Comments on: Named Scopes Are Awesome

By: Pathfinder Development » Dealing With A Legacy

Pathfinder Development » Dealing With A Legacy — Tue, 16 Dec 2008 17:56:05 +0000

[...] I did just recently move a legacy site from 2.0.2 to 2.1, primarily for gem bundling and because named scopes are awesome. You need to be careful with this — there aren’t many compatibility issues from 2.0.x to 2.1, but [...]

By: Scott Motte » Blog Archive » Named Scopes

Scott Motte » Blog Archive » Named Scopes — Wed, 27 Aug 2008 23:00:18 +0000

[...] Great resource on named scopes [...]

By: Luca Guidi

Luca Guidi — Tue, 05 Aug 2008 12:03:55 +0000

@Karl lambda allows the lazy evaluation of that code, a block would be ran at loading time..

By: links for 2008-07-10 | iLenceel

links for 2008-07-10 | iLenceel — Thu, 10 Jul 2008 22:49:36 +0000

[...] Pathfinder Development Round Two… [...]

By: DotMana » » News from RoR world

DotMana » » News from RoR world — Thu, 10 Jul 2008 13:19:54 +0000

[...] Named scopes in Rails 2.1 : imagine you can get all your recent active users by user.recent.active ? Take a look to this awesome feature. [...]

By: Drew Blas

Drew Blas — Sat, 28 Jun 2008 00:22:43 +0000

Am I missing something or is: “lower(#{column}) LIKE ?”, “%#{text.downcase}%” opening up the query to sql injection if you pass in something from the user, like: Model.contains(:name, params[:name]). I believe we’d want this instead:
“lower(#{column}) LIKE ?”, “%#{connection.quote_string(text.downcase)}%”

By: Pathfinder Development » More Named Scope Awesomeness

Pathfinder Development » More Named Scope Awesomeness — Fri, 27 Jun 2008 19:19:59 +0000

[...] other words, you can augment the contains scope introduced in last week’s post with a regular find method like [...]

By: Britt

Britt — Thu, 26 Jun 2008 17:50:29 +0000

Um, just a distinction… In all your examples don’t you mean to use User instead of user? Your calling the method on the Model, not an instance? Correct me if I’m wrong.

By: Michael Christenson II

Michael Christenson II — Thu, 26 Jun 2008 14:58:06 +0000

Don’t forget how well this blends into things like pagination:

@users = User.active.by_name.paginate( :page => params[:page], :order => ‘created_on DESC’, :per_page => (params[:users_per_page] || 12) )

For example

I also like how I could pull an array as well (without making a new named_scope or tinkering with sorts):

@users = User.active.by_name[0..3]

I’m glad this made it into production.

By: Darragh Curran

Darragh Curran — Sat, 21 Jun 2008 12:05:25 +0000

Nice post - I’m loving named_scope aswell - realised the other day that it’s easy to use them with has_many associations.

By: links for 2008-06-21 | Libin Pan

links for 2008-06-21 | Libin Pan — Sat, 21 Jun 2008 06:44:08 +0000

[...] Pathfinder Development » Named Scopes Are Awesome Named Scopes Are Awesome (tags: activerecord rails ruby) SHARETHIS.addEntry({ title: “links for 2008-06-21″, url: “http://blog.libinpan.com/2008/06/21/links-for-2008-06-21/” }); [...]

By: Harry Bailey

Harry Bailey — Fri, 20 Jun 2008 23:02:20 +0000

Nice article. I’ve been putting off upgrading my 1.x application, but you’ve just given me more incentive to do so.

By: Karl

Karl — Fri, 20 Jun 2008 22:57:48 +0000

Gotta love ‘em!

I hope for round two, they get rid of the ‘lamba’ nonsense and just accept a &block. Much more rails-ish.