has_many and No method error issue

Question

I have two tables: Stores and products. The store model has a has_many :products and the products has a belongs_to :store

I\'m trying to do

Answer 1

You have it backwards. Since you can have many stores, Rails will not return all the products where open: true.

You need to join and lookup the products where the store is open.

Product.joins(:store).where(store: {open: true}).where("created_at <= ?", 1.month.ago)