isDate() unexpected behavior

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1

Hello!

I’ve just run into an issue with isDate(). Strange strings are interpreted
as valid dates. Please consider the following examples:

isDate(“32896-0002”);

Lucee 4.5.4.017 final : true
ACF 11: false

parseDateTime(“32896-0002”);

Lucee 4.5.4.017 final : {ts ‘32896-02-01 00:00:00’}
ACF 11 : 32896-0002 is an invalid date or time string

Is this an expected behavior in Lucee 4.5? I just preferred to ask here
first, before posting a bug.

Thanks!

2

isDate(“32896-0002”);

Lucee 5: TRUE

coldfusion 2016: NO

3

I’ll report a bug then.On Friday, January 27, 2017 at 12:59:40 AM UTC-3, Jacek wrote:

Hello!

I’ve just run into an issue with isDate(). Strange strings are interpreted
as valid dates. Please consider the following examples:

isDate(“32896-0002”);

Lucee 4.5.4.017 final : true
ACF 11: false

parseDateTime(“32896-0002”);

Lucee 4.5.4.017 final : {ts ‘32896-02-01 00:00:00’}
ACF 11 : 32896-0002 is an invalid date or time string

Is this an expected behavior in Lucee 4.5? I just preferred to ask here
first, before posting a bug.

Thanks!

4

Done. [LDEV-1185] - Lucee Tuesday, February 7, 2017 at 12:57:54 PM UTC-3, Jacek wrote:

I’ll report a bug then.

On Friday, January 27, 2017 at 12:59:40 AM UTC-3, Jacek wrote:

Hello!

I’ve just run into an issue with isDate(). Strange strings are
interpreted as valid dates. Please consider the following examples:

isDate(“32896-0002”);

Lucee 4.5.4.017 final : true
ACF 11: false

parseDateTime(“32896-0002”);

Lucee 4.5.4.017 final : {ts ‘32896-02-01 00:00:00’}
ACF 11 : 32896-0002 is an invalid date or time string

Is this an expected behavior in Lucee 4.5? I just preferred to ask here
first, before posting a bug.

Thanks!

5

Same issue here, testing finds ACF 11: valid, Lucee 5.3.7.47: invalid:—

<cfscript>

writedump(isValid('date','Friday, 23 April 2021'));

</cfscript>

Mind blowing. Investigating if it’s a LS/locale issue or is something more general.

UPDATE: For now, I’ve put together a workaround that others might find useful:

<cffunction name="isValidDateWithjQueryStyle" output="no">
	
	<!---
	Lucee and ACF dates validate differently:
	https://www.lucee.nl/post.cfm/the-horror-of-isdate-in-coldfusion-and-lucee
	http://www.neiland.net/blog/article/be-careful-with-coldfusion-date-validation/
	https://lucee.daemonite.io/t/isdate-unexpected-behavior/1417/5?u=harryf
	--->
	
	<cfargument name="supposedDate" required="true">
	
	<cfif isValid('date',ARGUMENTS.supposedDate)>
		
		<cfreturn true>

	<cfelseif datePatternMatch(ARGUMENTS.supposedDate, "dddd, d mmmm yyyy")>
	
		<cfreturn true>
		
	<cfelse>
	
		<cfreturn false>

	</cfif>
	
</cffunction> <!--- END isValidDateWithjQueryStyle --->

Uses this:—
https://cflib.org/udf/datePatternMatch

6

Please always state the exact Lucee version.

IsDate is horrible due to cfml, compatibility history.

When ever possible, always parse dates with a known mask, otherwise it’s pot luck

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