feat: add patch for dunning
diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index 18bd10f..03ef5de 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -339,3 +339,4 @@
execute:frappe.delete_doc('DocType', 'Cash Flow Mapping Template', ignore_missing=True)
execute:frappe.delete_doc('DocType', 'Cash Flow Mapping Accounts', ignore_missing=True)
erpnext.patches.v14_0.cleanup_workspaces
+erpnext.patches.v14_0.single_to_multi_dunning
diff --git a/erpnext/patches/v14_0/single_to_multi_dunning.py b/erpnext/patches/v14_0/single_to_multi_dunning.py
new file mode 100644
index 0000000..40fba04
--- /dev/null
+++ b/erpnext/patches/v14_0/single_to_multi_dunning.py
@@ -0,0 +1,46 @@
+import frappe
+from erpnext.accounts.general_ledger import make_reverse_gl_entries
+
+def execute():
+ frappe.reload_doc("accounts", "doctype", "overdue_payment")
+ frappe.reload_doc("accounts", "doctype", "dunning")
+
+ all_dunnings = frappe.get_all("Dunning", pluck="name")
+ for dunning_name in all_dunnings:
+ dunning = frappe.get_doc("Dunning", dunning_name)
+ if not dunning.sales_invoice:
+ # nothing we can do
+ continue
+
+ if dunning.overdue_payments:
+ # something's already here, doesn't need patching
+ continue
+
+ payment_schedules = frappe.get_all("Payment Schedule",
+ filters={"parent": dunning.sales_invoice},
+ fields=[
+ "parent as sales_invoice",
+ "name as payment_schedule",
+ "payment_term",
+ "due_date",
+ "invoice_portion",
+ "payment_amount",
+ # at the time of creating this dunning, the full amount was outstanding
+ "payment_amount as outstanding",
+ "'0' as paid_amount",
+ "discounted_amount"
+ ]
+ )
+
+ dunning.extend("overdue_payments", payment_schedules)
+ dunning.validate()
+
+ dunning.flags.ignore_validate_update_after_submit = True
+ dunning.save()
+
+ if dunning.status != "Resolved":
+ # With the new logic, dunning amount gets recorded as additional income
+ # at time of payment. We don't want to record the dunning amount twice,
+ # so we reverse previous GL Entries that recorded the dunning amount at
+ # time of submission of the Dunning.
+ make_reverse_gl_entries(voucher_type="Dunning", voucher_no=dunning.name)