optimizing record creation by using method_missing instead of generat…

…ing attribute accessors for each record

CHANGELOG

@@ -1,3 +1,5 @@
+* performance improvements
+
 * improving inline documentation
 
 *0.2.1* (August 30th, 2008)

lib/populator/record.rb

@@ -3,8 +3,7 @@ module Populator
   class Record
     attr_accessor :attributes
 
-    # Creates a new instance of Record and generates some accessor
-    # methods for setting attributes. Some attributes are set by default:
+    # Creates a new instance of Record. Some attributes are set by default:
     #
     # * <tt>id</tt> - defaults to id passed
     # * <tt>created_at</tt> - defaults to current time
@@ -21,23 +20,34 @@ def initialize(model_class, id)
         if column == 'created_on' || column == 'updated_on'
           @attributes[column.to_sym] = Date.today
         end
-        self.instance_eval <<-EOS
-          def #{column}=(value)
-            @attributes[:#{column}] = Populator.interpret_value(value)
-          end
-          
-          def #{column}
-            @attributes[:#{column}]
-          end
-        EOS
       end
     end
 
+    # override id since method_missing won't catch this column name
+    def id
+      @attributes[:id]
+    end
+
     # Return values for all columns inside an array.
     def attribute_values
       @columns.map do |column|
         @attributes[column.to_sym]
       end
     end
+
+    private
+
+    def method_missing(sym, *args, &block)
+      name = sym.to_s
+      if @columns.include?(name.sub('=', ''))
+        if name.include? '='
+          @attributes[name.sub('=', '').to_sym] = Populator.interpret_value(args.first)
+        else
+          @attributes[sym]
+        end
+      else
+        super
+      end
+    end
   end
 end

script/profiler

@@ -30,7 +30,7 @@ begin
       printer_class = RubyProf::FlatPrinter
     end
     printer = printer_class.new(results)
-    printer.print($stderr, 0)
+    printer.print($stdout)
   rescue LoadError
     require "prof"
     $stderr.puts 'Using the old ruby-prof extension.'
@@ -39,13 +39,13 @@ begin
     profile_me
     results = Prof.stop
     require 'rubyprof_ext'
-    Prof.print_profile(results, $stderr)
+    Prof.print_profile(results, $stdout)
   end
 rescue LoadError
   require 'profiler'
   $stderr.puts 'Using the standard Ruby profiler.'
   Profiler__.start_profile
   profile_me
   Profiler__.stop_profile
-  Profiler__.print_profile($stderr)
+  Profiler__.print_profile($stdout)
 end