def add_contact(data, instance_id=""):
if instance_id:
contact = Contact.get_by_id(int(instance_id))
else:
contact = Contact()
if data["name"]:
contact.name = data["name"]
if data["contacts"]:
if contact.contacts:
contact.contacts.append(data["contacts"])
else:
contact.contacts = data["contacts"]
if data["email"]:
contact.email = data["email"]
if data["facebook"]:
contact.facebook = data["facebook"]
if data["twitter"]:
contact.twitter = data["twitter"]
contact.put()
return contact
