Current File : /home/rs/ruby/1.8/lib/ruby/site_ruby/1.8/dbd/Mysql.rb
#--
# Copyright (c) 2001, 2002 Michael Neumann <neumann@s-direktnet.de>
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. The name of the author may not be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
# THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# $Id$
#++
begin
require 'rubygems'
gem 'mysql'
gem 'dbi'
rescue LoadError => e
end
require 'dbi'
require "mysql"
require "thread" # for Mutex
module DBI
module DBD
#
# DBD::Mysql - Database Driver for the MySQL database system.
#
# Requires DBI and the 'mysql' gem or package to work.
#
# Only things that extend DBI's results are documented.
#
module Mysql
VERSION = "0.4.4"
DESCRIPTION = "MySQL DBI DBD, Leverages 'mysql' low-level driver"
MyError = ::MysqlError
#
# returns 'Mysql'
#
# See DBI::TypeUtil#convert for more information.
#
def self.driver_name
"Mysql"
end
DBI::TypeUtil.register_conversion(driver_name) do |obj|
newobj = case obj
when ::DBI::Binary
obj = obj.to_s.gsub(/\\/) { "\\\\" }
obj = obj.to_s.gsub(/'/) { "''" }
"'#{obj}'"
when ::DateTime
"'#{obj.strftime("%Y-%m-%d %H:%M:%S")}'"
when ::Time
"'#{obj.strftime("%H:%M:%S")}'"
when ::Date
"'#{obj.strftime("%Y-%m-%d")}'"
when ::NilClass
"NULL"
else
obj
end
if newobj.object_id == obj.object_id
[newobj, true]
else
[newobj, false]
end
end
end
end
end
#
# Utility Methods for the MySQL DBD.
#
module DBI::DBD::Mysql::Util
private
# Raise exception using information from MysqlError object e.
# For state value, use SQLSTATE value if mysql-ruby defines
# sqlstate method, otherwise nil.
def error(e)
sqlstate = e.respond_to?("sqlstate") ? e.sqlstate : nil
raise DBI::DatabaseError.new(e.message, e.errno, sqlstate)
end
end # module Util
module DBI::DBD::Mysql::Type
#
# Custom handling for DATE types in MySQL. See DBI::Type for more
# information.
#
class Date < DBI::Type::Null
def self.parse(obj)
obj = super
return obj unless obj
case obj.class
when ::Date
return obj
when ::String
return ::Date.strptime(obj, "%Y-%m-%d")
else
return ::Date.parse(obj.to_s) if obj.respond_to? :to_s
return ::Date.parse(obj.to_str) if obj.respond_to? :to_str
return obj
end
end
end
end
require 'dbd/mysql/driver'
require 'dbd/mysql/database'
require 'dbd/mysql/statement'
Mini Shell