Kohana 3.3 $ _has_many错误

Question

I'm trying to setup a one-to-many relationship between a User and his Clients. I can access a single client when I set my model like this:

class Model_User extends Model_Auth_User {
    protected $_has_one = array(
        'client' => array(
            'model' => 'Client',
            'foreign_key' => 'user_id')
    );
    [...]

But when I try to switch to $_has_many:

class Model_User extends Model_Auth_User {
    protected $_has_many = array(
        'clients' => array(
            'model' => 'Client',
            'foreign_key' => 'user_id')
    );
    [...]

I get the following error:

Database_Exception [ 1103 ]: Incorrect table name '' [ SELECT COUNT(*) AS `records_found` FROM `` WHERE = '74' AND IN ('4') ]

Can't figure out what's wrong..

Answer 1

I found the problem. Declaring the $_has_many property in my User model was overwriting the same property in Kohana source file, which contained roles and tokens information.

Solved by copying the values from Kohana's Model_Auth_User and adding my property:

protected $_has_many = array(
    'user_tokens' => array('model' => 'User_Token'),
    'roles'       => array('model' => 'Role', 'through' => 'roles_users'),
    'clients'     => array('model' => 'Client', 'foreign_key' => 'user_id'),
);

Answer 2

How does it look in the Client? If you have "Client -> has_one -> User", this shouldn't be a problem.

If you have "Client -> has_many -> User", you need has_many through