Merge commit 'mainstream/master'

Conflicts:

	railties/doc/guides/html/actioncontroller_basics.html
	railties/doc/guides/html/activerecord_validations_callbacks.html
	railties/doc/guides/html/debugging_rails_applications.html
	railties/doc/guides/html/testing_rails_applications.html
	railties/doc/guides/source/actioncontroller_basics/methods.txt
	railties/doc/guides/source/actioncontroller_basics/params.txt
	railties/doc/guides/source/actioncontroller_basics/request_response_objects.txt
	railties/doc/guides/source/actioncontroller_basics/session.txt
	railties/doc/guides/source/activerecord_validations_callbacks.txt
	railties/doc/guides/source/debugging_rails_applications.txt
	railties/doc/guides/source/testing_rails_applications.txt

11 files changed, 61 insertions, 21 deletions

diff --git a/activerecord/CHANGELOG b/activerecord/CHANGELOG
index 4ca062b535..c2299b56ad 100644
--- a/activerecord/CHANGELOG
+++ b/activerecord/CHANGELOG
@@ -1,4 +1,4 @@
-*2.2.1 [RC2 or 2.2 final]*
+*2.2.1 [RC2] (November 14th, 2008)*
 
 * Ensure indices don't flip order in schema.rb #1266 [Jordi Bunster]
 
diff --git a/activerecord/lib/active_record/association_preload.rb b/activerecord/lib/active_record/association_preload.rb
index 6e194ab9b4..69300e5ce5 100644
--- a/activerecord/lib/active_record/association_preload.rb
+++ b/activerecord/lib/active_record/association_preload.rb
@@ -312,7 +312,7 @@ module ActiveRecord
           table_name = klass.quoted_table_name
           primary_key = klass.primary_key
           column_type = klass.columns.detect{|c| c.name == primary_key}.type
-          ids = id_map.keys.uniq.map do |id|
+          ids = id_map.keys.map do |id|
             if column_type == :integer
               id.to_i
             elsif column_type == :float
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb
index c7cb6eb966..7f7819115c 100755
--- a/activerecord/lib/active_record/associations.rb
+++ b/activerecord/lib/active_record/associations.rb
@@ -1609,7 +1609,7 @@ module ActiveRecord
           :class_name, :table_name, :join_table, :foreign_key, :association_foreign_key,
           :select, :conditions, :include, :order, :group, :limit, :offset,
           :uniq,
-          :finder_sql, :delete_sql, :insert_sql,
+          :finder_sql, :counter_sql, :delete_sql, :insert_sql,
           :before_add, :after_add, :before_remove, :after_remove,
           :extend, :readonly,
           :validate
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb
index a36a137f0d..757102eb6b 100755
--- a/activerecord/lib/active_record/base.rb
+++ b/activerecord/lib/active_record/base.rb
@@ -2023,8 +2023,7 @@ module ActiveRecord #:nodoc:
         end
 
         def scoped_methods #:nodoc:
-          scoped_methods = (Thread.current[:scoped_methods] ||= {})
-          scoped_methods[self] ||= []
+          Thread.current[:"#{self}_scoped_methods"] ||= []
         end
 
         def current_scoped_methods #:nodoc:
diff --git a/activerecord/lib/active_record/calculations.rb b/activerecord/lib/active_record/calculations.rb
index 5e33cf1bd4..65512d534a 100644
--- a/activerecord/lib/active_record/calculations.rb
+++ b/activerecord/lib/active_record/calculations.rb
@@ -286,7 +286,7 @@ module ActiveRecord
           case operation
             when 'count' then value.to_i
             when 'sum'   then type_cast_using_column(value || '0', column)
-            when 'avg'   then value && value.to_d
+            when 'avg'   then value && (value.is_a?(Fixnum) ? value.to_f : value).to_d
             else type_cast_using_column(value, column)
           end
         end
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
index 3016c329bd..901b17124c 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
@@ -65,15 +65,23 @@ module ActiveRecord
       # The default ConnectionPool maximum size is 5.
       def initialize(spec)
         @spec = spec
+
         # The cache of reserved connections mapped to threads
         @reserved_connections = {}
+
         # The mutex used to synchronize pool access
         @connection_mutex = Monitor.new
         @queue = @connection_mutex.new_cond
-        # default 5 second timeout
-        @timeout = spec.config[:wait_timeout] || 5
+
+        # default 5 second timeout unless on ruby 1.9
+        @timeout =
+          if RUBY_VERSION < '1.9'
+            spec.config[:wait_timeout] || 5
+          end
+
         # default max pool size to 5
         @size = (spec.config[:pool] && spec.config[:pool].to_i) || 5
+
         @connections = []
         @checked_out = []
       end
@@ -187,7 +195,7 @@ module ActiveRecord
               # try looting dead threads
               clear_stale_cached_connections!
               if @size == @checked_out.size
-                raise ConnectionTimeoutError, "could not obtain a database connection within #{@timeout} seconds.  The pool size is currently #{@size}, perhaps you need to increase it?"
+                raise ConnectionTimeoutError, "could not obtain a database connection#{" within #{@timeout} seconds" if @timeout}.  The max pool size is currently #{@size}; consider increasing it."
               end
             end
           end
@@ -292,10 +300,7 @@ module ActiveRecord
       # and also returns connections to the pool cached by threads that are no
       # longer alive.
       def clear_active_connections!
-        @connection_pools.each_value do |pool|
-          pool.release_connection
-          pool.clear_stale_cached_connections!
-        end
+        @connection_pools.each_value {|pool| pool.release_connection }
       end
 
       # Clears the cache which maps classes
@@ -324,7 +329,8 @@ module ActiveRecord
       # Returns true if a connection that's accessible to this class has
       # already been opened.
       def connected?(klass)
-        conn = retrieve_connection_pool(klass) ? conn.connected? : false
+        conn = retrieve_connection_pool(klass)
+        conn ? conn.connected? : false
       end
 
       # Remove the connection for this class. This will close the active
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
index c5183357a1..f8fa969dc3 100755
--- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
@@ -125,9 +125,8 @@ module ActiveRecord
       end
 
       # Returns true if its safe to reload the connection between requests for development mode.
-      # This is not the case for Ruby/MySQL and it's not necessary for any adapters except SQLite.
       def requires_reloading?
-        false
+        true
       end
 
       # Checks whether the connection to the database is still active (i.e. not stale).
diff --git a/activerecord/lib/active_record/version.rb b/activerecord/lib/active_record/version.rb
index 2479b75789..3c5a9b7df8 100644
--- a/activerecord/lib/active_record/version.rb
+++ b/activerecord/lib/active_record/version.rb
@@ -2,7 +2,7 @@ module ActiveRecord
   module VERSION #:nodoc:
     MAJOR = 2
     MINOR = 2
-    TINY  = 0
+    TINY  = 1
 
     STRING = [MAJOR, MINOR, TINY].join('.')
   end
diff --git a/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb b/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
index 2949f1d304..b5bedf3704 100644
--- a/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_and_belongs_to_many_associations_test.rb
@@ -68,6 +68,16 @@ class DeveloperWithSymbolsForKeys < ActiveRecord::Base
     :foreign_key => "developer_id"
 end
 
+class DeveloperWithCounterSQL < ActiveRecord::Base
+  set_table_name 'developers'
+  has_and_belongs_to_many :projects,
+    :class_name => "DeveloperWithCounterSQL",
+    :join_table => "developers_projects",
+    :association_foreign_key => "project_id",
+    :foreign_key => "developer_id",
+    :counter_sql => 'SELECT COUNT(*) AS count_all FROM projects INNER JOIN developers_projects ON projects.id = developers_projects.project_id WHERE developers_projects.developer_id =#{id}'
+end
+
 class HasAndBelongsToManyAssociationsTest < ActiveRecord::TestCase
   fixtures :accounts, :companies, :categories, :posts, :categories_posts, :developers, :projects, :developers_projects,
            :parrots, :pirates, :treasures, :price_estimates, :tags, :taggings
@@ -739,6 +749,19 @@ class HasAndBelongsToManyAssociationsTest < ActiveRecord::TestCase
     assert_nothing_raised { david.projects.count(:all, :conditions => '1=1') }
   end
 
+  def test_count
+    david = Developer.find(1)
+    assert_equal 2, david.projects.count
+  end
+
+  def test_count_with_counter_sql
+    developer  = DeveloperWithCounterSQL.create(:name => 'tekin')
+    developer.project_ids = [projects(:active_record).id]
+    developer.save
+    developer.reload
+    assert_equal 1, developer.projects.count
+  end
+
   uses_mocha 'mocking Post.transaction' do
     def test_association_proxy_transaction_method_starts_transaction_in_association_class
       Post.expects(:transaction)
diff --git a/activerecord/test/cases/calculations_test.rb b/activerecord/test/cases/calculations_test.rb
index 0fa61500c0..8bd0dd0f6e 100644
--- a/activerecord/test/cases/calculations_test.rb
+++ b/activerecord/test/cases/calculations_test.rb
@@ -25,6 +25,11 @@ class CalculationsTest < ActiveRecord::TestCase
   def test_should_return_nil_as_average
     assert_nil NumericData.average(:bank_balance)
   end
+  
+  def test_type_cast_calculated_value_should_convert_db_averages_of_fixnum_class_to_decimal
+    assert_equal 0, NumericData.send(:type_cast_calculated_value, 0, nil, 'avg')
+    assert_equal 53.0, NumericData.send(:type_cast_calculated_value, 53, nil, 'avg')
+  end
 
   def test_should_get_maximum_of_field
     assert_equal 60, Account.maximum(:credit_limit)
diff --git a/activerecord/test/cases/pooled_connections_test.rb b/activerecord/test/cases/pooled_connections_test.rb
index 3e8c617a89..2649a9358a 100644
--- a/activerecord/test/cases/pooled_connections_test.rb
+++ b/activerecord/test/cases/pooled_connections_test.rb
@@ -28,10 +28,13 @@ class PooledConnectionsTest < ActiveRecord::TestCase
     end
   end
 
-  def test_pooled_connection_checkout
-    checkout_connections
-    assert_equal @connections.length, 2
-    assert_equal @timed_out, 2
+  # Will deadlock due to lack of Monitor timeouts in 1.9
+  if RUBY_VERSION < '1.9'
+    def test_pooled_connection_checkout
+      checkout_connections
+      assert_equal @connections.length, 2
+      assert_equal @timed_out, 2
+    end
   end
 
   def checkout_checkin_connections(pool_size, threads)
@@ -74,6 +77,11 @@ class PooledConnectionsTest < ActiveRecord::TestCase
     conn_pool.checkin(conn)
   end
 
+  def test_not_connected_defined_connection_returns_false
+    ActiveRecord::Base.establish_connection(@connection)
+    assert ! ActiveRecord::Base.connected?
+  end
+
   def test_undefined_connection_returns_false
     old_handler = ActiveRecord::Base.connection_handler
     ActiveRecord::Base.connection_handler = ActiveRecord::ConnectionAdapters::ConnectionHandler.new