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refactor: add guard clause for readability

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Ankush Menat 2021-05-22 23:01:50 +05:30
parent 0b4858d8e5
commit 83e6e2e68a
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GPG Key ID: 8EA82E09BBD13AAF
1 changed files with 14 additions and 12 deletions
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26
erpnext/stock/doctype/item/item.py
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@ -953,20 +953,22 @@ class Item(WebsiteGenerator):
d.variant_of = self.variant_of
def cant_change(self):
if not self.get("__islocal"):
fields = ("has_serial_no", "is_stock_item", "valuation_method", "has_batch_no")
if self.get("__islocal"):
return
values = frappe.db.get_value("Item", self.name, fields, as_dict=True)
if not values.get('valuation_method') and self.get('valuation_method'):
values['valuation_method'] = frappe.db.get_single_value("Stock Settings", "valuation_method") or "FIFO"
fields = ("has_serial_no", "is_stock_item", "valuation_method", "has_batch_no")
if values:
for field in fields:
if cstr(self.get(field)) != cstr(values.get(field)):
if not self.check_if_linked_document_exists(field):
break # no linked document, allowed
else:
frappe.throw(_("As there are existing transactions against item {0}, you can not change the value of {1}").format(self.name, frappe.bold(self.meta.get_label(field))))
values = frappe.db.get_value("Item", self.name, fields, as_dict=True)
if not values.get('valuation_method') and self.get('valuation_method'):
values['valuation_method'] = frappe.db.get_single_value("Stock Settings", "valuation_method") or "FIFO"
if values:
for field in fields:
if cstr(self.get(field)) != cstr(values.get(field)):
if not self.check_if_linked_document_exists(field):
break # no linked document, allowed
else:
frappe.throw(_("As there are existing transactions against item {0}, you can not change the value of {1}").format(self.name, frappe.bold(self.meta.get_label(field))))
def check_if_linked_document_exists(self, field):
linked_doctypes = ["Delivery Note Item", "Sales Invoice Item", "POS Invoice Item", "Purchase Receipt Item",