Class | Sequel::ADO::Database |
In: |
lib/sequel/adapters/ado.rb
|
Parent: | Sequel::Database |
DISCONNECT_ERROR_RE | = | /Communication link failure/ |
CommandTimeout | = | opts[:command_timeout] if opts[:command_timeout] |
Provider | = | opts[:provider] if opts[:provider] |
# File lib/sequel/adapters/ado.rb, line 11 11: def initialize(opts) 12: super 13: case @opts[:conn_string] 14: when /Microsoft\.(Jet|ACE)\.OLEDB/io 15: Sequel.ts_require 'adapters/shared/access' 16: extend Sequel::Access::DatabaseMethods 17: extend_datasets(Sequel::Access::DatasetMethods) 18: else 19: @opts[:driver] ||= 'SQL Server' 20: case @opts[:driver] 21: when 'SQL Server' 22: Sequel.ts_require 'adapters/ado/mssql' 23: extend Sequel::ADO::MSSQL::DatabaseMethods 24: @dataset_class = ADO::MSSQL::Dataset 25: set_mssql_unicode_strings 26: end 27: end 28: end
In addition to the usual database options, the following options have an effect:
:command_timeout : | Sets the time in seconds to wait while attempting to execute a command before cancelling the attempt and generating an error. Specifically, it sets the ADO CommandTimeout property. If this property is not set, the default of 30 seconds is used. |
:driver : | The driver to use in the ADO connection string. If not provided, a default of "SQL Server" is used. |
:conn_string : | The full ADO connection string. If this is provided, the usual options are ignored. |
:provider : | Sets the Provider of this ADO connection (for example, "SQLOLEDB"). If you don‘t specify a provider, the default one used by WIN32OLE has major problems, such as creating a new native database connection for every query, which breaks things such as temporary tables. |
Pay special attention to the :provider option, as without specifying a provider, many things will be broken. The SQLNCLI10 provider appears to work well if you are connecting to Microsoft SQL Server, but it is not the default as that would break backwards compatability.
# File lib/sequel/adapters/ado.rb, line 50 50: def connect(server) 51: opts = server_opts(server) 52: s = opts[:conn_string] || "driver=#{opts[:driver]};server=#{opts[:host]};database=#{opts[:database]}#{";uid=#{opts[:user]};pwd=#{opts[:password]}" if opts[:user]}" 53: handle = WIN32OLE.new('ADODB.Connection') 54: handle.CommandTimeout = opts[:command_timeout] if opts[:command_timeout] 55: handle.Provider = opts[:provider] if opts[:provider] 56: handle.Open(s) 57: handle 58: end