From fa554067a3724659d881c6174f416bc981374869 Mon Sep 17 00:00:00 2001
From: Yan <yanaung.nyein@code2lab.com>
Date: Tue, 24 Oct 2017 17:57:03 +0630
Subject: [PATCH] fix seed

---
 app/models/seed_generator.rb | 74 ++++++++++++++++--------------------
 1 file changed, 33 insertions(+), 41 deletions(-)

diff --git a/app/models/seed_generator.rb b/app/models/seed_generator.rb
index b05398aa..1451b11e 100755
--- a/app/models/seed_generator.rb
+++ b/app/models/seed_generator.rb
@@ -1,42 +1,15 @@
 class SeedGenerator < ApplicationRecord
   # Generate ID for Tables
   def self.generate_id(model, prefix)
-    seed = SeedGenerator.find_by_model(model)    
-    new_receipt_no = 0
+    cur_val, next_val = self.update_seed(model)
 
-    if (seed.nil?)
-      seed = SeedGenerator.new()
-      seed.model = model
-      new_receipt_no = seed.next
-      seed.save
-    else
-      next_no = seed.next
-      current_no = seed.next
-      seed.next = seed.next + seed.increase_by
-      seed.current = current_no
-      seed.save
-      # cur_val, next_val = self.update_seed(model, seed.next, seed.increase_by)   
-
-      # if next_no == cur_val   
-      #   puts "SSS"
-      #   puts next_val             
-      #   cur_val2, next_val2 = self.update_seed(model, next_val, seed.increase_by)
-      #   puts next_val2
-      #   padding_len = 15 - prefix.length
-      #   saleOrderId = prefix +"-"+ cur_val2.to_s.to_s.rjust((14-prefix.length)+1,'0')
-      #   puts saleOrderId
-      #   return saleOrderId 
-      # end 
-        
-      # padding_len = 15 - prefix.length
-      # saleOrderId = prefix +"-"+ cur_val.to_s.to_s.rjust((14-prefix.length)+1,'0')
-      # return saleOrderId 
-
-    end
+    if (cur_val == 0)
+      cur_val, next_val = self.execute_query(model)
+    end 
 
     padding_len = 15 - prefix.length
-    saleOrderId = prefix +"-"+ seed.current.to_s.to_s.rjust((14-prefix.length)+1,'0')
-    return saleOrderId
+    saleOrderId = prefix +"-"+ cur_val.to_s.to_s.rjust((14-prefix.length)+1,'0')
+    return saleOrderId 
   end
 
   # Generate Receipt No
@@ -88,22 +61,41 @@ class SeedGenerator < ApplicationRecord
     return next_code
   end
 
-  def self.update_seed(model, current, inc)    
-    cur_val = 0
-    next_val = 0
-    nex = current + inc
+  def self.execute_query(model)
+    current = 0
+    nex = 0
+    
+    sql = "INSERT INTO seed_generators (model, created_at, updated_at)      
+            VALUES('#{ model }', NOW(), NOW()) 
+            ON DUPLICATE KEY UPDATE current = current + 1, next = next + 1;"
 
-    update_sql = "update seed_generators set current= #{current}, next= #{nex} where model='#{model}';";
+    select_sql = "select * from seed_generators where model='#{model}';"           
+    ActiveRecord::Base.connection.execute(sql);
+    select_result = ActiveRecord::Base.connection.execute(select_sql);
+    
+    select_result.each do |row|      
+      current = row [3]
+      nex = row[4]
+    end
+
+    return current, nex
+  end
+
+  def self.update_seed(model)   
+    current = 0
+    nex = 0
+
+    update_sql = "UPDATE seed_generators set current = current + 1, next = next + 1 WHERE model='#{model}';"
     select_sql = "select * from seed_generators where model='#{model}';"
     update_result = ActiveRecord::Base.connection.execute(update_sql);
 
     select_result = ActiveRecord::Base.connection.execute(select_sql);
     
     select_result.each do |row|      
-      cur_val = row [3]
-      next_val = row[4]
+      current = row [3]
+      nex = row[4]
     end
 
-    return cur_val, next_val
+    return current, nex
   end
 end