extjs 4 XTemplate class associations

I'm testing out extjs 4 and I have stumbled upon something, I can't seem to figure out.

I have simple object association: Snapshot - hasMany -> Model

Now, I am trying to use XTemplate to show this association in View component, so I have my XTemplate looking like this:

Ext.create('Ext.XTemplate',
'<tpl for=".">',
'<div class="snapshot" id="{id}">',
'<h1>{snapshot}</h1>',
'<p><span class="label">Created: </span>{dateString}</p>',
'<p><span class="label">Models</span></p>',
'<tpl for="models">',
'<p>{name}  - {description}</p>',
'</tpl>',
'</div>',
'</tpl>',
'<div class="x-clear bottompad"></div>'
);

And my JSON response looks like this (showing just 'snapshot' node):

    {
        "id": 1,
        "snapshot": "Snapshot 1",
        "created": 1305806847000,
        "models": [
            {
                "id": 1,
                "name": "ABC",
                "description": "A B C"
            }, {

                "id": 111,
                "name": "ABCDD",
                "description": "A B C XCXC"
            }
        ]
    }

As extjs 4 introduces concept of Model I have created models for Snapshot and Model and created association according to API docs.

Snapshot model:

Ext.define('Snapshot', {
    extend: 'Ext.data.Model',
    fields: [
        {name: 'id', type: 'int'},
        'snapshot',
        {name: 'created',type: 'date', dateFormat: 'time' }

    ],
    associations:[
      {type: 'hasMany', model: 'Model', name: 'models'}  
    ],
    idProperty: 'id'
});

Model model ;P

Ext.define('Model', {
    extend: 'Ext.data.Model',
    belongsTo: 'Snapshot',
    fields: [
        { name: 'id',  type: 'int' },
        { name: 'snapshot_id', type: 'int' },            
        'name',


                    
                    
                        
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1 Answer

-1

from my very recent experience, you shouldn't have problems if you are NOT working through stores. The XTemplate example from ExtJS 4 docs works ok (at least for me). You can add a model for those data and the example will be working on.

I tried to do the same through a store. When you pass the store.first().data to the overwrite(...) XTemplate method, the associations are not in that structure. You can check in the following code:

var data = {
    name : 'Tommy Maintz',
    title : 'Lead Developer',
    company : 'Sencha Inc.',
    email : 'tommy@sencha.com',
    address : '5 Cups Drive',
    city : 'Palo Alto',
    state : 'CA',
    zip : '44102',
    drinks : ['Coffee', 'Soda', 'Water'],
    kids : [{
                name : 'Joshua',
                age : 3
            }, {
                name : 'Matthew',
                age : 2
            }, {
                name : 'Solomon',
                age : 0
            }]
};



var kidsModelProps = {
    extend: "Ext.data.Model",
    fields: [
        "name",
        {name: "age", type: "int"}
    ]
}
Ext.define ("KidsModel", kidsModelProps)

var datamodelProps = {
    extend: "Ext.data.Model",
    fields: [
        "name", "title", "company", "email", "address",
        "city", "state", "zip", "drinks"
    ],

    hasMany: {name: "thekids", model: "KidsModel"},

    proxy: {
        type: "memory",
        reader: {
            type: "json"
        }
    }
}
Ext.define ("DataModel", datamodelProps)


var kidsStore = new Ext.data.Store({
    data: data,
    storeId: "kidsStore",
    model: "DataModel"

})

var tpl = new Ext.XTemplate(
    '<p>Name: {name}</p>',
    '<p>Title: {title}</p>',
    '<p>Company: {company}</p>',
    '<p>Kids: ',
    '<tpl for="kids">',     // interrogate the kids property within the data
        '<p>{name}</p>',
    '</tpl></p>'
);

Ext.onReady(function () {
    var thePanel = Ext.create ("Ex


                        
                        
                            answered 2011-08-11T16:16:38.513

extjs 4 XTemplate class associations

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