[Rails] Database Adapters Not Found

[Jeremy Kemper]

Curt Sampson wrote:
> The adapter_method is "postgresql_connection", which seems right since
> I set the config/database.yml to use postgresql. self of course is
> ActiveRecord::Base, which doesn't have this method. What's gone wrong?

The PostgreSQL and SQLite adapters require their respective Ruby 
bindings.  The MySQL adapter works out-of-the-box since pure-Ruby 
bindings are included.  RubyGems are not required, though the AR 1.0.0 
SQLite adapter had an errant dependency that has been fixed in CVS (and 
the beta gems.)

Best,
jeremy