如下所示，我有一个返回复杂对象的虚拟内存存储。我想将这个复杂的对象绑定(bind)到表单。因为它是一个复杂的对象，所以我通过两个 MVC 组绑定(bind)该对象。刷新模型时会出现问题(通过“获取”按钮)。刷新外部 MVC 组，但不刷新内部 MVC 组。仅当我手动重新设置内部 MVC 组的 target 属性时它才有效:
dijit.byId('sub-group').set('target', model.prop7);
还有其他更好的方法吗？
<script type="text/javascript">
// Create dummy store
var store;
require(['dojo/store/Memory'], function(Memory) {
store = new Memory({
data: [{
id: 1,
prop1: 'prop 1 value',
prop2: 'WA',
prop7: {
prop8: 'prop 4 value',
prop9: 'prop 5 value'
}
}]
});
});
// Create model for MVC
var model;
require([
'dojo/dom',
"dojo/parser",
"dojo/Stateful",
"dojo/domReady!"
], function (dom, parser, Stateful) {
model = new Stateful();
});
</script>
<button data-dojo-type="dijit/form/Button" data-dojo-props="iconClass: 'dijitIconDatabase'">
<script type="dojo/on" data-dojo-event="click">
var data = store.get(1);
model.set(data);
//dijit.byId('sub-group').set('target', model.prop7);
</script>
Fetch
</button>
<form data-dojo-type="dijit/form/Form" id="form" data-dojo-type="dojox/mvc/Group" data-dojo-props="target: model">
<script type="dojo/require">at: "dojox/mvc/at"</script>
<div class="row">
<label for="text">Text:</label>
<input id="text" data-dojo-type="dijit/form/ValidationTextBox" required="true" data-dojo-props="value: at('rel:', 'prop1')"/>
</div>
<div class="row" id="sub-group" data-dojo-type="dojox/mvc/Group" data-dojo-props="target: model.prop7">
<label for="text2">Text 2:</label>
<input id="text2" data-dojo-type="dijit/form/ValidationTextBox" required="true" data-dojo-props="value: at('rel:', 'prop8')"/>
</div>
</form>
最佳答案
我可以说的几件事是:
- 一般来说，你需要使用dojox/mvc/at使小部件对模型的变化使用react。 dojox/mvc/Group也不异常(exception)。
- Dojo 不允许你放两个
data-dojo-type到一个元素。您可能需要考虑data-dojo-mixins. - 要创建嵌套对象的数据模型，您需要使用dojox/mvc/getStateful。 . dojox/mvc/StatefulModel已被 dojox/mvc/getStateful 取代和 dojox/mvc/StoreRefController从 1.8 版本开始。
这是类似用例的示例代码:
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="//ajax.googleapis.com/ajax/libs/dojo/1.10.1/dojo/resources/dojo.css" />
<link id="themeStyles" rel="stylesheet" href="//ajax.googleapis.com/ajax/libs/dojo/1.10.1/dijit/themes/claro/claro.css" />
<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/dojo/1.10.1/dojo/dojo.js" data-dojo-config="parseOnLoad: 0, async: 1"></script>
<script type="text/javascript">
require([
"dojo/parser",
"dojo/store/Memory",
"dojox/mvc/getStateful"
], function(parser, Memory, getStateful){
model = getStateful({});
store = new Memory({
data: [{
id: "mydata",
prop1stLevel: "Value of 1st level property",
group2ndLevel: {
prop2ndLevel: "Value of 2nd level property"
}
}]
});
parser.parse();
});
</script>
</head>
<body class="claro">
<script type="dojo/require">at: "dojox/mvc/at"</script>
<button data-dojo-type="dijit/form/Button" data-dojo-props="iconClass: 'dijitIconDatabase'">
<script type="dojo/on" data-dojo-event="click">
require(["dojox/mvc/getStateful"], function(getStateful){
model.set("group1stLevel", getStateful(store.get("mydata")));
});
</script>
Fetch
</button>
<form id="form" data-dojo-type="dijit/form/Form" data-dojo-mixins="dojox/mvc/Group" data-dojo-props="target: at(model, 'group1stLevel')">
<div class="row">
<label for="1st-level">1st level:</label>
<input id="1st-level" data-dojo-type="dijit/form/ValidationTextBox" required="true" data-dojo-props="value: at('rel:', 'prop1stLevel')"/>
</div>
<div class="row" id="sub-group" data-dojo-type="dojox/mvc/Group" data-dojo-props="target: at('rel:', 'group2ndLevel')">
<label for="2nd-level">2nd level:</label>
<input id="2nd-level" data-dojo-type="dijit/form/ValidationTextBox" required="true" data-dojo-props="value: at('rel:', 'prop2ndLevel')"/>
</div>
</form>
</body>
</html>
希望这对您有所帮助。
最好的，- Akira
关于javascript - 在模型更改时刷新 Dojo MVC 组不适用于复杂对象，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/26947320/