我无法使用 durandal 启动和运行 knockout.validation。 knockout 本身工作正常。如果有人明白这一点,我将不胜感激发布配置。
// main.js
require.config({
paths: {
"libs": "../scripts",
"knockout": "../scripts/knockout-2.2.1",
'knockout.validation': '../scripts/knockout.validation'
},
shim: {
'knockout.validation': {
deps: ["knockout"]
}
}
});
define(function (require) {
validation = require('libs/knockout.validation')
// other dependencies are omitted
ko.validation = validation;
// ko works fine
// ko validation has been set
}
// my viewmodel
define(['services/logger',
'durandal/app',
'durandal/system',
'durandal/plugins/router',
'services/dataservice'],
function (logger, app, system, router, dataservice) {
var user_name = ko.observable().extend( {required: true } );
var user_password = ko.observable().extend( {required: true });
// Unable to get property 'extend' of undefined or null reference
// the same happens, if I define '/libs/knockout.validation locally
kockout.validation 的行为是否与其他插件不同?
最佳答案
这是一个 knockout validation 和 durandal vm 的工作示例;
define(['plugins/router', 'durandal/app', 'config'],function (router, app, config) {
ko.validation.init({
messagesOnModified: false
});
ko.validation.registerExtenders();
var email = ko.observable().extend({
required: { message: 'You must enter a valid email id' },
email: { message: 'Email address you entered is not valid' }
});
var password = ko.observable().extend({
required: { message: 'Enter password, minimum of 6 characters' },
minLength: 6
});
var vm = {
activate: activate,
attached: attached,
router: router,
email: email,
password: password,
signIn: signIn,
viewUrl : 'signin/index.html'
};
vm.errors = ko.validation.group(vm);
return vm;
function activate(id, querystring) {}
function attached(view, parent) { }
function signIn() {
if (!vm.isValid()) {
vm.errors.showAllMessages(true);
return false;
}
//rest of logic
}
});
关于knockout.js - 在 Durandal/SPA 应用程序中配置 Knockout 验证,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/18033268/