def add_payment(data, db_session, username):
logger.info(LogMsg.START, username)
model_instance = Payment()
populate_basic_data(model_instance, username)
logger.debug(LogMsg.POPULATING_BASIC_DATA)
model_instance.person_id = data.get('person_id')
model_instance.amount = data.get('amount')
model_instance.agent = data.get('agent')
model_instance.details = data.get('details')
model_instance.details.update({'call_back_url': data.get('call_back_url')})
model_instance.order_details = data.get('order_details')
model_instance.shopping_key = data.get('shopping_key')
model_instance.reference_code = data.get('reference_code')
model_instance.used = False
model_instance.status = 'SendToBank'
db_session.add(model_instance)
logger.debug(LogMsg.DB_ADD, model_to_dict(model_instance))
return model_instance
