Thursday, February 19, 2015
Someone suggested that I use local variables like this:
-- <% @pin_albums.each do |pin| %> <%= (last_artist ||= nil) != pin.artist ? (last_artist = pin.artist) : '' %> | <%= link_to pin.album, copy_pin_path(pin) %> <br/> <% end %>This gives me the same result as my original code:
The Beatles | Let It Be
The Beatles | Abbey Road
Bob Dylan | Blood On The Tracks
Bob Dylan | Highway 61 Revisited
I'm not well versed on writing local variables in RoR, so I'm not sure that I'm analyzing this correctly, but I don't see where last_artist is referencing the last iteration of the loop. I was thinking of trying to use @pin_albums.each.with_index and then somehow comparing pin.artist to pin.artist - 1
Any thoughts from everyone would be appreciated.
Thanks!
On Tue, Feb 17, 2015 at 11:07 AM, Colin Law <clanlaw@gmail.com> wrote:
On 17 February 2015 at 15:39, Tony Tambe <tambe257@gmail.com> wrote:
> In my music review app the Pins model has attributes of Pin.artist and
> Pin.album. I'm trying to list each artist reviewed on the site and which
> albums of theirs have been reviewed. Below is what I have so far, but I want
> to do it without repeating the artist name.
>
> Controller:
>
> @pin_albums = Pin.group(:album).order('artist')
>
> View:
>
> <% @pin_albums.each do |pin| %>
> <%= pin.artist %> |
> <%= link_to pin.album, copy_pin_path(pin) %>
> <br/>
> <% end %>
>
> This lists them like this:
>
> The Beatles | Let It Be The Beatles | Abbey Road Bob Dylan | Blood On The
> Tracks Bob Dylan | Highway 61 Revisited
>
> I want to list them like so:
>
> The Beatles | Let It Be
> | Abbey Road
> Bob Dylan | Blood On The Tracks
> | Highway 61 Revisited
Leave the artist cell blank if the artist this time is the same as the
artist last time.
Colin
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