how to use backref in peewee

Question

basically im trying to write a index route that returns the posts of a business that a user is subscribed to the last line is throwing an error for the backref (business.posts)

# query that finds all the subscriptions of the logged in user
subscriptions_query = models.Subscription.select().join(models.User).where(models.User.id == current_user.id)
# gets the businesses being followed from the subscriptions
businesses_being_followed = [subscription.following for subscription in subscriptions_query]
post_dicts = [model_to_dict(business.posts) for business in businesses_being_followed]

this is my posts model

class Post(BaseModel):
business = ForeignKeyField(Business, backref='posts')
image = CharField()
content = CharField()
date = DateTimeField(default=datetime.datetime.now)

Answer 1

Your example is REALLY inefficient.

Can you just do:

(Post
 .select()
 .join(Business)
 .join(Subscription)
 .where(Subscription.user == the_user_id))