On 02.10.2007, at 11:29, Catarina Vieira Simoes wrote:
I'd like to use the ERXValidationFactory class to validate forms
but I couldn't quite figure how to catch the possible thrown
validation exceptions in the action associated with the form.
Could you please help me with some informations (and best
practices) about how the class works and how to use it to properly
validate a generic form.
First of all, I wouldn't start with looking at ERXValidationFactory,
but with standard validation methods in WebObjects.
Step 1:
Implement
public void validationFailedWithException (
java.lang.Throwable exception,
java.lang.Object value,
java.lang.String keyPath) {
in your component, collect the errors from there in an array,
surround your saveChanges call with a try catch block and show the
list of errors on reload.
If that works, you can start digging deeper. In your EOs you can
throw normal EOValidation.ValidationException objects, you should
look at the strings file in ERExtensions for the messages and so on.
A really good help, whether you use Wonder or not, is Chuck's book on
that topic.
cug
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