From e1572dda44b29c77077184b561904448b37c154d Mon Sep 17 00:00:00 2001
From: Sebastian <sebastian@yo.lk>
Date: Thu, 1 Aug 2013 03:26:55 +0200
Subject: [PATCH] Added Checksum::AlgorythmHelper#sum_of_figues_for_pt_si

---
 lib/valvat/checksum.rb    | 6 ++++++
 lib/valvat/checksum/pt.rb | 6 +++---
 lib/valvat/checksum/si.rb | 6 +++---
 3 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/lib/valvat/checksum.rb b/lib/valvat/checksum.rb
index e7ce014..6766beb 100644
--- a/lib/valvat/checksum.rb
+++ b/lib/valvat/checksum.rb
@@ -64,6 +64,12 @@ def sum_of_figures(reverse_ints=false)
         (fig*(i.modulo(2) == 0 ? ints[0] : ints[1])).to_s.split("").inject(0) { |sum, n| sum + n.to_i }
       end.inject(:+)
     end
+
+    def sum_of_figues_for_pt_si
+      11 - figures.reverse.each_with_index.map do |fig, i|
+        fig*(i+2)
+      end.inject(:+).modulo(11)
+    end
   end
 end
 
diff --git a/lib/valvat/checksum/pt.rb b/lib/valvat/checksum/pt.rb
index 35dbb9e..c19ced5 100644
--- a/lib/valvat/checksum/pt.rb
+++ b/lib/valvat/checksum/pt.rb
@@ -3,10 +3,10 @@
 class Valvat
   module Checksum
     class PT < Base
+      include AlgorythmHelper
+
       def check_digit
-        chk = 11 - figures.reverse.each_with_index.map do |fig, i|
-          fig*(i+2)
-        end.inject(:+).modulo(11)
+        chk = sum_of_figues_for_pt_si
         chk > 9 ? 0 : chk
       end
     end
diff --git a/lib/valvat/checksum/si.rb b/lib/valvat/checksum/si.rb
index 4a3f061..755e18d 100644
--- a/lib/valvat/checksum/si.rb
+++ b/lib/valvat/checksum/si.rb
@@ -3,15 +3,15 @@
 class Valvat
   module Checksum
     class SI < Base
+      include AlgorythmHelper
+
       def validate
         figures_str.to_i > 999999 &&
         super
       end
 
       def check_digit
-        chk = 11 - figures.reverse.each_with_index.map do |fig, i|
-          fig*(i+2)
-        end.inject(:+).modulo(11)
+        chk = sum_of_figues_for_pt_si
         chk == 1 ? 0 : chk
       end
     end