Auth.rb

def create_user
		begin  
			if self.username.nil? || self.username == 0 || self.password.nil? || self.password == 0 || self.role.nil? || self.role == 0 
				raise "Missing paramiter"
			else
				user = User.new(:username => self.username, :password => self.password, :created_at => Time.now, :role => self.role)
				if user.save
					return true
				else
					raise "Record not saved"
				end
			end
		rescue Exception => e  
			return e.message  
		end  
	end