Re: struts validator issues

Thu, 06 Apr 2006 13:57:50 -0700 

Hi Victor,
I don't have an explicit example but were I to have to do this I would use a validwhen validation that would look something like: 

<field property="blah" depends="validwhen">
 <arg position="0" key="blah.label"/>
 <var>
   <var-name>test</var-name>
   <var-value>((*this* < 10) or (*this* > 100))</var-value>
 </var>
</field>


You can find out more details on validwhen in the validator developers 
guide: http://struts.apache.org/struts-taglib/dev_validator.html


Regards,

Bart.

Victor Ying wrote:

Hi Bart,
   Thanks for the information, my main questions how
do you validate open interval like (0,10) in float
field.do you have example for that?
   Thanks
---victor

--- Bart Busschots <[EMAIL PROTECTED]> wrote:


  

Hi Victor,

The key to the validator is that you can use

multiple validations on the 
one filed so you can combine things like less than
and more than to give 
you an open range etc. Another very powerful
validation is 'valid when' 
which allows you to set up complex checks that
related to other fields 
in your input etc.


Below is and example of the validation I use on a

password changing form 
where the confirmation must obviously be equal to
the first entry of the 
new password:


  <form name="changePasswordForm">
   <field property="passwordCurrent"
depends="required">
    <arg0
key="login.changePassword.currentPassword.label"/>
   </field>
   <field property="passwordNew" depends="required,
minlength">
    <arg0
key="login.changePassword.newPassword.label"/>
    <arg1 name="minlength" key="${var:minlength}"
resource="false"/>

   

    

<var><var-name>minlength</var-name><var-value>6</var-value></var>

  

   </field>
   <field property="passwordNewVerify"
depends="validwhen">
    <arg0
key="login.changePassword.newPwsNotEqual"/>
    <var>
     <var-name>test</var-name>
     <var-value>(*this* == passwordNew)</var-value>
    </var>
   </field>
  </form>

You can also see in the above example that

passwordNew uses two 
validations, required and minlength.


Hope that is of some help,

Bart.

victor ying wrote:

    

Hi All,
     I am using struts 1.2.7 and related Apache

      

commons validator. I am using validation.xml(whose
rules are defined by validator-rules.xml

    

  I need your insight of following issues
  1.How do I validate open set data range,e,g

      

(1,10) where 1 and 10 are exclusive, current
intRange/floatRange valiation only support close set
data range validation where bounds are included?

    

  2.I find a limitation of common validator. i.e

      

if I enter +1000 in a field that has "integer"
validation turned on, the common validator will
complain about this field is NOT integer something
like that. Is this a bug?

    

  3.A more complicated scenario, suppose that I

      

need to validator two fields,say x and y, the data
range of y is dependent on x, e.g y must be the
range of [x,100], how do I make use of the common
validator to do that? I know I can write my
customized plugged in validator to do it, but does
validator provides a default way to do it?

    

  Many thanks in advance!
--Victor

                
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