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

* feat(subcontracting): Added provision to create multiple Subcontracting Orders from a single Subcontracted Purchase Order

* refactor(new_sc_flow_2): Fixed error thrown by semgrep

erpnext/controllers/subcontracting_controller.py

@@ -103,6 +103,19 @@ class SubcontractingController(StockController):
 						_("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"])
 
@@ -1116,6 +1129,12 @@ 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