text: Ext.define('oa.model.User', {
      extend: 'Ext.data.Model',
  
      fields: [{
          name: 'id',
          type: 'int'
      },
      'username',
      'mobile',
      'departmentids',
      'positionids',
      'roomId',
      'remark',
      {
          name: 'createTime',
          convert: function(v, record) {
              return Ext.Date.format(new Date(v), 'Y-m-d H:i:s');
          }
      }]
  });