fix(plaid): cannot reset plaid link for a bank account (#26282)

erpnext/accounts/doctype/bank/bank.js

@@ -109,5 +109,4 @@ erpnext.integrations.refreshPlaidLink = class refreshPlaidLink {
 	plaid_success(token, response) {
 		frappe.show_alert({ message: __('Plaid Link Updated'), indicator: 'green' });
 	}
-};
-
+};

erpnext/erpnext_integrations/doctype/plaid_settings/plaid_connector.py

@@ -99,5 +99,7 @@ class PlaidConnector():
 				response = self.client.Transactions.get(self.access_token, start_date=start_date, end_date=end_date, offset=len(transactions))
 				transactions.extend(response["transactions"])
 			return transactions
+		except ItemError as e:
+			raise e
 		except Exception:
 			frappe.log_error(frappe.get_traceback(), _("Plaid transactions sync error"))

erpnext/erpnext_integrations/doctype/plaid_settings/plaid_settings.js

@@ -15,6 +15,10 @@ frappe.ui.form.on('Plaid Settings', {
 			frm.add_custom_button(__('Link a new bank account'), () => {
 				new erpnext.integrations.plaidLink(frm);
 			});
+
+			frm.add_custom_button(__('Reset Plaid Link'), () => {
+				new erpnext.integrations.plaidLink(frm);
+			});
 		}
 	}
 });

erpnext/erpnext_integrations/doctype/plaid_settings/plaid_settings.py

@@ -12,6 +12,7 @@ from frappe.desk.doctype.tag.tag import add_tag
 from frappe.model.document import Document
 from frappe.utils import add_months, formatdate, getdate, today
 
+from plaid.errors import ItemError
 
 class PlaidSettings(Document):
 	@staticmethod
@@ -50,7 +51,7 @@ def add_institution(token, response):
 			})
 			bank.insert()
 		except Exception:
-			frappe.throw(frappe.get_traceback())
+			frappe.log_error(frappe.get_traceback(), title=_('Plaid Link Error'))
 	else:
 		bank = frappe.get_doc("Bank", response["institution"]["name"])
 		bank.plaid_access_token = access_token
@@ -82,7 +83,12 @@ def add_bank_accounts(response, bank, company):
 		if not acc_subtype:
 			add_account_subtype(account["subtype"])
 
-		if not frappe.db.exists("Bank Account", dict(integration_id=account["id"])):
+		existing_bank_account = frappe.db.exists("Bank Account", {
+			'account_name': account["name"],
+			'bank': bank["bank_name"]
+		})
+
+		if not existing_bank_account:
 			try:
 				new_account = frappe.get_doc({
 					"doctype": "Bank Account",
@@ -102,10 +108,27 @@ def add_bank_accounts(response, bank, company):
 			except frappe.UniqueValidationError:
 				frappe.msgprint(_("Bank account {0} already exists and could not be created again").format(account["name"]))
 			except Exception:
-				frappe.throw(frappe.get_traceback())
+				frappe.log_error(frappe.get_traceback(), title=_("Plaid Link Error"))
+				frappe.throw(_("There was an error creating Bank Account while linking with Plaid."), 
+					title=_("Plaid Link Failed"))
 
 		else:
-			result.append(frappe.db.get_value("Bank Account", dict(integration_id=account["id"]), "name"))
+			try:
+				existing_account = frappe.get_doc('Bank Account', existing_bank_account)
+				existing_account.update({
+					"bank": bank["bank_name"],
+					"account_name": account["name"],
+					"account_type": account.get("type", ""),
+					"account_subtype": account.get("subtype", ""),
+					"mask": account.get("mask", ""),
+					"integration_id": account["id"]
+				})
+				existing_account.save()
+				result.append(existing_bank_account)
+			except Exception:
+				frappe.log_error(frappe.get_traceback(), title=_("Plaid Link Error"))
+				frappe.throw(_("There was an error updating Bank Account {} while linking with Plaid.").format(
+					existing_bank_account), title=_("Plaid Link Failed"))
 
 	return result
 
@@ -174,9 +197,16 @@ def get_transactions(bank, bank_account=None, start_date=None, end_date=None):
 		account_id = None
 
 	plaid = PlaidConnector(access_token)
-	transactions = plaid.get_transactions(start_date=start_date, end_date=end_date, account_id=account_id)
 
-	return transactions
+	try:
+		transactions = plaid.get_transactions(start_date=start_date, end_date=end_date, account_id=account_id)
+	except ItemError as e:
+		if e.code == "ITEM_LOGIN_REQUIRED":
+			msg = _("There was an error syncing transactions.") + " "
+			msg += _("Please refresh or reset the Plaid linking of the Bank {}.").format(bank) + " "
+			frappe.log_error(msg, title=_("Plaid Link Refresh Required"))
+
+	return transactions or []
 
 
 def new_bank_transaction(transaction):