Coldfusion struct array error

Question

I am trying to build the array to store the report column names, but I got the following error: You have attempted to dereference a scalar variable of type class coldfusion.runtime. Array as a structure with members.

My code is:

<cfscript>
        currentAssetNum  = 0;
        headerLabels     = "";
        headerUnderlines = "";
        reportContent    = "";

        columns = eqInventoryHelper.getPreformattedColumnCharacteristics(showComponents = variables.showComponents);

        // Get an array of the columns in the order they should be displayed.
        columnOrder = StructSort(columns, "numeric", "asc", "sortOrder");

        for (columnName in columnOrder) {
            //for (columnIndex=1; columnIndex <= StructCount(columns); columnIndex++){                          
            if (columns[columnName].justify == "left") {                        
                headerLabels &= LJustify(columns[columnName].label, columns[columnName].length) & " ";
            } else {                    
                headerLabels &= RJustify(columns[columnName].label, columns[columnName].length) & " ";
            }
            headerUnderlines &= RepeatString( "-", columns[columnName].length ) & " ";
        }       
        reportHeaders = headerLabels & variables.newLine & headerUnderlines;

    </cfscript> 

eqInventoryHelper.cfc:

<cffunction name="getPreformattedColumnCharacteristics" output="false">
    <cfargument name="showComponents" required="true"/>
    <cfscript>
        var columnSort = 1;         
        var columns = {
            asset_num = {label = "KFS Asset Number", length = 16, justify = "left", sortOrder = columnSort++},
            manufacturer_name = {label = "Manufacturer", length = 30, justify = "left", sortOrder = columnSort++},
            manufacturer_model_num = {label = "Model", length = 30, justify = "left", sortOrder = columnSort++},
            serial_num = {label = "Serial Number", length = 30, justify = "left", sortOrder = columnSort++},
            condition_code = {label = "Cond CD", length = 8, justify = "left", sortOrder = columnSort++},
            owner_chart = {label = "Owner", length = 6, justify = "left", sortOrder = columnSort++},
            owner_acct = {label = "Account", length = 10, justify = "left", sortOrder = columnSort++},
            cur_uc_fnd = {label = "UC Fund", length = 8, justify = "left", sortOrder = columnSort++},
            org_cd = {label = "Org Code", length = 10, justify = "left", sortOrder = columnSort++},
            custodial_code = {label = "Custodial Code", length = 15, justify = "left", sortOrder = columnSort++},
            pi_name = {label = "Principal Investigator", length = 30, justify = "left", sortOrder = columnSort++},
            uc_acquisition_code = {label = "Acq. Type", length = 10, justify = "left", sortOrder = columnSort++},
            received_date = {label = "Received Date", length = 14, justify = "right", sortOrder = columnSort++},
            asset_desc = {label = "Asset Description", length = 51, justify = "left", sortOrder = columnSort++},
            ucop_tag_num = {label = "UCOP Tag Number", length = 16, justify = "left", sortOrder = columnSort++},
            asset_location = {label = "Asset Location", length = 60, justify = "left", sortOrder = columnSort++},
            asset_type = {label = "Asset Type", length = 11, justify = "left", sortOrder = columnSort++},
            is_uc_title = {label = "UCD Title", length = 14, justify = "left", sortOrder = columnSort++},
            total_cost = {label = "Total Cost", length = 12, justify = "right", sortOrder = columnSort++},
            useful_life = {label = "Useful Life", length = 12, justify = "right", sortOrder = columnSort++}
        };

        // If showing components, we tack the component specific columns to the main columns array.
        if (arguments.showComponents) {
            columns.component_num = {label = "Component Number", length = 18, justify = "left", sortOrder = columnSort++};
            columns.component_desc = {label = "Component Description", length = 45, justify = "left", sortOrder = columnSort++};
            columns.component_manufacturer_name = {label = "Manufacturer Name", length = 18, justify = "left", sortOrder = columnSort++};
            columns.component_model_num = {label = "Manufacturer Model Number", length = 26, justify = "left", sortOrder = columnSort++};
            columns.component_serial_num = {label = "Serial Number", length = 20, justify = "left", sortOrder = columnSort++};
            columns.component_po_number = {label = "PO Number", length = 12, justify = "right", sortOrder = columnSort++};
        }
        return columns;
    </cfscript>
</cffunction>

Thank you.

Answer 1

I have a strong suspicion you are using a version of ColdFusion that predates the for(index in array) syntax. This was only added in ColdFusion 9.0.1.

So if you are running 9.0, it will not work, and it will assume you mean to be iterating over a struct.