an example: <cfset customer.firstname = Trim(customer.firstname)>   You�re actually changing the value of form.firstname ... and there are cases where you won�t want to do this.     Hope that helps.       Marcantonio da Silva Diretor de Desenvolvimento de Produtos [EMAIL PROTECTED] Navita - http://www.navita.com.br 55 (11) 3365-2173  - (11) 9656-4634 ----- Original Message ----- From: Paul Giesenhagen To: [EMAIL PROTECTED] Sent: Tuesday, October 07, 2003 6:05 PM Subject: Re: [CFCDev] Code Reuse So if you have form.firstName and form.lastName   Doing this isn't good enough:   <cfset customer = form>   You must <cfset customer = Duplicate(form)> // once you do the above // customer will now hold the form values in the customer struct?   <cfoutput>   #customer.firstName#   </cfoutput>   Paul Giesenhagen QuillDesign   ----- Original Message ----- From: Marcantonio Silva To: [EMAIL PROTECTED] Sent: Tuesday, October 07, 2003 4:05 PM Subject: Re: [CFCDev] Code Reuse Hi Paul,   It is possible and recommended. In fact, you shoudn�t have FORM or any other scope favriables inside your cfc, only arguments, thats the best practice.   Althou you may want to pass and get every argument independenttly, which seems more flexible and more OO.   As you mnay know, form, as all other scopes, is a struct. All you would have to do is duplicate your form struct and then pass it to the cfc call, something like:   <cfset customer = Duplicate(FORM) >   (you may use StructCopy, but this only duplicates the first struct 'level' and creates pointers to nested structures, don�t use customer = form, because this will only reference the form structure and any change made to the customer struct will change the value of the form).   Regards,   Marcantonio da Silva Diretor de Desenvolvimento de Produtos [EMAIL PROTECTED] Navita - http://www.navita.com.br 55 (11) 3365-2173  - (11) 9656-4634 ----- Original Message ----- From: Paul Giesenhagen To: [EMAIL PROTECTED] Sent: Tuesday, October 07, 2003 5:43 PM Subject: [CFCDev] Code Reuse Ok, I am really trying to utilize CFC's and utilize their pronounced ability to handle alot of good code reuse.   I have a CFC that handles customer information.  And I have two ways that customer information can be populated and manipulated:   1) Through a form (form.firstName, form.lastName) OR 2) Though a struct being passed to the CFC customer.firstName, customer.lastName   It is possible (and good practice) to create 1 simple function that can handle both inputs?  How do you decern between the two scopes?   Any suggestions and help would be appreciated.   Also, are their any good resources out their for code reuse as it pertains to CFC's or even CFMX in general.   Paul Giesenhagen QuillDesign