Class | Sequel::MySQL::Database |
In: |
lib/sequel/adapters/mysql.rb
|
Parent: | Sequel::Database |
MYSQL_DATABASE_DISCONNECT_ERRORS | = | /\A(Commands out of sync; you can't run this command now\z|Can't connect to local MySQL server through socket)/ | Mysql::Error messages that indicate the current connection should be disconnected |
Connect to the database. In addition to the usual database options, the following options have effect:
# File lib/sequel/adapters/mysql.rb, line 93 93: def connect(server) 94: opts = server_opts(server) 95: conn = Mysql.init 96: conn.options(Mysql::OPT_LOCAL_INFILE, "client") 97: if encoding = opts[:encoding] || opts[:charset] 98: # set charset _before_ the connect. using an option instead of "SET (NAMES|CHARACTER_SET_*)" works across reconnects 99: conn.options(Mysql::SET_CHARSET_NAME, encoding) 100: end 101: conn.real_connect( 102: opts[:host] || 'localhost', 103: opts[:user], 104: opts[:password], 105: opts[:database], 106: opts[:port], 107: opts[:socket], 108: Mysql::CLIENT_MULTI_RESULTS + 109: Mysql::CLIENT_MULTI_STATEMENTS + 110: (opts[:compress] == false ? 0 : Mysql::CLIENT_COMPRESS) 111: ) 112: 113: # increase timeout so mysql server doesn't disconnect us 114: conn.query("set @@wait_timeout = #{opts[:timeout] || 2592000}") 115: 116: # By default, MySQL 'where id is null' selects the last inserted id 117: conn.query("set SQL_AUTO_IS_NULL=0") unless opts[:auto_is_null] 118: 119: class << conn 120: attr_accessor :prepared_statements 121: end 122: conn.prepared_statements = {} 123: conn.reconnect = true 124: conn 125: end
Returns instance of Sequel::MySQL::Dataset with the given options.
# File lib/sequel/adapters/mysql.rb, line 128 128: def dataset(opts = nil) 129: MySQL::Dataset.new(self, opts) 130: end
Executes the given SQL using an available connection, yielding the connection if the block is given.
# File lib/sequel/adapters/mysql.rb, line 134 134: def execute(sql, opts={}, &block) 135: if opts[:sproc] 136: call_sproc(sql, opts, &block) 137: elsif sql.is_a?(Symbol) 138: execute_prepared_statement(sql, opts, &block) 139: else 140: synchronize(opts[:server]){|conn| _execute(conn, sql, opts, &block)} 141: end 142: end