Merge commit 'rails/master'

Conflicts:
	activerecord/lib/active_record/calculations.rb
	activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
	activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb

1 files changed, 17 insertions, 8 deletions

diff --git a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
index 9173c8bca3..d3ca7c819f 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
@@ -53,12 +53,7 @@ module ActiveRecord
       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
+      database = config[:database]
 
       # Require the MySQL driver and define Mysql::Result.all_hashes
       unless defined? Mysql
@@ -81,7 +76,7 @@ module ActiveRecord
   module ConnectionAdapters
     class MysqlColumn < Column #:nodoc:
       def extract_default(default)
-        if type == :binary || type == :text
+        if sql_type =~ /blob/i || type == :text
           if default.blank?
             return null ? nil : ''
           else
@@ -95,7 +90,7 @@ module ActiveRecord
       end
 
       def has_default?
-        return false if type == :binary || type == :text #mysql forbids defaults on blob and text columns
+        return false if sql_type =~ /blob/i || type == :text #mysql forbids defaults on blob and text columns
         super
       end
 
@@ -213,6 +208,10 @@ module ActiveRecord
         true
       end
 
+      def supports_primary_key? #:nodoc:
+        true
+      end
+
       def supports_savepoints? #:nodoc:
         true
       end
@@ -544,6 +543,12 @@ module ActiveRecord
         keys.length == 1 ? [keys.first, nil] : nil
       end
 
+      # Returns just a table's primary key
+      def primary_key(table)
+        pk_and_sequence = pk_and_sequence_for(table)
+        pk_and_sequence && pk_and_sequence.first
+      end
+
       def case_sensitive_equality_operator
         "= BINARY"
       end
@@ -576,6 +581,10 @@ module ActiveRecord
             @connection.ssl_set(@config[:sslkey], @config[:sslcert], @config[:sslca], @config[:sslcapath], @config[:sslcipher])
           end
 
+          @connection.options(Mysql::OPT_CONNECT_TIMEOUT, @config[:connect_timeout]) if @config[:connect_timeout]
+          @connection.options(Mysql::OPT_READ_TIMEOUT, @config[:read_timeout]) if @config[:read_timeout]
+          @connection.options(Mysql::OPT_WRITE_TIMEOUT, @config[:write_timeout]) if @config[:write_timeout]
+
           @connection.real_connect(*@connection_options)
 
           # reconnect must be set after real_connect is called, because real_connect sets it to false internally