error loading root children

Hi,

I use the JSON below to create an ItemFileReadStore, which I then use to
create a ForestStoreModel, which I use to create a Tree.  When I leave
out the 'months' property in the item with 'name' : 'RFE', it works
perfectly.  But, when 'months' refers to an {}, I get the following error:

 [Widget dijit.Tree, dijit_Tree_0] _connects=HTMLDivElement
_deferredConnects=Object : error loading root children:  TypeError: _48
is undefined message=_48 is undefined

I've tried using:

{
    'name' : 'RFE',
    'type' : 'dataset',
    'periodicities' : [ 'daily', 'dekadal', 'monthly' ],
    'selectedPeriodicity' : 'monthly',
    'units' : [ 'raw', 'percent', 'zscore', 'mmdifference', 'spi' ],
    'selectedUnits' : 'raw',
    'months' : {}
  }

as a test, and this doesn't work, either.  Is it permissible to have a
nested object in an item?

Here's the complete JSON:

{
  identifier : 'name',
  label : 'name',
  items : [
  {
    'name' : 'All Africa',
    'type' : 'region',
    'children': [
    {
      '_reference' : 'RFE'
    },
    {
      '_reference' : 'TPW'
    },
    {
      '_reference' : 'NDVI'
    },
    {
      '_reference' : 'WRSI'
    }
    ]
  },
  {
    'name' : 'East Africa',
    'type' : 'region',
    'children': [
    {
      '_reference' : 'RFE'
    },
    {
      '_reference' : 'TPW'
    },
    {
      '_reference' : 'NDVI'
    },
    {
      '_reference' : 'WRSI'
    }
    ]
  },
  {
    'name' : 'West Africa',
    'type' : 'region',
    'children': [
    {
      '_reference' : 'RFE'
    },
    {
      '_reference' : 'TPW'
    },
    {
      '_reference' : 'NDVI'
    },
    {
      '_reference' : 'WRSI'
    }
    ]
  },
  {
    'name' : 'South Africa',
    'type' : 'region',
    'children': [
    {
      '_reference' : 'RFE'
    },
    {
      '_reference' : 'TPW'
    },
    {
      '_reference' : 'NDVI'
    },
    {
      '_reference' : 'WRSI'
    }
    ]
  },
  {
    'name' : 'RFE',
    'type' : 'dataset',
    'periodicities' : [ 'daily', 'dekadal', 'monthly' ],
    'selectedPeriodicity' : 'monthly',
    'units' : [ 'raw', 'percent', 'zscore', 'mmdifference', 'spi' ],
    'selectedUnits' : 'raw',
    'months' : {
      '2003' : 'all',
      '2004' : 'all',
      '2005' : 'all',
      '2006' : 'all',
      '2007' : 'all',
      '2008' : [ '1', '2', '3', '4', '5', '6', '7' ]
    }
  },
  {
    'name' : 'TPW',
    'type' : 'dataset',
    'periodicities' : [ 'daily', 'dekadal' ],
    'selectedPeriodicity' : 'dekadal',
    'units' : [ 'raw', 'percent' ],
    'selectedUnits' : 'percent'
  },
  {
    'name' : 'NDVI',
    'type' : 'dataset',
    'periodicities' : [ 'daily', 'monthly' ],
    'selectedPeriodicity' : 'daily',
    'units' : [ 'raw', 'percent', 'spi' ],
    'selectedUnits' : 'spi'
  },
  {
    'name' : 'WRSI',
    'type' : 'dataset',
    'periodicities' : [ 'dekadal', 'monthly' ],
    'units' : [ 'raw', 'percent', 'zscore', 'spi' ],
    'selectedUnits' : 'zscore'
  }
  ]
}

Any thoughts?

Thanks!

Greg

--
| E R G O N O S I S
| Greg Ederer
| Lead Developer
| greg@...
| 360.774.6848
|

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