Ah that's even better, thank you grrigri, you've made my life a little
easier :-)
Tim
On Mar 28, 10:40 pm, grigri <[EMAIL PROTECTED]> wrote:
> All validation entries have an `allowEmpty` parameter that says
> whether the field must be filled in or not. An empty field will *not*
> go through the validation rule itself and will be validated or failed
> depending on the `allowEmpty` parameter (not to be confused with the
> `required` parameter, which controls whether the field must be
> *present* in the data).
>
> To validate a decimal number you can use a callback, like you have, or
> a regular expression. For example:
>
> var $validate = array(
> 'field' => array(
> 'allowEmpty' => true,
> 'rule' => '/^[0-9]*\\.?[0-9]+$/',
> 'message' => 'This must be blank or a positive decimal number'
> )
> );
>
> You could use a different regular expression to allow negative
> numbers, enforce limits on the fraction digits, or allow scientific
> notation as well.
>
> For example, if you wanted a positive number with maximum 2 digits
> after the decimal point then you'd use something like:
>
> '/^[0-9]+(\\.[0-9]{,2})?$/'
>
> On Mar 28, 8:12 am, Tim W <[EMAIL PROTECTED]> wrote:
>
> > In case anyone else wants to know how i've done it, it's as simple as
> > this
>
> > Model
>
> > var $validate = array(
> > 'fieldName' => array('integer_optional' => array('rule' =>
> > array('optionalInteger', 'fieldName')))
> > );
> > // NB: integer_optional is the key to look up the error message
>
> > function optionalInteger($data, $fieldName) {
> > if (strlen($data[$fieldName]) > 0) {
> > return is_numeric($data);
> > }
>
> > return true;
>
> > }
>
> > I couldn't work out how to call an existing validation method (given
> > the 2 minutes I spent on it) so I just wrote my own since it was
> > trivial and quicker. I'm still interested to hear a better way to do
> > this, if one exists :)
>
> > Tim
>
> > On Mar 28, 8:56 pm, Tim W <[EMAIL PROTECTED]> wrote:
>
> > > Hi all,
>
> > > I have some data that's optional, but if it's filled in it must be a
> > > decimal. Is there an easy way to do this with 1.2 validation? My
> > > current though is that I might create a custom validation rule, and
> > > from their if the field isn't blank then send it through to the built
> > > in validation code.
>
> > > Thanks
>
> > > Tim
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