Class | Sequel::IBMDB::Connection |
In: |
lib/sequel/adapters/ibmdb.rb
|
Parent: | Object |
Wraps an underlying connection to DB2 using IBM_DB.
prepared_statements | [RW] | A hash with prepared statement name symbol keys, where each value is a two element array with an sql string and cached Statement value. |
Create the underlying IBM_DB connection.
# File lib/sequel/adapters/ibmdb.rb, line 41 41: def initialize(connection_string) 42: @conn = IBM_DB.connect(connection_string, '', '') 43: self.autocommit = true 44: @prepared_statements = {} 45: end
Check whether the connection is in autocommit state or not.
# File lib/sequel/adapters/ibmdb.rb, line 48 48: def autocommit 49: IBM_DB.autocommit(@conn) == 1 50: end
Turn autocommit on or off for the connection.
# File lib/sequel/adapters/ibmdb.rb, line 53 53: def autocommit=(value) 54: IBM_DB.autocommit(@conn, value ? IBM_DB::SQL_AUTOCOMMIT_ON : IBM_DB::SQL_AUTOCOMMIT_OFF) 55: end
Commit the currently outstanding transaction on this connection.
# File lib/sequel/adapters/ibmdb.rb, line 63 63: def commit 64: IBM_DB.commit(@conn) 65: end
Return the related error message for the connection.
# File lib/sequel/adapters/ibmdb.rb, line 68 68: def error_msg 69: IBM_DB.getErrormsg(@conn, IBM_DB::DB_CONN) 70: end
Execute the related prepared statement on the database with the given arguments.
# File lib/sequel/adapters/ibmdb.rb, line 82 82: def execute_prepared(ps_name, *values) 83: stmt = @prepared_statements[ps_name].last 84: res = stmt.execute(*values) 85: unless res 86: raise Error, "Error executing statement #{ps_name}: #{error_msg}" 87: end 88: stmt 89: end
Prepare a statement with the given sql on the database, and cache the prepared statement value by name.
# File lib/sequel/adapters/ibmdb.rb, line 93 93: def prepare(sql, ps_name) 94: if stmt = IBM_DB.prepare(@conn, sql) 95: ps_name = ps_name.to_sym 96: stmt = Statement.new(stmt) 97: @prepared_statements[ps_name] = [sql, stmt] 98: else 99: err = error_msg 100: err = "Error preparing #{ps_name} with SQL: #{sql}" if error_msg.nil? || error_msg.empty? 101: raise Error, err 102: end 103: end