Phx.gen.html belongs_to/has_many error

[stefanchrobot]

@montogeek

Please note that there is a category but also category_id, It this ok, to have these 2 values there? Shouldn’t it be only one?

That’s how Ecto works. Whenever you add an association, you’ll get both fields. This works nicely with preloads:

post = Repo.get(Post, 123) |> Repo.preload([:author, :topic])
# You can now access the associated data
foo = post.author.name