Models and Pivot Tables - phalcon

Question

I have a custom written solution, which I'm porting over to Phalcon. This is my first run with Phalcon, and, though it's easy to use and well documented, I can't seem to find anything about linking models that are linked through a pivot table.
Here's the run down:
I have users. Users have stats. The two are linked with a table called users_stats. The table contains two columns: a user ID and a stat ID. I created a third class called Users_Stats to model after the pivot table.
User Model:
<?php
class Users extends \Phalcon\Mvc\Model {
public function initialize() {
$this->hasMany('stat_id', 'Users_Stats', 'user_id', array('foreignKey' => true));
}
}
Stats Model:
<?php
class Stats extends \Phalcon\Mvc\Model {
public function initialize() {
$this->belongsTo('stat_id', 'Users_Stats', 'id');
}
}
Users_Stats Model:
<?php
class Users_Stats extends \Phalcon\Mvc\Model {
public function initialize() {
$this->hasMany('user_id', 'Users', 'id');
$this->hasMany('stat_id', 'Stats', 'id');
}
}
I just want to be able to gather the stats based on users. I am not sure if all I'm missing is that each of the models needs to belong and hasMany (Stats has many User_Stats && User_Stats has many Stat; etc.). I know I'm missing something though.
Any help would be appreciated! Thanks!

Answer 1

Try this (source):
User Model:
<?php
class Users extends \Phalcon\Mvc\Model {
public function initialize() {
$this->hasMany(
'stat_id',
'Users_Stats',
'user_id',
array('foreignKey' => true)
);
}
}
Stats Model:
<?php
class Stats extends \Phalcon\Mvc\Model {
public function initialize() {
$this->hasMany('stat_id', 'Users_Stats', 'id');
}
}
Users_Stats Model:
<?php
class Users_Stats extends \Phalcon\Mvc\Model {
public function initialize() {
$this->belongsTo('user_id', 'Users', 'id');
$this->belongsTo('stat_id', 'Stats', 'id');
}
}
User 1->many Users_Stats many<-1 Stats

Answer 2

After some playing around, and some great help from Nikolaos Dimopoulos, here's something things I found out.
Classes can't have underscores.
A lookup table's model must belong to each of the classes, as well as must have many of those same classes.
Each class belonging to a lookup table's model must belong to the lookup table's model, as well as must have many of the lookup table's model.
User Model:
<?php
class Users extends \Phalcon\Mvc\Model {
public function initialize() {
$this->belongsTo('id', 'UserStats', 'user_id');
$this->hasMany('user_id', 'UserStats', 'id');
}
}
Stat Model:
<?php
class Stats extends \Phalcon\Mvc\Model {
public function initialize() {
$this->hasMany('stat_id', 'UserStats', 'id');
$this->belongsTo('stat_id', 'UserStats', 'id');
}
}
UserStats Model:
<?php
class UserStats extends \Phalcon\Mvc\Model {
/**
* Set database name as there is no UserStats DB
*
* #return string
*/
public function getSource() {
return 'user_stats';
}
public function initialize() {
$this->belongsTo('user_id', 'Users', 'id');
$this->belongsTo('stat_id', 'Stats', 'id');
$this->hasMany('id', 'Users', 'user_id');
$this->hasMany('id', 'Stats', 'stat_id');
}
}