Can someone give instructions to rollback the changes? Specially the ruby-oci8 PPC compilation. I want to configure a full-Intel environment and need to recompile back ruby-oci8 library to the Intel version.
Thanks!

Thanks again for the response and for being a decent resource (Rails/Oracle resources seem to be lacking).

Take care

The OCI8::Cursor problem is a bit more complicated. If you do any straight-up PL/SQL stuff you use cursors a lot: it’s the preferred way for looping through result sets. The Oracle adapter does the same thing. If your returned object is called “foo”, instead of doing foo.each{|f| f.do_something} you have to do something like this:

results = []
while row = foo.fetch
  the_model = MyModel.new
  the_model.attribute_1 = row[1] # use typecasting if you want
  the_model.attribute_2 = row[2] # same here
  results < < the_model
end

For a more formal view of how to approach this, open up the oracle_adapter.rb file (in your ruby gems directory) and check out the select method: it’s got a full typecasting process.

In fact, since you’re already writing your own SQL, there’s a shortcut you could take. To avoid writing custom code that’s simply duplicating the select method, you could do something like this:

results = ActiveRecord::Base.connection.send(:select, my_custom_sql_query)

Like that you get your custom SQL, but you don’t have to mess with the Oracle cursors.

Doing a simple ActiveRecord find I’m getting strange column types returned:

=> #<LRU id: #, name: “name”, volts: #, amps: #,weight:#<BigDecimal:32e2f90,

I also have some elaborate queries in my Rails app so I’m executing the SQL with ActiveRecord::Base.connection().execute(”SQL”)

But when I try to iterate through the returned array of objects I noticed I’m getting an object returned of type OCI8::Cursor.
“undefined method `each’ for #”

Any thoughts?

I’m glad the tutorial helped you out.

My bad, I didn’t adjust the path name of the oracle instant client. My dir. was named differently, so once I fixed that it’s all good.

Thanks a lot for the tutorial!

Get the version of Oracle from SQL*Plus… —————————————————
error messages:
cannot get Oracle version from sqlplus
—————————————————

Any idea how I can solve this?

if e = ENV['ARCHFLAGS']
e
elsif e = ENV['RC_ARCHS']
e.split.map { |a| “-arch #{a}” }.join(’ ‘)
else
‘-arch ppc -arch i386′
end

If you don’t feel brave enough to edit this file, you can simply add this export to your compilation of the instant client:

cd ~/Downloads/ruby-oci8-1.0.0
export ARCHFLAGS=’-arch ppc’ # ADD THIS LINE!
export DYLD_LIBRARY_PATH=/Library/Oracle/instantclient/10.1.0.3
export SQLPATH=/Library/Oracle/instantclient/10.1.0.3
ruby setup.rb config
make
sudo make install

Really, it’s up to how Oracle is building/compiling/releasing the package. That will determine if there’s a hack to make it work on Tiger.

Thanks again.