$association['foreignKey'] === false not supported

[korcan]

Linkable does not support defining an alternative join not using the primary key. Linkable should allow setting foreign key to false to alternatively define the relationship, see below:
(http://stackoverflow.com/questions/3814862/cakephp-model-relation)
public $hasOne = array(
'RelatedModel' => array(
'className' => 'RelatedModel',
'foreignKey' => false,
'conditions' => array(
'MainModel.random_field = RelatedModel.some_field'
)
)
}

[korcan]

HERE IS THE PATCH:

See line 84 and the changes below...

                     $_Model->unbindModel(array('belongsTo' => array($Reference->alias)));
                 }
                 if (empty($options['conditions'])) {
                     if ($association['foreignKey'] === false) {
                        $options['conditions'] = $association['conditions'];
                     } elseif ($type === 'belongsTo') {
                         $modelKey = $_Model->escapeField($association['foreignKey']);
                         $referenceKey = $Reference->escapeField($Reference->primaryKey);
                         $options['conditions'] = "{$referenceKey} = {$modelKey}";