« Return to Thread: error loading root children

Re: error loading root children

by jaredj :: Rate this Message:

Reply to Author | View in Thread

A nested object in an item is treated as another item.  See:
http://docs.dojocampus.org/dojo/data/ItemFileReadStore#items-with-hierarchy.
 In this case, you declare the identifier, then have an item that
doesn't have an identifier.  The load of that structure will fail in
the store.

-- Jared

On Sun, Oct 5, 2008 at 4:12 PM, Greg Ederer <greg@...> wrote:

> 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
> |
>
> _______________________________________________
> FAQ: http://dojotoolkit.org/support/faq
> Book: http://dojotoolkit.org/docs/book
> Forums: http://dojotoolkit.org/forum
> Dojo-interest@...
> http://turtle.dojotoolkit.org/mailman/listinfo/dojo-interest
>
_______________________________________________
FAQ: http://dojotoolkit.org/support/faq
Book: http://dojotoolkit.org/docs/book
Forums: http://dojotoolkit.org/forum
Dojo-interest@...
http://turtle.dojotoolkit.org/mailman/listinfo/dojo-interest

 « Return to Thread: error loading root children