问CakePHP:绑定模型不工作

EN

$this->User->bindModel(
        array(
            'hasAndBelongsToMany' => 
            array(
                'Profession' =>
                    array(
                        'className'              => 'Profession',
                        'joinTable'              => 'professions_users',
                        'foreignKey'             => 'user_id',
                        'associationForeignKey'  => 'profession_id',
                        'unique'                 => true,
                        'conditions'             => '',
                        'fields'                 => '',
                        'order'                  => '',
                        'limit'                  => '',
                        'offset'                 => '',
                        'finderQuery'            => '',
                        'deleteQuery'            => '',
                        'insertQuery'            => ''
                    )
                )
            )
        );