freewebwithme
Product and Category relation in Database?
Hello.
I am lost whileI am working on database design. So I need your help. 
It might be simple but I can’t figure it out.
What I want to do is Product and Category relation
Product has 1 category.
Category has many products.
So I can do like this
product = Repo.one(from p in Product, preload: [:category])
product.category.name
query = from p in Product,
join: c in Category,
on: c.name == "Food",
select: p
So I can get products that has “Food” category.
Which relation should I use?
one to many?
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Marked As Solved
kokolegorille
Yes, one to many with Product holding a category_id field.
But your join is not functional, maybe like this (not tested)
Last Post!
freewebwithme
Thanks!