gistfile1.txt

(Using Fedora Core 9)

http://wiki.rubyonrails.org/database-support/ms-sql

sudo yum install unixODBC.x86_64 unixODBC-devel.x86_64
sudo yum install freetds.x86_64 freetds-devel.x86_64

sudo gem install dbd-odbc
sudo gem install dbi
sudo gem install activerecord-sqlserver-adapter --source=http://gems.rubyonrails.org

In /etc/freetds.conf
[server_def]
   host = server_ip_address
   port = 1433
   tds version = 8.0
   client charset = UTF-8

In /etc/odbc.ini
[server_def]
 Driver          = FreeTDS
 Description     = ODBC connection via FreeTDS
 Trace           = No
 Servername      = server_def
 Database        = server_db

In /etc/odbcinst.ini
[FreeTDS]
Description     = TDS driver (Sybase/MS SQL)
Driver          = /usr/lib64/libtdsodbc.so
Setup           = /usr/lib64/libtdsS.so
CPTimeout       =
CPReuse         =
FileUsage       = 1

TDS Should be set up fine:
tsql -S server -U user -P password

In production.log, I get this error:
DBI::InterfaceError (Unable to load driver 'ODBC' (underlying error: uninitialized constant DBI::DBD::ODBC))

Solution was to install ruby-odbc:
RubyODBC:
wget http://ch-werner.de/rubyodbc/ruby-odbc-0.9996.tar.gz
tar -xvzpf ruby-odbc-0.9996.tar.gz
cd ruby-odbc-0.9996
ruby extconf.rb
make
sudo make install

But now, you'll get this error:
DBI::DatabaseError (IM002 (0) [unixODBC][Driver Manager]Data source name not found, and no default driver specified)
    /usr/lib64/ruby/gems/1.8/gems/dbd-odbc-0.2.4/lib/dbd/odbc/driver.rb:36:in `connect'
   /usr/lib64/ruby/gems/1.8/gems/dbi-0.4.1/lib/dbi/handles/driver.rb:33:in `connect'
   /usr/lib64/ruby/gems/1.8/gems/dbi-0.4.1/lib/dbi.rb:142:in `connect'
   /usr/lib64/ruby/gems/1.8/gems/activerecord-sqlserver-adapter-1.0.0.9250/lib/active_record/connection_adapters/sqlserver_adapter.rb
:47:in `sqlserver_connection'

This happens to be a problem with the data source. To test this directly:
isql -v datasource username password
[IM002][unixODBC][Driver Manager]Data source name not found, and no default driver specified
[ISQL]ERROR: Could not SQLConnect

I've also tried symlinking both config files to /usr/local/etc:
sudo ln -s /etc/odbc.ini /usr/local/etc/odbc.ini
sudo ln -s /etc/odbcinst.ini /usr/local/etc/odbcinst.ini


Might be helpful to use dltest =>  The Driver=xxx entry points to a shared object which does not export the necessary ODBC API functions (you can test this with dltest included with unixODBC)

@will because I don't know if you get notified