final db structure

db/migrate/20170403160742_create_sales.rb

@@ -0,0 +1,25 @@
+class CreateSales < ActiveRecord::Migration[5.0]
+  def change
+    create_table :sales do |t|
+      t.integer :cashier_id, :null => false, :index => true
+      t.string  :cashier_name, :null => false
+      t.string  :requested_by, :null => false
+      t.datetime  :requested_at, :null => false
+      t.string  :receipt_no, :null => false
+      t.datetime :receipt_date, :null => false
+      t.references :customer, foreign_key: true
+      t.string  :payment_status, :null => false, :default => "outstanding"
+      t.string  :sale_status, :null => false, :default => "new"
+      t.decimal :total_amount, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.decimal :total_discount, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.decimal :total_tax, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.string  :tax_type, :null => false , :dfault => "exclusive_tax"
+      t.decimal :grant_total, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.decimal :rounding_adjustment, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.decimal :amount_received, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.decimal :amount_changed, :precision => 10, :scale => 2, :null => false, :default => 0.00
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20170403161857_create_sale_items.rb

@@ -0,0 +1,17 @@
+class CreateSaleItems < ActiveRecord::Migration[5.0]
+  def change
+    create_table :sale_items do |t|
+      t.references :sale, foreign_key: true
+      t.string :product_code, :null => false
+      t.string :product_name, :null => false
+      t.string :remark
+      t.decimal :qty, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.decimal :unit_price, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.decimal :taxable_price, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.decimal :price, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.boolean :is_taxable, :null => false, :default => true
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20170403162221_create_sale_discounts.rb

@@ -0,0 +1,13 @@
+class CreateSaleDiscounts < ActiveRecord::Migration[5.0]
+  def change
+    create_table :sale_discounts do |t|
+      t.references :sale, foreign_key: true
+      t.string :discount_type, :null => false
+      t.decimal :discount_value, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.decimal :discount_amount, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.string :discount_code
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20170403162844_create_sale_discount_items.rb

@@ -0,0 +1,19 @@
+class CreateSaleDiscountItems < ActiveRecord::Migration[5.0]
+  def change
+    create_table :sale_discount_items do |t|
+      t.references :sale, foreign_key: true
+      t.string :product_code, :null => false
+      t.string :product_name, :null => false
+      t.decimal :unit_price, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.decimal :discounted_price, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.decimal :qty, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.string :remark
+      t.decimal :price, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.string :discount_type, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.decimal :discounted_value, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.boolean :is_taxable, :null => false, :default => true
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20170403163219_create_sale_taxes.rb

@@ -0,0 +1,12 @@
+class CreateSaleTaxes < ActiveRecord::Migration[5.0]
+  def change
+    create_table :sale_taxes do |t|
+      t.references :sale, foreign_key: true
+      t.string :tax_name, :null => false
+      t.decimal :tax_rate, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.decimal :tax_payable_amount, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.boolean :inclusive, :default => false, :null => false
+      t.timestamps
+    end
+  end
+end

db/migrate/20170403163734_create_sale_payments.rb

@@ -0,0 +1,14 @@
+class CreateSalePayments < ActiveRecord::Migration[5.0]
+  def change
+    create_table :sale_payments do |t|
+      t.references :sale, foreign_key: true
+      t.string :payment_method, :null => false, :default => "cash"
+      t.decimal :payment_amount, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.decimal :outstanding_amount, :precision => 10, :scale => 2, :null => false, :default => 0.00
+      t.string :payment_reference
+      t.string :payment_status, :null => false, :default => "new"
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20170403174029_create_sale_orders.rb

@@ -0,0 +1,10 @@
+class CreateSaleOrders < ActiveRecord::Migration[5.0]
+  def change
+    create_table :sale_orders do |t|
+      t.references :sale, foreign_key: true
+      t.references :order, foreign_key: true
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20170403174111_create_sale_audits.rb

@@ -0,0 +1,14 @@
+class CreateSaleAudits < ActiveRecord::Migration[5.0]
+  def change
+    create_table :sale_audits do |t|
+      t.references :sale, foreign_key: true
+      t.string :action, :null => false
+      t.datetime :action_at, :null => false
+      t.string :action_by, :null => false
+      t.string :approved_by, :null => false
+      t.datetime :approved_by, :null => false
+      t.string :remark
+      t.timestamps
+    end
+  end
+end

db/migrate/20170403174309_create_lookups.rb

@@ -0,0 +1,9 @@
+class CreateLookups < ActiveRecord::Migration[5.0]
+  def change
+    create_table :lookups do |t|
+      t.string :lookup_type, :null => false
+      t.string :name, :null => false
+      t.string :value, :null => false
+    end
+  end
+end