On 8/30/05, Brian Kotek <[EMAIL PROTECTED]> wrote:
> It would create an instance of a new Product object, populate it with
> initial values (using the passed attributes struct), and return the
> populated Product object:
>
> <cffunction name="getProduct" access="public" returntype="Product"
> output="false" roles="" hint="Return a new Product instance.">
> <cfargument name="initialValues" type="struct" required="true"
> hint="Initial values for the new Product." />
> <cfreturn createObject( 'component', 'Product' ).init(
> argumentCollection=arguments.initialValues ) />
> </cffunction>
Brian,
I am looking better into your Wegot Wedgets OO application code and I
have a few questions about the form for adding a new product.
Here is a snippet from the XML file for the admin circuit:
<fuseaction name="addProduct">
<set value="#application.productManager.addProduct( attributes )#" />
<relocate url="index.cfm?fuseaction=browse.showCatalog" type="server" />
</fuseaction>
Here is the code for the "addProduct" method of the "ProductManager"
component (I removed out the image upload code to make things easier):
<cffunction name="addProduct" hint="Add a Product to the Catalog."
access="public" returntype="void" output="false">
<cfargument name="productData" type="struct" required="true" />
<cfset var local = structNew() />
<cfset local.product = createObject( 'component',
'wegotwidgetsoo.com.Product' ).init() />
<cfset local.product.setProductByStruct( arguments.productData ) />
<cfset variables.instance.productDAO.create( local.product ) />
</cffunction>
Here is the code for the "setProductByStruct" method of the "Product" component:
<cffunction name="setProductByStruct" hint="I set the instance data
for the Product." access="package" returntype="void" output="false">
<cfargument name="strGetProduct" type="struct" required="true" />
<cfscript>
if ( structKeyExists( arguments, 'productID' ) ) {
variables.instance.productID =
arguments.strGetProduct.productID;
}
else {
variables.instance.productID = '';
}
variables.instance.productName = arguments.strGetProduct.productName;
variables.instance.productDescription =
arguments.strGetProduct.productDescription;
variables.instance.price = arguments.strGetProduct.price;
</cfscript>
</cffunction>
Now to the questions ...
I noticed that I am able to add a product with all empty fields (name,
description and price).
I'd like to avoid that, what would be the best way to do it
server-side (I'll add JS validation client-side too)?
Add the "validate" method to the "Product" component (as you suggested
in the previous emails) and put a check for empty fields in it?
Also, I noticed that if I rename one of the form fields (e.g.
productName to anotherName), when I submit the form, I get an error in
the "Product" component, e.g.:
"Element STRGETPRODUCT.PRODUCTNAME is undefined in ARGUMENTS."
I'd like to avoid that error and put a check to see if all the
required fields exist in the Arguments structure, before trying to
evaluate them.
How would you handle that in a Fusebox MVC OO application like that one?
I am not sure how to change your application to handle that ...
Also, what is the advantage of using an "init" method with no
parameters and instantiating an object with empty variables and then
using the "setProductByStruct" method to set the variables to the
actual values for the object instance? Isn't it simpler just using an
"init" method that takes the same parameters now required by the
"setProductByStruct" method?
I'm am sorry for all the questions, I am a bit confused about all this
OO stuff, since it's very new for me.
Thanks again for all your help and sample applications.
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