Thanks you very much !!!
Yes your advice to use:
<cfif
structKeyExists(aTDWDoc.atdw_data_results.product_distribution[i].product_re
cord,'max_star_rating')>
<!--- Do your stuff to the max star rating key in here --->
</cfif>
work a treat
Kind Regards
Claude Raiola (Director)
AustralianAccommodation.com Pty. Ltd.
Mobile: 0414 228 948
Fax: 07 3319 6444
Websites:
www.AustralianAccommodation.com
<http://www.australianaccommodation.com/>
www.AccommodationNewZealand.com
<http://www.accommodationnewzealand.com/>
www.HospitalityPurchasing.net <http://www.hospitalitypurchasing.net/>
<mailto:[EMAIL PROTECTED]>
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Stephen
Milligan
Sent: Saturday, 31 January 2004 11:30 AM
To: CFAussie Mailing List
Subject: [cfaussie] RE: How To Determining if specific Variable Arrays
exist
In short...
No!
There isn't any easier or shorter way to determine if an array element
exists.
If you try to access an undefined array element using any native ColdFusion
function an error will be thrown.
Having dealt with the ATDW feeds in the past, I know how much *fun* they can
be to deal with, but having read your original post again, my guess is that
what you want is not to test if an array element exists, but whether a key
in a structure nested in an array exists.
If that's the case then it's slightly simpler:
<cfif
structKeyExists(aTDWDoc.atdw_data_results.product_distribution[i].product_re
cord,'max_star_rating')>
<!--- Do your stuff to the max star rating key in here --->
</cfif>
If you really want to know if element i exists in
ATDWDOc.atdw_data_results.product_distribution then you have to use the code
I posted earlier.
Spike
________________________________
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Claude Raiola
Sent: Friday, January 30, 2004 4:49 PM
To: CFAussie Mailing List
Subject: [cfaussie] RE: How To Determining if specific Variable Arrays exist
Thanks for all that assistance however is there some alternative way of
determining if a array element exists as I am trying to use this as part of
my xml input feed where the web service provider drops off an element if the
record does not have a value within that element
eg lets take a record for an accommodation house if accommodation house 1
provides their star rating then <star_rating>4</star_rating> is included in
the xml where as if the accommodation house has not provided a value for
star rating then the web services xml document does not even have the
<star_rating></star_rating> element in the xml for that record hence the
need to test the existence for every element I want to display the output
for with each record being passes surely there is an easier and quicker way
to determine if the element exists. ??
Kind Regards
Claude Raiola (Director)
AustralianAccommodation.com Pty. Ltd.
Mobile: 0414 228 948
Fax: 07 3319 6444
Websites:
www.AustralianAccommodation.com
<http://www.australianaccommodation.com/>
www.AccommodationNewZealand.com
<http://www.accommodationnewzealand.com/>
www.HospitalityPurchasing.net <http://www.hospitalitypurchasing.net/>
<mailto:[EMAIL PROTECTED]>
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Stephen
Milligan
Sent: Saturday, 31 January 2004 10:33 AM
To: CFAussie Mailing List
Subject: [cfaussie] RE: How To Determining if specific Variable
Arrays exist
Not forgetting of course to replace the *ahem* deliberate line with
the re-declared local variable just after the opening <cftry> tag with this:
<cfset tmp = arguments.array[arguments.element]>
Spike
________________________________
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Stephen
Milligan
Sent: Friday, January 30, 2004 4:18 PM
To: CFAussie Mailing List
Subject: [cfaussie] RE: How To Determining if specific Variable
Arrays exist
The only reliable way to test if an array element exists is to put a
try/catch block around it:
<cffunction name="isArrayElementDefined">
<cfargument name="array" type="array" required="true">
<cfargument name="element" type="numeric" required="true">
<cfset var tmp = "">
<cftry>
<cfset var tmp = arguments.array[arguments.element]>
<cfcatch>
<cfreturn false>
</cfcatch>
</cftry>
<cfreturn true>
</cffunction>
<cfset myArray = arrayNew(1)>
<cfset myArray[1] = "foo">
<cfset myArray[4] = "bar">
<cfoutput>
<cfloop from="1" to="#arrayLen(myArray)#" index="i">
<br>
<br>
<cfif isArrayElementDefined(myArray,i)>
Element #i# exists.
<cfelse>
Element #i# does not exist.
</cfif>
</cfloop>
</cfoutput>
Spike
________________________________
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Claude Raiola
Sent: Friday, January 30, 2004 4:06 PM
To: CFAussie Mailing List
Subject: [cfaussie] RE: How To Determining if specific Variable
Arrays exist
when I use the arraylen() function eg:
<cfif
ArrayLen(aTDWDoc.atdw_data_results.product_distribution.product_record.max_s
tar_rating.XmlText) LTE i>
generates the following error message
(I need to include "product_record.max_star_rating" ) as that is the
specific array element I am testing for to see whether it exists hence the
reason for initially trying to use isdefined() function
Object of type class java.lang.String cannot be used as an array
The error occurred in
D:\inetpub\webhost\4301\www\aus\ATDW\query_products_26_01_04.cfm: line 60
58 : <cfset prodn = QuerySetCell(myquery,
"product_description",
aTDWDoc.atdw_data_results.product_distribution[i].product_record.product_des
cription.XmlText, i)>
59 : </cfif>
60 : <cfif
ArrayLen(aTDWDoc.atdw_data_results.product_distribution.product_record.max_s
tar_rating.XmlText) LTE i>
61 : <cfset prodn = QuerySetCell(myquery, "star_rating",
aTDWDoc.atdw_data_results.product_distribution[i].product_record.max_star_ra
ting.XmlText, i)>
62 : </cfif>
Kind Regards
Claude Raiola (Director)
AustralianAccommodation.com Pty. Ltd.
Mobile: 0414 228 948
Fax: 07 3319 6444
Websites:
www.AustralianAccommodation.com
<http://www.australianaccommodation.com/>
www.AccommodationNewZealand.com
<http://www.accommodationnewzealand.com/>
www.HospitalityPurchasing.net
<http://www.hospitalitypurchasing.net/>
<mailto:[EMAIL PROTECTED]>
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Steve Onnis
Sent: Saturday, 31 January 2004 7:50 AM
To: CFAussie Mailing List
Subject: [cfaussie] RE: How To Determining if specific
Variable Arrays exist
You cant use isDefined() for arrays
You could try using ArrayLen
so
<cfif
ArrayLen(aTDWDoc.atdw_data_results.product_distribution) LTE i>
<cfset prodn = QuerySetCell(myquery, "star_rating",
aTDWDoc.atdw_data_results.product_distribution[i].product_record.max_star_ra
ting.XmlText, i)>
</cfif>
That might do you
Steve
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Claude Raiola
Sent: Saturday, 31 January 2004 4:47 AM
To: CFAussie Mailing List
Subject: [cfaussie] How To Determining if specific Variable
Arrays exist
I am trying to use the isdefined function to
determine with a variable within an array exists. The code is in bedded
within the cfloop with index=I
when using the syntax in line 60 below the following
error message occurs
wondering what is the correct syntax in order to be
able to determine whether specific variables within the are defined.
I look forward to your input
Parameter 1 of function IsDefined, which is now
"aTDWDoc.atdw_data_results.product_distribution[i].product_record.max_s
tar_rating.XmlText", must be a syntactically valid variable name.
The error occurred in
D:\inetpub\webhost\4301\www\aus\ATDW\query_products_26_01_04.cfm: line 60
60 : <cfif
isdefined('aTDWDoc.atdw_data_results.product_distribution[i].product_record.
max_star_rating.XmlText')>
61 : <cfset prodn = QuerySetCell(myquery,
"star_rating",
aTDWDoc.atdw_data_results.product_distribution[i].product_record.max_star_ra
ting.XmlText, i)>
62 : </cfif>
Kind Regards
Claude Raiola (Director)
AustralianAccommodation.com Pty. Ltd.
Mobile: 0414 228 948
Fax: 07 3319 6444
Websites:
www.AustralianAccommodation.com
<http://www.australianaccommodation.com/>
www.AccommodationNewZealand.com
<http://www.accommodationnewzealand.com/>
www.HospitalityPurchasing.net
<http://www.hospitalitypurchasing.net/>
<mailto:[EMAIL PROTECTED]>
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