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author | Pratik Naik <pratiknaik@gmail.com> | 2009-08-09 18:39:44 +0100 |
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committer | Pratik Naik <pratiknaik@gmail.com> | 2009-08-09 18:39:44 +0100 |
commit | 2e50110eac439f3d5d292f1519ae7c79991eb91a (patch) | |
tree | 5ba10ebd6ddf0a7487754798993d3862ee9ec3b3 /actionpack/lib/action_controller/metal/rescuable.rb | |
parent | a7f09bc12236d9e7bdc2ee34d5fe3c782d6ad385 (diff) | |
parent | bb1e1776914edf3be7e46b55036c18a64595f919 (diff) | |
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Merge commit 'mainstream/master'
Diffstat (limited to 'actionpack/lib/action_controller/metal/rescuable.rb')
-rw-r--r-- | actionpack/lib/action_controller/metal/rescuable.rb | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/actionpack/lib/action_controller/metal/rescuable.rb b/actionpack/lib/action_controller/metal/rescuable.rb new file mode 100644 index 0000000000..029e643d93 --- /dev/null +++ b/actionpack/lib/action_controller/metal/rescuable.rb @@ -0,0 +1,52 @@ +module ActionController #:nodoc: + # Actions that fail to perform as expected throw exceptions. These + # exceptions can either be rescued for the public view (with a nice + # user-friendly explanation) or for the developers view (with tons of + # debugging information). The developers view is already implemented by + # the Action Controller, but the public view should be tailored to your + # specific application. + # + # The default behavior for public exceptions is to render a static html + # file with the name of the error code thrown. If no such file exists, an + # empty response is sent with the correct status code. + # + # You can override what constitutes a local request by overriding the + # <tt>local_request?</tt> method in your own controller. Custom rescue + # behavior is achieved by overriding the <tt>rescue_action_in_public</tt> + # and <tt>rescue_action_locally</tt> methods. + module Rescue + extend ActiveSupport::Concern + + included do + include ActiveSupport::Rescuable + end + + module ClassMethods + # This can be removed once we can move action(:_rescue_action) into middlewares.rb + # Currently, it does controller.method(:rescue_action), which is hiding the implementation + # difference between the old and new base. + def rescue_action(env) + action(:_rescue_action).call(env) + end + end + + attr_internal :rescued_exception + + private + def method_for_action(action_name) + return action_name if self.rescued_exception = request.env.delete("action_dispatch.rescue.exception") + super + end + + def _rescue_action + rescue_with_handler(rescued_exception) || raise(rescued_exception) + end + + def process_action(*) + super + rescue Exception => exception + self.rescued_exception = exception + _rescue_action + end + end +end |