# coding=UTF-8
from api.models.market import iter_markets
from api.exceptions import ValidationError


def validate_keys_exists(obj, *keys):
    for key in keys:
        if not key in obj:
            raise ValidationError('No {} is specified'.format(key))
    return True


def validate_territory(value):
    for market in iter_markets():
        if market.territory == value:
            return True
    raise ValidationError('{} is not a valid territory'.format(value))