14 files changed, 118 insertions, 14 deletions
diff --git a/Gemfile b/Gemfile
index 103dd1bd6c..a11091f075 100644
--- a/Gemfile
+++ b/Gemfile
@@ -47,7 +47,7 @@ instance_eval File.read '.Gemfile' if File.exists? '.Gemfile'
 
 platforms :mri do
   group :test do
-    gem 'ruby-prof' if RUBY_VERSION < '1.9.3'
+    gem 'ruby-prof', '0.10.8' if RUBY_VERSION < '1.9.3'
   end
 end
 
diff --git a/actionpack/lib/action_controller/metal/head.rb b/actionpack/lib/action_controller/metal/head.rb
index a618533d09..671053566d 100644
--- a/actionpack/lib/action_controller/metal/head.rb
+++ b/actionpack/lib/action_controller/metal/head.rb
@@ -20,6 +20,7 @@ module ActionController
       options, status = status, nil if status.is_a?(Hash)
       status ||= options.delete(:status) || :ok
       location = options.delete(:location)
+      content_type = options.delete(:content_type)
 
       options.each do |key, value|
         headers[key.to_s.dasherize.split('-').each { |v| v[0] = v[0].chr.upcase }.join('-')] = value.to_s
@@ -27,7 +28,7 @@ module ActionController
 
       self.status = status
       self.location = url_for(location) if location
-      self.content_type = Mime[formats.first] if formats
+      self.content_type = content_type || (Mime[formats.first] if formats)
       self.response_body = " "
     end
   end
diff --git a/actionpack/lib/action_controller/metal/params_wrapper.rb b/actionpack/lib/action_controller/metal/params_wrapper.rb
index 5c28a8074f..1ab436a205 100644
--- a/actionpack/lib/action_controller/metal/params_wrapper.rb
+++ b/actionpack/lib/action_controller/metal/params_wrapper.rb
@@ -167,8 +167,9 @@ module ActionController
 
         unless options[:include] || options[:exclude]
           model ||= _default_wrap_model
-          if model.respond_to?(:accessible_attributes) && model.accessible_attributes.present?
-            options[:include] = model.accessible_attributes.to_a
+          role = options.has_key?(:as) ? options[:as] : :default
+          if model.respond_to?(:accessible_attributes) && model.accessible_attributes(role).present?
+            options[:include] = model.accessible_attributes(role).to_a
           elsif model.respond_to?(:attribute_names) && model.attribute_names.present?
             options[:include] = model.attribute_names
           end
diff --git a/actionpack/test/controller/params_wrapper_test.rb b/actionpack/test/controller/params_wrapper_test.rb
index c4d2614200..fa1608b9df 100644
--- a/actionpack/test/controller/params_wrapper_test.rb
+++ b/actionpack/test/controller/params_wrapper_test.rb
@@ -174,7 +174,7 @@ class ParamsWrapperTest < ActionController::TestCase
   
   def test_accessible_wrapped_keys_from_matching_model
     User.expects(:respond_to?).with(:accessible_attributes).returns(true)
-    User.expects(:accessible_attributes).twice.returns(["username"])
+    User.expects(:accessible_attributes).with(:default).twice.returns(["username"])
     
     with_default_wrapper_options do
       @request.env['CONTENT_TYPE'] = 'application/json'
@@ -186,7 +186,7 @@ class ParamsWrapperTest < ActionController::TestCase
   def test_accessible_wrapped_keys_from_specified_model
     with_default_wrapper_options do
       Person.expects(:respond_to?).with(:accessible_attributes).returns(true)
-      Person.expects(:accessible_attributes).twice.returns(["username"])
+      Person.expects(:accessible_attributes).with(:default).twice.returns(["username"])
 
       UsersController.wrap_parameters Person
 
@@ -195,6 +195,19 @@ class ParamsWrapperTest < ActionController::TestCase
       assert_parameters({ 'username' => 'sikachu', 'title' => 'Developer', 'person' => { 'username' => 'sikachu' }})
     end
   end
+  
+  def test_accessible_wrapped_keys_with_role_from_specified_model
+    with_default_wrapper_options do
+      Person.expects(:respond_to?).with(:accessible_attributes).returns(true)
+      Person.expects(:accessible_attributes).with(:admin).twice.returns(["username"])
+
+      UsersController.wrap_parameters Person, :as => :admin
+
+      @request.env['CONTENT_TYPE'] = 'application/json'
+      post :parse, { 'username' => 'sikachu', 'title' => 'Developer' }
+      assert_parameters({ 'username' => 'sikachu', 'title' => 'Developer', 'person' => { 'username' => 'sikachu' }})
+    end
+  end
 
   def test_not_wrapping_abstract_model
     User.expects(:respond_to?).with(:accessible_attributes).returns(false)
diff --git a/actionpack/test/controller/render_test.rb b/actionpack/test/controller/render_test.rb
index 85abf3248d..b4ef22ecf7 100644
--- a/actionpack/test/controller/render_test.rb
+++ b/actionpack/test/controller/render_test.rb
@@ -495,6 +495,14 @@ class TestController < ActionController::Base
     render :text => "hello world!"
   end
 
+  def head_created
+    head :created
+  end
+
+  def head_created_with_application_json_content_type
+    head :created, :content_type => "application/json"
+  end
+
   def head_with_location_header
     head :location => "/foo"
   end
@@ -1172,6 +1180,19 @@ class RenderTest < ActionController::TestCase
     assert_equal "<html>\n  <p>Hello</p>\n</html>\n", @response.body
   end
 
+  def test_head_created
+    post :head_created
+    assert_blank @response.body
+    assert_response :created
+  end
+
+  def test_head_created_with_application_json_content_type
+    post :head_created_with_application_json_content_type
+    assert_blank @response.body
+    assert_equal "application/json", @response.content_type
+    assert_response :created
+  end
+
   def test_head_with_location_header
     get :head_with_location_header
     assert_blank @response.body
diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb
index 8c56072337..4b3b30d6ed 100644
--- a/activerecord/lib/active_record/relation.rb
+++ b/activerecord/lib/active_record/relation.rb
@@ -403,6 +403,8 @@ module ActiveRecord
     # If you need to destroy dependent associations or call your <tt>before_*</tt> or
     # +after_destroy+ callbacks, use the +destroy_all+ method instead.
     def delete_all(conditions = nil)
+      raise ActiveRecordError.new("delete_all doesn't support limit scope") if self.limit_value
+
       IdentityMap.repository[symbolized_base_class] = {} if IdentityMap.enabled?
       if conditions
         where(conditions).delete_all
diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb
index bf2807c384..fc39e67e3d 100644
--- a/activerecord/test/cases/relations_test.rb
+++ b/activerecord/test/cases/relations_test.rb
@@ -643,6 +643,10 @@ class RelationTest < ActiveRecord::TestCase
     assert davids.loaded?
   end
 
+  def test_delete_all_limit_error
+    assert_raises(ActiveRecord::ActiveRecordError) { Author.limit(10).delete_all }
+  end
+
   def test_select_argument_error
     assert_raises(ArgumentError) { Developer.select }
   end
diff --git a/activesupport/lib/active_support/core_ext/date_time/calculations.rb b/activesupport/lib/active_support/core_ext/date_time/calculations.rb
index 6f3fd416c1..b759dcc824 100644
--- a/activesupport/lib/active_support/core_ext/date_time/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/date_time/calculations.rb
@@ -81,6 +81,17 @@ class DateTime
     change(:hour => 23, :min => 59, :sec => 59)
   end
 
+  # Returns a new DateTime representing the start of the hour (hh:00:00)
+  def beginning_of_hour
+    change(:min => 0)
+  end
+  alias :at_beginning_of_hour :beginning_of_hour
+
+  # Returns a new DateTime representing the end of the hour (hh:59:59)
+  def end_of_hour
+    change(:min => 59, :sec => 59)
+  end
+
   # 1.9.3 defines + and - on DateTime, < 1.9.3 do not.
   if DateTime.public_instance_methods(false).include?(:+)
     def plus_with_duration(other) #:nodoc:
diff --git a/activesupport/lib/active_support/core_ext/time/calculations.rb b/activesupport/lib/active_support/core_ext/time/calculations.rb
index d845cd1c77..5743254462 100644
--- a/activesupport/lib/active_support/core_ext/time/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/time/calculations.rb
@@ -218,6 +218,21 @@ class Time
     change(:hour => 23, :min => 59, :sec => 59, :usec => 999999.999)
   end
 
+  # Returns a new Time representing the start of the hour (x:00)
+  def beginning_of_hour
+    change(:min => 0)
+  end
+  alias :at_beginning_of_hour :beginning_of_hour
+
+  # Returns a new Time representing the end of the hour, x:59:59.999999 (.999999999 in ruby1.9)
+  def end_of_hour
+    change(
+      :min => 59,
+      :sec => 59,
+      :usec => 999999.999
+    )
+  end
+
   # Returns a new Time representing the start of the month (1st of the month, 0:00)
   def beginning_of_month
     #self - ((self.mday-1).days + self.seconds_since_midnight)
diff --git a/activesupport/test/core_ext/date_time_ext_test.rb b/activesupport/test/core_ext/date_time_ext_test.rb
index 0087163faf..4a9b7c8a4a 100644
--- a/activesupport/test/core_ext/date_time_ext_test.rb
+++ b/activesupport/test/core_ext/date_time_ext_test.rb
@@ -91,6 +91,14 @@ class DateTimeExtCalculationsTest < Test::Unit::TestCase
     assert_equal DateTime.civil(2005,2,4,23,59,59), DateTime.civil(2005,2,4,10,10,10).end_of_day
   end
 
+  def test_beginning_of_hour
+    assert_equal DateTime.civil(2005,2,4,19,0,0), DateTime.civil(2005,2,4,19,30,10).beginning_of_hour
+  end
+
+  def test_end_of_hour
+    assert_equal DateTime.civil(2005,2,4,19,59,59), DateTime.civil(2005,2,4,19,30,10).end_of_hour
+  end
+
   def test_beginning_of_month
     assert_equal DateTime.civil(2005,2,1,0,0,0), DateTime.civil(2005,2,22,10,10,10).beginning_of_month
   end
diff --git a/activesupport/test/core_ext/time_ext_test.rb b/activesupport/test/core_ext/time_ext_test.rb
index 5b0ccb850a..c030611de3 100644
--- a/activesupport/test/core_ext/time_ext_test.rb
+++ b/activesupport/test/core_ext/time_ext_test.rb
@@ -93,6 +93,10 @@ class TimeExtCalculationsTest < ActiveSupport::TestCase
     end
   end
 
+  def test_beginning_of_hour
+    assert_equal Time.local(2005,2,4,19,0,0), Time.local(2005,2,4,19,30,10).beginning_of_hour
+  end
+
   def test_beginning_of_month
     assert_equal Time.local(2005,2,1,0,0,0), Time.local(2005,2,22,10,10,10).beginning_of_month
   end
@@ -127,6 +131,10 @@ class TimeExtCalculationsTest < ActiveSupport::TestCase
     assert_equal Time.local(2007,9,2,23,59,59,999999.999), Time.local(2007,9,02,0,0,0).end_of_week #sunday
   end
 
+  def test_end_of_hour
+    assert_equal Time.local(2005,2,4,19,59,59,999999.999), Time.local(2005,2,4,19,30,10).end_of_hour
+  end
+
   def test_end_of_month
     assert_equal Time.local(2005,3,31,23,59,59,999999.999), Time.local(2005,3,20,10,10,10).end_of_month
     assert_equal Time.local(2005,2,28,23,59,59,999999.999), Time.local(2005,2,20,10,10,10).end_of_month
diff --git a/activesupport/test/core_ext/time_with_zone_test.rb b/activesupport/test/core_ext/time_with_zone_test.rb
index 9d9e411c28..84afee6c84 100644
--- a/activesupport/test/core_ext/time_with_zone_test.rb
+++ b/activesupport/test/core_ext/time_with_zone_test.rb
@@ -513,6 +513,20 @@ class TimeWithZoneTest < Test::Unit::TestCase
     assert_equal "Fri, 31 Dec 1999 23:59:59 EST -05:00", @twz.end_of_day.inspect
   end
 
+  def test_beginning_of_hour
+    utc = Time.utc(2000, 1, 1, 0, 30)
+    twz = ActiveSupport::TimeWithZone.new(utc, @time_zone)
+    assert_equal "Fri, 31 Dec 1999 19:30:00 EST -05:00", twz.inspect
+    assert_equal "Fri, 31 Dec 1999 19:00:00 EST -05:00", twz.beginning_of_hour.inspect
+  end
+
+  def test_end_of_hour
+    utc = Time.utc(2000, 1, 1, 0, 30)
+    twz = ActiveSupport::TimeWithZone.new(utc, @time_zone)
+    assert_equal "Fri, 31 Dec 1999 19:30:00 EST -05:00", twz.inspect
+    assert_equal "Fri, 31 Dec 1999 19:59:59 EST -05:00", twz.end_of_hour.inspect
+  end
+
   def test_since
     assert_equal "Fri, 31 Dec 1999 19:00:01 EST -05:00", @twz.since(1).inspect
   end
diff --git a/railties/guides/source/caching_with_rails.textile b/railties/guides/source/caching_with_rails.textile
index 6419d32c13..0e811a2527 100644
--- a/railties/guides/source/caching_with_rails.textile
+++ b/railties/guides/source/caching_with_rails.textile
@@ -257,7 +257,9 @@ However, it's important to note that query caches are created at the start of an
 
 h3. Cache Stores
 
-Rails provides different stores for the cached data created by action and fragment caches. Page caches are always stored on disk.
+Rails provides different stores for the cached data created by <b>action</b> and <b>fragment</b> caches.
+
+TIP: Page caches are always stored on disk.
 
 h4. Configuration
 
@@ -267,7 +269,7 @@ You can set up your application's default cache store by calling +config.cache_s
 config.cache_store = :memory_store
 </ruby>
 
-Alternatively, you can call +ActionController::Base.cache_store+ outside of a configuration block.
+NOTE: Alternatively, you can call +ActionController::Base.cache_store+ outside of a configuration block.
 
 You can access the cache by calling +Rails.cache+.
 
@@ -294,7 +296,7 @@ h4. ActiveSupport::Cache::MemoryStore
 This cache store keeps entries in memory in the same Ruby process. The cache store has a bounded size specified by the +:size+ options to the initializer (default is 32Mb). When the cache exceeds the allotted size, a cleanup will occur and the least recently used entries will be removed.
 
 <ruby>
-ActionController::Base.cache_store = :memory_store, :size => 64.megabytes
+config.cache_store = :memory_store, :size => 64.megabytes
 </ruby>
 
 If you're running multiple Ruby on Rails server processes (which is the case if you're using mongrel_cluster or Phusion Passenger), then your Rails server process instances won't be able to share cache data with each other. This cache store is not appropriate for large application deployments, but can work well for small, low traffic sites with only a couple of server processes or for development and test environments.
@@ -306,7 +308,7 @@ h4. ActiveSupport::Cache::FileStore
 This cache store uses the file system to store entries. The path to the directory where the store files will be stored must be specified when initializing the cache.
 
 <ruby>
-ActionController::Base.cache_store = :file_store, "/path/to/cache/directory"
+config.cache_store = :file_store, "/path/to/cache/directory"
 </ruby>
 
 With this cache store, multiple server processes on the same host can share a cache. Servers processes running on different hosts could share a cache by using a shared file system, but that set up would not be ideal and is not recommended. The cache store is appropriate for low to medium traffic sites that are served off one or two hosts.
@@ -322,7 +324,7 @@ When initializing the cache, you need to specify the addresses for all memcached
 The +write+ and +fetch+ methods on this cache accept two additional options that take advantage of features specific to memcached. You can specify +:raw+ to send a value directly to the server with no serialization. The value must be a string or number. You can use memcached direct operation like +increment+ and +decrement+ only on raw values. You can also specify +:unless_exist+ if you don't want memcached to overwrite an existing entry.
 
 <ruby>
-ActionController::Base.cache_store = :mem_cache_store, "cache-1.example.com", "cache-2.example.com"
+config.cache_store = :mem_cache_store, "cache-1.example.com", "cache-2.example.com"
 </ruby>
 
 h4. ActiveSupport::Cache::EhcacheStore
@@ -330,7 +332,7 @@ h4. ActiveSupport::Cache::EhcacheStore
 If you are using JRuby you can use Terracotta's Ehcache as the cache store for your application. Ehcache is an open source Java cache that also offers an enterprise version with increased scalability, management, and commercial support. You must first install the jruby-ehcache-rails3 gem (version 1.1.0 or later) to use this cache store.
 
 <ruby>
-ActionController::Base.cache_store = :ehcache_store
+config.cache_store = :ehcache_store
 </ruby>
 
 When initializing the cache, you may use the +:ehcache_config+ option to specify the Ehcache config file to use (where the default is "ehcache.xml" in your Rails config directory), and the :cache_name option to provide a custom name for your cache (the default is rails_cache).
@@ -359,7 +361,7 @@ h4. ActiveSupport::Cache::NullStore
 This cache store implementation is meant to be used only in development or test environments and it never stores anything. This can be very useful in development when you have code that interacts directly with +Rails.cache+, but caching may interfere with being able to see the results of code changes. With this cache store, all +fetch+ and +read+ operations will result in a miss.
 
 <ruby>
-ActionController::Base.cache_store = :null
+config.cache_store = :null_store
 </ruby>
 
 h4. Custom Cache Stores
@@ -369,7 +371,7 @@ You can create your own custom cache store by simply extending +ActiveSupport::C
 To use a custom cache store, simple set the cache store to a new instance of the class.
 
 <ruby>
-ActionController::Base.cache_store = MyCacheStore.new
+config.cache_store = MyCacheStore.new
 </ruby>
 
 h4. Cache Keys
diff --git a/railties/lib/rails/engine/commands.rb b/railties/lib/rails/engine/commands.rb
index b71119af77..ffbc0b4bd6 100644
--- a/railties/lib/rails/engine/commands.rb
+++ b/railties/lib/rails/engine/commands.rb
@@ -34,6 +34,10 @@ The common rails commands available for engines are:
  destroy     Undo code generated with "generate" (short-cut alias: "d")
 
 All commands can be run with -h for more information.
+
+If you want to run any commands that need to be run in context
+of the application, like `rails server` or `rails console`,
+you should do it from application's directory (typically test/dummy).
   EOT
   exit(1)
 end