diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
index 882a374..9ebcadd 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
@@ -1410,7 +1410,7 @@
 			self.repost_future_sle_and_gle()
 
 		self.update_project()
-		frappe.db.set(self, "status", "Cancelled")
+		self.db_set("status", "Cancelled")
 
 		unlink_inter_company_doc(self.doctype, self.name, self.inter_company_invoice_reference)
 		self.ignore_linked_doctypes = (
diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
index e796c99..911440f 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
@@ -373,7 +373,7 @@
 		if self.update_stock == 1:
 			self.repost_future_sle_and_gle()
 
-		frappe.db.set(self, "status", "Cancelled")
+		self.db_set("status", "Cancelled")
 		self.db_set("repost_required", 0)
 
 		if (
@@ -2399,7 +2399,7 @@
 	lp_details = get_loyalty_programs(customer)
 
 	if len(lp_details) == 1:
-		frappe.db.set(customer, "loyalty_program", lp_details[0])
+		customer.db_set("loyalty_program", lp_details[0])
 		return lp_details
 	else:
 		return lp_details
diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.py b/erpnext/buying/doctype/purchase_order/purchase_order.py
index c224b61..4c10b48 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.py
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.py
@@ -361,7 +361,7 @@
 		self.update_reserved_qty_for_subcontract()
 		self.check_on_hold_or_closed_status()
 
-		frappe.db.set(self, "status", "Cancelled")
+		self.db_set("status", "Cancelled")
 
 		self.update_prevdoc_status()
 
diff --git a/erpnext/buying/doctype/request_for_quotation/request_for_quotation.py b/erpnext/buying/doctype/request_for_quotation/request_for_quotation.py
index ee28eb6..a560bda 100644
--- a/erpnext/buying/doctype/request_for_quotation/request_for_quotation.py
+++ b/erpnext/buying/doctype/request_for_quotation/request_for_quotation.py
@@ -31,7 +31,7 @@
 
 		if self.docstatus < 1:
 			# after amend and save, status still shows as cancelled, until submit
-			frappe.db.set(self, "status", "Draft")
+			self.db_set("status", "Draft")
 
 	def validate_duplicate_supplier(self):
 		supplier_list = [d.supplier for d in self.suppliers]
@@ -73,14 +73,14 @@
 			)
 
 	def on_submit(self):
-		frappe.db.set(self, "status", "Submitted")
+		self.db_set("status", "Submitted")
 		for supplier in self.suppliers:
 			supplier.email_sent = 0
 			supplier.quote_status = "Pending"
 		self.send_to_supplier()
 
 	def on_cancel(self):
-		frappe.db.set(self, "status", "Cancelled")
+		self.db_set("status", "Cancelled")
 
 	@frappe.whitelist()
 	def get_supplier_email_preview(self, supplier):
diff --git a/erpnext/buying/doctype/supplier/supplier.py b/erpnext/buying/doctype/supplier/supplier.py
index 43152e8..bebff1c 100644
--- a/erpnext/buying/doctype/supplier/supplier.py
+++ b/erpnext/buying/doctype/supplier/supplier.py
@@ -145,7 +145,7 @@
 
 	def after_rename(self, olddn, newdn, merge=False):
 		if frappe.defaults.get_global_default("supp_master_name") == "Supplier Name":
-			frappe.db.set(self, "supplier_name", newdn)
+			self.db_set("supplier_name", newdn)
 
 
 @frappe.whitelist()
diff --git a/erpnext/buying/doctype/supplier_quotation/supplier_quotation.py b/erpnext/buying/doctype/supplier_quotation/supplier_quotation.py
index c19c1df..2dd748b 100644
--- a/erpnext/buying/doctype/supplier_quotation/supplier_quotation.py
+++ b/erpnext/buying/doctype/supplier_quotation/supplier_quotation.py
@@ -30,11 +30,11 @@
 		self.validate_valid_till()
 
 	def on_submit(self):
-		frappe.db.set(self, "status", "Submitted")
+		self.db_set("status", "Submitted")
 		self.update_rfq_supplier_status(1)
 
 	def on_cancel(self):
-		frappe.db.set(self, "status", "Cancelled")
+		self.db_set("status", "Cancelled")
 		self.update_rfq_supplier_status(0)
 
 	def on_trash(self):
diff --git a/erpnext/crm/doctype/opportunity/opportunity.py b/erpnext/crm/doctype/opportunity/opportunity.py
index 08eb472..f4b6e91 100644
--- a/erpnext/crm/doctype/opportunity/opportunity.py
+++ b/erpnext/crm/doctype/opportunity/opportunity.py
@@ -60,7 +60,7 @@
 			if not self.get(field) and frappe.db.field_exists(self.opportunity_from, field):
 				try:
 					value = frappe.db.get_value(self.opportunity_from, self.party_name, field)
-					frappe.db.set(self, field, value)
+					self.db_set(field, value)
 				except Exception:
 					continue
 
diff --git a/erpnext/maintenance/doctype/maintenance_schedule/maintenance_schedule.py b/erpnext/maintenance/doctype/maintenance_schedule/maintenance_schedule.py
index 3dc6b0f..95e2d69 100644
--- a/erpnext/maintenance/doctype/maintenance_schedule/maintenance_schedule.py
+++ b/erpnext/maintenance/doctype/maintenance_schedule/maintenance_schedule.py
@@ -119,7 +119,7 @@
 				event.add_participant(self.doctype, self.name)
 				event.insert(ignore_permissions=1)
 
-		frappe.db.set(self, "status", "Submitted")
+		self.db_set("status", "Submitted")
 
 	def create_schedule_list(self, start_date, end_date, no_of_visit, sales_person):
 		schedule_list = []
@@ -245,7 +245,7 @@
 			self.generate_schedule()
 
 	def on_update(self):
-		frappe.db.set(self, "status", "Draft")
+		self.db_set("status", "Draft")
 
 	def update_amc_date(self, serial_nos, amc_expiry_date=None):
 		for serial_no in serial_nos:
@@ -344,7 +344,7 @@
 			if d.serial_no:
 				serial_nos = get_valid_serial_nos(d.serial_no)
 				self.update_amc_date(serial_nos)
-		frappe.db.set(self, "status", "Cancelled")
+		self.db_set("status", "Cancelled")
 		delete_events(self.doctype, self.name)
 
 	def on_trash(self):
diff --git a/erpnext/maintenance/doctype/maintenance_visit/maintenance_visit.py b/erpnext/maintenance/doctype/maintenance_visit/maintenance_visit.py
index 66f4426..0d319bf 100644
--- a/erpnext/maintenance/doctype/maintenance_visit/maintenance_visit.py
+++ b/erpnext/maintenance/doctype/maintenance_visit/maintenance_visit.py
@@ -125,12 +125,12 @@
 
 	def on_submit(self):
 		self.update_customer_issue(1)
-		frappe.db.set(self, "status", "Submitted")
+		self.db_set("status", "Submitted")
 		self.update_status_and_actual_date()
 
 	def on_cancel(self):
 		self.check_if_last_visit()
-		frappe.db.set(self, "status", "Cancelled")
+		self.db_set("status", "Cancelled")
 		self.update_status_and_actual_date(cancel=True)
 
 	def on_update(self):
diff --git a/erpnext/manufacturing/doctype/bom/bom.py b/erpnext/manufacturing/doctype/bom/bom.py
index 580838e..ca4f63d 100644
--- a/erpnext/manufacturing/doctype/bom/bom.py
+++ b/erpnext/manufacturing/doctype/bom/bom.py
@@ -206,8 +206,8 @@
 		self.manage_default_bom()
 
 	def on_cancel(self):
-		frappe.db.set(self, "is_active", 0)
-		frappe.db.set(self, "is_default", 0)
+		self.db_set("is_active", 0)
+		self.db_set("is_default", 0)
 
 		# check if used in any other bom
 		self.validate_bom_links()
@@ -449,10 +449,10 @@
 			not frappe.db.exists(dict(doctype="BOM", docstatus=1, item=self.item, is_default=1))
 			and self.is_active
 		):
-			frappe.db.set(self, "is_default", 1)
+			self.db_set("is_default", 1)
 			frappe.db.set_value("Item", self.item, "default_bom", self.name)
 		else:
-			frappe.db.set(self, "is_default", 0)
+			self.db_set("is_default", 0)
 			item = frappe.get_doc("Item", self.item)
 			if item.default_bom == self.name:
 				frappe.db.set_value("Item", self.item, "default_bom", None)
diff --git a/erpnext/manufacturing/doctype/work_order/work_order.py b/erpnext/manufacturing/doctype/work_order/work_order.py
index 1e6d982..0735133 100644
--- a/erpnext/manufacturing/doctype/work_order/work_order.py
+++ b/erpnext/manufacturing/doctype/work_order/work_order.py
@@ -373,7 +373,7 @@
 
 	def on_cancel(self):
 		self.validate_cancel()
-		frappe.db.set(self, "status", "Cancelled")
+		self.db_set("status", "Cancelled")
 
 		if self.production_plan and frappe.db.exists(
 			"Production Plan Item Reference", {"parent": self.production_plan}
diff --git a/erpnext/selling/doctype/customer/customer.py b/erpnext/selling/doctype/customer/customer.py
index 6605685..d0eb377 100644
--- a/erpnext/selling/doctype/customer/customer.py
+++ b/erpnext/selling/doctype/customer/customer.py
@@ -294,7 +294,7 @@
 
 	def after_rename(self, olddn, newdn, merge=False):
 		if frappe.defaults.get_global_default("cust_master_name") == "Customer Name":
-			frappe.db.set(self, "customer_name", newdn)
+			self.db_set("customer_name", newdn)
 
 	def set_loyalty_program(self):
 		if self.loyalty_program:
diff --git a/erpnext/selling/doctype/installation_note/installation_note.py b/erpnext/selling/doctype/installation_note/installation_note.py
index dd0b1e8..0ef4754 100644
--- a/erpnext/selling/doctype/installation_note/installation_note.py
+++ b/erpnext/selling/doctype/installation_note/installation_note.py
@@ -87,13 +87,13 @@
 			frappe.throw(_("Please pull items from Delivery Note"))
 
 	def on_update(self):
-		frappe.db.set(self, "status", "Draft")
+		self.db_set("status", "Draft")
 
 	def on_submit(self):
 		self.validate_serial_no()
 		self.update_prevdoc_status()
-		frappe.db.set(self, "status", "Submitted")
+		self.db_set("status", "Submitted")
 
 	def on_cancel(self):
 		self.update_prevdoc_status()
-		frappe.db.set(self, "status", "Cancelled")
+		self.db_set("status", "Cancelled")
diff --git a/erpnext/selling/doctype/quotation/quotation.py b/erpnext/selling/doctype/quotation/quotation.py
index 96092b1..60d98fb 100644
--- a/erpnext/selling/doctype/quotation/quotation.py
+++ b/erpnext/selling/doctype/quotation/quotation.py
@@ -119,10 +119,10 @@
 		if not (self.is_fully_ordered() or self.is_partially_ordered()):
 			get_lost_reasons = frappe.get_list("Quotation Lost Reason", fields=["name"])
 			lost_reasons_lst = [reason.get("name") for reason in get_lost_reasons]
-			frappe.db.set(self, "status", "Lost")
+			self.db_set("status", "Lost")
 
 			if detailed_reason:
-				frappe.db.set(self, "order_lost_reason", detailed_reason)
+				self.db_set("order_lost_reason", detailed_reason)
 
 			for reason in lost_reasons_list:
 				if reason.get("lost_reason") in lost_reasons_lst:
diff --git a/erpnext/selling/doctype/sales_order/sales_order.py b/erpnext/selling/doctype/sales_order/sales_order.py
index 1f3419f..5fadfcb 100755
--- a/erpnext/selling/doctype/sales_order/sales_order.py
+++ b/erpnext/selling/doctype/sales_order/sales_order.py
@@ -246,7 +246,7 @@
 		self.update_project()
 		self.update_prevdoc_status("cancel")
 
-		frappe.db.set(self, "status", "Cancelled")
+		self.db_set("status", "Cancelled")
 
 		self.update_blanket_order()
 
diff --git a/erpnext/setup/doctype/company/company.py b/erpnext/setup/doctype/company/company.py
index 490504a..875f63d 100644
--- a/erpnext/setup/doctype/company/company.py
+++ b/erpnext/setup/doctype/company/company.py
@@ -207,15 +207,14 @@
 		frappe.local.flags.ignore_root_company_validation = True
 		create_charts(self.name, self.chart_of_accounts, self.existing_company)
 
-		frappe.db.set(
-			self,
+		self.db_set(
 			"default_receivable_account",
 			frappe.db.get_value(
 				"Account", {"company": self.name, "account_type": "Receivable", "is_group": 0}
 			),
 		)
-		frappe.db.set(
-			self,
+
+		self.db_set(
 			"default_payable_account",
 			frappe.db.get_value(
 				"Account", {"company": self.name, "account_type": "Payable", "is_group": 0}
@@ -491,12 +490,12 @@
 				cc_doc.flags.ignore_mandatory = True
 			cc_doc.insert()
 
-		frappe.db.set(self, "cost_center", _("Main") + " - " + self.abbr)
-		frappe.db.set(self, "round_off_cost_center", _("Main") + " - " + self.abbr)
-		frappe.db.set(self, "depreciation_cost_center", _("Main") + " - " + self.abbr)
+		self.db_set("cost_center", _("Main") + " - " + self.abbr)
+		self.db_set("round_off_cost_center", _("Main") + " - " + self.abbr)
+		self.db_set("depreciation_cost_center", _("Main") + " - " + self.abbr)
 
 	def after_rename(self, olddn, newdn, merge=False):
-		frappe.db.set(self, "company_name", newdn)
+		self.db_set("company_name", newdn)
 
 		frappe.db.sql(
 			"""update `tabDefaultValue` set defvalue=%s
diff --git a/erpnext/stock/doctype/material_request/material_request.py b/erpnext/stock/doctype/material_request/material_request.py
index 2614a7f..817248e 100644
--- a/erpnext/stock/doctype/material_request/material_request.py
+++ b/erpnext/stock/doctype/material_request/material_request.py
@@ -120,7 +120,6 @@
 			self.title = _("{0} Request for {1}").format(self.material_request_type, items)[:100]
 
 	def on_submit(self):
-		# frappe.db.set(self, 'status', 'Submitted')
 		self.update_requested_qty()
 		self.update_requested_qty_in_production_plan()
 		if self.material_request_type == "Purchase":
diff --git a/erpnext/stock/doctype/material_request/test_material_request.py b/erpnext/stock/doctype/material_request/test_material_request.py
index f02462c..f0a9499 100644
--- a/erpnext/stock/doctype/material_request/test_material_request.py
+++ b/erpnext/stock/doctype/material_request/test_material_request.py
@@ -216,7 +216,7 @@
 		po.load_from_db()
 		mr.update_status("Stopped")
 		self.assertRaises(frappe.InvalidStatusError, po.submit)
-		frappe.db.set(po, "docstatus", 1)
+		po.db_set("docstatus", 1)
 		self.assertRaises(frappe.InvalidStatusError, po.cancel)
 
 		# resubmit and check for per complete
diff --git a/erpnext/support/doctype/warranty_claim/warranty_claim.py b/erpnext/support/doctype/warranty_claim/warranty_claim.py
index 5e2ea06..c86356f 100644
--- a/erpnext/support/doctype/warranty_claim/warranty_claim.py
+++ b/erpnext/support/doctype/warranty_claim/warranty_claim.py
@@ -35,7 +35,7 @@
 			lst1 = ",".join(x[0] for x in lst)
 			frappe.throw(_("Cancel Material Visit {0} before cancelling this Warranty Claim").format(lst1))
 		else:
-			frappe.db.set(self, "status", "Cancelled")
+			self.db_set("status", "Cancelled")
 
 	def on_update(self):
 		pass