Looping Over CFFILE Uploads

Hi All,

I have a multi-page form that asks the user how many image files they want to upload on the first page. The second page then loops to create a form with as many file upload fields as they need. The third page should process the files individually by looping over the form fieldnames; however, I'm having trouble with the syntax. I've been able to do this with non-file variables, but I'm stuck here.

*******************************
Quotations around the EVALUATE function ...IsDefined("Evaluate(... returns the following error:
*******************************

Error Occurred While Processing Request
Invalid CFML construct found on line 25 at column 28.
ColdFusion was looking at the following text:
ImageFile

The CFML compiler was processing:
an expression beginning with "IsDefined", on line 25, column 7.This message is usually caused by a problem in the expressions structure.
a cfif tag beginning on line 25, column 2.
a cfif tag beginning on line 25, column 2.

*******************************
No quotations returns the temp variable for the file and also creates an error:
*******************************

Error Occurred While Processing Request
Parameter 1 of function IsDefined, which is now "C:\CFusionMX\runtime\servers\default\SERVER-INF\temp\wwwroot-tmp\neotmp48611.tmp", must be a syntactically valid variable name.

The Error Occurred in C:\CFusionMX\wwwroot\ihs\submissions\imageaction.cfm: line 25
23 : <!--- Begin looping through the image files and process them for upload --->
24 : <cfloop from="1" to="#FORM.NumRecords#" index="ThisRow">
25 : <cfif IsDefined(Evaluate("ImageFile" & ThisRow))


Thanks!
Matt

<!--- Begin looping through the image files and process them for upload --->
<cfloop from="1" to="#FORM.NumRecords#" index="ThisRow">
<cfif IsDefined(Evaluate("ImageFile" & ThisRow)) AND Evaluate("ImageFile" & ThisRow) IS NOT "">
<cflock scope="session" timeout="50" throwontimeout="yes" type="exclusive">
<cftry>
<cffile action="upload" filefield="#Evaluate("ImageFile" & ThisRow)#" destination="C:\websites\uecijv\imageprocess\" nameconflict="makeunique">
<cfif CFFILE.FileSize GT 200000>
<cfthrow type="SizeError" message="Your image file exceeds the limit. It may not be larger than 200K">
</cfif>
<cfif CFFILE.ClientFileExt NEQ "gif" AND CFFILE.ClientFileExt NEQ "jpg">
<cfthrow type="ExtError" message="Your image file is not the correct type. You may only upload GIF or JPG files">
</cfif>
<cfcatch type="SizeError">
<cflocation url="sizeerror.cfm">
</cfcatch>
<cfcatch type="ExtError">
<cflocation url="typeerror.cfm">
</cfcatch>
</cftry>
<cfif CFFILE.ServerFileExt EQ "jpg">
<CFX_IMAGE
Action="RESIZE"
FILE="C:\websites\uecijv\imageprocess\#CFFILE.ServerFile#"
OUTPUT="C:\websites\uecijv\images\properties\large\#CFFILE.ServerFile#"
WIDTH="480"
QUALITY="75"
>
<CFX_IMAGE
Action="RESIZE"
FILE="C:\websites\uecijv\imageprocess\#CFFILE.ServerFile#"
OUTPUT="C:\websites\uecijv\images\properties\small\#CFFILE.ServerFile#"
WIDTH="160"
HEIGHT="120"
QUALITY="75"
>
<cfelse>
<CFX_IMAGE
Action="RESIZE"
FILE="C:\websites\uecijv\imageprocess\#CFFILE.ServerFile#"
OUTPUT="C:\websites\uecijv\images\properties\large\#CFFILE.ServerFile#"
WIDTH="480"
>
<CFX_IMAGE
Action="RESIZE"
FILE="C:\websites\uecijv\imageprocess\#CFFILE.ServerFile#"
OUTPUT="C:\websites\uecijv\images\properties\small\#CFFILE.ServerFile#"
WIDTH="160"
HEIGHT="120"
>
</cfif>
</cflock>
<cfquery datasource="#IHSDSN#" username="#IHSAppUser#" password="#IHSAppPass#">
UPDATE images SET Caption='#Evaluate("Caption" & ThisRow)#',
ImageFile='#CFFILE.ServerFile#'
WHERE image_id='#Evaluate("update" & ThisRow)#'
</cfquery>
<!--- If they left the field blank, delete the placeholder --->
<cfelseif NOT IsDefined(Evaluate("ImageFile" & ThisRow)) OR Evaluate("ImageFile" & ThisRow) IS "">
<cfquery name="qremoveentry" datasource="#IHSDSN#" username="#IHSAppUser#" password="#IHSAppPass#">
DELETE FROM images WHERE image_id='#Evaluate("update" & ThisRow)#'
</cfquery>
</cfif>
</cfloop>

If you are sending the form fields to CF with names like "ImageFile1", "ImageFile2", etc., then I don't think you need to use evaluate(). You should just be able to do:

<cfif isDefined( 'ImageFile#thisRow#' ) >...

you could also do:

<cfif structKeyExists( 'form', 'ImageFile#thisRow#' )>...

For both of those alternatives, the following error is returned:


Error Occurred While Processing Request
Invalid CFML construct found on line 25 at column 68.
ColdFusion was looking at the following text:
#

The CFML compiler was processing:

a cfif tag beginning on line 25, column 2.
a cfif tag beginning on line 25, column 2.


The Error Occurred in C:\CFusionMX\wwwroot\ihs\submissions\imageaction.cfm: line 25

23 : <!--- Begin looping through the image files and process them for upload --->
24 : <cfloop from="1" to="#FORM.NumRecords#" index="ThisRow">
25 : <cfif structKeyExists( 'FORM', 'ImageFile#ThisRow#' ) AND ImageFile#ThisRow# IS NOT "">
26 : <cflock scope="session" timeout="50" throwontimeout="yes" type="exclusive">
27 : <cftry>

I shouldn't have put quotes around the 'form' scope in the structKeyExists() call, but the isDefined() one should work. Here are working examples of both approaches:

Thanks! That worked. I was able to use the StructFind function to check for NULL values:

StructFind(FORM, 'ImageFile#ThisRow#') IS NOT ""