use parameters in conditional command in zk framework

Question

I'm triying to use a conditional @command with an argument passed with Executions.createComponents, this is my java code:

Map data = new HashMap();
data.put("isFromHere", true);
modal = (Window) Executions.createComponents("root/to/window", null, data);
modal.doModal();

And in my zul page I'm trying to do this:

<button label="Save" onClick="@command(arg.isFromHere ? 'save' : 'not')" />

But every time arg.isFromHere is returning false, like the argument is not passed. But if I do this:

<button if="${arg.isFromHere}" label="Save" onClick="@command('save'" />

That does work fine! What means the arguments are getting to the zul page, but not working on conditional commands, Is there a way to make it work?

Answer 1

It has all to do with the lifecycle of the binder.
@Command and ${arg.xxx} are on different lifecycle.

Read this documentation and see your solution in it.

Solution for you :

VM :

private boolean fromHere;

@Init
public void init(@ExecutionArgParam("isFromHere") boolean fromHere){
    this.fromHere = fromHere;
}

public boolean isFromHere() {
    return fromHere;
}

zul :

<button label="Save" onClick="@command(vm.fromHere ? 'save' : 'not')" />