Setting up Sequel for Postgresql

For those people who are using postgresql with sequel, just in case if you are having an error message like the one below:

Sequel::Error::AdapterNotFound: Could not load postgres adapter:
no such file to load -- postgres
    from /usr/local/lib/ruby/gems/1.8/gems/sequel_core-1.0.5/lib/sequel_core/database.rb:383:in `adapter_class'
    from /usr/local/lib/ruby/gems/1.8/gems/sequel_core-1.0.5/lib/sequel_core.rb:36:in `method_missing'

This probably means that you don't have the postgres adapter installed. One quick way to fix problem is to install the postgres gem via rubygems:

% rubygems install -r postgres

That should solve the dependency requirement problem.