Counting up in 5's or something similar.

rubyonrails-talk
1

Hi

I'm sure I've read somewhere that you can count up in 'jumps' using ruby?

I've got two times and I want to basically go up in 15 minute jumps without using the whole for loop thing.

Any helpful ideas? All my ruby books are in storage and I can't find anything on google ...but then I'm not sure what I'm looking for!

Thanks in advance.

Code:

<%- (@info[0][1].. @info[0][2]).??? do %>

Darren

2

You probably talk about the step function (http://www.ruby-doc.org/ core/classes/Numeric.src/M000189.html). Always look first the Ruby API.

Regards.

Franco Catena.

On Jun 5, 6:04 pm, "Ruby on Rails: Talk" <dazzaroo...@gmail.com> wrote:

3

On Jun 5, 2009, at 5:04 PM, Ruby on Rails: Talk wrote:

Hi

I'm sure I've read somewhere that you can count up in 'jumps' using ruby?

I've got two times and I want to basically go up in 15 minute jumps without using the whole for loop thing.

Any helpful ideas? All my ruby books are in storage and I can't find anything on google ...but then I'm not sure what I'm looking for!

Thanks in advance.

Code:

<%- (@info[0][1].. @info[0][2]).??? do %>

Darren

Something like Numeric#step

require 'rubygems'

=> true

require 'activesupport'

=> true

start_time = 10.minutes.from_now

=> Fri Jun 05 17:26:49 -0400 2009

end_time = 4.hours.since start_time

=> Fri Jun 05 21:26:49 -0400 2009

start_time.to_i.step(end_time.to_i, 15.minutes) do |sec| puts

Time.at(sec); end Fri Jun 05 17:26:49 -0400 2009 Fri Jun 05 17:41:49 -0400 2009 Fri Jun 05 17:56:49 -0400 2009 Fri Jun 05 18:11:49 -0400 2009 Fri Jun 05 18:26:49 -0400 2009 Fri Jun 05 18:41:49 -0400 2009 Fri Jun 05 18:56:49 -0400 2009 Fri Jun 05 19:11:49 -0400 2009 Fri Jun 05 19:26:49 -0400 2009 Fri Jun 05 19:41:49 -0400 2009 Fri Jun 05 19:56:49 -0400 2009 Fri Jun 05 20:11:49 -0400 2009 Fri Jun 05 20:26:49 -0400 2009 Fri Jun 05 20:41:49 -0400 2009 Fri Jun 05 20:56:49 -0400 2009 Fri Jun 05 21:11:49 -0400 2009 Fri Jun 05 21:26:49 -0400 2009 => 1244237209

You have to go from Time => Fixnum => Time, but you can adjust to your specifics.

-Rob

Rob Biedenharn http://agileconsultingllc.com Rob@AgileConsultingLLC.com

4

Yeah thanks!

Just after I posted it I remembered my pascal (or similar) days and step came into mind ...

(@info[0][1].. @info[0][2]).step(15.minutes) do |i|

Seemed to do the trick nicely!