Patch case addition to order form (#3990) (patch)

### Fixed

- The cases field in the response from the order form parser is only populated for relevant order types

cg/apps/orderform/orderform_parser.py

@@ -4,6 +4,7 @@
 
 from pydantic import BaseModel, ConfigDict, constr
 
+from cg.apps.orderform.utils import ORDER_TYPES_WITH_CASES
 from cg.constants import DataDelivery
 from cg.exc import OrderFormError
 from cg.models.orders.order import OrderType
@@ -142,10 +143,11 @@ def expand_case(case_id: str, case_samples: list[OrderSample]) -> OrderCase:
 
     def generate_orderform(self) -> Orderform:
         """Generate an orderform"""
-        cases_map: dict[str, list[OrderSample]] = self.group_cases()
         case_objs: list[OrderCase] = []
-        for case_id in cases_map:
-            case_objs.append(self.expand_case(case_id=case_id, case_samples=cases_map[case_id]))
+        if self.project_type in ORDER_TYPES_WITH_CASES:
+            cases_map: dict[str, list[OrderSample]] = self.group_cases()
+            for case_id in cases_map:
+                case_objs.append(self.expand_case(case_id=case_id, case_samples=cases_map[case_id]))
         return Orderform(
             comment=self.order_comment,
             samples=self.samples,

cg/apps/orderform/utils.py

@@ -1,5 +1,16 @@
+from cg.models.orders.constants import OrderType
 from cg.models.orders.excel_sample import ExcelSample
 
+ORDER_TYPES_WITH_CASES = [
+    OrderType.BALSAMIC,
+    OrderType.BALSAMIC_QC,
+    OrderType.BALSAMIC_UMI,
+    OrderType.MIP_DNA,
+    OrderType.MIP_RNA,
+    OrderType.RNAFUSION,
+    OrderType.TOMTE,
+]
+
 
 def are_all_samples_metagenome(samples: list[ExcelSample]) -> bool:
     """Check if all samples are metagenome samples"""