Hi All, I am wondering if anyone has any information on displaying records based on their timestamp. I want to on the front page of the website display the 3 most recently uploaded games. I imagine I would do this by extracting the three games with the most recent timestamp? Any information/links/tutorials/articles/input will be appreciated. Thanks -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Maybe you don''t know about the limit clause? order by sometimestamp desc limit 3 And at least in Rails 3, limit is explicitly supported so you don''t have to drop to SQL to do this. On Feb 6, 2012, at 11:54 AM, Christopher Jones wrote:> I want to on the front page of the website display the 3 most recently > uploaded games. I imagine I would do this by extracting the three games > with the most recent timestamp?-- Scott Ribe scott_ribe-ZCQMRMivIIdUL8GK/JU1Wg@public.gmane.org http://www.elevated-dev.com/ (303) 722-0567 voice -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
> Maybe you don''t know about the limit clause?I had never previously heard of it but just done some research. Is this the sort of thing you mean? Game.find(:all, :limit => 5, :order=> ''created_at'') ? Thanks -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
If you are constantly using this order clause i recommend you create a
scope in your model.
scope :recent_games, order("created_at desc").limit(5)
then in your controller you call the scope like:
@var = Class.all.recent_games
2012/2/6 Christopher Jones <lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
> > Maybe you don''t know about the limit clause?
>
> I had never previously heard of it but just done some research.
>
> Is this the sort of thing you mean?
>
> Game.find(:all, :limit => 5, :order=> ''created_at'')
>
> ?
>
> Thanks
>
> --
> Posted via http://www.ruby-forum.com/.
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On Feb 6, 2012, at 12:37 PM, Christopher Jones wrote:> Game.find(:all, :limit => 5, :order=> ''created_at'')Roughly, that''s the first 5 created not the last, so you''d need to sort in descending order. These days I''m going new-school: Game.all().order(''created_at desc'').limit(5) -- Scott Ribe scott_ribe-ZCQMRMivIIdUL8GK/JU1Wg@public.gmane.org http://www.elevated-dev.com/ (303) 722-0567 voice -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
> Game.all().order(''created_at desc'').limit(5)So would this go in my index.html as the following? <% Game.all().order(''created_at desc'').limit(5) %> or does it go in the model? Thanks -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
On Feb 6, 2012, at 1:37 PM, Christopher Jones wrote:> <% Game.all().order(''created_at desc'').limit(5) %> > > or does it go in the model?It''ll work in either place. (Of course regardless you need the .each() do |game| part in the template...) But I''d put it in the controller as @recent_games =... Generally stuffing database access into the .html.erb makes things more complicated than they should be. And I would not consider "get the last 5 created..." of anything to be part of the model--unlike say routines to parse or format for standard display. -- Scott Ribe scott_ribe-ZCQMRMivIIdUL8GK/JU1Wg@public.gmane.org http://www.elevated-dev.com/ (303) 722-0567 voice -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Cheers for all the help, it worked a treat. :) -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.