From: jc <james.cromwell@...>
Date: 2004-12-29T03:26:47+09:00
Subject: [bug] DBD::ODBC

I've run into a small bug with DBD::ODBC. The following code:

require 'dbi'
dbh = DBI.connect("DBI:ODBC:dsn", "user", "pass")
puts dbh.columns('table').collect { |c| c.name }

produced the following error:

/ruby/lib/ruby/site_ruby/1.8/DBD/ODBC/ODBC.rb:127 in 'columns'
undefined method '-' for nil:NilClass (NoMethodError

This relates to the following line in ODBC.rb (line 127)

info['precision'] = row['COLUMN_SIZE'] - (row['DECIMAL_DIGITS'] || 0)

It appears this needs to be changed to the following:

info['precision'] = (row['COLUMN_SIZE'] || 0) - (row['DECIMAL_DIGITS']
|| 0)

In case of situations where COLUMN_SIZE is undefined.