Class Sequel::ADO::Database
In: lib/sequel/adapters/ado.rb
Parent: Sequel::Database

Methods

connect   dataset   do   execute   new  

Constants

CommandTimeout = opts[:command_timeout] if opts[:command_timeout]
Provider = opts[:provider] if opts[:provider]

Public Class methods

[Source]

    # File lib/sequel/adapters/ado.rb, line 9
 9:       def initialize(opts)
10:         super
11:         case @opts[:conn_string]
12:         when /Microsoft\.(Jet|ACE)\.OLEDB/io
13:           Sequel.ts_require 'adapters/shared/access'
14:           extend Sequel::Access::DatabaseMethods
15:         else
16:           @opts[:driver] ||= 'SQL Server'
17:           case @opts[:driver]
18:           when 'SQL Server'
19:             Sequel.ts_require 'adapters/ado/mssql'
20:             extend Sequel::ADO::MSSQL::DatabaseMethods
21:             set_mssql_unicode_strings
22:           end
23:         end
24:       end

Public Instance methods

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.

[Source]

    # File lib/sequel/adapters/ado.rb, line 46
46:       def connect(server)
47:         opts = server_opts(server)
48:         s = opts[:conn_string] || "driver=#{opts[:driver]};server=#{opts[:host]};database=#{opts[:database]}#{";uid=#{opts[:user]};pwd=#{opts[:password]}" if opts[:user]}"
49:         handle = WIN32OLE.new('ADODB.Connection')
50:         handle.CommandTimeout = opts[:command_timeout] if opts[:command_timeout]
51:         handle.Provider = opts[:provider] if opts[:provider]
52:         handle.Open(s)
53:         handle
54:       end

[Source]

    # File lib/sequel/adapters/ado.rb, line 56
56:       def dataset(opts = nil)
57:         ADO::Dataset.new(self, opts)
58:       end
do(sql, opts={})

Alias for execute

[Source]

    # File lib/sequel/adapters/ado.rb, line 60
60:       def execute(sql, opts={})
61:         synchronize(opts[:server]) do |conn|
62:           begin
63:             r = log_yield(sql){conn.Execute(sql)}
64:             yield(r) if block_given?
65:           rescue ::WIN32OLERuntimeError => e
66:             raise_error(e)
67:           end
68:         end
69:         nil
70:       end

[Validate]