How can I validate a unique constraint with Wicket? Because only the value of an input field is passed to onValidate(IValidatable validatable), there is no chance to check if this value belongs to a specific object to update or if it would violate a unique constraint when creating a new object. onValidate would need another paremeter for the related object.
I see two possibilities: a) Use a form validator and get the related model object from the form. b) Pass the related object to the constructor of the Validator. I'm not sure, if the validator would be recreated any time the model object changes. I would prefer a validator tied to the field and not to the form, because that would be more intuitive. Another idea is to use existing JPA annotations. @Column(unique=true) is already there but not used for validation (outside the database). Perhaps there is a way to use this annotation. I really like the domain level validation of Grails: http://grails.org/doc/1.1/guide/7.%20Validation.html How would you validate a unique constraint with wicket? Thanks in advance Christian --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
