diff options
Diffstat (limited to 'activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb')
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb | 101 |
1 files changed, 36 insertions, 65 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb index 568759775b..7bad511c64 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb @@ -1,11 +1,16 @@ # encoding: utf-8 -require 'mysql2' unless defined? Mysql2 +require 'mysql2' module ActiveRecord class Base def self.mysql2_connection(config) config[:username] = 'root' if config[:username].nil? + + if Mysql2::Client.const_defined? :FOUND_ROWS + config[:flags] = Mysql2::Client::FOUND_ROWS + end + client = Mysql2::Client.new(config.symbolize_keys) options = [config[:host], config[:username], config[:password], config[:database], config[:port], config[:socket], 0] ConnectionAdapters::Mysql2Adapter.new(client, logger, options, config) @@ -13,6 +18,9 @@ module ActiveRecord end module ConnectionAdapters + class Mysql2IndexDefinition < Struct.new(:table, :name, :unique, :columns, :lengths) #:nodoc: + end + class Mysql2Column < Column BOOL = "tinyint(1)" def extract_default(default) @@ -34,62 +42,17 @@ module ActiveRecord super end - # Returns the Ruby class that corresponds to the abstract data type. - def klass - case type - when :integer then Fixnum - when :float then Float - when :decimal then BigDecimal - when :datetime then Time - when :date then Date - when :timestamp then Time - when :time then Time - when :text, :string then String - when :binary then String - when :boolean then Object - end - end - - def type_cast(value) - return nil if value.nil? - case type - when :string then value - when :text then value - when :integer then value.to_i rescue value ? 1 : 0 - when :float then value.to_f # returns self if it's already a Float - when :decimal then self.class.value_to_decimal(value) - when :datetime, :timestamp then value.class == Time ? value : self.class.string_to_time(value) - when :time then value.class == Time ? value : self.class.string_to_dummy_time(value) - when :date then value.class == Date ? value : self.class.string_to_date(value) - when :binary then value - when :boolean then self.class.value_to_boolean(value) - else value - end - end - - def type_cast_code(var_name) - case type - when :string then nil - when :text then nil - when :integer then "#{var_name}.to_i rescue #{var_name} ? 1 : 0" - when :float then "#{var_name}.to_f" - when :decimal then "#{self.class.name}.value_to_decimal(#{var_name})" - when :datetime, :timestamp then "#{var_name}.class == Time ? #{var_name} : #{self.class.name}.string_to_time(#{var_name})" - when :time then "#{var_name}.class == Time ? #{var_name} : #{self.class.name}.string_to_dummy_time(#{var_name})" - when :date then "#{var_name}.class == Date ? #{var_name} : #{self.class.name}.string_to_date(#{var_name})" - when :binary then nil - when :boolean then "#{self.class.name}.value_to_boolean(#{var_name})" - else nil - end - end - private def simplified_type(field_type) return :boolean if Mysql2Adapter.emulate_booleans && field_type.downcase.index(BOOL) - return :string if field_type =~ /enum/i or field_type =~ /set/i - return :integer if field_type =~ /year/i - return :binary if field_type =~ /bit/i - super + + case field_type + when /enum/i, /set/i then :string + when /year/i then :integer + when /bit/i then :binary + else + super + end end def extract_limit(sql_type) @@ -234,10 +197,7 @@ module ActiveRecord def active? return false unless @connection - @connection.query 'select 1' - true - rescue Mysql2::Error - false + @connection.ping end def reconnect! @@ -277,7 +237,7 @@ module ActiveRecord # return r # end # end - # + # # # Returns a single value from a record # def select_value(sql, name = nil) # result = execute(sql, name) @@ -285,7 +245,7 @@ module ActiveRecord # first.first # end # end - # + # # # Returns an array of the values of the first column in a select: # # select_values("SELECT id FROM companies LIMIT 3") => [1,2,3] # def select_values(sql, name = nil) @@ -368,6 +328,7 @@ module ActiveRecord end sql end + deprecate :add_limit_offset! # SCHEMA STATEMENTS ======================================== @@ -442,10 +403,11 @@ module ActiveRecord if current_index != row[:Key_name] next if row[:Key_name] == PRIMARY # skip the primary key current_index = row[:Key_name] - indexes << IndexDefinition.new(row[:Table], row[:Key_name], row[:Non_unique] == 0, []) + indexes << Mysql2IndexDefinition.new(row[:Table], row[:Key_name], row[:Non_unique] == 0, [], []) end indexes.last.columns << row[:Column_name] + indexes.last.lengths << row[:Sub_part] end indexes end @@ -453,7 +415,7 @@ module ActiveRecord def columns(table_name, name = nil) sql = "SHOW FIELDS FROM #{quote_table_name(table_name)}" columns = [] - result = execute(sql, :skip_logging) + result = execute(sql) result.each(:symbolize_keys => true, :as => :hash) { |field| columns << Mysql2Column.new(field[:Field], field[:Default], field[:Type], field[:Null] == "YES") } @@ -606,12 +568,21 @@ module ActiveRecord def configure_connection @connection.query_options.merge!(:as => :array) - encoding = @config[:encoding] - execute("SET NAMES '#{encoding}'", :skip_logging) if encoding # By default, MySQL 'where id is null' selects the last inserted id. # Turn this off. http://dev.rubyonrails.org/ticket/6778 - execute("SET SQL_AUTO_IS_NULL=0", :skip_logging) + variable_assignments = ['SQL_AUTO_IS_NULL=0'] + encoding = @config[:encoding] + + # make sure we set the encoding + variable_assignments << "NAMES '#{encoding}'" if encoding + + # increase timeout so mysql server doesn't disconnect us + wait_timeout = @config[:wait_timeout] + wait_timeout = 2592000 unless wait_timeout.is_a?(Fixnum) + variable_assignments << "@@wait_timeout = #{wait_timeout}" + + execute("SET #{variable_assignments.join(', ')}", :skip_logging) end # Returns an array of record hashes with the column names as keys and |