From f26b8b357c81bb7c3a174383a0e0d98facea4c0d Mon Sep 17 00:00:00 2001
From: phyusin <phyusinthant@code2lab.com>
Date: Wed, 17 Oct 2018 12:04:21 +0630
Subject: [PATCH] change seed generator

---
 app/models/seed_generator.rb | 147 ++++++++++++++++++-----------------
 1 file changed, 76 insertions(+), 71 deletions(-)

diff --git a/app/models/seed_generator.rb b/app/models/seed_generator.rb
index 690a2c53..d501f9db 100755
--- a/app/models/seed_generator.rb
+++ b/app/models/seed_generator.rb
@@ -1,100 +1,105 @@
 class SeedGenerator < ApplicationRecord
   # Generate ID for Tables
   def self.generate_id(model, prefix)
-    cur_val, next_val = self.update_seed(model)
+    query =  SeedGenerator.select("next").where("model=?",model).first()
 
-    if (cur_val == 0)
-      cur_val, next_val = self.execute_query(model)
-    end 
+    if query.nil?
+      nLast_val = 1
+      sql = "INSERT INTO seed_generators (model, created_at, updated_at)      
+            VALUES('#{ model }', NOW(), NOW()) 
+            ON DUPLICATE KEY UPDATE current = #{nLast_val}, next = #{nLast_val} + 1;"
+    else
+      nLast_val = query.next
+      sql = "UPDATE seed_generators set current = #{nLast_val}, next = #{nLast_val} + 1 WHERE model='#{model}';"
+    end
+    ActiveRecord::Base.connection.execute(sql);
 
     padding_len = 15 - prefix.length
-    saleOrderId = prefix +"-"+ cur_val.to_s.to_s.rjust((14-prefix.length)+1,'0')
-    return saleOrderId 
+    generate_id = prefix +"-"+ nLast_val.to_s.to_s.rjust((14-prefix.length)+1,'0')
+    
+    return generate_id 
   end
 
   # Generate Receipt No for number order (1,2,3) Don't touch
   def self.new_receipt_no
-    seed = SeedGenerator.find_by_model("sale")
+    query = SeedGenerator.select("current").where("model='Sale'").first()
     new_receipt_no = 0
-    if (seed.nil?)
-      seed = SeedGenerator.new()
-      seed.model = "sale"
-      new_receipt_no = seed.next
-      seed.save
+
+    if query.nil?
+      new_receipt_no = 1
     else
-      current_no = seed.next
-      seed.next = seed.next
-      seed.current = current_no
-      seed.save
+      new_receipt_no = query.current
     end
 
-    return seed.current 
+    return new_receipt_no 
   end
 
   # Generate for 4 digit Code
-  def self.generate_code(model, prefix)
-    seed = SeedGenerator.find_by_model(model)
-    new_code = 0
+  # def self.generate_code(model, prefix)
+  #   seed = SeedGenerator.find_by_model(model)
+  #   new_code = 0
 
-    if (seed.nil?)
-      seed = SeedGenerator.new()
-      seed.model = model
-      new_code = seed.next
-      seed.save
-    else
-      current_no = seed.next
-      seed.next = seed.next + seed.increase_by
-      seed.current = current_no
-      seed.save
-    end
+  #   if (seed.nil?)
+  #     seed = SeedGenerator.new()
+  #     seed.model = model
+  #     new_code = seed.next
+  #     seed.save
+  #   else
+  #     current_no = seed.next
+  #     seed.next = seed.next + seed.increase_by
+  #     seed.current = current_no
+  #     seed.save
+  #   end
 
     
-    if prefix.length == 1
-      padding_len = 5 - prefix.length
-      count = 4-prefix.length
-    else prefix.length == 2
-      padding_len = 6 - prefix.length
-      count = 5-prefix.length
-    end
-    next_code = prefix + seed.current.to_s.to_s.rjust((count)+1,'0')    
-    return next_code
-  end
+  #   if prefix.length == 1
+  #     padding_len = 5 - prefix.length
+  #     count = 4-prefix.length
+  #   else prefix.length == 2
+  #     padding_len = 6 - prefix.length
+  #     count = 5-prefix.length
+  #   end
+  #   next_code = prefix + seed.current.to_s.to_s.rjust((count)+1,'0')    
+  #   return next_code
+  # end
 
-  def self.execute_query(model)
-    current = 0
-    nex = 0
+  # 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 = next, next = next + 1;"
+
+  #   select_sql = "select * from seed_generators where model='#{model}';"
+
+  #   ActiveRecord::Base.connection.execute(sql);
+  #   select_result = ActiveRecord::Base.connection.execute(select_sql);       
     
-    sql = "INSERT INTO seed_generators (model, created_at, updated_at)      
-            VALUES('#{ model }', NOW(), NOW()) 
-            ON DUPLICATE KEY UPDATE current = current + 1, next = next + 1;"
-
-    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
+  #   select_result.each do |row|      
+  #     current = row [3]
+  #     nex = row[4]
+  #   end
 
-    return current, nex
-  end
+  #   return current, nex
+  # end
 
-  def self.update_seed(model)   
-    current = 0
-    nex = 0
+  # def self.update_seed(model)   
+  #   current = 0
+  #   nex = 0
 
-    update_sql = "UPDATE seed_generators set current = next, 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);
+  #   update_sql = "UPDATE seed_generators set current = next, next = next + 1 WHERE model='#{model}';"
+  #   select_sql = "select * from seed_generators where model='#{model}';"
     
-    select_result.each do |row|      
-      current = row [3]
-      nex = row[4]
-    end
+  #   update_result = ActiveRecord::Base.connection.execute(update_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
+  #   return current, nex
+  # end
 end