Ext version tested:
  • Ext 4.2 Beta 2

Browser versions tested against:
  • Chrome 23.0.1271.97 m
Description:

I am not 100% sure this is a bug, it might be by design for various reasons, but loadRawData doesn't fire the beforeload event. This may have side effects and it can be confusing.

A side effect seems to be this bug: http://www.sencha.com/forum/showthread.php?176485

It is confusing because the function fires the load event, so my expectation was that the beforeload event gets fired as well. These two events should act together as a pair, in my mind.

I guess I can always call manually the fireEvent function on store before I make the loadRawData call, but still it doesn't feel right not to pair the two events together.

Steps to reproduce the problem:

I modified the array-grid.js sample.

Code:
Ext.require([
    'Ext.grid.*',
    'Ext.data.*',
    'Ext.util.*',
    'Ext.state.*'
]);

// Define Company entity
// Null out built in convert functions for performance *because the raw data is known to be valid*
// Specifying defaultValue as undefined will also save code. *As long as there will always be values in the data, or the app tolerates undefined field values*
Ext.define('Company', {
    extend: 'Ext.data.Model',
    fields: [
       {name: 'company'},
       {name: 'price',      type: 'float', convert: null,     defaultValue: undefined},
       {name: 'change',     type: 'float', convert: null,     defaultValue: undefined},
       {name: 'pctChange',  type: 'float', convert: null,     defaultValue: undefined},
       {name: 'lastChange', type: 'date',  dateFormat: 'n/j h:ia', defaultValue: undefined}
    ],
    idProperty: 'company'
});

Ext.onReady(function() {
    Ext.QuickTips.init();
    
    // setup the state provider, all state information will be saved to a cookie
    Ext.state.Manager.setProvider(Ext.create('Ext.state.CookieProvider'));

    // sample static data for the store
    var myData = [
        ['3m Co',                               71.72, 0.02,  0.03,  '9/1 12:00am'],
        ['Alcoa Inc',                           29.01, 0.42,  1.47,  '9/1 12:00am'],
        ['Altria Group Inc',                    83.81, 0.28,  0.34,  '9/1 12:00am'],
        ['American Express Company',            52.55, 0.01,  0.02,  '9/1 12:00am'],
        ['American International Group, Inc.',  64.13, 0.31,  0.49,  '9/1 12:00am'],
        ['AT&T Inc.',                           31.61, -0.48, -1.54, '9/1 12:00am'],
        ['Boeing Co.',                          75.43, 0.53,  0.71,  '9/1 12:00am'],
        ['Caterpillar Inc.',                    67.27, 0.92,  1.39,  '9/1 12:00am'],
        ['Citigroup, Inc.',                     49.37, 0.02,  0.04,  '9/1 12:00am'],
        ['E.I. du Pont de Nemours and Company', 40.48, 0.51,  1.28,  '9/1 12:00am'],
        ['Exxon Mobil Corp',                    68.1,  -0.43, -0.64, '9/1 12:00am'],
        ['General Electric Company',            34.14, -0.08, -0.23, '9/1 12:00am'],
        ['General Motors Corporation',          30.27, 1.09,  3.74,  '9/1 12:00am'],
        ['Hewlett-Packard Co.',                 36.53, -0.03, -0.08, '9/1 12:00am'],
        ['Honeywell Intl Inc',                  38.77, 0.05,  0.13,  '9/1 12:00am'],
        ['Intel Corporation',                   19.88, 0.31,  1.58,  '9/1 12:00am'],
        ['International Business Machines',     81.41, 0.44,  0.54,  '9/1 12:00am'],
        ['Johnson & Johnson',                   64.72, 0.06,  0.09,  '9/1 12:00am'],
        ['JP Morgan & Chase & Co',              45.73, 0.07,  0.15,  '9/1 12:00am'],
        ['McDonald\'s Corporation',             36.76, 0.86,  2.40,  '9/1 12:00am'],
        ['Merck & Co., Inc.',                   40.96, 0.41,  1.01,  '9/1 12:00am'],
        ['Microsoft Corporation',               25.84, 0.14,  0.54,  '9/1 12:00am'],
        ['Pfizer Inc',                          27.96, 0.4,   1.45,  '9/1 12:00am'],
        ['The Coca-Cola Company',               45.07, 0.26,  0.58,  '9/1 12:00am'],
        ['The Home Depot, Inc.',                34.64, 0.35,  1.02,  '9/1 12:00am'],
        ['The Procter & Gamble Company',        61.91, 0.01,  0.02,  '9/1 12:00am'],
        ['United Technologies Corporation',     63.26, 0.55,  0.88,  '9/1 12:00am'],
        ['Verizon Communications',              35.57, 0.39,  1.11,  '9/1 12:00am'],
        ['Wal-Mart Stores, Inc.',               45.45, 0.73,  1.63,  '9/1 12:00am']
    ];

    /**
     * Custom function used for column renderer
     * @param {Object} val
     */
    function change(val) {
        if (val > 0) {
            return '<span style="color:green;">' + val + '</span>';
        } else if (val < 0) {
            return '<span style="color:red;">' + val + '</span>';
        }
        return val;
    }

    /**
     * Custom function used for column renderer
     * @param {Object} val
     */
    function pctChange(val) {
        if (val > 0) {
            return '<span style="color:green;">' + val + '%</span>';
        } else if (val < 0) {
            return '<span style="color:red;">' + val + '%</span>';
        }
        return val;
    }

    // create the data store
    var store = Ext.create('Ext.data.ArrayStore', {
        model: 'Company',
        //data: myData,
        listeners: {
          beforeload: {
             fn: function (store, operation, eOpts)
             {
               alert('beforeLoad');
             }
          },
          load: {
             fn: function (store, operation, eOpts)
             {
               alert('load');
             }
          }
        }
    });
    
    store.loadRawData(myData);

    // create the Grid
    var grid = Ext.create('Ext.grid.Panel', {
        store: store,
        stateful: true,
        collapsible: true,
        multiSelect: true,
        stateId: 'stateGrid',
        columns: [
            {
                text     : 'Company',
                flex     : 1,
                sortable : false,
                dataIndex: 'company'
            },
            {
                text     : 'Price',
                width    : 75,
                sortable : true,
                renderer : 'usMoney',
                dataIndex: 'price'
            },
            {
                text     : 'Change',
                width    : 75,
                sortable : true,
                renderer : change,
                dataIndex: 'change'
            },
            {
                text     : '% Change',
                width    : 75,
                sortable : true,
                renderer : pctChange,
                dataIndex: 'pctChange'
            },
            {
                text     : 'Last Updated',
                width    : 85,
                sortable : true,
                renderer : Ext.util.Format.dateRenderer('m/d/Y'),
                dataIndex: 'lastChange'
            },
            {
                menuDisabled: true,
                sortable: false,
                xtype: 'actioncolumn',
                width: 50,
                items: [{
                    icon   : '../shared/icons/fam/delete.gif',  // Use a URL in the icon config
                    tooltip: 'Sell stock',
                    handler: function(grid, rowIndex, colIndex) {
                        var rec = store.getAt(rowIndex);
                        alert("Sell " + rec.get('company'));
                    }
                }, {
                    getClass: function(v, meta, rec) {          // Or return a class from a function
                        if (rec.get('change') < 0) {
                            return 'alert-col';
                        } else {
                            return 'buy-col';
                        }
                    },
                    getTip: function(v, meta, rec) {
                        if (rec.get('change') < 0) {
                            return 'Hold stock';
                        } else {
                            return 'Buy stock';
                        }
                    },
                    handler: function(grid, rowIndex, colIndex) {
                        var rec = store.getAt(rowIndex);
                        alert((rec.get('change') < 0 ? "Hold " : "Buy ") + rec.get('company'));
                    }
                }]
            }
        ],
        height: 350,
        width: 600,
        title: 'Array Grid',
        renderTo: 'grid-example',
        viewConfig: {
            stripeRows: true,
            enableTextSelection: true
        }
    });
});
The result that was expected:

The 'beforeload' alert message pops up as well

The result that occurs instead:

Only the 'load' alert message pops up.

Operating System:
  • Windows 7 64 bit