Merge branch 'master' into i18n

3 files changed, 7 insertions, 11 deletions

diff --git a/activerecord/lib/active_record/associations/association_proxy.rb b/activerecord/lib/active_record/associations/association_proxy.rb
index 981be3b1a9..99b8748a48 100644
--- a/activerecord/lib/active_record/associations/association_proxy.rb
+++ b/activerecord/lib/active_record/associations/association_proxy.rb
@@ -213,7 +213,7 @@ module ActiveRecord
 
         # Array#flatten has problems with recursive arrays. Going one level deeper solves the majority of the problems.
         def flatten_deeper(array)
-          array.collect { |element| element.respond_to?(:flatten) ? element.flatten : element }.flatten
+          array.collect { |element| (element.respond_to?(:flatten) && !element.is_a?(Hash)) ? element.flatten : element }.flatten
         end
 
         def owner_quoted_id
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
index 0f60a91ef1..bececf82a0 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -384,12 +384,8 @@ module ActiveRecord
       def add_column_options!(sql, options) #:nodoc:
         sql << " DEFAULT #{quote(options[:default], options[:column])}" if options_include_default?(options)
         # must explicitly check for :null to allow change_column to work on migrations
-        if options.has_key? :null
-          if options[:null] == false
-            sql << " NOT NULL"
-          else
-            sql << " NULL"
-          end
+        if options[:null] == false
+          sql << " NOT NULL"
         end
       end
 
diff --git a/activerecord/test/cases/column_definition_test.rb b/activerecord/test/cases/column_definition_test.rb
index 540f42f4b6..98abc8eac8 100644
--- a/activerecord/test/cases/column_definition_test.rb
+++ b/activerecord/test/cases/column_definition_test.rb
@@ -9,13 +9,13 @@ class ColumnDefinitionTest < ActiveRecord::TestCase
   end
 
   # Avoid column definitions in create table statements like:
-  # `title` varchar(255) DEFAULT NULL NULL
+  # `title` varchar(255) DEFAULT NULL
   def test_should_not_include_default_clause_when_default_is_null
     column = ActiveRecord::ConnectionAdapters::Column.new("title", nil, "varchar(20)")
     column_def = ActiveRecord::ConnectionAdapters::ColumnDefinition.new(
       @adapter, column.name, "string",
       column.limit, column.precision, column.scale, column.default, column.null)
-    assert_equal "title varchar(20) NULL", column_def.to_sql
+    assert_equal "title varchar(20)", column_def.to_sql
   end
 
   def test_should_include_default_clause_when_default_is_present
@@ -23,7 +23,7 @@ class ColumnDefinitionTest < ActiveRecord::TestCase
     column_def = ActiveRecord::ConnectionAdapters::ColumnDefinition.new(
       @adapter, column.name, "string",
       column.limit, column.precision, column.scale, column.default, column.null)
-    assert_equal %Q{title varchar(20) DEFAULT 'Hello' NULL}, column_def.to_sql
+    assert_equal %Q{title varchar(20) DEFAULT 'Hello'}, column_def.to_sql
   end
 
   def test_should_specify_not_null_if_null_option_is_false
@@ -33,4 +33,4 @@ class ColumnDefinitionTest < ActiveRecord::TestCase
       column.limit, column.precision, column.scale, column.default, column.null)
     assert_equal %Q{title varchar(20) DEFAULT 'Hello' NOT NULL}, column_def.to_sql
   end
-end
\ No newline at end of file
+end