2014/05/25-关联模型/HAS_ONE/HAS_MANY/BELONGS_TO

ClClass AdminRelationModel extends RelationModel { protected $tableName="admin"; protected $_link=array(  'userinfo'=>array(   'mapping_type' => HAS_ONE,   //'class_name'=>'userinfo',   'mapping_name'=>'userinfo',   'foreign_key' => 'aid',   'mapping_fields'=>'qq,tel',//不设置输出所有字段   //'as_fields' =>'qq,tel:telephone,aid',//字段映射后save失效  ),  'discount'=>array(   'mapping_type'=>HAS_MANY,   //'class_name'=>'discount',   'mapping_name'=>'discount',   'foreign_key'=>'did',   'mapping_fields'=>'name,number,did,id',   'mapping_limit'=>'3',//输出条数限制   'mapping_order'=>'id ASC',//排序设置  ),  'role'=>array(   'mapping_type'=>BELONGS_TO,   'mapping_name'=>'role',   'foreign_key'=>'usertype',//admin表中的usertype字段   'as_fields' =>'name:role_name',//字段映射  ), );}

  $user=D('AdminRelation');  $userinfo=$user->relation(true)->select();  $data['id']='2';//有ID数据无需where  $data['realname']='youyoushanyu';//修改主表数据时,save()返回1.  $data['userinfo']=array('qq'=>'910099271');//HAS_ONE数据  $data['discount']=array(   array('id'=>'1','number'=>'1010575687'),//HAS_MANY数据  );  if($status=$user->relation(true)->where('id=2')->save($data)){   p($status);echo '成功!';  }else{   p($status);echo '失败';  }