Fix DeepFashion startup on hyperview 0.6.1

demo.py

@@ -221,12 +221,19 @@ def select_deepfashion_records() -> list[dict[str, Any]]:
 def add_deepfashion_samples(dataset: hv.Dataset) -> None:
     existing_ids = {sample.id for sample in dataset.samples}
     media_dir = media_root()
-    image_rows: list[dict[str, Any]] = []
+    added = 0
+    updated = 0
+    skipped_existing = 0
     records = select_deepfashion_records()
 
     for record in records:
         item_id = str(record["item_ID"])
         sample_id = safe_sample_id(item_id)
+        existed = sample_id in existing_ids
+        if existed and not FORCE_SAMPLE_REFRESH:
+            skipped_existing += 1
+            continue
+
         destination = media_dir / f"{sample_id}.jpg"
         save_image(record["image"], destination)
         category = readable(record.get("category2") or "unknown").lower()
@@ -243,25 +250,13 @@ def add_deepfashion_samples(dataset: hv.Dataset) -> None:
             "source_dataset": HF_DATASET,
             "split": HF_SPLIT,
         }
-        image_rows.append(
-            {
-                "filepath": str(destination),
-                "label": category,
-                "metadata": metadata,
-                "sample_id": sample_id,
-            }
-        )
+        dataset.add_image(str(destination), label=category, metadata=metadata, sample_id=sample_id)
+        if existed:
+            updated += 1
+        else:
+            existing_ids.add(sample_id)
+            added += 1
 
-    upserted, skipped_existing = dataset.add_images(
-        image_rows,
-        skip_existing=not FORCE_SAMPLE_REFRESH,
-    )
-    updated = (
-        sum(1 for row in image_rows if str(row["sample_id"]) in existing_ids)
-        if FORCE_SAMPLE_REFRESH
-        else 0
-    )
-    added = upserted - updated
     if skipped_existing:
         print(f"Skipped {skipped_existing} existing DeepFashion sample rows.", flush=True)
     print(f"Prepared DeepFashion samples ({added} added, {updated} updated).", flush=True)