Geocoder adds database-agnostic object geocoding to Rails (via Google). It does not rely on proprietary database functions so reasonably accurate distances can be calculated in MySQL or even SQLite.
Geocoder adds object geocoding and database-agnostic distance calculations to Ruby on Rails. It does not rely on proprietary database functions so finding geocoded objects in a given area is easily done using out-of-the-box MySQL or even SQLite.
