On May 11, 2010, at 7:47 AM, David Zhu wrote:
Thank you,
I swear this is the last question about this-
Is there a way to go one level deeper, so instead of @totalcount =
Post.comments.count, could I have lets say... ---
@totalcount = Post.comments.davids.count, if comments has many davids?
a Comment might have many davids, but you have comments.
So basically instead of just post has many comments, i also want to
add comments has many davids, and then find out how many davids are in
the Post.
so for each comment, you want the davids, and count up the total
So whats the syntax for that?
DOes that make sense? How could I do something like that? Thanks :)
@davidcount = Post.comments.map {|comment| comment.davids.count}.sum
But it might be more efficient to say something like:
@davidcount = David.count
depending on what you really want to know.
-Rob
Rob Biedenharn
http://agileconsultingllc.com
[email protected]
http://gaslightsoftware.com
[email protected]
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