TOn Wednesday, October 3, 2012 4:45:54 PM UTC-7, Paul Elliott wrote:
> I am trying to build a tree of objects that won't be persisted until a later 
> date. I can't use the `add_*` methods because they require the parent object 
> to be persisted prior to calling them. Is there a way in sequel to link a 
> bunch of unpersisted objects together and persist the whole graph at some 
> later time? For example:
> 
> 
> ```
> class Author
>   one_to_many :books
> end
> 
> 
> class Book
>   many_to_one :author
> end
> 
> 
> author = Author.new # build an author
> author.books << Book.new # add a new unsaved book
> author.books << Book.new # add a new unsaved book
> author.save # save the author and the books
> ```

This is basically what the nested_attributes plugin does, using the 
instance_hooks plugin under the covers.

Jeremy

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