5
我最近開始與requirejs一起工作,當我嘗試創建一個簡單的viewmodel我得到一個奇怪的例外。異常來自knockout-2.1.0.js文件,異常是「只有可訂閱的東西可以充當依賴關係」。淘汰賽viewmodel和requirejs
define("PageViewModel", ["knockout-2.1.0"], function(ko) {
return function PageViewModel() {
var self = this;
self.visiblePage = ko.observable("StartPage");
self.showPage = function (pageName) {
self.visiblePage(pageName);
};
};
});
正如你所看到的視圖模型是簡單的極端既然錯誤是在淘汰賽js文件,好像requirejs工作,因爲它應該。我一直在看:http://knockoutjs.com/documentation/amd-loading.html 來到這一行時發生異常:self.visiblePage = ko.observable(「StartPage」);
關於我在做什麼錯的任何想法?
感謝, 路德維希
更新: 這是包含pageviewmodel模塊:
define("ViewModelFactory", ["StorageService", "PageViewModel", "AddUnitViewModel", "AddRoomViewModel"],
function (StorageService, PageViewModel, AddUnitViewModel, AddRoomViewModel) {
//var repositoryStorage = new StorageService();
var createAddRoomVM = function() {
var vm = new AddRoomViewModel();
vm.setRepository = StorageService.getRoomRepository();
return vm;
};
var createAddUnitVM = function() {
var vm = new AddUnitViewModel();
vm.setRepository = StorageService.getUnitRepository();
return vm;
};
var createPageVM = function() {
var vm = new PageViewModel();
return vm;
};
return {
createPageVM:createPageVM,
createAddRoomVM: createAddRoomVM,
createAddUnitVM: createAddUnitVM
};
});
和模塊調用工廠
define("ApplicationViewModel", ["ViewModelFactory"],
function (viewModelFactory) {
mainVM = null;
var initVM = function() {
mainVM = {
page: viewModelFactory.createPageVM(),
addRoom: viewModelFactory.createAddRoomVM(),
addUnit: viewModelFactory.createAddUnitVM()
};
};
var getVM = function (viewName) {
switch (viewName) {
case "AddRoom":
return mainVM.addRoom;
case "AddUnit":
return mainVM.addUnit;
default:
return null;
}
};
var getPageVM = function() {
return mainVM.page;
};
return {
initVM: initVM,
getVM: getVM,
getPageVM: getPageVM,
mainVM: mainVM
};
});
和包含applicationViewModel類:
define("Bootstrapper", ["knockout-2.1.0", "Routing", "ApplicationViewModel"],
function (ko, routing, applicationViewModel) {
var run = function() {
applicationViewModel.initVM(); <-- after here mainVM.page is null
var mainVM = applicationViewModel.mainVM;
routing.initRouting(applicationViewModel);
ko.applyBindings(mainVM);
routing.showView("StartPage");
alert("Start");
};
return {
run: run
};
})
你還可以發佈你的代碼在哪裏使用你的'PageViewModel',也許你的視圖代碼? – nemesv
根據ko源代碼,在行956中,當屬性不可下標時發生異常。 – Ray
該屬性應該是可訂閱的,因爲它只是一個常規變量,我想... – user1842278