Class: Sequel::ADO::Database

Inherits:
Database show all
Defined in:
lib/sequel/adapters/ado.rb

Constant Summary

Constants inherited from Database

Database::ADAPTERS, Database::AUTOINCREMENT, Database::CASCADE, Database::COMMA_SEPARATOR, Database::MYSQL_TIMESTAMP_RE, Database::NOT_NULL, Database::NO_ACTION, Database::NULL, Database::POSTGRES_DEFAULT_RE, Database::PRIMARY_KEY, Database::RESTRICT, Database::SET_DEFAULT, Database::SET_NULL, Database::SQL_BEGIN, Database::SQL_COMMIT, Database::SQL_RELEASE_SAVEPOINT, Database::SQL_ROLLBACK, Database::SQL_ROLLBACK_TO_SAVEPOINT, Database::SQL_SAVEPOINT, Database::STRING_DEFAULT_RE, Database::TEMPORARY, Database::TRANSACTION_BEGIN, Database::TRANSACTION_COMMIT, Database::TRANSACTION_ROLLBACK, Database::UNDERSCORE, Database::UNIQUE, Database::UNSIGNED

Instance Attribute Summary

Attributes inherited from Database

#default_schema, #loggers, #opts, #pool, #prepared_statements

Instance Method Summary collapse

Methods inherited from Database

#<<, #[], adapter_class, adapter_scheme, #add_column, #add_index, #alter_table, #call, #cast_type_literal, connect, #create_or_replace_view, #create_table, #create_table!, #create_table?, #create_view, #database_type, #disconnect, #drop_column, #drop_index, #drop_table, #drop_view, #dump_indexes_migration, #dump_schema_migration, #dump_table_schema, #execute_ddl, #execute_dui, #execute_insert, #fetch, #from, #get, #identifier_input_method, identifier_input_method, #identifier_input_method=, identifier_input_method=, #identifier_output_method, identifier_output_method, identifier_output_method=, #identifier_output_method=, #inspect, #literal, #log_info, #logger=, #query, #quote_identifiers=, quote_identifiers=, #quote_identifiers?, #rename_column, #rename_table, #schema, #select, #serial_primary_key_options, #set_column_default, #set_column_type, single_threaded=, #single_threaded?, #supports_savepoints?, #synchronize, #table_exists?, #test_connection, #transaction, #typecast_value, #uri, #url

Methods included from Metaprogramming

#meta_def

Constructor Details

#initialize(opts) ⇒ Database

Returns a new instance of Database.



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# File 'lib/sequel/adapters/ado.rb', line 17

def initialize(opts)
  super(opts)
  opts[:driver] ||= 'SQL Server'
  case opts[:driver]
  when 'SQL Server'
    Sequel.require 'adapters/shared/mssql'
    extend Sequel::MSSQL::DatabaseMethods
  end
end

Instance Method Details

#connect(server) ⇒ Object

Connect to the database. In addition to the usual database options, the following option has 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.

  • :provider - Sets the Provider of this ADO connection (for example, “SQLOLEDB”)



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# File 'lib/sequel/adapters/ado.rb', line 36

def connect(server)
  opts = server_opts(server)
  s = "driver=#{opts[:driver]};server=#{opts[:host]};database=#{opts[:database]}#{";uid=#{opts[:user]};pwd=#{opts[:password]}" if opts[:user]}"
  handle = WIN32OLE.new('ADODB.Connection')
  handle.CommandTimeout = opts[:command_timeout] if opts[:command_timeout]
  handle.Provider = opts[:provider] if opts[:provider]
  handle.Open(s)
  handle
end

#dataset(opts = nil) ⇒ Object 



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# File 'lib/sequel/adapters/ado.rb', line 46

def dataset(opts = nil)
  ADO::Dataset.new(self, opts)
end

#execute(sql, opts = {}) ⇒ Object Also known as: do 



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# File 'lib/sequel/adapters/ado.rb', line 50

def execute(sql, opts={})
  log_info(sql)
  synchronize(opts[:server]) do |conn|
    r = conn.Execute(sql)
    yield(r) if block_given?
    r
  end
end