Is there a way to access the "Validation Message Holder" from within a view model?

asked 2013-12-05 12:42:41 +0800

georgefountopoulos
0 ● 1

updated 2013-12-06 12:48:56 +0800

For example, I am trying to do something like this:

<div apply="grailsBindComposer"
     viewModel="@id('vm') @init('testViewModel')"
     validationMessages="@id('vmsgs')">
    <label value="@load(vmsgs['key'])"/>
</div>

class TestViewModel {
    @Init
    void init() {
        vmsgs.put("key", "value")
    }
}

Looking at the documentation I could not find any example of how to access the ‘Validation Message Holder’ from within the view model.

Update: Thank you for your answers.

Here is how I implemented my requirement with ZKGrails 2.2.0 and ZK 6.5.2 EE:

<div apply="grailsBindComposer"
     viewModel="@id('vm') @init('testViewModel')"
     validationMessages="@id('vmsgs')">
    <label value="@load(vmsgs['key'])”/>
</div>

class TestViewModel {
    ValidationMessages vmsgs
    @Init
    void init(@ContextParam(ContextType.BINDER) Binder binder) {
        vmsgs = ((BinderCtrl) binder).validationMessages
        addInvalidMessage("key", "value")
    }
    void addInvalidMessage(String key, String message) {
        addInvalidMessages(key, [message].toArray(new String[1]))
    }
    void addInvalidMessages(String key, String[] messages) {
        vmsgs.addMessages(null, null, key, messages)
    }
}