CODEWITHSUNDEEP
extjsextjs4extjs-mvc
Julian Hollmann
Julian Hollmann

Reputation: 2912

TreeGrid: setting data root has no effect

I'm trying to setup a TreeGrid, my data object looks like this:

{
    "code": "success",
    "data": {
        "text": ".",
        "children": [
            {
                "clientname": "Market",
                "contact": "OpenX Market Advertiser",
                "email": "[email protected]",

I need to tell Ext that it should use data as the root element:

var store = Ext.create('Ext.data.TreeStore', {
    model: 'Task',
    proxy: {
        type: 'ajax',
        url: 'http://localhost/rocketads/trunk/advertisers/index/stats:true/',
        reader:{
            type:'json',
            root:'data'
        }
    },
});

This doesn't work for me although I'm successfully using this with normal Stores.

Upvotes: 3

Views: 2437

Answers (4)

Eric Xu
Eric Xu

Reputation: 1

I have the same problem in ExtJS 4.2 I try to solve this problem by following code.

Ext.define('XZSoftware.view.sysconfig.permission.PermissionWindow', {
    extend: 'Ext.window.Window',
    itemid: "sysconfig-permission-window",
    vierConfig: { loadMask: true },
    layout:
    {
        type: "fit"
    },
    minWidth: 400,
    minHeight: 300,
    tree: null,
    treeStore: null,
    initComponent: function () {
        var me = this;
        Ext.log("initComponent()", me);

        me.treeStore = Ext.create("Ext.data.TreeStore", {
            proxy: {
                type: "ajax",
                actionMethods: { read: "POST" },
                reader: {
                    type: "json",
                    root: "data"
                },
                url: '/permissiontree_load.xzsoftware?o=AAAAACB'
            },
            root: {
                text: "Premission Tree",
                expanded: true
            }
        });

        me.tree = Ext.create("Ext.tree.Panel", {
            rootVisible: false,
            store: me.treeStore
        });

        me.items = [
            me.tree
        ];

        this.callParent(arguments);
    },

    Version: "1.0.0.0"

});

The JSON will be responsed from HTTP request.

{
    "total": 17,
    "data": [{
        "data": [{
            "data": [],
            "expanded": true,
            "leaf": "true",
            "checked": false,
            "text": "HSBC"
        }, {
            "data": [],
            "expanded": true,
            "leaf": "true",
            "checked": false,
            "text": "All IDoc"
        }, {
            "data": [],
            "expanded": true,
            "leaf": "true",
            "checked": false,
            "text": "ProCRM"
        }],
        "expanded": true,
        "leaf": "false",
        "checked": false,
        "text": "Application Portal"
    }, {
        "data": [{
            "data": [],
            "expanded": true,
            "leaf": "true",
            "checked": false,
            "text": "Order List"
        }, {
            "data": [{
                "data": [],
                "expanded": true,
                "leaf": "true",
                "checked": false,
                "text": "Report by monthly total"
            }],
            "expanded": true,
            "leaf": "true",
            "checked": false,
            "text": "Order Report"
        }, {
            "data": [],
            "expanded": true,
            "leaf": "true",
            "checked": false,
            "text": "Search"
        }],
        "expanded": true,
        "leaf": "false",
        "checked": false,
        "text": "CNMOT - OMS"
    }, {
        "data": [{
            "data": [],
            "expanded": true,
            "leaf": "true",
            "checked": false,
            "text": "Company"
        }, {
            "data": [],
            "expanded": true,
            "leaf": "true",
            "checked": false,
            "text": "Funcation Setting"
        }, {
            "data": [],
            "expanded": true,
            "leaf": "true",
            "checked": false,
            "text": "Menu Setting"
        }, {
            "data": [],
            "expanded": true,
            "leaf": "true",
            "checked": false,
            "text": "Page Setting"
        }, {
            "data": [],
            "expanded": true,
            "leaf": "true",
            "checked": false,
            "text": "Permission"
        }, {
            "data": [],
            "expanded": true,
            "leaf": "true",
            "checked": false,
            "text": "Roles"
        }, {
            "data": [],
            "expanded": true,
            "leaf": "true",
            "checked": false,
            "text": "Users"
        }],
        "expanded": true,
        "leaf": "false",
        "checked": false,
        "text": "System Setting"
    }],
    "success": true,
    "message": "Success"
}

Notes: 1.Should set root config in TreeStore. 2.The children field in JSON need change to the root config in proxy of store. In my sample "children" set as "data".

Upvotes: 0

Izhaki
Izhaki

Reputation: 23586

You can also use this:

        reader: {
        type: 'json',
        // See http://stackoverflow.com/questions/9159627/extjs-loading-tree-from-json-file-using-mvc
        // http://stackoverflow.com/questions/6263380/extjs4-json-treestore
        root: function(o) {
            if (o.data) {
                return o.data;
            } else {
                return o.children;
            }
        }
    },

Upvotes: 3

David Kanarek
David Kanarek

Reputation: 12613

Unfortunately with a TreeStore, whatever you use for root is also used as the root for each subsequent level, so it's probably finding the root node, then not finding its data property. Either change the top level property from data to children or change each instance of children to data.

Upvotes: 1

Molecular Man
Molecular Man

Reputation: 22386

Since you have setup your reader with root: 'data' you have to replace 'children' with 'data' in your json:

{
    "code": "success",
    "data": {
        "text": ".",
        "data": [ // << not "children"
            {

Upvotes: 3

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