Fix - set vistor on nuldb adapter intialization in order to work with…

… AR 3.2.1

Gemfile.lock

@@ -2,26 +2,27 @@ PATH
   remote: .
   specs:
     activerecord-nulldb-adapter (0.2.1)
-      activerecord (>= 2.0.0, < 3.1)
+      activerecord (>= 2.0.0)
 
 GEM
   remote: http://rubygems.org/
   specs:
-    activemodel (3.0.8)
-      activesupport (= 3.0.8)
-      builder (~> 2.1.2)
-      i18n (~> 0.5.0)
-    activerecord (3.0.8)
-      activemodel (= 3.0.8)
-      activesupport (= 3.0.8)
-      arel (~> 2.0.10)
-      tzinfo (~> 0.3.23)
-    activesupport (3.0.8)
-    arel (2.0.10)
-    builder (2.1.2)
+    activemodel (3.2.1)
+      activesupport (= 3.2.1)
+      builder (~> 3.0.0)
+    activerecord (3.2.1)
+      activemodel (= 3.2.1)
+      activesupport (= 3.2.1)
+      arel (~> 3.0.0)
+      tzinfo (~> 0.3.29)
+    activesupport (3.2.1)
+      i18n (~> 0.6)
+      multi_json (~> 1.0)
+    arel (3.0.2)
+    builder (3.0.0)
     diff-lcs (1.1.2)
-    i18n (0.5.0)
-    rake (0.9.2)
+    i18n (0.6.0)
+    multi_json (1.1.0)
     rspec (2.6.0)
       rspec-core (~> 2.6.0)
       rspec-expectations (~> 2.6.0)
@@ -30,12 +31,11 @@ GEM
     rspec-expectations (2.6.0)
       diff-lcs (~> 1.1.2)
     rspec-mocks (2.6.0)
-    tzinfo (0.3.27)
+    tzinfo (0.3.31)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
   activerecord-nulldb-adapter!
-  rake
   rspec (>= 1.2.9)

ginger_scenarios.rb

@@ -15,7 +15,7 @@ def create_scenario(version)
 
   # Rails 3 only works on Ruby 1.8.7 and 1.9.2
   if %w[1.8.7 1.9.2].include?(RUBY_VERSION)
-    versions += %w(3.1.1 3.1.0 3.0.8)
+    versions += %w(3.2.1 3.1.1 3.1.0 3.0.8)
   end
   versions += %w( 2.3.14 2.3.8 2.3.5 2.3.4 2.3.3 2.3.2 )
   versions += %w(

lib/active_record/connection_adapters/nulldb_adapter.rb

@@ -124,6 +124,7 @@ def initialize(config={})
     @schema_path    = config.fetch(:schema){ "db/schema.rb" }
     @config         = config.merge(:adapter => :nulldb)
     super(nil, @logger)
+    @visitor = Arel::Visitors::ToSql.new self if defined?(Arel::Visitors::ToSql)
   end
 
   # A log of every statement that has been "executed" by this connection adapter