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  1. #1
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    Dehru is on a distinguished road

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    Default Model Associations Return Empty Stores

    Model Associations Return Empty Stores


    Hello,
    I'm trying to use the generated association functions as described in the data guide to traverse associations in my model. For instance, a workspace has many portlets. When I define these two models and a store, and then I try to use workspace.portlets() I don't get any of the portlets. But if I walk the data field I see the data. Please see my example below and the console.log statements.

    Code:
            Ext.define('Workspace', {
                extend: 'Ext.data.Model',
                fields: [
                    'id','name'
                ],
                hasMany : {model:'Portlet', name:'portlets'}
            });
    
    
            Ext.define('Portlet', {
                extend: 'Ext.data.Model',
                fields: [
                    'id', 'workspace_id', 'name', 'column'
                ],
                belongsTo : 'Workspace'
            });
    
    
            Ext.onReady(function() {
    
                var portletStore = new Ext.data.Store({
                    storeId: 'portletStore',
                    model: 'Workspace',
                    data: [
                        {
                            "id":1,
                            "name": 'hello workspace',
                            "portlets": [
    
                                {
                                    "id":1
                                    ,"workspace_id":1
                                    ,"title": "One"
                                    ,"column": 1
                                    ,"xtype": "chartportlet"
                                }
                                ,
                                {
                                    "id":2
                                    ,"workspace_id":1
                                    ,"title": "Two"
                                    ,"column" : 2
                                    ,"xtype": "gridportlet"
                                }
                            ]
                        }
                    ]
                    
                });
    
                console.log(portletStore.first());//Works and data property shows two child portlets
                console.log(portletStore.first().portlets());//Does not contain any child portlets
                console.log(portletStore.first().data.portlets);//Does contain child portlets
                console.log(portletStore.first().getAssociatedData());//empty
            });
    I must be building the relationship wrong but I can't see why. Any help would be appreciated.

  2. #2
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    Default


    You need to specify the store proxy type.

    Code:
        proxy: {
          type: 'memory',
          reader: {
            type: 'json'
          }
        },
    Part of your sample code will become
    Code:
      var portletStore = new Ext.data.Store({
        storeId: 'portletStore',
        model: 'Workspace',
        proxy: {
          type: 'memory',
          reader: {
            type: 'json'
          }
        },
        data: [
          {
            "id":1,
            "name": 'hello workspace',
            "portlets": [
    
              {
                "id":1
                ,"workspace_id":1
                ,"title": "One"
                ,"column": 1
                ,"xtype": "chartportlet"
              }
              ,
              {
                "id":2
                ,"workspace_id":1
                ,"title": "Two"
                ,"column" : 2
                ,"xtype": "gridportlet"
              }
            ]
          }
        ]
      });
    Hope this help.

  3. #3
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    Dehru is on a distinguished road

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    Default Thanks

    Thanks


    I'll give that a shot.

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