Add site permission to user in Django/Mezzanine -

i have no clue how add permission model in mezzanine:

class sitepermission(models.model):     """     permission relationship between user , site that's     used instead of ``user.is_staff``, admin , inline-editing     access.     """      user = models.onetoonefield(user_model_name, verbose_name=_("author"),     related_name="%(class)ss")     sites = models.manytomanyfield("sites.site", blank=true,                                verbose_name=_("sites"))      class meta:         verbose_name = _("site permission")         verbose_name_plural = _("site permissions") 

how can add specific user in view specific site? have not found documentation regarding this.

here's how it:

from mezzanine.core.models import sitepermission siteperms = sitepermission.objects.create(user=user) siteperms.sites.add(site)