Locale Date Validation

[Richard Herbert]

How are people handling locale specific date validation on both the client and server-side?

I think I'm right in saying that the "defaultLocale" config setting only affects multiple languages support not regional date formats.

So if you have setLocale("en_GB") in your Application.cfc how can you get VT to discriminate between...

1/31/12

...and...

31/1/12

Thoughts, best practice and advice welcome.

Richard

[John Whish]

Hi Richard,

The validate date method just checks with IsValid(date, x) server side and the client side is similar. In fact on the client side, different browsers will accept different values as a valid date, which makes life tricky. 

In the past where I've needed to do this I've created by own validators. The JS will be something like (off the top of my head):

function(value, element) {

var exploded = value.split(/\-\./); // split string by delimiter(s)

var theDate = new Date(exploded[2], exploded[1]-1, exploded[0]);

return this.optional(element) || !/Invalid|NaN/.test(theDate);

}

Richard

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[Bob Silverberg]

Yeah, there's nothing built into VT to support this, but you could,
perhaps, create a "locale aware" validator which behaves differently
depending on what the current locale is (assuming you've called
setLocale()). It might be interesting to see if you can some up with
something that would do that.

Cheers,
Bob

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Bob Silverberg
www.silverwareconsulting.com

[Richard Herbert]

Yes, I was thinking about overwriting the VT server-side date validation functions (not skilled enough to do the client-side). Looking around the doc's I couldn't see anything about overriding validation types only creating new ones. Should I pursue that route with something like...

<rule type="dateLocale" />

Your thoughts and direction to other reading sources would be welcome.

Richard

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[Bob Silverberg]

You can override an existing one (I believe) simply by creating one of
your own in your own folder with the same name.

Bob

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