Re: Conditional Validation

[Jeff Kyser]

Seems like using a one line JavaScript to set a hidden field
based on the button that was clicked, and then using the
requiredif validation rules in conjunction with a  mask for
each of your fields (using regular expression) should work.,
-jeff

On Tuesday, September 23, 2003, at 08:28  AM, Fenderbosch, Eric wrote:

I've been given a page design that has 4 text boxes and 4 submit 
buttons. I only need to validate the text box associated with the 
submit button that was clicked. required and requiredIf don't seem to 
be what I'm looking for.  Right now, my action form's validate looks 
like this:
public ActionErrors validate(ActionMapping mapping, HttpServletRequest 
request) {
    ActionErrors errors = new ActionErrors();
    String action = request.getParameter("method");
    if (action.equals("queryByDate")) {
        validateDate(errors);
    } else if (action.equals("queryByPro")) {
        validatePro(errors);
    } else if (action.equals("queryByBol")) {
        validateBol(errors);
    } else if (action.equals("queryByAuth")) {
        validateAuth(errors);
    } else if (action.equals("queryByPart")) {
        validatePart(errors);
    } else {
        errors.add("unknown query method", new 
ActionError("query_method.unknown"));
    }
    return errors;
}

And each of the private validate* methods are similar to this:

private void validatePro(ActionErrors errors) {
    if (!validator.match(PRO_VAL_REG_EXP, proNumber)) {
        errors.add("proNumber", new ActionError("proNumber.format"));
    }
}
But I'd like a more elegant solution. Especially, I'd like to be able 
to specify the regular expression used to validate each field outside 
of the class. In order to do that, I think I need to use 
DynaValidatorActionForm, but I'm not sure how to setup the 
"only-validate-if-this-submit-clicked" logic.

Any suggestions would be appreciated.

Thanks.

Eric

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