feat(subcontracting): Added provision to create multiple Subcontracting Orders against a single Purchase Order (backport #44711)

erpnext/buying/doctype/purchase_order/purchase_order.js

@@ -400,11 +400,15 @@ erpnext.buying.PurchaseOrderController = class PurchaseOrderController extends (
 									);
 								}
 							} else {
-								cur_frm.add_custom_button(
-									__("Subcontracting Order"),
-									this.make_subcontracting_order,
-									__("Create")
-								);
+								if (!doc.items.every((item) => item.qty == item.sco_qty)) {
+									this.frm.add_custom_button(
+										__("Subcontracting Order"),
+										() => {
+											me.make_subcontracting_order();
+										},
+										__("Create")
+									);
+								}
 							}
 						}
 					}

erpnext/buying/doctype/purchase_order/purchase_order.py

@@ -867,27 +867,40 @@ def make_inter_company_sales_order(source_name, target_doc=None):
 
 @frappe.whitelist()
 def make_subcontracting_order(source_name, target_doc=None, save=False, submit=False, notify=False):
-	target_doc = get_mapped_subcontracting_order(source_name, target_doc)
-
-	if (save or submit) and frappe.has_permission(target_doc.doctype, "create"):
-		target_doc.save()
+	if not is_po_fully_subcontracted(source_name):
+		target_doc = get_mapped_subcontracting_order(source_name, target_doc)
+
+		if (save or submit) and frappe.has_permission(target_doc.doctype, "create"):
+			target_doc.save()
+
+			if submit and frappe.has_permission(target_doc.doctype, "submit", target_doc):
+				try:
+					target_doc.submit()
+				except Exception as e:
+					target_doc.add_comment("Comment", _("Submit Action Failed") + "<br><br>" + str(e))
+
+			if notify:
+				frappe.msgprint(
+					_("Subcontracting Order {0} created.").format(
+						get_link_to_form(target_doc.doctype, target_doc.name)
+					),
+					indicator="green",
+					alert=True,
+				)
 
-		if submit and frappe.has_permission(target_doc.doctype, "submit", target_doc):
-			try:
-				target_doc.submit()
-			except Exception as e:
-				target_doc.add_comment("Comment", _("Submit Action Failed") + "<br><br>" + str(e))
+		return target_doc
+	else:
+		frappe.throw(_("This PO has been fully subcontracted."))
 
-		if notify:
-			frappe.msgprint(
-				_("Subcontracting Order {0} created.").format(
-					get_link_to_form(target_doc.doctype, target_doc.name)
-				),
-				indicator="green",
-				alert=True,
-			)
 
-	return target_doc
+def is_po_fully_subcontracted(po_name):
+	table = frappe.qb.DocType("Purchase Order Item")
+	query = (
+		frappe.qb.from_(table)
+		.select(table.name)
+		.where((table.parent == po_name) & (table.qty != table.sco_qty))
+	)
+	return not query.run(as_dict=True)
 
 
 def get_mapped_subcontracting_order(source_name, target_doc=None):
@@ -931,20 +944,12 @@ def post_process(source_doc, target_doc):
 					"material_request": "material_request",
 					"material_request_item": "material_request_item",
 				},
-				"field_no_map": [],
+				"field_no_map": ["qty", "fg_item_qty", "amount"],
+				"condition": lambda item: item.qty != item.sco_qty,
 			},
 		},
 		target_doc,
 		post_process,
 	)
 
 	return target_doc
-
-
-@frappe.whitelist()
-def is_subcontracting_order_created(po_name) -> bool:
-	return (
-		True
-		if frappe.db.exists("Subcontracting Order", {"purchase_order": po_name, "docstatus": ["=", 1]})
-		else False
-	)

erpnext/buying/doctype/purchase_order/test_purchase_order.py

@@ -1004,7 +1004,7 @@ def test_update_items_for_subcontracting_purchase_order(self):
 		)
 
 		def update_items(po, qty):
-			trans_items = [po.items[0].as_dict()]
+			trans_items = [po.items[0].as_dict().update({"docname": po.items[0].name})]
 			trans_items[0]["qty"] = qty
 			trans_items[0]["fg_item_qty"] = qty
 			trans_items = json.dumps(trans_items, default=str)
@@ -1059,6 +1059,73 @@ def update_items(po, qty):
 		self.assertEqual(po.items[0].qty, 30)
 		self.assertEqual(po.items[0].fg_item_qty, 30)
 
+	def test_new_sc_flow(self):
+		from erpnext.buying.doctype.purchase_order.purchase_order import make_subcontracting_order
+
+		po = create_po_for_sc_testing()
+		sco = make_subcontracting_order(po.name)
+
+		sco.items[0].qty = 5
+		sco.items.pop(1)
+		sco.items[1].qty = 25
+		sco.save()
+		sco.submit()
+
+		# Test - 1: Quantity of Service Items should change based on change in Quantity of its corresponding Finished Goods Item
+		self.assertEqual(sco.service_items[0].qty, 5)
+
+		# Test - 2: Subcontracted Quantity for the PO Items of each line item should be updated accordingly
+		po.reload()
+		self.assertEqual(po.items[0].sco_qty, 5)
+		self.assertEqual(po.items[1].sco_qty, 0)
+		self.assertEqual(po.items[2].sco_qty, 12.5)
+
+		# Test - 3: Amount for both FG Item and its Service Item should be updated correctly based on change in Quantity
+		self.assertEqual(sco.items[0].amount, 2000)
+		self.assertEqual(sco.service_items[0].amount, 500)
+
+		# Test - 4: Service Items should be removed if its corresponding Finished Good line item is deleted
+		self.assertEqual(len(sco.service_items), 2)
+
+		# Test - 5: Service Item quantity calculation should be based upon conversion factor calculated from its corresponding PO Item
+		self.assertEqual(sco.service_items[1].qty, 12.5)
+
+		sco = make_subcontracting_order(po.name)
+
+		sco.items[0].qty = 6
+
+		# Test - 6: Saving document should not be allowed if Quantity exceeds available Subcontracting Quantity of any Purchase Order Item
+		self.assertRaises(frappe.ValidationError, sco.save)
+
+		sco.items[0].qty = 5
+		sco.items.pop()
+		sco.items.pop()
+		sco.save()
+		sco.submit()
+
+		sco = make_subcontracting_order(po.name)
+
+		# Test - 7: Since line item 1 is now fully subcontracted, new SCO should by default only have the remaining 2 line items
+		self.assertEqual(len(sco.items), 2)
+
+		sco.items.pop(0)
+		sco.save()
+		sco.submit()
+
+		# Test - 8: Subcontracted Quantity for each PO Item should be subtracted if SCO gets cancelled
+		po.reload()
+		self.assertEqual(po.items[2].sco_qty, 25)
+		sco.cancel()
+		po.reload()
+		self.assertEqual(po.items[2].sco_qty, 12.5)
+
+		sco = make_subcontracting_order(po.name)
+		sco.save()
+		sco.submit()
+
+		# Test - 8: Since this PO is now fully subcontracted, creating a new SCO from it should throw error
+		self.assertRaises(frappe.ValidationError, make_subcontracting_order, po.name)
+
 	@change_settings("Buying Settings", {"auto_create_subcontracting_order": 1})
 	def test_auto_create_subcontracting_order(self):
 		from erpnext.controllers.tests.test_subcontracting_controller import (
@@ -1124,6 +1191,53 @@ def test_po_billed_amount_against_return_entry(self):
 		self.assertEqual(po.per_billed, 100)
 
 
+def create_po_for_sc_testing():
+	from erpnext.controllers.tests.test_subcontracting_controller import (
+		make_bom_for_subcontracted_items,
+		make_raw_materials,
+		make_service_items,
+		make_subcontracted_items,
+	)
+
+	make_subcontracted_items()
+	make_raw_materials()
+	make_service_items()
+	make_bom_for_subcontracted_items()
+
+	service_items = [
+		{
+			"warehouse": "_Test Warehouse - _TC",
+			"item_code": "Subcontracted Service Item 1",
+			"qty": 10,
+			"rate": 100,
+			"fg_item": "Subcontracted Item SA1",
+			"fg_item_qty": 10,
+		},
+		{
+			"warehouse": "_Test Warehouse - _TC",
+			"item_code": "Subcontracted Service Item 2",
+			"qty": 20,
+			"rate": 25,
+			"fg_item": "Subcontracted Item SA2",
+			"fg_item_qty": 15,
+		},
+		{
+			"warehouse": "_Test Warehouse - _TC",
+			"item_code": "Subcontracted Service Item 3",
+			"qty": 25,
+			"rate": 10,
+			"fg_item": "Subcontracted Item SA3",
+			"fg_item_qty": 50,
+		},
+	]
+
+	return create_purchase_order(
+		rm_items=service_items,
+		is_subcontracted=1,
+		supplier_warehouse="_Test Warehouse 1 - _TC",
+	)
+
+
 def prepare_data_for_internal_transfer():
 	from erpnext.accounts.doctype.sales_invoice.test_sales_invoice import create_internal_supplier
 	from erpnext.selling.doctype.customer.test_customer import create_internal_customer

erpnext/buying/doctype/purchase_order_item/purchase_order_item.json

@@ -1,7 +1,7 @@
 {
  "actions": [],
  "autoname": "hash",
- "creation": "2013-05-24 19:29:06",
+ "creation": "2024-12-09 12:54:24.652161",
  "doctype": "DocType",
  "document_type": "Document",
  "editable_grid": 1,
@@ -26,6 +26,7 @@
   "quantity_and_rate",
   "qty",
   "stock_uom",
+  "sco_qty",
   "col_break2",
   "uom",
   "conversion_factor",
@@ -909,13 +910,21 @@
   {
    "fieldname": "column_break_fyqr",
    "fieldtype": "Column Break"
+  },
+  {
+   "allow_on_submit": 1,
+   "fieldname": "sco_qty",
+   "fieldtype": "Float",
+   "label": "Subcontracted Quantity",
+   "no_copy": 1,
+   "read_only": 1
   }
  ],
  "idx": 1,
  "index_web_pages_for_search": 1,
  "istable": 1,
  "links": [],
- "modified": "2024-02-05 11:23:24.859435",
+ "modified": "2024-12-10 12:11:18.536089",
  "modified_by": "Administrator",
  "module": "Buying",
  "name": "Purchase Order Item",

erpnext/buying/doctype/purchase_order_item/purchase_order_item.py

@@ -80,6 +80,7 @@ class PurchaseOrderItem(Document):
 		sales_order_item: DF.Data | None
 		sales_order_packed_item: DF.Data | None
 		schedule_date: DF.Date
+		sco_qty: DF.Float
 		stock_qty: DF.Float
 		stock_uom: DF.Link
 		stock_uom_rate: DF.Currency

erpnext/controllers/subcontracting_controller.py

@@ -103,6 +103,19 @@ def validate_items(self):
 						_("Row {0}: Item {1} must be a subcontracted item.").format(item.idx, item.item_name)
 					)
 
+				if (
+					self.doctype not in "Subcontracting Receipt"
+					and item.qty
+					> flt(get_pending_sco_qty(self.purchase_order).get(item.purchase_order_item))
+					/ item.sc_conversion_factor
+				):
+					frappe.throw(
+						_(
+							"Row {0}: Item {1}'s quantity cannot be higher than the available quantity."
+						).format(item.idx, item.item_name)
+					)
+				item.amount = item.qty * item.rate
+
 				if item.bom:
 					is_active, bom_item = frappe.get_value("BOM", item.bom, ["is_active", "item"])
 
@@ -1110,6 +1123,12 @@ def get_item_details(items):
 	return item_details
 
 
+def get_pending_sco_qty(po_name):
+	table = frappe.qb.DocType("Purchase Order Item")
+	query = frappe.qb.from_(table).select(table.name, table.qty, table.sco_qty).where(table.parent == po_name)
+	return {item.name: item.qty - item.sco_qty for item in query.run(as_dict=True)}
+
+
 @frappe.whitelist()
 def make_rm_stock_entry(
 	subcontract_order, rm_items=None, order_doctype="Subcontracting Order", target_doc=None

erpnext/controllers/tests/test_subcontracting_controller.py

@@ -1261,6 +1261,7 @@ def make_raw_materials():
 	for item, properties in raw_materials.items():
 		if not frappe.db.exists("Item", item):
 			properties.update({"is_stock_item": 1})
+			properties.update({"valuation_rate": 100})
 			make_item(item, properties)
 
 
@@ -1311,7 +1312,7 @@ def make_bom_for_subcontracted_items():
 
 	for item_code, raw_materials in boms.items():
 		if not frappe.db.exists("BOM", {"item": item_code}):
-			make_bom(item=item_code, raw_materials=raw_materials, rate=100)
+			make_bom(item=item_code, raw_materials=raw_materials, rate=100, currency="INR")
 
 
 def set_backflush_based_on(based_on):

erpnext/subcontracting/doctype/subcontracting_order/subcontracting_order.js

@@ -5,10 +5,38 @@ frappe.provide("erpnext.buying");
 
 erpnext.landed_cost_taxes_and_charges.setup_triggers("Subcontracting Order");
 
+// client script for Subcontracting Order Item is not necessarily required as the server side code will do everything that is necessary.
+// this is just so that the user does not get potentially confused
+frappe.ui.form.on("Subcontracting Order Item", {
+	qty(frm, cdt, cdn) {
+		const row = locals[cdt][cdn];
+		frappe.model.set_value(cdt, cdn, "amount", row.qty * row.rate);
+		const service_item = frm.doc.service_items[row.idx - 1];
+		frappe.model.set_value(
+			service_item.doctype,
+			service_item.name,
+			"qty",
+			row.qty * row.sc_conversion_factor
+		);
+		frappe.model.set_value(service_item.doctype, service_item.name, "fg_item_qty", row.qty);
+		frappe.model.set_value(
+			service_item.doctype,
+			service_item.name,
+			"amount",
+			row.qty * row.sc_conversion_factor * service_item.rate
+		);
+	},
+	before_items_remove(frm, cdt, cdn) {
+		const row = locals[cdt][cdn];
+		frm.toggle_enable(["service_items"], true);
+		frm.get_field("service_items").grid.grid_rows[row.idx - 1].remove();
+		frm.toggle_enable(["service_items"], false);
+	},
+});
+
 frappe.ui.form.on("Subcontracting Order", {
 	setup: (frm) => {
 		frm.get_field("items").grid.cannot_add_rows = true;
-		frm.get_field("items").grid.only_sortable();
 		frm.trigger("set_queries");
 
 		frm.set_indicator_formatter("item_code", (doc) => (doc.qty <= doc.received_qty ? "green" : "orange"));