使用TreeStore和TreePanel更正JSON和模型 [英] Correct JSON and Model with TreeStore and TreePanel
本文介绍了使用TreeStore和TreePanel更正JSON和模型的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有来自服务器端的JSON字符串:
I have a JSON String comes from the server side:
{"success":"true","total":"6","list":
[{"id":"1","name":"folder1","parentid":"null","type":"0"},
{"id":"2","name":"r1","parentid":"1","type":"1"},
{"id":"3","name":"folder2","parentid":"1","type":"0"},
{"id":"4","name":"r2","parentid":"3","type":"1"},
{"id":"5","name":"r3","parentid":"null","type":"1"},
{"id":"6","name":"folder3","parentid":"null","type":"0"}]}
如何将其转换为树?任何人都可以建议我如何获取列表中的元素(id,name,parentid,type)?
How do I turn that into a tree? Can anyone suggest me how to get the elements in the list (id, name, parentid, type)?
推荐答案
我用过以下结构:
模型
Ext.define('MyApp.model.MyTreeModel', {
extend: 'Ext.data.Model',
fields: [
'someStringIdentifier',
'children',
'dataForThisNode',
],
});
商店
Ext.define('MyApp.store.MyTreeStore', {
extend: 'Ext.data.TreeStore',
model: 'MyApp.model.MyTreeModel',
storeId: 'cubeDynamicStoreId',
autoLoad: false,
proxy: {
type: 'ajax',
api: {
read : '/myapp/rest/myquery',
},
reader: {
type: 'json',
root: 'children',
successProperty: 'success',
idProperty: 'id',
},
},
// bug in extjs4.1 autoLoad is ignored
// specifying "loaded: true" resolves the problem
root: {
expanded: true,
loaded: true,
},
});
示例JSON(使用 http://jsonviewer.stack.hu/ 可视化)
Sample JSON ( use http://jsonviewer.stack.hu/ to visualize)
使用leaf属性停止任何节点的扩展
Use the leaf property to stop expansion at any node
{"children":{"leaf":false,"someStringIdentifier":"Total","dataForThisNode":{},"children":[{"leaf":true,"someStringIdentifier":"data1","dataForThisNode":{},"children":[{"leaf":false,"someStringIdentifier":"2012","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2013","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2014","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2015","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2016","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2017","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2018","dataForThisNode":{},"children":null}]},{"leaf":true,"someStringIdentifier":"data2","dataForThisNode":{},"children":[{"leaf":false,"someStringIdentifier":"2012","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2013","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2014","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2015","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2016","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2017","dataForThisNode":{},"children":null},{"leaf":false,"someStringIdentifier":"2018","dataForThisNode":{},"children":null}]}]},"success":true}
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