JSON - why is this recursive?!

[localzuk]

I am creating a tree for use with jstree (this is a test set of data, the actual program will create the data on the fly). However, this data seems to be showing as recursive... Why would this be?

 

[   {
     "data":"Year 5",
     "attr":{
        "id":"1",
        "rel":"year"
     },
     "children":[
        {
           "data":"5AM",
           "state":"closed",
           "children":[
              {
                 "data":"Pupil",
                 "state":"closed",
                 "attr":{
                    "id":"2",
                    "rel":"pupil"
                 }
              }
           ],
           "attr":{
              "id":"2",
              "rel":"class"
           }
        },
        {
           "data":"5BA",
           "state":"closed",
           "attr":{
              "id":"3",
              "rel":"class"
           }
        },
        {
           "data":"5CZ",
           "state":"closed",
           "attr":{
              "id":"4",
              "rel":"class"
           }
        }
     ]
  }
]

[localzuk]

Well, this isn't the 'right' fix but it works. Setting the "state" of any childless node to "leaf" stops the recursion.

 

Makes it annoying for generating the JSON though!