Question

This has to be a Jquery question. The following code is returning zero. When I test/debug, I can say without a doubt that the cffunction is generating the number 18.
The success alert shows “Dupe Group-2 count=0”. The Firebug response shows;
{“COLUMNS”:[“DUPECOUNTER”],”DATA”:[[“0”]]}

  if ($(e.target).is(":checked")) {
    $firstTD = $(this).parent().siblings().first();
    SaveDupeGroup = $firstTD.text();
        $.ajax({
            type: 'GET',
            url: 'cfc/basic.cfc?method=CheckDupeGroup&returnformat=json',
        dataType: 'json',
        data: 'dupegrouptocheck=' + $firstTD.text(),
            error: function (xhr, textStatus, errorThrown) {
            // show error 
            alert(errorThrown); 
            },
            success: function (response, textStatus, jqXHR) {
            alert('Dupe Group-' + SaveDupeGroup + ' count=' + response.DATA[0]);
            ReInitAnswer = confirm('All of the names in this group have been checked.\nDo you want to remove them from the list?');
        if (ReInitAnswer) {
              alert('continued'); 
                } else {
              alert('canceled');
              return false;
                }
        }
            });
        }

<cffunction name="CheckDupeGroup" output="false" access="remote">
<cfargument name="DupeGroupNumber" required="True" type="string" default="" />
<cfset var qResults = "" />
<cfquery name="qResults" datasource="#request.dsn#">
SELECT COUNT(id) AS DupeCounter 
FROM Temp_Duplicate_Individuals_AddressZipState 
Where dupe_group_number = #val(arguments.DupeGroupNumber)# and isnull(not_dupe_flag,'False') = 'False' 
</cfquery>
<cfreturn (qResults) />
</cffunction>

Answer 1

You’re passing data: 'dupegrouptocheck=' + $firstTD.text(), but the argument name in the function is DupeGroupNumber. Change dupegrouptocheck to DupeGroupNumber.

The reason this isn’t throwing a required argument error is because you have a default value (an empty string) for the argument, and CF will use the default value rather than throwing an error for not passing in the argument.

So, you are essentially running:

SELECT COUNT(id) AS DupeCounter 
FROM Temp_Duplicate_Individuals_AddressZipState 
Where dupe_group_number = "" and isnull(not_dupe_flag,'False') = 'False' 

Because you don’t have a dupe_group_number that equals "", the query is correctly returning a count of 0.