how to setup self relation with same table in yii - php

Question

I am using Yii 1.x version.
I am stuck while setting up a relation with same table using two different model. my scenario is something like this.
There are two tables, user and user_friend_list
Two different model for each table User & UserFriendList.
Following are the fields for my table.
User: id, firstname, lastname.
UserFriendList: id, user_id, friend_user_id
I want to set up relation between two model so that i can fetch all friend information of any user. Kindly suggest me what would be best approach to achieve this???
Note:
The User table stores user information.
User Friend List table store friend list of user.

Answer 1

Try -
In User model -
'friends' => array(self::HAS_MANY, 'UserFriendList', 'user_id'),
In UserFriendList model -
'user' => array(self::BELONGS_TO, 'User', 'user_id'),

Answer 2

Two tables - user & friends
CREATE TABLE IF NOT EXISTS `user` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`username` varchar(20) NOT NULL,
`password` varchar(50) NOT NULL,
`name` varchar(100) NOT NULL,
`email` varchar(100) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=5 ;
CREATE TABLE IF NOT EXISTS `friend` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`user_id` int(11) NOT NULL,
`friend_user_id` int(11) NOT NULL,
`status` varchar(1) NOT NULL,
PRIMARY KEY (`id`),
KEY `user_id` (`user_id`),
KEY `friend_user_id` (`friend_user_id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=7 ;
--
ALTER TABLE `friend`
ADD CONSTRAINT `friend_ibfk_2` FOREIGN KEY (`friend_user_id`) REFERENCES `user` (`id`),
ADD CONSTRAINT `friend_ibfk_1` FOREIGN KEY (`user_id`) REFERENCES `user` (`id`);
Relations I have in my user model
return array(
'friends' => array(self::HAS_MANY, 'Friend', 'friend_user_id'),
'friends1' => array(self::HAS_MANY, 'Friend', 'user_id'),
);
And friend model
return array(
'friendUser' => array(self::BELONGS_TO, 'User', 'friend_user_id'),
'user' => array(self::BELONGS_TO, 'User', 'user_id'),
);
I hope this helps. I found it on yiiforum