Thanks Man,
It works nice :)
Regards
On Dec 14, 7:46 pm, Jeremy Weiskotten <rails-mailing-l...@andreas-
s.net> wrote:
> astropanic wrote:
> > Hi,
>
> > I have a application where I have a book model.
> > I have a book controller, it has an action named "index_titles"
>
> > What should I write in the action of this controller to get a list
> > with the distinct first letters for each book model in the view ?
>
> > For example when I have five books:
>
> > "Amazing title"
> > "Bookworm is comming"
> > "Basic for beginners"
> > "Denial of service"
> > "UPS development guide"
>
> > I will have four links in the view with the anchors "A", "B", "D" and
> > "U" respectively.
>
> > I'm a experienced PHP developer, but I'm a newcommer to Ruby. What is
> > the optimal rails way to accomplish this ?
>
> > Regards
>
> Something like this in your controller (assuming you're on Rails 2.1 or
> later):
>
> def index_titles
> @first_letters = Book.all(:select => 'title', :order => 'title').map {
> |book| book.title.first }
> end
>
> This code fetches the title of every book (in alpha order) and extracts
> just the first letter of each title. Be sure to have an index on the
> title column.
>
> Then iterate on @first_letters in your view to render a link to each
> letter.
>
> Hope that helps!
>
> Jeremyhttp://jeronrails.blogspot.com
> --
> Posted viahttp://www.ruby-forum.com/.
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