ThinkPHP3.2中关联查询

[w342718192]

CREATE TABLE `test_avatar` (
  `uid` int(11) unsigned NOT NULL DEFAULT '0',
  `avatar` varchar(255) NOT NULL DEFAULT '',
  PRIMARY KEY (`uid`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
INSERT INTO `test_avatar` VALUES (1,'./Uploads/admin.jpg');

CREATE TABLE `test_pro` (
  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
  `uid` int(11) unsigned NOT NULL DEFAULT '0',
  `name` varchar(255) NOT NULL DEFAULT '',
  PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
INSERT INTO `test_pro` VALUES (1,1,'产品1'),(2,1,'产品2');

CREATE TABLE `test_user` (
  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
  `username` varchar(50) NOT NULL DEFAULT '',
  `tel` int(11) unsigned NOT NULL DEFAULT '0',
  PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
INSERT INTO `test_user` VALUES (1,'admin',110);

如上三个表：用户头像表、产品表、用户表
怎样在模型中建立关联？

class ProModel extends RelationModel{

	protected $_link=array(
		'Avatar'=>array(
			'mapping_type'=>self::HAS_ONE,
			'class_name'=>'Avatar',
			'foreign_key'=>'uid',
			'mapping_fields'=>'avatar',
			'as_fields'=>'avatar',
		),
        )
}

试过用HAS_ONE、BELONGS_TO、HAS_MANY、MANY_TO_MANY都不行，求大神指点

[muchuntang]

Model下建立ProModelModel.class.php

class ProModelModel extends ViewModel {  
		
	public $viewFields = array(     
		'test_avatar'=>array(
				'id',...
			),     
		'test_pror'=>array(
			'id',...
			'_on'=>''
			),      
               'test_pror'=>array(
			'id',...
			'_on'=>''
			), 
	   ); 
}