from api.database import (Model, SurrogatePK, db,
                          Column, reference_col, relationship)
from sqlalchemy import String

from api.target_exchange.models import TargetExchange

class Target(SurrogatePK, Model):
    __tablename__ = "target"
    name = Column(String(255), unique=True, nullable=False)
    routing_key = Column(String(255), nullable=False)
    target_exchange_id = reference_col(TargetExchange.__tablename__, nullable=False)
    exchange = relationship(TargetExchange.__name__, backref=db.backref('targets'))