def export_contacts(self, user_id=None):
cards = list()
q = self.query()
if user_id is not None:
q = q.filter(UserContact.user_id == user_id)
for c in q.all():
cards.append(make_vcard(c))
return cards
def export_contact(self, contact_id):
c = self.get(id)
vcf = make_vcard(c)
return vcf
