CF Custom Tag to generate dataset

Question

The tag below saves a lot of time waiting around for the xml
file to load..
<!---
File: makedataset.cfm
Description: Custom Tag to create a spry dataset from a Cold
Fusion query based on the example at
http://labs.adobe.com/wiki/index.php/Spry:JsDataset
Author: Edward Borland
Created: Monday, 19 June 2006
<cf_makedataset query="get_contacts"
datasetname="dsContacts" sortfield="firstname">
--->
<script>
<cfoutput>var #attributes.datasetname# = new
Spry.Data.DataSet({ sortOnLoad: "#attributes.sortfield#"
});</cfoutput>
// Create the rows of our data set.
var rowData = [<cfoutput
query="caller.#attributes.query#">
{<cfloop list="#columnlist#" index="thiscol"><cfif
listfind(columnlist,thiscol) GT 1>,</cfif>#thiscol#:
"#Evaluate(thiscol)#"</cfloop>}<cfif currentrow NEQ
recordcount>,</cfif></cfoutput>
// Set the data in the data set equal to the rows we just
created.
<cfoutput>#attributes.datasetname#.data = rowData;
#attributes.datasetname#.dataHash = [];
// Now run through each row and add a ds_RowID, and add the
row
// to our data hash. The key to the hash should be the
ds_RowID
// for the row.
for (var i = 0; i < rowData.length; i++)
rowData
["ds_RowID"] = "ROWID-" + i;
#attributes.datasetname#.dataHash[rowData["ds_RowID"]] =
rowData
#attributes.datasetname#.loadData();</cfoutput>
</script>

Answer 1

Below is an example of using the tag and the code it
replaced..
<!---
<script type="text/javascript">
<!--
var dsContacts = new
Spry.Data.XMLDataSet("issues.cfc?method=getContacts",
"contacts/contact");
-->
</script>
--->
<cfquery name="get_contacts"
datasource="#application.dsn#">
SELECT id,firstname,lastname,email,phone1,mobile,company
FROM contacts
ORDER BY Firstname, Lastname</cfquery>
<cf_makedataset query="get_contacts"
datasetname="dsContacts" sortfield="firstname">