Merge branch 'develop' into debit-credit-opening-invoice-tool
diff --git a/erpnext/accounts/doctype/opening_invoice_creation_tool/opening_invoice_creation_tool.py b/erpnext/accounts/doctype/opening_invoice_creation_tool/opening_invoice_creation_tool.py
index d51856a..ee2092a 100644
--- a/erpnext/accounts/doctype/opening_invoice_creation_tool/opening_invoice_creation_tool.py
+++ b/erpnext/accounts/doctype/opening_invoice_creation_tool/opening_invoice_creation_tool.py
@@ -155,7 +155,8 @@
 			"posting_date": row.posting_date,
 			frappe.scrub(row.party_type): row.party,
 			"is_pos": 0,
-			"doctype": "Sales Invoice" if self.invoice_type == "Sales" else "Purchase Invoice"
+			"doctype": "Sales Invoice" if self.invoice_type == "Sales" else "Purchase Invoice",
+			"update_stock": 0
 		})
 
 		accounting_dimension = get_accounting_dimensions()
diff --git a/erpnext/accounts/doctype/opening_invoice_creation_tool/test_opening_invoice_creation_tool.py b/erpnext/accounts/doctype/opening_invoice_creation_tool/test_opening_invoice_creation_tool.py
index 54229f5..bdfe532 100644
--- a/erpnext/accounts/doctype/opening_invoice_creation_tool/test_opening_invoice_creation_tool.py
+++ b/erpnext/accounts/doctype/opening_invoice_creation_tool/test_opening_invoice_creation_tool.py
@@ -7,17 +7,24 @@
 import unittest
 
 test_dependencies = ["Customer", "Supplier"]
+from frappe.custom.doctype.property_setter.property_setter import make_property_setter
 from erpnext.accounts.doctype.opening_invoice_creation_tool.opening_invoice_creation_tool import get_temporary_opening_account
 
 class TestOpeningInvoiceCreationTool(unittest.TestCase):
-	def make_invoices(self, invoice_type="Sales"):
+	def setUp(self):
+		if not frappe.db.exists("Company", "_Test Opening Invoice Company"):
+			make_company()
+
+	def make_invoices(self, invoice_type="Sales", company=None, party_1=None, party_2=None):
 		doc = frappe.get_single("Opening Invoice Creation Tool")
-		args = get_opening_invoice_creation_dict(invoice_type=invoice_type)
+		args = get_opening_invoice_creation_dict(invoice_type=invoice_type, company=company,
+			party_1=party_1, party_2=party_2)
 		doc.update(args)
 		return doc.make_invoices()
 
 	def test_opening_sales_invoice_creation(self):
-		invoices = self.make_invoices()
+		property_setter = make_property_setter("Sales Invoice", "update_stock", "default", 1, "Check")
+		invoices = self.make_invoices(company="_Test Opening Invoice Company")
 
 		self.assertEqual(len(invoices), 2)
 		expected_value = {
@@ -27,6 +34,13 @@
 		}
 		self.check_expected_values(invoices, expected_value)
 
+		si = frappe.get_doc("Sales Invoice", invoices[0])
+
+		# Check if update stock is not enabled
+		self.assertEqual(si.update_stock, 0)
+
+		property_setter.delete()
+
 	def check_expected_values(self, invoices, expected_value, invoice_type="Sales"):
 		doctype = "Sales Invoice" if invoice_type == "Sales" else "Purchase Invoice"
 
@@ -36,7 +50,7 @@
 				self.assertEqual(si.get(field, ""), expected_value[invoice_idx][field_idx])
 
 	def test_opening_purchase_invoice_creation(self):
-		invoices = self.make_invoices(invoice_type="Purchase")
+		invoices = self.make_invoices(invoice_type="Purchase", company="_Test Opening Invoice Company")
 
 		self.assertEqual(len(invoices), 2)
 		expected_value = {
@@ -46,6 +60,32 @@
 		}
 		self.check_expected_values(invoices, expected_value, "Purchase")
 
+	def test_opening_sales_invoice_creation_with_missing_debit_account(self):
+		company = "_Test Opening Invoice Company"
+		party_1, party_2 = make_customer("Customer A"), make_customer("Customer B")
+
+		old_default_receivable_account = frappe.db.get_value("Company", company, "default_receivable_account")
+		frappe.db.set_value("Company", company, "default_receivable_account", "")
+
+		if not frappe.db.exists("Cost Center", "_Test Opening Invoice Company - _TOIC"):
+			cc = frappe.get_doc({"doctype": "Cost Center", "cost_center_name": "_Test Opening Invoice Company",
+				"is_group": 1, "company": "_Test Opening Invoice Company"})
+			cc.insert(ignore_mandatory=True)
+			cc2 = frappe.get_doc({"doctype": "Cost Center", "cost_center_name": "Main", "is_group": 0,
+				"company": "_Test Opening Invoice Company", "parent_cost_center": cc.name})
+			cc2.insert()
+
+		frappe.db.set_value("Company", company, "cost_center", "Main - _TOIC")
+
+		self.make_invoices(company="_Test Opening Invoice Company", party_1=party_1, party_2=party_2)
+
+		# Check if missing debit account error raised
+		error_log = frappe.db.exists("Error Log", {"error": ["like", "%erpnext.controllers.accounts_controller.AccountMissingError%"]})
+		self.assertTrue(error_log)
+
+		# teardown
+		frappe.db.set_value("Company", company, "default_receivable_account", old_default_receivable_account)
+
 def get_opening_invoice_creation_dict(**args):
 	party = "Customer" if args.get("invoice_type", "Sales") == "Sales" else "Supplier"
 	company = args.get("company", "_Test Company")
@@ -57,7 +97,7 @@
 			{
 				"qty": 1.0,
 				"outstanding_amount": 300,
-				"party": "_Test {0}".format(party),
+				"party": args.get("party_1") or "_Test {0}".format(party),
 				"item_name": "Opening Item",
 				"due_date": "2016-09-10",
 				"posting_date": "2016-09-05",
@@ -66,7 +106,7 @@
 			{
 				"qty": 2.0,
 				"outstanding_amount": 250,
-				"party": "_Test {0} 1".format(party),
+				"party": args.get("party_2") or "_Test {0} 1".format(party),
 				"item_name": "Opening Item",
 				"due_date": "2016-09-10",
 				"posting_date": "2016-09-05",
@@ -76,4 +116,31 @@
 	})
 
 	invoice_dict.update(args)
-	return invoice_dict
\ No newline at end of file
+	return invoice_dict
+
+def make_company():
+	if frappe.db.exists("Company", "_Test Opening Invoice Company"):
+		return frappe.get_doc("Company", "_Test Opening Invoice Company")
+
+	company = frappe.new_doc("Company")
+	company.company_name = "_Test Opening Invoice Company"
+	company.abbr = "_TOIC"
+	company.default_currency = "INR"
+	company.country = "India"
+	company.insert()
+	return company
+
+def make_customer(customer=None):
+	customer_name = customer or "Opening Customer"
+	customer = frappe.get_doc({
+		"doctype": "Customer",
+		"customer_name": customer_name,
+		"customer_group": "All Customer Groups",
+		"customer_type": "Company",
+		"territory": "All Territories"
+	})
+	if not frappe.db.exists("Customer", customer_name):
+		customer.insert(ignore_permissions=True)
+		return customer.name
+	else:
+		return frappe.db.exists("Customer", customer_name)
\ No newline at end of file
diff --git a/erpnext/accounts/doctype/process_deferred_accounting/test_process_deferred_accounting.py b/erpnext/accounts/doctype/process_deferred_accounting/test_process_deferred_accounting.py
index 31356c6..e08a0e5 100644
--- a/erpnext/accounts/doctype/process_deferred_accounting/test_process_deferred_accounting.py
+++ b/erpnext/accounts/doctype/process_deferred_accounting/test_process_deferred_accounting.py
@@ -21,7 +21,7 @@
 		item.no_of_months = 12
 		item.save()
 
-		si = create_sales_invoice(item=item.name, posting_date="2019-01-10", do_not_submit=True)
+		si = create_sales_invoice(item=item.name, update_stock=0, posting_date="2019-01-10", do_not_submit=True)
 		si.items[0].enable_deferred_revenue = 1
 		si.items[0].service_start_date = "2019-01-10"
 		si.items[0].service_end_date = "2019-03-15"
diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
index 91c4dfb..3a035b8 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
@@ -147,6 +147,11 @@
 			throw(_("Conversion rate cannot be 0 or 1"))
 
 	def validate_credit_to_acc(self):
+		if not self.credit_to:
+			self.credit_to = get_party_account("Supplier", self.supplier, self.company)
+			if not self.credit_to:
+				self.raise_missing_debit_credit_account_error("Supplier", self.supplier)
+
 		account = frappe.db.get_value("Account", self.credit_to,
 			["account_type", "report_type", "account_currency"], as_dict=True)
 
diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
index af6c696..0b16763 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
@@ -472,6 +472,11 @@
 		return frappe.db.sql("select abbr from tabCompany where name=%s", self.company)[0][0]
 
 	def validate_debit_to_acc(self):
+		if not self.debit_to:
+			self.debit_to = get_party_account("Customer", self.customer, self.company)
+			if not self.debit_to:
+				self.raise_missing_debit_credit_account_error("Customer", self.customer)
+
 		account = frappe.get_cached_value("Account", self.debit_to,
 			["account_type", "report_type", "account_currency"], as_dict=True)
 
diff --git a/erpnext/controllers/accounts_controller.py b/erpnext/controllers/accounts_controller.py
index 6108a61..93a79ec 100644
--- a/erpnext/controllers/accounts_controller.py
+++ b/erpnext/controllers/accounts_controller.py
@@ -23,6 +23,8 @@
 from erpnext.stock.get_item_details import get_item_warehouse, _get_item_tax_template, get_item_tax_map
 from erpnext.stock.doctype.packed_item.packed_item import make_packing_list
 
+class AccountMissingError(frappe.ValidationError): pass
+
 force_item_fields = ("item_group", "brand", "stock_uom", "is_fixed_asset", "item_tax_rate", "pricing_rules")
 
 class AccountsController(TransactionBase):
@@ -735,6 +737,21 @@
 
 		return self._abbr
 
+	def raise_missing_debit_credit_account_error(self, party_type, party):
+		"""Raise an error if debit to/credit to account does not exist."""
+		db_or_cr = frappe.bold("Debit To") if self.doctype == "Sales Invoice" else frappe.bold("Credit To")
+		rec_or_pay = "Receivable" if self.doctype == "Sales Invoice" else "Payable"
+
+		link_to_party = frappe.utils.get_link_to_form(party_type, party)
+		link_to_company = frappe.utils.get_link_to_form("Company", self.company)
+
+		message = _("{0} Account not found against Customer {1}.").format(db_or_cr, frappe.bold(party) or '')
+		message += "<br>" + _("Please set one of the following:") + "<br>"
+		message += "<br><ul><li>" + _("'Account' in the Accounting section of Customer {0}").format(link_to_party) + "</li>"
+		message += "<li>" + _("'Default {0} Account' in Company {1}").format(rec_or_pay, link_to_company) + "</li></ul>"
+
+		frappe.throw(message, title=_("Account Missing"), exc=AccountMissingError)
+
 	def validate_party(self):
 		party_type, party = self.get_party()
 		validate_party_frozen_disabled(party_type, party)