validwhen for double value comparision

[fea jabi <zy...@hotmail.com>]

Need to check if the value entered is greater than zero.

Tried the below using the validwhen

<field property="payment" depends="required,validwhen">
            	<msg name="required" key="error.required"/>
                <msg name="validwhen" key="error.gtzero"/>
                <var>
                    <var-name>test</var-name>
                    <var-value>(*this* > "0.00")</var-value>
                </var>
</field>



validation seams to be working right when entered 0,0.00,any string, any 
negative number all give validation error. which is exactly what I wanted. 
Is this really doing the validation right i.e checking if the value entered 
is greater than zero?


Is this the right way to do? or do I have to create the custom validator to 
do double value comparision?

Thanks.

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Re: validwhen for double value comparision

[Laurie Harper <la...@holoweb.net>]

fea jabi wrote:
> Need to check if the value entered is greater than zero.
> 
> Tried the below using the validwhen
> 
> <field property="payment" depends="required,validwhen">
>                <msg name="required" key="error.required"/>
>                <msg name="validwhen" key="error.gtzero"/>
>                <var>
>                    <var-name>test</var-name>
>                    <var-value>(*this* > "0.00")</var-value>
>                </var>
> </field>
> 
> validation seams to be working right when entered 0,0.00,any string, any 
> negative number all give validation error. which is exactly what I 
> wanted. Is this really doing the validation right i.e checking if the 
> value entered is greater than zero?
> 
> Is this the right way to do? or do I have to create the custom validator 
> to do double value comparision?

Well if what you have is giving you the right behaviour, it doesn't seem 
like there's much need to write a custom validation rule :-) That said, 
you may want to look at the provided float and double rules and/or the 
floatRange and doubleRange rules. See the Validator Guide [1] for details.

L.

[1] http://struts.apache.org/1.2.9/userGuide/dev_validator.html


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