inventory

app/models/stock_check_item.rb

@@ -1,2 +1,36 @@
 class StockCheckItem < ApplicationRecord
+  
+  belongs_to :stock_check
+
+  def create(stock_id, item)
+    journal_id, balance = StockCheckItem.find_journal(item['sku'])
+    remark, different = StockCheckItem.stock_different(item['qty'], balance )
+    self.stock_check_id = stock_id
+    self.item_code = item['sku']
+    self.stock_count = item['qty']
+    self.stock_journal_id = journal_id
+    self.stock_balance = balance
+    self.different = different
+    self.remark = remark
+    self.save
+  end
+
+  def self.find_journal(item_code)
+     journal = StockJournal.where('item_code=?', item_code).order('created_at desc').take
+     if journal
+       return journal.id, journal.balance
+     else
+       return nil, 0
+     end
+  end
+
+  def self.stock_different(stock_check_qty, journal_balance)
+      if stock_check_qty.to_i == journal_balance.to_i
+        return 'match', stock_check_qty
+      elsif stock_check_qty.to_i > journal_balance.to_i
+        return 'missing order item', stock_check_qty.to_i - journal_balance.to_i
+      elsif stock_check_qty.to_i < journal_balance.to_i
+        return 'missing stock', stock_check_qty.to_i - journal_balance.to_i
+      end
+  end
 end