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author | Pratik Naik <pratiknaik@gmail.com> | 2009-04-22 15:26:03 +0100 |
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committer | Pratik Naik <pratiknaik@gmail.com> | 2009-04-22 15:26:03 +0100 |
commit | 5f3f100ce2d689480da85abc88e5e940cf90189e (patch) | |
tree | 15c1a05a5308a9eea56d7f0889ac46d9cac5b57c /actionpack/lib/action_controller/dispatch/dispatcher.rb | |
parent | d758d996d1b66e2a65640f79f01ce2ac674d7ed5 (diff) | |
parent | ca49299434bc764b667cd86846d892e91a150ef3 (diff) | |
download | rails-5f3f100ce2d689480da85abc88e5e940cf90189e.tar.gz rails-5f3f100ce2d689480da85abc88e5e940cf90189e.tar.bz2 rails-5f3f100ce2d689480da85abc88e5e940cf90189e.zip |
Merge branch 'master' into active_model
Conflicts:
activeresource/lib/active_resource/validations.rb
Diffstat (limited to 'actionpack/lib/action_controller/dispatch/dispatcher.rb')
-rw-r--r-- | actionpack/lib/action_controller/dispatch/dispatcher.rb | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/actionpack/lib/action_controller/dispatch/dispatcher.rb b/actionpack/lib/action_controller/dispatch/dispatcher.rb new file mode 100644 index 0000000000..bb9d8bd063 --- /dev/null +++ b/actionpack/lib/action_controller/dispatch/dispatcher.rb @@ -0,0 +1,96 @@ +module ActionController + # Dispatches requests to the appropriate controller and takes care of + # reloading the app after each request when Dependencies.load? is true. + class Dispatcher + class << self + def define_dispatcher_callbacks(cache_classes) + unless cache_classes + unless self.middleware.include?(ActionDispatch::Reloader) + self.middleware.insert_after(ActionDispatch::Failsafe, ActionDispatch::Reloader) + end + + ActionView::Helpers::AssetTagHelper.cache_asset_timestamps = false + end + + if defined?(ActiveRecord) + to_prepare(:activerecord_instantiate_observers) { ActiveRecord::Base.instantiate_observers } + end + + after_dispatch :flush_logger if Base.logger && Base.logger.respond_to?(:flush) + + to_prepare do + I18n.reload! + end + end + + # Add a preparation callback. Preparation callbacks are run before every + # request in development mode, and before the first request in production + # mode. + # + # An optional identifier may be supplied for the callback. If provided, + # to_prepare may be called again with the same identifier to replace the + # existing callback. Passing an identifier is a suggested practice if the + # code adding a preparation block may be reloaded. + def to_prepare(identifier = nil, &block) + @prepare_dispatch_callbacks ||= ActiveSupport::Callbacks::CallbackChain.new + callback = ActiveSupport::Callbacks::Callback.new(:prepare_dispatch, block, :identifier => identifier) + @prepare_dispatch_callbacks.replace_or_append!(callback) + end + + def run_prepare_callbacks + new.send :run_callbacks, :prepare_dispatch + end + + def reload_application + # Run prepare callbacks before every request in development mode + run_prepare_callbacks + + Routing::Routes.reload + end + + def cleanup_application + # Cleanup the application before processing the current request. + ActiveRecord::Base.reset_subclasses if defined?(ActiveRecord) + ActiveSupport::Dependencies.clear + ActiveRecord::Base.clear_reloadable_connections! if defined?(ActiveRecord) + end + end + + cattr_accessor :middleware + self.middleware = ActionDispatch::MiddlewareStack.new do |middleware| + middlewares = File.join(File.dirname(__FILE__), "middlewares.rb") + middleware.instance_eval(File.read(middlewares)) + end + + include ActiveSupport::Callbacks + define_callbacks :prepare_dispatch, :before_dispatch, :after_dispatch + + def initialize + @app = @@middleware.build(lambda { |env| self._call(env) }) + freeze + end + + def call(env) + @app.call(env) + end + + def _call(env) + begin + run_callbacks :before_dispatch + Routing::Routes.call(env) + rescue Exception => exception + if controller ||= (::ApplicationController rescue Base) + controller.call_with_exception(env, exception).to_a + else + raise exception + end + ensure + run_callbacks :after_dispatch, :enumerator => :reverse_each + end + end + + def flush_logger + Base.logger.flush + end + end +end |