rubyonrailsin

On 13 March 2010 19:20, Milan Dobrota <lists@ruby-forum.com> wrote:
> In this case I have before create hooks in place to fill in some
> attributes.

If you trim the whole of the email you're replying too, we lose all
sense of context....

Anyway... a simple solution is to have a method add a new comment if
the comments array is empty, and then send the call that you pass to
the array (so you can use any Array method as a parameter). More
complex solutions would be to patch AR::Base or maybe Array to do a
similar thing.

# in your Post model
def find_or_create_comment(which)
Post.comments << Comment.create if Post.comments.blank?
Post.comments.send(which.to_s) if Post.comments.respond_to?(which.to_s)
end

That's off the top of my head so it is probably buggy, but might put
you on the tail of something that suits - it relies on the "create"
method actually working, so if the Comment fails validation, it will
break big time.

I think better solutions might be suggested if you describe the
problem that you have that you want to use this as a solution to...

Regards,

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