[英]Knockout component viewmodel not defined when using AMD
我一直在尝试将Knockout组件与require.js一起用于我正在从事的项目。 当我使用组件时,它将显示HTML模板,但是模板内的绑定会引发参考错误,表明该字段未定义。 我相信这是因为1. viewModel未定义,或者2. viewModel没有绑定到模板。 但是我不知道如何解决它。
我正在Firefox开发人员版中使用phpStorm中的内置服务器
index.php
<?php
namespace project;
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Project | Admin</title>
<link rel="stylesheet" href="css/grid.css"/>
<style>
</style>
</head>
<body>
<admin-header params=""></admin-header>
<script src="js/vendor/require.js" data-main="js/app"></script>
</body>
</html>
app.js
requirejs.config({
paths: {
jquery: 'vendor/jquery',
postbox: 'vendor/knockout-postbox',
domReady: 'vendor/domReady',
text: 'vendor/text',
knockout: 'vendor/knockout',
hashchange: 'vendor/hashchange',
underscore: 'vendor/underscore',
ComponentManager: 'components/ComponentManager'
},
shim: {
knockout: {
deps: ['jquery']
},
hashchange: {
deps: ['jquery']
},
underscore:{
exports: '-'
}
}
});
require(['knockout', 'AdminViewModel', 'domReady!'], function(ko, AdminViewModel){
ko.applyBindings(new AdminViewModel());
});
AdminViewModel.js
define(['knockout', 'postbox', 'ComponentManager'], function( ko, postbox, ComponentManager) {
return function AdminViewModel() {
var self = this;
self.pageTitle = ko.observable('Home').publishOn('pageTitle');
var componentManager = new ComponentManager();
componentManager.registerComponents(['admin-header']);
/*
// doesnt work when registered in the parent view either
ko.components.register(
'admin-header', {
require: 'components/admin-header/admin-header'
}
);
*/
}
});
ComponentManager,js
define(['knockout', 'underscore', 'require'], function(ko, _, require){
return function ComponentManager() {
this.registerComponents = function(components) {
_.each(components, function (component) {
var componentPath = 'components/' + component + '/' + component;
console.log("registering: " + componentPath );
ko.components.register(component, {
require: componentPath
});
});
}
}
});
admin-header.js define(['knockout','postbox','text!./ admin-header_template.html'],
function(ko, postbox, template){
function AdminHeaderModel(params){
var self = this;
self.pageTitle = ko.observable('Title');//.subscripeTo('pageTitle', true, function(title){return title.toUpperCase()});
}
return {
viewmodel: AdminHeaderModel,
template: template
};
});
admin-header-template.html
<div>
<h1>Project</h1>
<h1 data-bind="text: pageTitle"></h1>
</div>
在您的admin-header
组件代码中,您需要返回一个viewModel
属性而不是viewmodel
。
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