Counting knockout validation error messages in a public function

Question

I have a jsFiddle here:

There is an array in knockout viewmodel and every array element raises an error. Is there a way to count number of error messages for the whole view model and access it by a public javascript function?

The idea here is to count total errors of the viewmodel and then perform some action outside in a javascript public function.

Thanks

Answer 1

Try out this modified version of your fiddle: http://jsfiddle.net/js8hh/4/

        self.Errors = ko.computed(function() {
            var errs = [];
            for(var p in self) {
                if(self.hasOwnProperty(p)) {
                    var pObj = self[p];
                    if(!!!ko.validation.utils.isValidatable(self[p])) {
                        console.info("ope, nvm");
                    } else {                            
                        if(!ko.validation.validateObservable(pObj)) {
                            errs.push({'Property':p,'Error':ko.utils.unwrapObservable(pObj.error)});
                        }
                    }
                } else {
                    console.trace("skipping prototype property");
                }
            }
            return errs;
        });

and then at the bottom

            addJointHolder: addJointHolder,
            AllErrors: ko.computed(function() {
                result = []
                ko.utils.arrayForEach(jointholders(),function(jh) {
                    if(jh.Errors().length > 0) {
                        result.push({'JointHolder':jh,'Errors':jh.Errors()});
                    }
                });
                return result;
            })