Rails - May 2010 - can access the through attributes from the many with has_many through?

hi -

if i have

A has_many B
A has_many C through B

Is there any way to retrieve the B attributes once I have a C object?

For example:

class User < ...

has_many :friend_links
has_many :friends, :through => :friend_links, :class => User
...

friends = user.friends
for f in friends
  link = f.friend_link   #i want to get the through object because i
store some metrics here

is this possible?  i realize i can just ignore the through and just
grab the friend_links directly, but i have various types of friends,
some are borne of friend_links, others have a different genesis, and
i''d like to just treat them in one fell swoop, and if one of them
happens to be born of a through, i''ll do one thing, but otherwise,
i''ll do something else.

thanks for any help,
dino

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On 11 May 2010 16:05, dino d.
<dinodorroco-/E1597aS9LQAvxtiuMwx3w@public.gmane.org>
wrote:
> hi -
>
> if i have
>
> A has_many B
> A has_many C through B
>
> Is there any way to retrieve the B attributes once I have a C object?
Assuming that you also have
B has_many C
C belongs_to B

then if you have a C in @c you can say @c.b

Colin
>
> For example:
>
> class User < ...
>
> has_many :friend_links
> has_many :friends, :through => :friend_links, :class => User
> ...
>
> friends = user.friends
> for f in friends
>  link = f.friend_link   #i want to get the through object because i
> store some metrics here
>
> is this possible?  i realize i can just ignore the through and just
> grab the friend_links directly, but i have various types of friends,
> some are borne of friend_links, others have a different genesis, and
> i''d like to just treat them in one fell swoop, and if one of them
> happens to be born of a through, i''ll do one thing, but otherwise,
> i''ll do something else.
>
> thanks for any help,
> dino
>
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>
>
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