CFChartDateFormat(date)
Last updated October 18, 2002
Version: 1 | Requires: ColdFusion 5 | Library: DateLib
Description:
Formats a date/time value for use on the y-axis in CFCHART. CFCHART expects date/time values in epoch seconds, adjusted to UTC offset, and multiplied by 1000. Very strange, but it works.
Return Values:
Returns a numeric value.
Example:
<CFCHARTSERIES TYPE="Scatter" SERIESLABEL="New Years Eve Party Hosts">
<CFCHARTDATA ITEM="Zack" VALUE="#cfchartDateFormat("12/31/1972")#">
<CFCHARTDATA ITEM="Becky" VALUE="#cfchartDateFormat("12/31/1996")#">
<CFCHARTDATA ITEM="Joe" VALUE="#cfchartDateFormat("12/31/1984")#">
<CFCHARTDATA ITEM="Lynda" VALUE="#cfchartDateFormat("12/31/2002")#">
</CFCHARTSERIES>
</CFCHART>
Parameters:
| Name | Description | Required |
|---|---|---|
| date | Date/time value you want formatted for CFCHART. | Yes |
Full UDF Source:
<cfscript>
/**
* Formats a date/time value for use on the y-axis in CFCHART.
*
* @param date Date/time value you want formatted for CFCHART. (Required)
* @return Returns a numeric value.
* @author Rob Brooks-Bilson (rbils@amkor.com)
* @version 1, October 18, 2002
*/
function cfchartDateFormat() {
var datetime = 0;
if (ArrayLen(Arguments) eq 0) {
datetime = Now();
}
else {
datetime = arguments[1];
}
return numberFormat(DateDiff("s", DateConvert("utc2Local", "January 1 1970 00:00"), datetime) * 1000);
}
</cfscript>
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