Rails - Aug 2009 - Do a set of records have the same value for one of the fields?

Hi Folks,
I''m looking for an elegant Ruby one-liner...

I have a set of records in my database that I want to check to see if
the :description field is identical.

And, because it''s Thursday morning (where I live), I would like to do
it as elegantly and as one-line-er-ly as I can

Something like...

records.map(&:description).all?(&:==)

which, doesn''t work

I''ll go ahead and split it into a couple of lines, and make sure that
all of the descriptions match record[0].descriptions, but I am certain
there is a more elegant solution than this.

--wpd

On 27 Aug 2009, at 15:09, Patrick Doyle wrote:
>
> Hi Folks,
> I''m looking for an elegant Ruby one-liner...
>
> I have a set of records in my database that I want to check to see if
> the :description field is identical.
>
> And, because it''s Thursday morning (where I live), I would like to
do
> it as elegantly and as one-line-er-ly as I can
>
> Something like...
>
> records.map(&:description).all?(&:==)
>
Well if you''re desperate for a one-liner  
records.map(&:description).uniq.length == 1

Fred
> which, doesn''t work
>
> I''ll go ahead and split it into a couple of lines, and make sure
that
> all of the descriptions match record[0].descriptions, but I am certain
> there is a more elegant solution than this.
>
> --wpd
>
> >

>> records.map(&:description).all?(&:==)
nice... I was trying to figure out something with #inject/#sum, but
that looks great.

--wpd