Getting hybrid property support.

inventory/models/inventory.py

@@ -1,6 +1,7 @@
 from typing import List, Optional
 
-from sqlalchemy import Boolean, DateTime, ForeignKey, Index, Integer, Unicode
+from sqlalchemy import Boolean, DateTime, ForeignKey, Integer, String, Unicode, case, cast, func
+from sqlalchemy.ext.hybrid import hybrid_property
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 from sqlalchemy.sql import expression as sql
 
@@ -57,3 +58,22 @@ class Inventory(Base, CRUDMixin):
             parts.append(f"location={repr(self.location.identifier)}")
 
         return f"<Inventory({', '.join(parts)})>"
+
+    @hybrid_property
+    def label(self):
+        if self.name:
+            return f"Name: {self.name}"
+        if self.barcode:
+            return f"Barcode: {self.barcode}"
+        if self.serial:
+            return f"Serial: {self.serial}"
+        return f"ID: {self.id}"
+
+    @label.expression
+    def label(cls):
+        return case(
+            (cls.name.isnot(None) & (cls.name != ''),    func.concat("Name: ", cls.name)),
+            (cls.barcode.isnot(None) & (cls.barcode != ''), func.concat("Barcode: ", cls.barcode)),
+            (cls.serial.isnot(None) & (cls.serial != ''),   func.concat("Serial: ", cls.serial)),
+            else_=func.concat("ID: ", cast(cls.id, String)),
+        )

inventory/routes/index.py

@@ -22,7 +22,7 @@ def init_index_routes(app):
                 "start_time",
                 "contact.last_name",
                 "contact.first_name",
-                "work_item.name",
+                "work_item.label",
                 "work_item.device_type.description"
             ],
             "sort": "start_time"
@@ -32,7 +32,7 @@ def init_index_routes(app):
             {"field": "start_time", "label": "Start", "format": "date"},
             {"field": "contact.last_name", "label": "Contact",
              "link": {"endpoint": "user.get_item", "params": {"id": "{contact.id}"}}},
-            {"field": "work_item.name", "label": "Work Item",
+            {"field": "work_item.label", "label": "Work Item",
              "link": {"endpoint": "inventory.get_item", "params": {"id": "{work_item.id}"}}},
             {"field": "work_item.device_type.description", "label": "Device Type"}
         ]