mysql tests are mostly passing

activerecord/lib/active_record/connection_adapters/mysql_adapter.rb

@@ -3,6 +3,27 @@ require 'active_support/core_ext/kernel/requires'
 require 'active_support/core_ext/object/blank'
 require 'set'
 
+begin
+  require 'mysql'
+rescue LoadError
+  raise "!!! Missing the mysql gem. Add it to your Gemfile: gem 'mysql'"
+end
+
+unless defined?(Mysql::Result) && Mysql::Result.method_defined?(:each_hash)
+  raise "!!! Outdated mysql gem. Upgrade to 2.8.1 or later. In your Gemfile: gem 'mysql', '2.8.1'. Or use gem 'mysql2'"
+end
+
+class Mysql
+  class Time
+    ###
+    # This monkey patch is for test_additional_columns_from_join_table
+
+    def to_date
+      Date.new(year, month, day)
+    end
+  end
+end
+
 module ActiveRecord
   class Base
     # Establishes a connection to the database that's used by all Active Record objects.
@@ -15,18 +36,6 @@ module ActiveRecord
       password = config[:password].to_s
       database = config[:database]
 
-      unless defined? Mysql
-        begin
-          require 'mysql'
-        rescue LoadError
-          raise "!!! Missing the mysql2 gem. Add it to your Gemfile: gem 'mysql2'"
-        end
-
-        unless defined?(Mysql::Result) && Mysql::Result.method_defined?(:each_hash)
-          raise "!!! Outdated mysql gem. Upgrade to 2.8.1 or later. In your Gemfile: gem 'mysql', '2.8.1'. Or use gem 'mysql2'"
-        end
-      end
-
       mysql = Mysql.init
       mysql.ssl_set(config[:sslkey], config[:sslcert], config[:sslca], config[:sslcapath], config[:sslcipher]) if config[:sslca] || config[:sslkey]
 
@@ -39,6 +48,30 @@ module ActiveRecord
 
   module ConnectionAdapters
     class MysqlColumn < Column #:nodoc:
+      class << self
+        def string_to_time(value)
+          return super unless Mysql::Time === value
+          new_time(
+            value.year,
+            value.month,
+            value.day,
+            value.hour,
+            value.minute,
+            value.second,
+            value.second_part)
+        end
+
+        def string_to_dummy_time(v)
+          return super unless Mysql::Time === v
+          new_time(2000, 01, 01, v.hour, v.minute, v.second, v.second_part)
+        end
+
+        def string_to_date(v)
+          return super unless Mysql::Time === v
+          new_date(v.year, v.month, v.day)
+        end
+      end
+
       def extract_default(default)
         if sql_type =~ /blob/i || type == :text
           if default.blank?
@@ -280,6 +313,24 @@ module ActiveRecord
         rows
       end
 
+      def exec(sql, name = 'SQL', bind_values = [])
+        log(sql, name) do
+          stmt = @connection.prepare(sql)
+          stmt.execute(*bind_values.map { |col, val|
+            col ? col.type_cast(val) : val
+          })
+          result = nil
+          if metadata = stmt.result_metadata
+            cols   = metadata.fetch_fields.map { |field| field.name }
+            values = []
+            stmt.each { |thing| values << thing }
+            result = ActiveRecord::Result.new(cols, values)
+          end
+          stmt.close
+          result
+        end
+      end
+
       # Executes an SQL query and returns a MySQL::Result object. Note that you have to free
       # the Result object after you're done using it.
       def execute(sql, name = nil) #:nodoc:
@@ -614,12 +665,9 @@ module ActiveRecord
           execute("SET SQL_AUTO_IS_NULL=0", :skip_logging)
         end
 
-        def select(sql, name = nil)
+        def select(sql, name = nil, binds = [])
           @connection.query_with_result = true
-          result = execute(sql, name)
-          rows = []
-          result.each_hash { |row| rows << row }
-          result.free
+          rows = exec(sql, name, binds).to_a
           @connection.more_results && @connection.next_result    # invoking stored procedures with CLIENT_MULTI_RESULTS requires this to tidy up else connection will be dropped
           rows
         end

activerecord/test/cases/adapters/mysql/connection_test.rb

@@ -43,6 +43,64 @@ class MysqlConnectionTest < ActiveRecord::TestCase
     assert @connection.active?
   end
 
+  def test_bind_value_substitute
+    bind_param = @connection.substitute_for('foo', [])
+    assert_equal Arel.sql('?'), bind_param
+  end
+
+  def test_exec_no_binds
+    @connection.exec('drop table if exists ex')
+    @connection.exec(<<-eosql)
+      CREATE TABLE `ex` (`id` int(11) DEFAULT NULL auto_increment PRIMARY KEY,
+        `data` varchar(255))
+    eosql
+    result = @connection.exec('SELECT id, data FROM ex')
+    assert_equal 0, result.rows.length
+    assert_equal 2, result.columns.length
+    assert_equal %w{ id data }, result.columns
+
+    @connection.exec('INSERT INTO ex (id, data) VALUES (1, "foo")')
+    result = @connection.exec('SELECT id, data FROM ex')
+    assert_equal 1, result.rows.length
+    assert_equal 2, result.columns.length
+
+    assert_equal [[1, 'foo']], result.rows
+  end
+
+  def test_exec_with_binds
+    @connection.exec('drop table if exists ex')
+    @connection.exec(<<-eosql)
+      CREATE TABLE `ex` (`id` int(11) DEFAULT NULL auto_increment PRIMARY KEY,
+        `data` varchar(255))
+    eosql
+    @connection.exec('INSERT INTO ex (id, data) VALUES (1, "foo")')
+    result = @connection.exec(
+      'SELECT id, data FROM ex WHERE id = ?', nil, [[nil, 1]])
+
+    assert_equal 1, result.rows.length
+    assert_equal 2, result.columns.length
+
+    assert_equal [[1, 'foo']], result.rows
+  end
+
+  def test_exec_typecasts_bind_vals
+    @connection.exec('drop table if exists ex')
+    @connection.exec(<<-eosql)
+      CREATE TABLE `ex` (`id` int(11) DEFAULT NULL auto_increment PRIMARY KEY,
+        `data` varchar(255))
+    eosql
+    @connection.exec('INSERT INTO ex (id, data) VALUES (1, "foo")')
+    column = @connection.columns('ex').find { |col| col.name == 'id' }
+
+    result = @connection.exec(
+      'SELECT id, data FROM ex WHERE id = ?', nil, [[column, '1-fuu']])
+
+    assert_equal 1, result.rows.length
+    assert_equal 2, result.columns.length
+
+    assert_equal [[1, 'foo']], result.rows
+  end
+
   # Test that MySQL allows multiple results for stored procedures
   if Mysql.const_defined?(:CLIENT_MULTI_RESULTS)
     def test_multi_results

activerecord/test/cases/attribute_methods_test.rb

@@ -103,7 +103,7 @@ class AttributeMethodsTest < ActiveRecord::TestCase
   if current_adapter?(:MysqlAdapter)
     def test_read_attributes_before_type_cast_on_boolean
       bool = Boolean.create({ "value" => false })
-      assert_equal "0", bool.reload.attributes_before_type_cast["value"]
+      assert_equal 0, bool.reload.attributes_before_type_cast["value"]
     end
   end
 
@@ -112,7 +112,7 @@ class AttributeMethodsTest < ActiveRecord::TestCase
       developer = Developer.find(:first)
       # Oracle adapter returns Time before type cast
       unless current_adapter?(:OracleAdapter)
-        assert_equal developer.created_at.to_s(:db) , developer.attributes_before_type_cast["created_at"]
+        assert_equal developer.created_at.to_s(:db) , developer.attributes_before_type_cast["created_at"].to_s
       else
         assert_equal developer.created_at.to_s(:db) , developer.attributes_before_type_cast["created_at"].to_s(:db)
 
@@ -121,7 +121,7 @@ class AttributeMethodsTest < ActiveRecord::TestCase
         assert_equal developer.created_at, nil
 
         developer.created_at = "2010-03-21 21:23:32"
-        assert_equal developer.created_at_before_type_cast, "2010-03-21 21:23:32"
+        assert_equal developer.created_at_before_type_cast.to_s, "2010-03-21 21:23:32"
         assert_equal developer.created_at, Time.parse("2010-03-21 21:23:32")
       end
     end