I don't think I'm understanding the NestedAttributes plugin fully. What
I'm trying to do is this... I have three tables:
- author
- book
- author_book (join table that maps authors to books, and vice versa...
many to many)
My Author model looks like this:
class Author < Sequel::Model(:author)
many_to_many :book, left_key: :author_id, right_key: :book_id, :join_table =>
:author_book
nested_attributes :bookend
Now, I can create an Author just fine, but the problem then comes with
creating an Author with associated Books. I'm trying to do something like
this:
author = Author.new(:name => "blah", :book_attributes => [{:id => 1}, {:id =>
2}])
author.save
Unfortunately, this does not work, as I get the error
*nested_attributes_setter':
no matching associated object with given primary key (association: book,
pk: ["1"])*. I'm assuming this is because this Author has not been created
yet, and so it doesn't have a primary key to insert into the join table?
However, I can do something like this without error, but I'd rather not...
author = Author.new(:name => "blah")
author.save
author.add_book(Book[1])
author.add_book(Book[2])
So what am I not understanding here? Can I accomplish what I'm wanting to
do or not?
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