backbone model undefined

[jimfog]

I am getting the familiar backbone model undefined.

 

I have created a jsbin example here: http://jsbin.com/silajo/15/

 

In the output pane you will see a calendar....click anywhere so that a popup box appear,enter some data in the input fields.

Till that point everything goes well....the event is displayed in the calendar.

 

But if I go yo click the newly created event I get in the console

 

Cannot read property 'isNew' of undefined.

 

This message appears when the parser tries to run the code at line 88: if (!this.model.isNew()) {

 

I know what this message I means but I cannot understand why this emitted.

 

The problem appeared once I updated backbone to the most recent version....1.1.2

 

I believe it has something to do with binding the view(the view related to popup box) to the model.

This view is defined at 78

 

 

P.S I want to add that the problem disappears when I refresh the page

Edited November 5, 2014 by jimfog