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| author | Henrik N <henrik@nyh.se> | 2012-03-28 21:05:46 +0200 |
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| committer | Henrik N <henrik@nyh.se> | 2012-03-28 21:07:12 +0200 |
| commit | 4a26b22b462eeaa363245d4251259d94f4f2a9ce (patch) | |
| tree | 15feed16fe37c3505a26f1564435a9cb3dd3b2d5 /guides/source/routing.textile | |
| parent | 6410d2122069a7eced244daacc7fbd033a3c34f9 (diff) | |
| download | rails-4a26b22b462eeaa363245d4251259d94f4f2a9ce.tar.gz rails-4a26b22b462eeaa363245d4251259d94f4f2a9ce.tar.bz2 rails-4a26b22b462eeaa363245d4251259d94f4f2a9ce.zip | |
Routing guide: document lambda constraints and request argument.
Diffstat (limited to 'guides/source/routing.textile')
| -rw-r--r-- | guides/source/routing.textile | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/guides/source/routing.textile b/guides/source/routing.textile index e93b1280e0..78d1783610 100644 --- a/guides/source/routing.textile +++ b/guides/source/routing.textile @@ -535,6 +535,17 @@ TwitterClone::Application.routes.draw do end </ruby> +You can also specify constraints as a lambda: + +<ruby> +TwitterClone::Application.routes.draw do + match "*path" => "blacklist#index", + :constraints => lambda { |request| Blacklist.retrieve_ips.include?(request.remote_ip) } +end +</ruby> + +The +matches?+ method or the lambda is passed the "+request+ object":http://guides.rubyonrails.org/action_controller_overview.html#the-request-object, which means the constraint can check +request.path_parameters+, +request.headers+ or any other property of the request. + h4. Route Globbing Route globbing is a way to specify that a particular parameter should be matched to all the remaining parts of a route. For example |