python - Django second m2m relation -

i have 2 models: user , board.

class board(models.model):     title = models.charfield(max_length=20, verbose_name=u'Название')     members = models.manytomanyfield(to='user.user', related_name='boards', verbose_name=u'Участники') 

and want list of users ids, have @ least 1 common board current user. if use filter:

user.objects.filter(boards__members__id=self.request.user.id).values_list('id', flat=true) 

it returns me

[1, 2, 6, 1, 2, 3]

and expect result. when use:

self.request.user.boards.all().values_list('members__id', flat=true) 

it returns me list, contains current user id.

[1, 1]

what happens?

upd

i forgot 1 important thing: there function, like:

def has_related_value(obj, field, channel_val):     filter_by_val = channel_val     property_name, filter_by_val = field.split('__', 1)      attr = getattr(obj, property_name)     if hasattr(attr, 'all'):         return getattr(obj, property_name).filter(**{filter_by_val: channel_val}).exists() 

and called such: has_related_value(self.request.user, 'boards__members__id', self.request.user.id). perhaps, can change return getattr(obj, property_name).filter(**{filter_by_val: channel_val}).exists() obj.__class__.objects.filter(pk=obj.pk, **{field: channel_val}).exists(), don't want change function. so, try find such "field" , "channel_val" values, work. "channel_val" must constant, "field" - "boards__in" , "channel_val" - self.connection.user.boards.all() not work.

it's correct behavior because self.request.user refers current user , why getting current user relationship objects. if want entire user object model need use django user model results