fix: slow posting datetime update

erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py

@@ -88,6 +88,7 @@ def validate(self):
 		self.flags.ignore_submit_comment = True
 		from erpnext.stock.utils import validate_disabled_warehouse, validate_warehouse_company
 
+		self.set_posting_datetime()
 		self.validate_mandatory()
 		self.validate_batch()
 		validate_disabled_warehouse(self.warehouse)
@@ -101,11 +102,7 @@ def validate(self):
 	def set_posting_datetime(self, save=False):
 		from erpnext.stock.utils import get_combine_datetime
 
-		if save:
-			posting_datetime = get_combine_datetime(self.posting_date, self.posting_time)
-			if not self.posting_datetime or self.posting_datetime != posting_datetime:
-				self.db_set("posting_datetime", posting_datetime)
-		else:
+		if self.posting_date and self.posting_time:
 			self.posting_datetime = get_combine_datetime(self.posting_date, self.posting_time)
 
 	def validate_inventory_dimension_negative_stock(self):
@@ -173,7 +170,6 @@ def _get_inventory_dimensions(self):
 		return inv_dimension_dict
 
 	def on_submit(self):
-		self.set_posting_datetime(save=True)
 		self.check_stock_frozen_date()
 
 		# Added to handle few test cases where serial_and_batch_bundles are not required

erpnext/stock/stock_ledger.py

@@ -223,7 +223,6 @@ def make_entry(args, allow_negative_stock=False, via_landed_cost_voucher=False):
 	sle.flags.ignore_permissions = 1
 	sle.allow_negative_stock = allow_negative_stock
 	sle.via_landed_cost_voucher = via_landed_cost_voucher
-	sle.set_posting_datetime()
 	sle.submit()
 
 	# Added to handle the case when the stock ledger entry is created from the repostig