feat: add mmqr in shift sale report

app/models/shift_sale.rb

@@ -152,6 +152,15 @@ class ShiftSale < ApplicationRecord
      return closing_balance
   end
 
+  def self.get_by_shift_mmqr_payment(shift)
+    Sale.joins(:sale_payments)
+          .where(shift_sale_id: shift, sale_status: 'completed')
+          .where(sale_payments: { payment_method: 'mmqr' })
+          .where.not(sale_payments: { payment_status: 'cancelled' })
+          .where.not(sale_payments: { payment_amount: 0 })
+          .sum("sale_payments.payment_amount")
+  end
+
   def self.get_by_shift_other_payment(shift)
     payment_methods = SalePayment.where.not(payment_method: ['cash', 'creditnote', 'foc']).distinct.pluck(:payment_method)