HABTM selection seemingly ignores joinTable - cakephp

Question

UPDATE #2 -- SOLUTION FOUND:
Turns out my use of this lookup:
$this->User->Group->find(....)
was not what I needed. To pull out a user's groups I needed to use:
$this->User->find('all',array('conditions' => array('User.id' => $user_id)));
< /UPDATE #2>< PROBLEM>
I'm attempting to do a HABTM relationship between a Users table and Groups table. The problem is, that I when I issue this call:
$this->User->Group->find('list');
The query that is issued is:
SELECT [Group].[id] AS [Group__id], [Group].[name] AS [Group__name] FROM [groups] AS [Group] WHERE 1 = 1
I can only assume at this point that I have defined my relationship wrong as I would expect behavior to use the groups_users table that is defined on the database as per convention. My relationships:
class User extends AppModel {
var $name = 'User';
//...snip...
var $hasAndBelongsToMany = array(
'Group' => array(
'className' => 'Group',
'foreignKey' => 'user_id',
'associationForeignKey' => 'group_id',
'joinTable' => 'groups_users',
'unique' => true,
)
);
//...snip...
}
class Group extends AppModel {
var $name = 'Group';
var $hasAndBelongsToMany = array ( 'User' => array(
'className' => 'User',
'foreignKey' => 'group_id',
'associationForeignKey' => 'user_id',
'joinTable' => 'groups_users',
'unique' => true,
));
}
Is my understanding of HABTM wrong? How would I implement this Many to Many relationship where I can use CakePHP to query the groups_users table such that a list of groups the currently authenticated user is associated with is returned?
UPDATE
After applying the change suggested by ndm I still receive a large array return (Too big to post) which returns all groups and then a 'User' element if the user has membership to that group. I looked at the query CakePHP uses again:
SELECT
[User].[id] AS [User__id],
[User].[username] AS [User__username],
[User].[password] AS [User__password],
[User].[email] AS [User__email], CONVERT(VARCHAR(20),
[User].[created], 20) AS [User__created], CONVERT(VARCHAR(20),
[User].[modified], 20) AS [User__modified],
[User].[full_name] AS [User__full_name],
[User].[site] AS [User__site],
[GroupsUser].[user_id] AS [GroupsUser__user_id],
[GroupsUser].[group_id] AS [GroupsUser__group_id],
[GroupsUser].[id] AS [GroupsUser__id]
FROM
[users] AS [User] JOIN
[groups_users] AS [GroupsUser] ON (
[GroupsUser].[group_id] IN (1, 2, 3, 4, 5) AND
[GroupsUser].[user_id] = [User].[id]
)
Is there an easy way to refine that such that I only receive the group ids & names for the entries I have membership to? I was thinking of using:
array('conditions'=>array('GroupsUser.user_id'=>$user_id))
...but I receive an sql error on the groups table:
SELECT TOP 1 [Group].[name] AS [Group__name], CONVERT(VARCHAR(20), [Group].[created], 20) AS [Group__created], CONVERT(VARCHAR(20), [Group].[modified], 20) AS [Group__modified], [Group].[id] AS [Group__id] FROM [groups] AS [Group] WHERE [GroupsUser].[user_id] = 36 ORDER BY (SELECT NULL)

Answer 1

I think you just misunderstood what the list find type is ment to do.
The query is totally fine, the list find type is used for retreiving a list of records of a single model only, where the models primary key is used as index, and the display field as value.
http://book.cakephp.org/2.0/en/models/retrieving-your-data.html#find-list