returning function value

[Guest]

this is my .cfc
<cfcomponent>
<cffunction name="httpTransaction" access="public"
returntype="string">
<cfargument name="USER" type="string" required="yes">
<cfargument name="VENDOR" type="string" required="yes">

<CFHTTP url="" method="post" resolveurl="no" timeout="30"
<CFHTTPPARAM type="header" name="X-VPS-REQUEST-ID"
value="#CreateUUID()#">
<CFHTTPPARAM type="header" name="X-VPS-CLIENT-TIMEOUT" value="30">
<CFHTTPPARAM name="USER" type="formfield" value="#USER#" encoded="no">
<CFHTTPPARAM name="VENDOR" type="formfield" value="#VENDOR#"
encoded="no">
</CFHTTP>


<!--- how do i return the value --->


</cffunction>
</cfcomponent>


and I'm trying to pass the


<cfoutput>CFHTTP.FileContent#</cfoutput>to the page that is invoking
the above function.
Thanks,

[Newsgroup_User]

RTFM

<cffunction ...>
<cfargument1 ...>
<cfargument2 ...>
....
<cfset var myResult = "">
...
<cfreturn myResult>
</cffunction>

hth

---
Azadi Saryev
Sabai-dee.com
http://www.sabai-dee.com

[BKBK]

I think it's only appropriate to return the cfhttp entity that Coldfusion creates after running the tag. I think its a structure, but can't recall now. So I use type "any". The result is:

<cffunction name="httpTransaction" access="public"
returntype="any" output="false">

<!--- ... etc., etc., ... --->

<cfreturn cfhttp>
</cffunction>

On the calling page you would then have:
<cfset httpObj = createobject ("component", "component_path")>
<cfset myResult = httpObj.httpTransaction(myUser, myVendor)>
<cfset content = myResult.fileContent>

P.S.
- give url attribute a value;
- scope your vars, hence arguments.USER and arguments.VENDOR

[Guest]

I'm a little confused on:
<cfset myResult = httpObj.httpTransaction(myUser, myVendor)>

are the variables "myUser", "myVendor", coming from the scope of the values that we've already passed to the cfarguments? I'm wondering if we are passing those same variables again?

thanks,

[Guest]

Wait. I think I spoke too soon. I'll try something. It's usually after you move the piece that you see it's a bad move.

[Guest]

OK, it all made sense, but I have one last question. I'm getting this error message,

"You have attempted to dereference a scalar variable of type class java.lang.String as a structure with members".

He is what we put together:

<cfset requestData = StructNew()>
<CFSET requestData.VENDOR = "john">
<CFSET requestData.USER = "doe">

<CFSET httpObj = createObject("component", "Caller")>
<CFSET myResult = httpObj.httpTransaction(requestData.VENDOR,requestData.USER )>
<CFSET content = #myResult.fileConent#>

<CFOUTPUT>#content#</CFOUTPUT>

[freakyAndFree · Accepted solution]

Look -- your httpTransaction() function is returning a string. That string is referenced in your code as 'myResult'. Therefore, just change this:
<CFSET content = #myResult.fileConent#>
<CFOUTPUT>#content#</CFOUTPUT>

to this:

<cfoutput>#myResult#</cfoutput>

[Guest]

You rock. Thanks for the inspiration!!

[BKBK]

Error message:
"You have attempted to dereference a scalar variable of type class java.lang.String as a structure with members".

I advised you to return the struct cfhttp, but you continued to return a string instead. Hence the error.

I think it's much better for your code to return the cfhttp structure rather than a string. Just change the return type to "struct" or to "any". Then let the function end with: <cfreturn cfhttp>.

There are at least two good reasons to return a structure. First, you thereby make much more information available to the caller. Secondly, it enables the calling page to do some validation, for example, like this: