代码：
class UsrModel extends RelationModel {
protected $_li
'Group'=>array(
'mapping_type'=>MANY_TO_MANY,
'class_name'=>'Group',
'mapping_name'=>'Group',
'foreign_key'=>'usr_id',
'relation_foreign_key'=>'group_id',
'relation_table'=>'dm_usr_group'
),
);
}
class UsrAction extends Action {
function add(){
$usr=D("Usr");
$data = array();
//$data["id"]=9;
$data["uname"] = "ThinkPHP9";
$data["Group"] = array(
'gname' =>'name',
);
//$result =$usr->relation(true)->save($data);
$result =$usr->relation(true)->add($data);
pri($usr);
}
}
数据表名：dm_usr 字段：id，uname
关联数据表名：dm_group 字段：id，gname
中间表名：dm_usr_group 字段：usr_id，group_id
最佳答案
