service_types.py

class ServiceType(object):
    name = None
    slug = slugify(name) if name else None
    form = None
    service_type_template = 'service_type_template'
    service_template = 'service_template'

    def __str__(self):
        return name

    def __init__(self):
        if not name and form and service_template and service_type_template:
            raise NotImplementedError


class PostgresType(object):
    pass