On Sun, Mar 9, 2008 at 12:31 PM, Deane <[EMAIL PROTECTED]> wrote:
>
> This may be more of a regex question, but I can't seem to get some
> validation working inside Cake that seems to work fine outside of
> Cake.
>
> A field needs to either be (1) a valid number, or (2) nothing. So, in
> effect, "You don't have to enter this, but if you do, it better be a
> number."
>
> This...
>
> /[0-9]+|/
>
> ...doesn't work. To me, that regex says, "Any sequence of numeric
> values, or the empty string."
>
> What does it say to you?
One--not zero--or more digits. Try /[0-9]?/
> On the same note, I'm trying to the same thing with a date. This
> doesn't work either:
>
> /([0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9])|/
>
> Any ideas?
rule => 'date'
However, your regex can also be made better by:
/[0-9]{4}-[0-9]{1,2}-[0-9]{1,2}/
or, if you don't require leading zeroes:
/[12][0-9]{3}-0[1-9]|1[012]-0[1-9]|[12][0-9]|3[01]/
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