Re: [Rails] nested attributes with belongs_to

Thanks Bryan for your reply.

For first part of my problem, I am able to figure out the nested attributes with belongs_to.

For second part, I am looking for Rails way solution to my problem.

Using nested attribute. I can able to create Movie if it does not exist. And able to associate it  with song model (movie_id populated correctly) work really good by rails way. I want this behavior.

But when movie already exist. I want to associate that movie id with the new song to be created using accepts_nested_attributes_for.

Thanks!

Butu

On Tue, Feb 22, 2011 at 10:09 PM, Bryan Crossland <bacrossland@gmail.com> wrote:

Butu,

You should look at before_create in ActiveRecord. I think it would be
better if you put on in your Song Model that calls private function to
check whether the passed in Movie name exists or not. If it doesn't,
create it and if it does exist do nothing.

Thanks,

B.

On Mon, Feb 21, 2011 at 9:42 PM, Butu <butu25@gmail.com> wrote:
> Here is my model looks like:-
> Model: Movie
> has_many :songs
> Model: Song
> belongs_to :movie
> I have a songs/new form which contains song name and movie name input field.
> If movie name does not exist it should create a new one else it should use
> already existing one. So this I will come to know only after user enter in
> movie name field.
> Can I achieve this using nested attributes of rails 3?
> Note: I can able to implement the same in has_many association but not in
> this case.
> Thanks!
> Butu
>

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