fix boolean casts

lib/active_record/connection_adapters/mysql2_adapter.rb

@@ -68,7 +68,11 @@ module ActiveRecord
       end
 
       def type_cast_code(var_name)
-        nil
+        case type
+        when :boolean then "#{self.class.name}.value_to_boolean(#{var_name})"
+        else
+          nil
+        end
       end
 
       private

spec/active_record/active_record_spec.rb

@@ -13,7 +13,7 @@ describe ActiveRecord::ConnectionAdapters::Mysql2Adapter do
       ActiveRecord::Base.establish_connection(:adapter => 'mysql2')
     }.should_not raise_error(Mysql2::Error)
   end
-  
+
   context "once connected" do
     before(:each) do
       @connection = ActiveRecord::Base.connection
@@ -24,7 +24,7 @@ describe ActiveRecord::ConnectionAdapters::Mysql2Adapter do
       @connection.execute("SELECT NOW() as n").first['n'].class.should eql(Time)
     end
   end
-  
+
   context "columns" do
     before(:all) do
       ActiveRecord::Base.establish_connection(:adapter => 'mysql2', :database => 'test')
@@ -33,6 +33,7 @@ describe ActiveRecord::ConnectionAdapters::Mysql2Adapter do
           `id` mediumint(9) NOT NULL AUTO_INCREMENT,
           `null_test` varchar(10) DEFAULT NULL,
           `bit_test` bit(64) NOT NULL DEFAULT b'1',
+          `boolean_test` tinyint(1) DEFAULT 0,
           `tiny_int_test` tinyint(4) NOT NULL DEFAULT '1',
           `small_int_test` smallint(6) NOT NULL DEFAULT '1',
           `medium_int_test` mediumint(9) NOT NULL DEFAULT '1',
@@ -75,6 +76,7 @@ describe ActiveRecord::ConnectionAdapters::Mysql2Adapter do
       test = Mysql2Test2.new
       test.null_test.should be_nil
       test.bit_test.should eql("b'1'")
+      test.boolean_test.should eql(false)
       test.tiny_int_test.should eql(1)
       test.small_int_test.should eql(1)
       test.medium_int_test.should eql(1)
@@ -103,6 +105,42 @@ describe ActiveRecord::ConnectionAdapters::Mysql2Adapter do
       test.long_blob_test.should be_nil
       test.enum_test.should eql('val1')
       test.set_test.should eql('val1,val2')
+      test.save
+    end
+
+    it "should have correct values when pulled from a db record" do
+      test = Mysql2Test2.last
+      test.null_test.should be_nil
+      test.bit_test.class.should eql(String)
+      test.boolean_test.should eql(false)
+      test.tiny_int_test.should eql(1)
+      test.small_int_test.should eql(1)
+      test.medium_int_test.should eql(1)
+      test.int_test.should eql(1)
+      test.big_int_test.should eql(1)
+      test.float_test.should eql('1.0000'.to_f)
+      test.double_test.should eql('1.0000'.to_f)
+      test.decimal_test.should eql(BigDecimal.new('1.0000'))
+      test.date_test.should eql(Date.parse('2010-01-01'))
+      test.date_time_test.should eql(Time.parse('2010-01-01 00:00:00'))
+      test.timestamp_test.class.should eql(Time)
+      test.time_test.class.should eql(Time)
+      test.year_test.should eql(2010)
+      test.char_test.should eql('abcdefghij')
+      test.varchar_test.should eql('abcdefghij')
+      test.binary_test.should eql('abcdefghij')
+      test.varbinary_test.should eql('abcdefghij')
+      test.tiny_blob_test.should eql("")
+      test.tiny_text_test.should be_nil
+      test.blob_test.should be_nil
+      test.text_test.should be_nil
+      test.medium_blob_test.should be_nil
+      test.medium_text_test.should be_nil
+      test.long_blob_test.should be_nil
+      test.long_text_test.should be_nil
+      test.long_blob_test.should be_nil
+      test.enum_test.should eql('val1')
+      test.set_test.should eql('val1,val2')
     end
   end
 end