How to get user_id in the 'belongs_to' table

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You can pass it inside angebot_params.

Have a look at this:

Best way to access user_id inside changeset methods and data models

For some of my model methods (like creating or updating entities) I need to access the currently logged in user’s id. I have managed to do this using: in books_controller.ex: def create(conn, %{"book" => book_params}, user) do with {:ok, %Book{} = book} <- Books.create_book(book_params |> Helpers.inject_user_id(user.id)) do conn |> put_status(:created) |> put_resp_header("location", book_path(conn, :show, book)) |> render("show.json", book: book) end end he…