CODEWITHSUNDEEP
jsfprimefacesjava-ee-6
mejas
mejas

Reputation: 297

After validation jsf fails to reset values

I have a jsf composite component implemented from two p:calendar components. The idea is when the first calendar is selected, the value of the second calendar need to be reset. There is a problem when the validation takes place, and the reset of the second calendar is not performed.

After reading posts I decided to use EditableValueHolder in my validator. I have custom validator: in which I added the following code:

@Override

public void validate(FacesContext fc, UIComponent uic, Object o) throws ValidatorException {
//....
resetValues(fc);
}

public void resetValues(FacesContext fc) {
    PartialViewContext partialViewContext = fc.getPartialViewContext();
    Collection<String> renderIds = partialViewContext.getRenderIds();
    UIComponent input;
    UIViewRoot viewRoot = fc.getViewRoot();
    for (String renderId : renderIds) {
        input = viewRoot.findComponent(renderId);
        if (input.isRendered() && input instanceof EditableValueHolder) {
            EditableValueHolder editableValueHolder = (EditableValueHolder) input;
            editableValueHolder.setSubmittedValue(null);
            editableValueHolder.setValue(null);
            editableValueHolder.setValid(true);
            editableValueHolder.setLocalValueSet(false);
        }
    }
}

After debug I can see that each code line is passed, but nothing is happening on jsf side.

Upvotes: 1

Views: 4128

Answers (1)

BalusC
BalusC

Reputation: 1108632

This is not the right moment to reset the values. They will be overridden anyway for the current component after the validate() method leaves and also for the second calendar once it get validated. You need to perform the reset somewhere after the update model values phase, preferably before the invoke action phase, so that you've chance to change the model value in an action(listener) method. You could use an ActionListener or a PhaseListener for this.

By the way, the JSF utility library OmniFaces has a reuseable solution for this in flavor of ResetInputAjaxActionListener.

Upvotes: 4

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