Merge branch 'develop' into revert-drop-einvoicing
diff --git a/.flake8 b/.flake8
index 56c9b9a..5735456 100644
--- a/.flake8
+++ b/.flake8
@@ -28,6 +28,7 @@
     B007,
     B950,
     W191,
+    E124, # closing bracket, irritating while writing QB code
 
 max-line-length = 200
 exclude=.github/helper/semgrep_rules
diff --git a/erpnext/accounts/doctype/bank_transaction/bank_transaction.py b/erpnext/accounts/doctype/bank_transaction/bank_transaction.py
index 44cea31..51e1d6e 100644
--- a/erpnext/accounts/doctype/bank_transaction/bank_transaction.py
+++ b/erpnext/accounts/doctype/bank_transaction/bank_transaction.py
@@ -2,9 +2,10 @@
 # For license information, please see license.txt
 
 
+from functools import reduce
+
 import frappe
 from frappe.utils import flt
-from six.moves import reduce
 
 from erpnext.controllers.status_updater import StatusUpdater
 
diff --git a/erpnext/accounts/report/accounts_receivable_summary/accounts_receivable_summary.py b/erpnext/accounts/report/accounts_receivable_summary/accounts_receivable_summary.py
index 4559fa9..8e3bd8b 100644
--- a/erpnext/accounts/report/accounts_receivable_summary/accounts_receivable_summary.py
+++ b/erpnext/accounts/report/accounts_receivable_summary/accounts_receivable_summary.py
@@ -5,7 +5,6 @@
 import frappe
 from frappe import _, scrub
 from frappe.utils import cint, flt
-from six import iteritems
 
 from erpnext.accounts.party import get_partywise_advanced_payment_amount
 from erpnext.accounts.report.accounts_receivable.accounts_receivable import ReceivablePayableReport
@@ -40,7 +39,7 @@
 		if self.filters.show_gl_balance:
 			gl_balance_map = get_gl_balance(self.filters.report_date)
 
-		for party, party_dict in iteritems(self.party_total):
+		for party, party_dict in self.party_total.items():
 			if party_dict.outstanding == 0:
 				continue
 
diff --git a/erpnext/crm/doctype/linkedin_settings/linkedin_settings.py b/erpnext/crm/doctype/linkedin_settings/linkedin_settings.py
index 8fd4978..d2ac10a 100644
--- a/erpnext/crm/doctype/linkedin_settings/linkedin_settings.py
+++ b/erpnext/crm/doctype/linkedin_settings/linkedin_settings.py
@@ -2,13 +2,14 @@
 # For license information, please see license.txt
 
 
+from urllib.parse import urlencode
+
 import frappe
 import requests
 from frappe import _
 from frappe.model.document import Document
 from frappe.utils import get_url_to_form
 from frappe.utils.file_manager import get_file_path
-from six.moves.urllib.parse import urlencode
 
 
 class LinkedInSettings(Document):
diff --git a/erpnext/erpnext_integrations/doctype/amazon_mws_settings/amazon_methods.py b/erpnext/erpnext_integrations/doctype/amazon_mws_settings/amazon_methods.py
index 66826ba..03c1a1a 100644
--- a/erpnext/erpnext_integrations/doctype/amazon_mws_settings/amazon_methods.py
+++ b/erpnext/erpnext_integrations/doctype/amazon_mws_settings/amazon_methods.py
@@ -5,11 +5,11 @@
 import csv
 import math
 import time
+from io import StringIO
 
 import dateutil
 import frappe
 from frappe import _
-from six import StringIO
 
 import erpnext.erpnext_integrations.doctype.amazon_mws_settings.amazon_mws_api as mws
 
diff --git a/erpnext/erpnext_integrations/doctype/gocardless_settings/gocardless_settings.py b/erpnext/erpnext_integrations/doctype/gocardless_settings/gocardless_settings.py
index e242ace..a8119ac 100644
--- a/erpnext/erpnext_integrations/doctype/gocardless_settings/gocardless_settings.py
+++ b/erpnext/erpnext_integrations/doctype/gocardless_settings/gocardless_settings.py
@@ -2,13 +2,14 @@
 # For license information, please see license.txt
 
 
+from urllib.parse import urlencode
+
 import frappe
 import gocardless_pro
 from frappe import _
 from frappe.integrations.utils import create_payment_gateway, create_request_log
 from frappe.model.document import Document
 from frappe.utils import call_hook_method, cint, flt, get_url
-from six.moves.urllib.parse import urlencode
 
 
 class GoCardlessSettings(Document):
diff --git a/erpnext/erpnext_integrations/doctype/woocommerce_settings/woocommerce_settings.py b/erpnext/erpnext_integrations/doctype/woocommerce_settings/woocommerce_settings.py
index 8da52f4..309d2cb 100644
--- a/erpnext/erpnext_integrations/doctype/woocommerce_settings/woocommerce_settings.py
+++ b/erpnext/erpnext_integrations/doctype/woocommerce_settings/woocommerce_settings.py
@@ -2,12 +2,13 @@
 # For license information, please see license.txt
 
 
+from urllib.parse import urlparse
+
 import frappe
 from frappe import _
 from frappe.custom.doctype.custom_field.custom_field import create_custom_field
 from frappe.model.document import Document
 from frappe.utils.nestedset import get_root_of
-from six.moves.urllib.parse import urlparse
 
 
 class WoocommerceSettings(Document):
diff --git a/erpnext/erpnext_integrations/utils.py b/erpnext/erpnext_integrations/utils.py
index d922d87..30d3948 100644
--- a/erpnext/erpnext_integrations/utils.py
+++ b/erpnext/erpnext_integrations/utils.py
@@ -1,10 +1,10 @@
 import base64
 import hashlib
 import hmac
+from urllib.parse import urlparse
 
 import frappe
 from frappe import _
-from six.moves.urllib.parse import urlparse
 
 from erpnext import get_default_company
 
diff --git a/erpnext/manufacturing/doctype/bom/bom.py b/erpnext/manufacturing/doctype/bom/bom.py
index d953697..045e5bc 100644
--- a/erpnext/manufacturing/doctype/bom/bom.py
+++ b/erpnext/manufacturing/doctype/bom/bom.py
@@ -149,6 +149,7 @@
 		self.set_bom_material_details()
 		self.set_bom_scrap_items_detail()
 		self.validate_materials()
+		self.validate_transfer_against()
 		self.set_routing_operations()
 		self.validate_operations()
 		self.calculate_cost()
@@ -690,6 +691,12 @@
 			if act_pbom and act_pbom[0][0]:
 				frappe.throw(_("Cannot deactivate or cancel BOM as it is linked with other BOMs"))
 
+	def validate_transfer_against(self):
+		if not self.with_operations:
+			self.transfer_material_against = "Work Order"
+		if not self.transfer_material_against and not self.is_new():
+			frappe.throw(_("Setting {} is required").format(self.meta.get_label("transfer_material_against")), title=_("Missing value"))
+
 	def set_routing_operations(self):
 		if self.routing and self.with_operations and not self.operations:
 			self.get_routing()
diff --git a/erpnext/manufacturing/doctype/bom/test_bom.py b/erpnext/manufacturing/doctype/bom/test_bom.py
index 7d90933..53437c8 100644
--- a/erpnext/manufacturing/doctype/bom/test_bom.py
+++ b/erpnext/manufacturing/doctype/bom/test_bom.py
@@ -403,6 +403,36 @@
 
 		new_bom.delete()
 
+	def test_valid_transfer_defaults(self):
+		bom_with_op = frappe.db.get_value("BOM", {"item": "_Test FG Item 2", "with_operations": 1, "is_active": 1})
+		bom = frappe.copy_doc(frappe.get_doc("BOM", bom_with_op), ignore_no_copy=False)
+
+		# test defaults
+		bom.docstatus = 0
+		bom.transfer_material_against = None
+		bom.insert()
+		self.assertEqual(bom.transfer_material_against, "Work Order")
+
+		bom.reload()
+		bom.transfer_material_against = None
+		with self.assertRaises(frappe.ValidationError):
+			bom.save()
+		bom.reload()
+
+		# test saner default
+		bom.transfer_material_against = "Job Card"
+		bom.with_operations = 0
+		bom.save()
+		self.assertEqual(bom.transfer_material_against, "Work Order")
+
+		# test no value on existing doc
+		bom.transfer_material_against = None
+		bom.with_operations = 0
+		bom.save()
+		self.assertEqual(bom.transfer_material_against, "Work Order")
+		bom.delete()
+
+
 def get_default_bom(item_code="_Test FG Item 2"):
 	return frappe.db.get_value("BOM", {"item": item_code, "is_active": 1, "is_default": 1})
 
diff --git a/erpnext/manufacturing/doctype/work_order/work_order.py b/erpnext/manufacturing/doctype/work_order/work_order.py
index 170454c..93ca805 100644
--- a/erpnext/manufacturing/doctype/work_order/work_order.py
+++ b/erpnext/manufacturing/doctype/work_order/work_order.py
@@ -65,6 +65,7 @@
 		self.validate_warehouse_belongs_to_company()
 		self.calculate_operating_cost()
 		self.validate_qty()
+		self.validate_transfer_against()
 		self.validate_operation_time()
 		self.status = self.get_status()
 
@@ -72,6 +73,7 @@
 
 		self.set_required_items(reset_only_qty = len(self.get("required_items")))
 
+
 	def validate_sales_order(self):
 		if self.sales_order:
 			self.check_sales_order_on_hold_or_close()
@@ -625,6 +627,16 @@
 		if not self.qty > 0:
 			frappe.throw(_("Quantity to Manufacture must be greater than 0."))
 
+	def validate_transfer_against(self):
+		if not self.docstatus == 1:
+			# let user configure operations until they're ready to submit
+			return
+		if not self.operations:
+			self.transfer_material_against = "Work Order"
+		if not self.transfer_material_against:
+			frappe.throw(_("Setting {} is required").format(self.meta.get_label("transfer_material_against")), title=_("Missing value"))
+
+
 	def validate_operation_time(self):
 		for d in self.operations:
 			if not d.time_in_mins > 0:
diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index 728c059..3a1095f 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -340,4 +340,5 @@
 erpnext.patches.v14_0.delete_agriculture_doctypes
 erpnext.patches.v14_0.rearrange_company_fields
 erpnext.patches.v14_0.update_leave_notification_template
-erpnext.patches.v14_0.restore_einvoice_fields
\ No newline at end of file
+erpnext.patches.v14_0.restore_einvoice_fields
+erpnext.patches.v13_0.update_sane_transfer_against
diff --git a/erpnext/patches/v13_0/update_sane_transfer_against.py b/erpnext/patches/v13_0/update_sane_transfer_against.py
new file mode 100644
index 0000000..a163d38
--- /dev/null
+++ b/erpnext/patches/v13_0/update_sane_transfer_against.py
@@ -0,0 +1,11 @@
+import frappe
+
+
+def execute():
+	bom = frappe.qb.DocType("BOM")
+
+	(frappe.qb
+		.update(bom)
+		.set(bom.transfer_material_against, "Work Order")
+		.where(bom.with_operations == 0)
+	).run()
diff --git a/erpnext/regional/germany/utils/datev/datev_csv.py b/erpnext/regional/germany/utils/datev/datev_csv.py
index 2d1e02e..ec271a1 100644
--- a/erpnext/regional/germany/utils/datev/datev_csv.py
+++ b/erpnext/regional/germany/utils/datev/datev_csv.py
@@ -1,11 +1,11 @@
 import datetime
 import zipfile
 from csv import QUOTE_NONNUMERIC
+from io import BytesIO
 
 import frappe
 import pandas as pd
 from frappe import _
-from six import BytesIO
 
 from .datev_constants import DataCategory
 
diff --git a/erpnext/regional/report/datev/test_datev.py b/erpnext/regional/report/datev/test_datev.py
index 14d5495..052fb2a 100644
--- a/erpnext/regional/report/datev/test_datev.py
+++ b/erpnext/regional/report/datev/test_datev.py
@@ -1,9 +1,9 @@
 import zipfile
+from io import BytesIO
 from unittest import TestCase
 
 import frappe
 from frappe.utils import cstr, now_datetime, today
-from six import BytesIO
 
 from erpnext.accounts.doctype.sales_invoice.test_sales_invoice import create_sales_invoice
 from erpnext.regional.germany.utils.datev.datev_constants import (
diff --git a/erpnext/setup/doctype/item_group/item_group.py b/erpnext/setup/doctype/item_group/item_group.py
index c94b346..9f1eb75 100644
--- a/erpnext/setup/doctype/item_group/item_group.py
+++ b/erpnext/setup/doctype/item_group/item_group.py
@@ -3,6 +3,7 @@
 
 
 import copy
+from urllib.parse import quote
 
 import frappe
 from frappe import _
@@ -10,7 +11,6 @@
 from frappe.utils.nestedset import NestedSet
 from frappe.website.utils import clear_cache
 from frappe.website.website_generator import WebsiteGenerator
-from six.moves.urllib.parse import quote
 
 from erpnext.shopping_cart.filters import ProductFiltersBuilder
 from erpnext.shopping_cart.product_info import set_product_info_for_website
diff --git a/erpnext/stock/report/stock_ledger/stock_ledger.js b/erpnext/stock/report/stock_ledger/stock_ledger.js
index fe2417b..ef7c2cc 100644
--- a/erpnext/stock/report/stock_ledger/stock_ledger.js
+++ b/erpnext/stock/report/stock_ledger/stock_ledger.js
@@ -86,10 +86,10 @@
 	],
 	"formatter": function (value, row, column, data, default_formatter) {
 		value = default_formatter(value, row, column, data);
-		if (column.fieldname == "out_qty" && data.out_qty < 0) {
+		if (column.fieldname == "out_qty" && data && data.out_qty < 0) {
 			value = "<span style='color:red'>" + value + "</span>";
 		}
-		else if (column.fieldname == "in_qty" && data.in_qty > 0) {
+		else if (column.fieldname == "in_qty" && data && data.in_qty > 0) {
 			value = "<span style='color:green'>" + value + "</span>";
 		}