bootstrap-wysihtml5 knockout.validation

Question

我正在尝试为 wysihtml5 控件设置淘汰赛验证。目前我有以下代码：

<div>
   <textarea data-bind="wysihtml5: { data: Text, options: { 'font-styles': false, 'link': false, 'image': false, 'html': true } }"></textarea>
</div>

和视图模型：

 viewModel.Text.extend({ required: true });
 viewModel.saveValidationGroup = ko.validatedObservable({
            Text: viewModel.Text
        });
viewModel.save = function () {
            if (!viewModel.saveValidationGroup.isValid()) {
                viewModel.saveValidationGroup.errors.showAllMessages();
                return false;
            } else {
                console.log(ko.toJSON(viewModel.Text));
            }
        };

运行app时，控件正常加载，当textarea为空时，还有设置为Text viewmodel的属性：

<span id=\"_wysihtml5-undo\" class=\"_wysihtml5-temp\"></span><span><br><ul>    </ul>  </span>

问题是将 wysihtml5 控件与 knockout.validation 集成的正确方法是什么。

编辑：自定义绑定

ko.bindingHandlers.wysihtml5 = {
    init: function (element, valueAccessor, allBindingsAccessor, viewModel) {

        var options = {};
        var value = ko.utils.unwrapObservable(valueAccessor()) || {};

        options.events = {
            "change": function () {
                var observable;
                var content = ko.utils.unwrapObservable(valueAccessor()) || {};

                if (content.data != undefined) {
                    observable = valueAccessor().data;
                } else {
                    observable = valueAccessor();
                }

                observable(control.getValue());
            }
        };

        if (value.options) {
            ko.utils.extend(options, value.options);
            delete value.options;
        }

        // if the textarea has no id, generate one to keep wysihtml5 happy
        if ($(element).attr('id') == undefined || $(element).attr('id') == '')
            $(element).attr('id', 'id_' + Math.floor(new Date().valueOf()));

        var control = $(element).wysihtml5(options).data("wysihtml5").editor;
    },
    update: function (element, valueAccessor, allBindingsAccessor, viewModel) {
        //
        var control = $(element).data("wysihtml5").editor;
        var content = ko.utils.unwrapObservable(valueAccessor()) || {};

        if (content.data != undefined) {
            control.setValue(valueAccessor().data());
        } else {
            control.setValue(valueAccessor()());
        }
    }
};
ko.validation.makeBindingHandlerValidatable('wysihtml5');

Answer 1

使用ko.validation.makeBindingHandlerValidatable("wysihtml5")