Question

I am using my own validation, but the view of the form (e.g. if a component is invalid) should be highlighted or customized within wicket…

So e.g.
I have my Wicket Form

<form wicket:id="inputForm">
         <p>
             <label for="Recipient">Recipient</label>
             <input wicket:id="Recipient" id="Recipient" type="text" size="40"/>
         </p>
         <p>
             <label for="Details">Details</label>
             <input wicket:id="Details" id="Details" type="text" size="40"/>
         </p>
</form>

Then I have my Form.java: Here I set the values of my Java Object “Invoice” and use onValidateModelObjects to override the wicket validation and use my own validation…
This method just calls a simple own created ValidatorObject that takes care of the validation…

public InvoiceForm() {
    ...

    Form<Invoice> form = new Form("inputForm", formModel) {
        /*
         * Validation takes place here
         */
        @Override
        public void onValidateModelObjects() {
            ValidationProcess vp = new ValidationProcess();
            vp.validate("Rules.js", r);
            msg = "";
            if (vp.getConstraintViolations().size() > 0) {

                for (String s : vp.getConstraintViolations()) {
                    msg = msg + s;
                }
            } else {
                msg = "no errors.";
            }
        }
    };

    //adding Textfields to the Form etc...

...
}

What I need: Above you can see that my errorMessages will be saved into the msg String! Now what I want is Wicket to take this String and apply it to the Wicket FeedBackMessage System or however…

1. I need to get the component that will be rendered at the moment…
2. I have to set the error Message of this component to my component…

how can I do that?

I guess I need to override some methods, but I dont know which ones and where…

Answer 1

I got it working with the following Code:

...
//Textfields or Form Components GO HERE...

        @Override
        public void onValidateModelObjects() {
            ValidationProcess vp = new ValidationProcess();
            vp.validate("Rules.js", r);
            msg = "";
            if (vp.getConstraintViolations().size() > 0) {

                for (String s : vp.getConstraintViolations()) {
                    if (s.contains(";")) {
                        String[] splitted = s.split(";");
                        String elementname = splitted[0];
                        String errorMessage = splitted[1];

                        if (elementname.equals("price")) {
                            //SET Error of Component 
                            price.error(elementname + " " + errorMessage + ". ");
                          } else if (elementname.equals("recipient")) {
                            recipient.error(elementname + " " + errorMessage);
                        }
                    }
                }
            }
        }

//Rest of the Code