Deadloack: update_coupon_code_count update on sales invoice submit

[zeel-codder]

code

def update_coupon_code_count(coupon_name, transaction_type):
	coupon = frappe.get_doc("Coupon Code", coupon_name)
	if coupon:
		if transaction_type == "used":
			if not coupon.maximum_use:
				coupon.used = coupon.used + 1
				coupon.save(ignore_permissions=True)
			elif coupon.used < coupon.maximum_use:
				coupon.used = coupon.used + 1
				coupon.save(ignore_permissions=True)
			else:
				frappe.throw(
					_("{0} Coupon used are {1}. Allowed quantity is exhausted").format(
						coupon.coupon_code, coupon.used
					)
				)
		elif transaction_type == "cancelled":
			if coupon.used > 0:
				coupon.used = coupon.used - 1
				coupon.save(ignore_permissions=True)