Hi there,
Let me explain what I am trying to do,
the executive summary is that I want to count the number of arguments
passed into a function.
anyFunction(), might have 10 cfargument properties assigned to it.
But if I call;
anyFunction(arg1="1", arg2="2")
Then I somehow want to be able to retrieve the value 2 (2 passed in
variables).
Why,
Because I have a getObject method.
getObject is basically a cfquery and I filter the results of the
query, based on the arguments passed in.
so if I have;
getObject(myId = 1, yourId = 2);
then it creates SQL that looks like;
select STUFF
from myTable
where 1=1
and myid=1
and yourid=1
and...(add a number of arguments here....)
If I do NOT pass in any arguments, then the SQL retrieves ALL rows
from the table.
But I want to do is;
If no arguments are passed in - create an empty object.
(we have a getAllObjects function to retrieve all rows)
maybe some code will help...
I have two snippets of code;
One is a function in a CFC, the other is some code in a CFM template
that calls the function - pretty simple.
myTestCFC.cfc:
<cffunction name="blah">
<cfargument name="text" required="false" />
<cfargument name="messageid" required="false" />
<cfargument name="queryid" required="false" />
<cfargument name="datasource" required="false" />
<cfset var local = {} />
<cfset local.length = #structCount(arguments)#>
<cfreturn local.length>
</cffunction>
test.cfm:
<cfset myReturnVal = myTestCFC.blah(text="gav", queryid=3)>
<cfdump var="#myReturnVal#">
<br />
<cfif structKeyExists(messageCFC, "messageid")>
Yes
<cfelse>
No
</cfif>
the output of this code is;
4
No
The value 4 is because blah() has 4 arguments defined.
But structKeyExists, returns false...
How can it not exist but be accounted for?
surely one of the values is wrong?
If I change the code slightly to be;
<cfset local.length = #structKeyList(arguments)#>
instead of;
<cfset local.length = #structCount(arguments)#>
Then all four arguments defined in the "stub" of the function are
listed.
So is one of the values being returned a bug?
and lastly,
How do I go about "counting" actual passed in aerguments?
(I could write another function that loops through
structKeyLists(arguments),
then do a structKeyExists[i]
and increment a counter and do my own accounting....
but it just "seems" like there should be a nicer way to do it...
As always - Thanks for any thoughts!
Gavin.
--
You received this message because you are subscribed to the Google Groups
"cfaussie" group.
To post to this group, send email to cfaussie@googlegroups.com.
To unsubscribe from this group, send email to
cfaussie+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/cfaussie?hl=en.
