<![CDATA[I like Jamie's method and think it's probably the best, but I thought I'd
just throw another idea into the mix. I wrote a couple of (untested) UDF's
that will recursively look for the previous/next file until it finds it.
The "safetyCounter" is there to avoid an endless loop, so you can adjust the
number as you see fit.
Just a thought.
-Brad
<cfscript>
function getPreviousFile(fileDir,fileID) {
var newID = fileID - 1;
var filePath = fileDir & '\' & newID & '.cfm');
var safetyCounter = 1;
if (arrayLen(arguments GTE 3)) { safetyCounter = arguments[3] + 1;
if (safetyCounter GTE 20) { return ""; }
if (fileExists(filePath)) {
return newID;
} else {
return getPreviousFile(fileDir, newID, safetyCounter);
}
}
function getNextFile(fileDir,fileID) {
var newID = fileID + 1;
var filePath = fileDir & '\' & newID & '.cfm');
var safetyCounter = 1;
if (arrayLen(arguments GTE 3)) { safetyCounter = arguments[3] + 1;
if (safetyCounter GTE 20) { return ""; }
if (fileExists(filePath)) {
return newID;
} else {
return getNextFile(fileDir, newID, safetyCounter);
}
}
</cfscript>
-----Original Message-----
From: Paul Giesenhagen [mailto:[EMAIL PROTECTED]
Sent: Monday, September 22, 2003 4:02 PM
To: CF-Talk
Subject: Previous/Next with Files
I have a directory that can have a small amount or possibly a large amount
of files (3,000) files.
Here would be an excerpt of the directory:
10330.cfm
10331.cfm
10336.cfm
10440.cfm
10441.cfm
10442.cfm
10445.cfm etc..
If someone is looking at 10440.cfm, I would like to have two links a link to
10336.cfm (previous) and a link to 10441.cfm (next).
I could do a CFdirectory and populate a list with all the file names and
then look to the before and after the selected file for the next/previous,
but that seems alittle intensive.
Does anyone have any suggestions on the most efficient way to get
next/previous files?
Any help would be appreciated!
Paul Giesenhagen
QuillDesign
]]>
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