Oh, I forgot to say... so, I mention that fact that you can't use
arrayToList unless you are sure there are no commas in the data. (Or, if
you sure there is no X, where X is a custom delimiter.) If you can't be
sure of that, you must walk through the array. I wrote a UDF that will
do this.
/**
* ArrayFind will search an array for a value. We don't use a simple
* convert to list/listfind method because we don't want to worry about
delimiters
*
* @param arr The array to search
* @param target The string to search for
* @return Returns the position match, or 0
*/
function ArrayFind(arr,target) {
var i = 1;
for(i = 1; i lte arrayLen(arr); i = i+1) {
if(arr[i] eq target) return i;
}
return 0;
}
We also have a UDF at cflib.org that will search a sorted array:
http://www.cflib.org/udf.cfm?ID=150
=======================================================================
Raymond Camden, Principal Spectra Compliance Engineer for Macromedia
Email : [EMAIL PROTECTED]
Yahoo IM : morpheus
"My ally is the Force, and a powerful ally it is." - Yoda
> -----Original Message-----
> From: Raymond Camden [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, December 20, 2001 8:49 AM
> To: CF-Talk
> Subject: RE: Finding an a specific item in array
>
>
> Well, unfortunately, it looks like your array isn't an array of simple
> values, but an array of structures. If your array was all
> simple values,
> and you were 100% sure that the values would not contain a common
> delimiter, then you could simply do:
>
> <cfif not listFind(arrayToList(thearray),newID)>
>
> This simply converts the array to a list, and then does a find on it.
> Since your array contains structs, you will have to loop through it.
>
> <cfset haveIt = false>
> <cflock scope="session" type="readOnly" timeout=3>
> <cfloop index="x" from=1 to="#arrayLen(session.cart)#">
> <cfif session.cart[x].item_id is newid>
> <cfset haveIt = true>
> <cfbreak>
> </cfif>
> </cfloop>
> </cflock>
>
> This will loop over the array and check the item_id value of each item
> in the array. If it finds it, it sets a boolean to true and
> breaks out.
> If you want to remember x, you can also do a <cfset foundItAt = x>, or
> some such.
>
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