Ext.CrudFormPanel = Ext.extend(Ext.FormPanel, {
  reloadCombos: function(json) {
    var combos = this.findByType('combo');
    Ext.each(combos, function(combo) {
      if (json.data[combo.displayField] && !Ext.isEmpty(combo.getValue())) {
        combo.setRawValue(json.data[combo.displayField]);
      }
    });
  },
  reloadRadioGroups: function(json) {
    var radiogroups = this.findByType('radiogroup');
    Ext.each(radiogroups, function(group) {
      if (json.data[group.name]) {
        group.reloadGroup(json.data[group.name]);
      }
    });
  },
  onActionComplete: function(form, action) {
    if (action.type == 'load') {
      var json = Ext.decode(action.response.responseText);
      this.reloadCombos(json);
      this.reloadRadioGroups(json);
    }
  },
  initComponent: function() {
    Ext.CrudFormPanel.superclass.initComponent.apply(this, arguments);
    this.add({xtype: 'html', id: 'validation-box', html: ''});
    this.getForm().on('actioncomplete', this.onActionComplete, this);
  }
});