How to Encode from Extjs.Class to JSON String?

Question

I want to Encode EXTjs Class to Json, But, I can't..

I use JSON.stringify, but that gives Exception with Type error.

How can I do that?

Thanks and Here my Code.

Ext.define('Text',{
 extend : 'Ext.Img',
 x : 50,
 y : 50,
 size : 100,
 text : 'Text',
 name : 'Text',
 src : ' ',
 tag : '',
 Events : []
});
var text = new Text();
var temp = JSON.stringify(text);

Answer 1

try using

Ext.encode(Object)

it Encodes an Object, Array or other value & returns The JSON string.

refer Ext.JSON

serialize object

• LostCode: I tried, but Error.. 'RangeError: Maximum call stack size exceeded'
• MMT: try var seen = []; var temp = JSON.stringify(text, function(key, val) { if (typeof val == "object") { if (seen.indexOf(val) >= 0) return undefined seen.push(val) } return val }); console.log(temp);
• LostCode: But, I solve this problem, but it is not smart.. I made parser for Class. That error's cause is the Ext core is include in Class. So I made Parser. I get Idea from your answer. Thanks! If you know other way, Please tell me.

Answer 2

The problem here is that ExtJS creates internal references on the objects, which turn out to be cyclical. Thus, the default JSON serializer fails.

You need to manually define a toJSON method which will be called by JSON.stringify:

Ext.define('Text', {
 extend : 'Ext.Img',
 x : 50,
 y : 50,
 size : 100,
 text : 'Text',
 name : 'Text',
 src : ' ',
 tag : '',
 Events : [],
 toJSON: function () {
 return 'Whatever you like' + this.text + this.size // etc.
 }
});
JSON.stringify(new Text()); // "Whatever you likeText100"