CODEWITHSUNDEEP
extjsextjs4
stormdrain
stormdrain

Reputation: 7895

Grid rows with nested data from loaded store

I have a dataview that gets loaded with a parameter. I render this data in a template. I am trying to use the same data in which there is a nested item to render to a grid.

The data looks like this:

{
    "myJson": {
        "name": "abc",
        "type": "faulty",
        "notes": [
            {
                "date": "01-01-1970",
                "note": "test note"
            },
            {
                "date": "01-02-1970",
                "note": "test note 2"
            }
        ]
    }
}

The store:

proxy: {
                type: 'ajax',
                url: '/api/detail/',
                reader: {
                    type: 'json',
                    root: 'myJson'
                }
            }

Model:

    {
        name:'name',
    },
    {
        name:'type',
    },
    {
        name:'notes',
        mapping:'notes'
    },

Template:

{name} - {type}

That all works. What I'd like to do is use the notes chunk to display in a grid. Problem is I can't get it to read the notes group. 

var notesListView = new Ext.list.ListView({
    store: 'myStore',
    multiSelect: false,
    width:'100%',
    id:'notesList',
    columns: [{
        header: 'Date',
        width: 75,
        dataIndex: 'date'
    },{
        header: 'Note',
        width: 150,
        dataIndex: 'note',
    }]
});

Is it even possible to do this? Or do I need to create a new store and model to use this group of data in a grid?

I've tried mapping to notes.date, for instance, in both the model

name:'note_date',
mapping:'notes.date'

and in the grid itself 

dataIndex:'notes.date'

neither of which worked.

I've also tried using renderer but this doesn't work either as it's an array

renderer:function(value, metaData, record, rowIndex, colIndex, store){
    var value = value.date;//won't work; it needs an index a la value[0].date
    return value;
}

Upvotes: 2

Views: 7256

Answers (1)

alexrom7
alexrom7

Reputation: 864

You could create a nested model with the same data you are receiving. It would be like this 

Ext.define("JsonModel", {
  extend: 'Ext.data.Model',
  fields: ['name','type'],
  hasMany: [{
      model: 'Note',
      name: 'notes'
  }]
});

Ext.define("Note", {
  extend: 'Ext.data.Model',
  fields: [
      'date',
      'note']
});

This way you could access the children of any give record like this

var jsonRecordChildren = jsronRecord.notes()

The variable jsonRecordChildren that I just created is of the type Store, so you could easily assign it to the attribute store of a grid.

Ext.create('Ext.grid.Panel', {
  store: selectedRecord.notes(),
  columns: [
      { text: 'Date',  dataIndex: 'date' },
      { text: 'Note', dataIndex: 'note'}
  ],
  renderTo: Ext.getBody()
});

http://jsfiddle.net/alexrom7/rF8mt/2/

Upvotes: 1

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