class String

def classify

'business'.classify # => "Busines"

Singular names are not handled correctly.

'posts'.classify # => "Post"
'egg_and_hams'.classify # => "EggAndHam"

follow +classify+ with +constantize+.)
Note that this returns a string and not a class. (To convert to an actual class
Create a class name from a plural table name like Rails does for table names to models. 
def classify
  ActiveSupport::Inflector.classify(self)
end