Closing dialog doesnt work - ajax

Question

I'm using primefaces 5.0 and I have this situation:
<composite:implementation>
<p:dialog id="confirmDialog#{cc.attrs.someParam}"
rendered="#{cc.attrs.nextState.warnRequired}" severity="alert" resizable="false" modal="#{cc.attrs.modal}"
widgetVar="confirmation#{cc.attrs.someParam}">
<p:commandButton value="#{msg[cc.attrs.nextState.buttonKey]}" icon="#{nextStatus.icon}"
action="#{someActionCalled}"
update="#{cc.attrs.update}" process="#{cc.attrs.process}"
oncomplete="if (!args.validationFailed) { PF('confirmation#{cc.attrs.someParam}').hide(); }">
</p:commandButton>
<p:commandButton id="decline" value="#{msg['action.cancel']}" icon="ui-icon ui-icon-cancel"
onclick="PF('confirmation#{cc.attrs.someParam}').hide()" />
</p:dialog>
</composite:implementation>
When i click "decline" / cancel button, confirmDialog is closed / hides. Thats ok.
Obviusly confirmation#{cc.attrs.someParam} can find widgetVar and closes this dialog.
But when i click first button to confirm and take some action in back bean i get :
Widget for var 'confirmationSomeParam' not available!
primef...mefaces (line 1)
detailed error: TypeError: PF(...) is null
{cc.attrs.someParam}
is passed into component. Its evaluated clean and values are there ( obviusly because second button can close dialog.
So its very strange that first button cant find this dialog widgetVar and second one can ?

Answer 1

So i had time again to check this critical part of my application and im posting here so someone in future maybe will find this usefull :)
I have added p:remoteCommand under both buttons in code:
<p:remoteCommand name="somethingToDo" update="#{cc.attrs.update}" />
and in first button i have removed update param.
Why ? Because as error says, it could not find some dialogId ( in this example 'confirmation332m' ) and because of that update param, which was updating whole form, dialog was removed / updated.
So i moved update param from button to remote command and in
onComplete i just call somethingToDo(); after all validation is checked.
Maybe its not best solution but for now it works ;)
PF forum link ( for future problems ): http://forum.primefaces.org/viewtopic.php?f=3&t=37851