lib/latinum/collection.rb in latinum-1.4.1 vs lib/latinum/collection.rb in latinum-1.4.2

@@ -92,10 +92,18 @@
 			@resources.each do |key, value|
 				yield Resource.new(value, key)
 			end
 		end
 		
+		def empty?
+			@resources.empty?
+		end
+		
+		def include?(key)
+			@resources.include?(key)
+		end
+		
 		# Generate a new collection but ignore zero values.
 		def compact
 			collection = self.class.new
 			
 			@resources.each do |key, value|
@@ -103,8 +111,12 @@
 					collection.resources[key] = value
 				end
 			end
 			
 			return collection
+		end
+		
+		def to_s
+			@resources.map{|name, amount| "#{amount.to_s('F')} #{name}"}.join("; ")
 		end
 	end
 end