showAllMessages fix isModified access

[zewa666]

Hello, seems like the method showAllMessages, while trying to iterate over all validatables contains some objects not implementing isModified, which throws an undefined exception.

Dunno where these other objects come from, so my fix proposal would be to simply test against undefined.
E.g.

result.showAllMessages = function (show) { // thanks @heliosPortal
                    if (show === undefined) {//default to true
                        show = true;
                    }

                    // ensure we have latest changes
                    result();
                    ko.utils.arrayForEach(validatables(), function (observable) {
                        if(observable.isModified !== undefined)   // FIXES THE PROBLEM
                            observable.isModified(show);
                    });
                };

[sagasu]

Hi,

I had similar problem:
observable.isModified was resolved to either undefined or to true value. Due to that the code was failing. I ended up with a following code:

ko.utils.arrayForEach(validatables(), function (observable) {
    // for some reasons sometimes: observable.isModified = true
    // and code is trying to execute: true(show)
    // guard below is stopping this from happening. This is a knockout issue.
    if (!!observable && typeof (observable.isModified) == "function") {
        observable.isModified(show);
    }
});

[crissdev]

@sagasu It would be great if you could provide information about your view model. It will help a lot in correcting the problem. We can't just put some if statements without knowing the root cause.