/*
*
*  Blog 根据条件得到相应字段结果集
*
* @Param  array  conditions
*      array  fields
* @Return  array
*
*/
function getBlogsByCon($conditions = array(),$fields = null){
  return $this->find('all',array(
      'conditions'=>ife(count($conditions) > 0, am(array('`Blog`.`status` = 1'),$conditions), array('`Blog`.`status` = 1')),
      'fields'=>$fields,
      'order'=>'`Blog`.`created` DESC',
      'page'=>1,
      'recursive'=>0));
}