Ruby on Rails

On Thu, Feb 19, 2015 at 5:57 AM, TTambe <tambe257@gmail.com> wrote:
> 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 %>

Hint: "scope"

2.1.0 (main):0 > 3.times{ puts (val ||= 0); val += 1 }
0
0
0
=> 3
2.1.0 (main):0 > 3.times{ puts (@val ||= 0); @val += 1 }
0
1
2
=> 3

HTH,
--
Hassan Schroeder ------------------------ hassan.schroeder@gmail.com
http://about.me/hassanschroeder
twitter: @hassan
Consulting Availability : Silicon Valley or remote

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