From 67adc0b5b3a0ba5b91866d6b24f4487bf625ea2b Mon Sep 17 00:00:00 2001
From: Jeremy Kemper <jeremy@bitsweat.net>
Date: Sun, 3 Jul 2005 08:32:57 +0000
Subject:  r1617@asus:  jeremy | 2005-07-03 08:23:31 -0700  settle on the
 'slow' MysqlAdapter#select since it means fewer comparisons later.  strip
 trailing whitespace.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1635 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 .../connection_adapters/mysql_adapter.rb           | 56 +++++++++++-----------
 1 file changed, 27 insertions(+), 29 deletions(-)

(limited to 'activerecord/lib/active_record/connection_adapters/mysql_adapter.rb')

diff --git a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
index b026a72093..ad0e490194 100755
--- a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
@@ -1,6 +1,6 @@
 require 'active_record/connection_adapters/abstract_adapter'
 require 'parsedate'
- 
+
 module ActiveRecord
   class Base
     # Establishes a connection to the database that's used by all Active Record objects.
@@ -11,7 +11,7 @@ module ActiveRecord
           require_library_or_gem 'mysql'
         rescue LoadError => cannot_require_mysql
           # Only use the supplied backup Ruby/MySQL driver if no driver is already in place
-          begin 
+          begin
             require 'active_record/vendor/mysql'
             require 'active_record/vendor/mysql411'
           rescue LoadError
@@ -19,27 +19,27 @@ module ActiveRecord
           end
         end
       end
- 
+
       symbolize_strings_in_hash(config)
- 
+
       host     = config[:host]
       port     = config[:port]
       socket   = config[:socket]
       username = config[:username] ? config[:username].to_s : 'root'
       password = config[:password].to_s
- 
+
       if config.has_key?(:database)
         database = config[:database]
       else
         raise ArgumentError, "No database specified. Missing argument: database."
       end
- 
+
       mysql = Mysql.init
       mysql.ssl_set(config[:sslkey], config[:sslcert], config[:sslca], config[:sslcapath], config[:sslcipher]) if config[:sslkey]
       ConnectionAdapters::MysqlAdapter.new(mysql.real_connect(host, username, password, database, port, socket), logger, [host, username, password, database, port, socket])
     end
   end
- 
+
   module ConnectionAdapters
     # The MySQL adapter will work with both Ruby/MySQL, which is a Ruby-based MySQL adapter that comes bundled with Active Record, and with
     # the faster C-based MySQL/Ruby adapter (available both as a gem and from http://www.tmtm.org/en/mysql/ruby/).
@@ -57,10 +57,10 @@ module ActiveRecord
     # * <tt>:sslcapath</tt> -- Necessary to use MySQL with an SSL connection
     # * <tt>:sslcipher</tt> -- Necessary to use MySQL with an SSL connection
     class MysqlAdapter < AbstractAdapter
-      LOST_CONNECTION_ERROR_MESSAGES = [ 
+      LOST_CONNECTION_ERROR_MESSAGES = [
         "Server shutdown in progress",
-        "Broken pipe", 
-        "Lost connection to MySQL server during query", 
+        "Broken pipe",
+        "Lost connection to MySQL server during query",
         "MySQL server has gone away"
       ]
 
@@ -84,7 +84,7 @@ module ActiveRecord
         super(connection, logger)
         @connection_options = connection_options
       end
- 
+
       def adapter_name
         'MySQL'
       end
@@ -93,24 +93,24 @@ module ActiveRecord
       def select_all(sql, name = nil)
         select(sql, name)
       end
- 
+
       def select_one(sql, name = nil)
         result = select(sql, name)
         result.nil? ? nil : result.first
       end
- 
+
       def columns(table_name, name = nil)
-        sql = "SHOW FIELDS FROM #{table_name}" 
+        sql = "SHOW FIELDS FROM #{table_name}"
         columns = []
         execute(sql, name).each { |field| columns << Column.new(field[0], field[4], field[1]) }
         columns
       end
- 
+
       def insert(sql, name = nil, pk = nil, id_value = nil)
         execute(sql, name = nil)
         id_value || @connection.insert_id
       end
- 
+
       def execute(sql, name = nil, retries = 2)
         unless @logger
           @connection.query(sql)
@@ -130,38 +130,38 @@ module ActiveRecord
           raise
         end
       end
- 
+
       def update(sql, name = nil)
         execute(sql, name)
         @connection.affected_rows
       end
- 
+
       alias_method :delete, :update
- 
- 
+
+
       def begin_db_transaction
         execute "BEGIN"
       rescue Exception
         # Transactions aren't supported
       end
- 
+
       def commit_db_transaction
         execute "COMMIT"
       rescue Exception
         # Transactions aren't supported
       end
- 
+
       def rollback_db_transaction
         execute "ROLLBACK"
       rescue Exception
         # Transactions aren't supported
       end
 
- 
+
       def quote_column_name(name)
         "`#{name}`"
       end
- 
+
       def quote_string(string)
         Mysql::quote(string)
       end
@@ -187,16 +187,15 @@ module ActiveRecord
         drop_database(name)
         create_database(name)
       end
- 
+
       def drop_database(name)
         execute "DROP DATABASE IF EXISTS #{name}"
       end
- 
+
       def create_database(name)
         execute "CREATE DATABASE #{name}"
       end
 
-      
       def create_table(name)
         super(name, "ENGINE=InnoDB")
       end
@@ -207,8 +206,7 @@ module ActiveRecord
           result = execute(sql, name)
           rows = []
           all_fields_initialized = result.fetch_fields.inject({}) { |all_fields, f| all_fields[f.name] = nil; all_fields }
-          result.each_hash { |row| rows << all_fields_initialized.merge(row) }
-          #result.each_hash { |row| rows << row }
+          result.each_hash { |row| rows << all_fields_initialized.dup.update(row) }
           result.free
           rows
         end
-- 
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