    /**
     * A Column definition class which renders a value by processing a {@link Ext.data.Model Model}'s
     * {@link Ext.data.Model#persistenceProperty data} using a {@link #tpl configured}
     * {@link Ext.XTemplate XTemplate}.
     *
     *     @example
     *     Ext.create('Ext.data.Store', {
     *         storeId:'employeeStore',
     *         fields:['firstname', 'lastname', 'seniority', 'department'],
     *         groupField: 'department',
     *         data:[
     *             { firstname: "Michael", lastname: "Scott",   seniority: 7, department: "Management" },
     *             { firstname: "Dwight",  lastname: "Schrute", seniority: 2, department: "Sales" },
     *             { firstname: "Jim",     lastname: "Halpert", seniority: 3, department: "Sales" },
     *             { firstname: "Kevin",   lastname: "Malone",  seniority: 4, department: "Accounting" },
     *             { firstname: "Angela",  lastname: "Martin",  seniority: 5, department: "Accounting" }
     *         ]
     *     });
     *
     *     Ext.create('Ext.grid.Panel', {
     *         title: 'Column Template Demo',
     *         store: Ext.data.StoreManager.lookup('employeeStore'),
     *         columns: [
     *             { text: 'Full Name',       xtype: 'templatecolumn', tpl: '{firstname} {lastname}', flex:1 },
     *             { text: 'Department (Yrs)', xtype: 'templatecolumn', tpl: '{department} ({seniority})' }
     *         ],
     *         height: 200,
     *         width: 300,
     *         renderTo: Ext.getBody()
     *     });
     */
    Ext.define('Ext.grid.column.Template', {
        extend: 'Ext.grid.column.Column',
        alias: ['widget.templatecolumn'],
        requires: ['Ext.XTemplate'],
        alternateClassName: 'Ext.grid.TemplateColumn',

        /**
         * @cfg {String/Ext.XTemplate} tpl
         * An {@link Ext.XTemplate XTemplate}, or an XTemplate *definition string* to use to process a
         * {@link Ext.data.Model Model}'s {@link Ext.data.Model#persistenceProperty data} to produce a
         * column's rendered value.
         */

        initComponent: function(){
            var me = this;
            me.tpl = (!Ext.isPrimitive(me.tpl) && me.tpl.compile) ? me.tpl : new Ext.XTemplate(me.tpl);
            // Set this here since the template may access any record values,
            // so we must always run the update for this column
            me.hasCustomRenderer = true;
            me.callParent(arguments);
        },

        defaultRenderer: function(value, meta, record) {
            var data = Ext.apply({}, record.data, record.getAssociatedData());
            return this.tpl.apply(data);
        }
    });