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Try this
<CFIF IsDefined("ATTRIBUTES.Request_time") AND Trim(ATTRIBUTES.Request_time) NEQ "")
Request_time is defined
<CFELSE>
Request_time is not defined
</CFIF>
This called shortcut validation. Trim(ATTRIBUTES.Request_time) NEQ "" will validate
only if the first one is true.
Tinh Tran
Event411.com
Ben Lowndes wrote:
> Hello,
>
> I've just been trying to figure out the most efficent way to check for a
> passed (form or url) variables pesence and value. The code I've been using
> is:
>
> <CFIF (IsDefined("ATTRIBUTES.Request_time") IS "No") OR
> (Trim(ATTRIBUTES.Request_time) IS "")>
> Request_time is not defined
> <CFELSE>
> Request_time is defined
> </CFIF>
>
> But is this the best way, it must be a common problem. I also thought about
> using :
>
> <CFPARAM NAME="ATTRIBUTES.Request_Time" DEFAULT="0">
> <CFIF Trim(RequestTime) IS "0">
> Request_time is not defined
> <CFELSE>
> Request_time is defined
> </CFIF>
>
> but that doesn't work as it doesn't apply the value 0 if Request_time is
> passed but not defined... So is the first method the best?
>
> Thanks
> Ben
>
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<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
Try this
<br><CFIF IsDefined("ATTRIBUTES.Request_time") AND Trim(ATTRIBUTES.Request_time)
NEQ "")
<br> Request_time is defined
<br><CFELSE>
<br> Request_time is not defined
<br></CFIF>
<br>This called shortcut validation. Trim(ATTRIBUTES.Request_time)
NEQ "" will validate only if the first one is true.
<p>Tinh Tran
<br>Event411.com
<p>Ben Lowndes wrote:
<blockquote TYPE=CITE>Hello,
<p>I've just been trying to figure out the most efficent way to check for
a
<br>passed (form or url) variables pesence and value. The code I've been
using
<br>is:
<p><CFIF (IsDefined("ATTRIBUTES.Request_time") IS "No") OR
<br>(Trim(ATTRIBUTES.Request_time) IS "")>
<br>Request_time is not defined
<br><CFELSE>
<br>Request_time is defined
<br></CFIF>
<p>But is this the best way, it must be a common problem. I also thought
about
<br>using :
<p><CFPARAM NAME="ATTRIBUTES.Request_Time" DEFAULT="0">
<br><CFIF Trim(RequestTime) IS "0">
<br>Request_time is not defined
<br><CFELSE>
<br>Request_time is defined
<br></CFIF>
<p>but that doesn't work as it doesn't apply the value 0 if Request_time
is
<br>passed but not defined... So is the first method the best?
<p>Thanks
<br>Ben
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