Converting Circular structure to JSON

[Stacey Thornton]

In doing some research about how to create object graphs with parent/child associations, I ran across this error from an example in another discussion.

(Updated jsFiddle : http://jsfiddle.net/ciel/hzDZE/)

(Topic Where I got the Fiddle) https://groups.google.com/forum/?pli=1#!topic/knockoutjs/pTAfpUyW4xw

1544Uncaught Error: Unable to parse bindings. Message: TypeError: Converting circular structure to JSON; Bindings value: text: ko.toJSON(viewModel)

Any idea how to deal with this?

[Stacey Thornton]

Sorry, forgot to add that the error is in the debugging console. I know why this is happening, of course. The parent references the children references the parent etc. and so serialization would cause an infinite loop.

I have tried using the [name].prototype.toJSON method to exclude the parent from serialization, but it does not seem to work.

[dg...@brq.com]

Hi...facing the same issue...any idea?

[tim.f...@3smobile.com]

The problem is obviously the parent-binding.  Perhaps there is a way you could remove it.  See how this example does a tree structure:

http://knockoutjs.com/documentation/unobtrusive-event-handling.html 

-tim

[rajeev....@gmail.com]

Facing same problem. and as per some structuring I can't removing this circular reference. Any solution ?

[Ralph Becket]

Clearly you need to create a cycle-free version of your data structure prior to calling ko.toJSON.

Here's an example of how you might do that: http://jsfiddle.net/hzDZE/4/ (note the acyclicRowModel function).