module PgConn

def self.===(element) element.is_a?(PgConn::Connection) or super end

Make the PgConn module pretend it has PgConn instances 
def self.===(element) element.is_a?(PgConn::Connection) or super end

def self.ensure(*args)

PgConn::Connection object
PgConn::Connection#initialize arguments that will be used to create a new
can be an existing connection that will just be returned or a set of
Returns a PgConn::Connection object (aka. a PgConn object). It's arguments 
def self.ensure(*args)
  if args.size == 1 && args.first.is_a?(PgConn::Connection)
    args.first
  else
    PgConn::Connection.new(*args)
  end
end

def self.new(*args, &block) Connection.new(*args, &block) end

Return a PgConn::Connection object. TODO: A block argument 
def self.new(*args, &block) Connection.new(*args, &block) end

def self.sql_idents(values) '"' + values.join('", "') + '"' end 

def self.sql_idents(values) '"' + values.join('", "') + '"' end

def self.sql_values(values) "'" + values.join("', '") + "'" end 

def self.sql_values(values) "'" + values.join("', '") + "'" end