Re: Validator rule question

Sun, 09 Apr 2006 17:30:31 -0700

The problem is that validwhen's expression syntax isn't powerful enough to describe date constraints. The best you could do with validwhen is to say 'if field X has a value, this field must have a value too' and then do the data validation server-side in the form-bean's validate() method.
The alternative is to create a custom validation rule, perhaps based on the existing date validation rule, that also does the inter-field checking. 

L.

Bart Busschots wrote:

Hi,


The example is in the archives of the mailing list no more than a few 
days ago. I'm not at work now so I don't have it in front of me to 
re-send it. The example does not exactly solve your identical problem 
but it does show how you can use validwhen to apply logic based on the 
value of another field in your form which is what you want to do. The 
actual logic can be pretty much anything, if it evaluates to true then 
the field is valid, if false it is not.


Bart.

Rivka Shisman wrote:

Hi Bart,

I still can't see how the "validwhen" solves my original problem.
Can you please attach your example of solving it with "validwhen"?

Thanks
Rivka


-----Original Message-----

From: Bart Busschots [mailto:[EMAIL PROTECTED] Sent: Sunday, April 09, 
2006 4:09 PM

To: Struts Users Mailing List
Subject: Re: Validator rule question

Rivka Shisman wrote:

 

Hi Quinn,

As much as I understand the "validwhen" is more like an enhanced
"requiredif", but I need that the "date" rule on my property be

    

checked

 

only when my other property has value "X". I don't think the

    

"validwhen"

 

can solve this.

Am I right?

      

No, the valid when is specifically designed to validate fields based 
on the values of other fields. I posted an example of that a few days 
ago to this list.


Bart.

 

Rivka

-----Original Message-----

From: Quinn Stone [mailto:[EMAIL PROTECTED] Sent: 
Saturday, April 08, 2006 8:06 PM

To: 'Struts Users Mailing List'
Subject: RE: Validator rule question

Rivka, look into the "validwhen" validation. I think that should do

    

the

 

trick.

Q
-----Original Message-----

From: Rivka Shisman [mailto:[EMAIL PROTECTED] Sent: Saturday, April 
08, 2006 9:24 AM

To: Struts Users Mailing List
Subject: Validator rule question


Hello Friends,


 


I have a DynaValidatorForm in which there 2 String properties: action
and student_birth_date.

I have a date validation like this:


 


            <field

                property=" student_birth_date"

                depends="required,date">

                    <arg key="Student birth date" resource="false"
position="0"/>

                    <arg key="MM/YY" resource="false" position="1"/>

                              <var>

                          <var-name>datePatternStrict</var-name>

                          <var-value>MM/yy</var-value>


                              </var>                  
            </field>



 

 


I need that the validation above to depend on the value of the

    

"action"

 

property in the Form (i.e. if action equals "create" or "update" then

    

do

 

the validation, else ignore it)


 


How can I do that?


 


Thanks

Rivka


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