REQUIRED INFORMATION


Ext version tested:
  • Ext 4.1.1


Browser versions tested against:
  • Any


DOCTYPE tested against:
  • n/a


Description:
  • I ran into an issue that took quite some time to debug in our application. I have isolated it to the fact that when one creates 2 instances of a class the state of the first instance is lost and replaced by the state of the second one. This is happening when the class is defined by passing a function instead of an object as the second parameter to Ext.define as documented in extjs-4.1.1/docs/index.html#!/api/Ext-method-define

    I have reproduced it with the simple class below


Steps to reproduce the problem:
  • try code below
  • you will see that when the second instance is created the name property in the first instance takes the value of the one in the second instance


The result that was expected:
  • each instance to have its own state


Test Case:

Code:
Ext.define('test.class.PrivateExample',function(){
 var itsName = 'defaultName';  // this is private

function constructor(a) { if ( a !== undefined && a.name !== undefined ) {itsName = a.name;}}

function privateFct1() {return itsName;}

// The public API to this class
return  { publicFunction1: privateFct1, constructor: constructor	}
});


function testPrivateExample() {
var testObject = Ext.create('test.class.PrivateExample',{name: 'test1'});
console.log ( "First Object: name: " + testObject.publicFunction1() );
var testObject2 = Ext.create('test.class.PrivateExample',{name: 'test2'});
console.log ( "Second Instance: name: " + testObject2.publicFunction1() );
console.log ("  Now you see that first instance name is incorrect ! ");
console.log ( "First Instance: name: " + testObject.publicFunction1() );
}


HELPFUL INFORMATION


Screenshot or Video:
  • attached


See this URL for live test case: http://


Debugging already done:
  • none


Possible fix:
  • not provided


Additional CSS used:
  • only default ext-all.css
  • custom css (include details)


Operating System:
  • ________
  • any