Add detailed trade_date handling and error logging

apps/api/routers/trade_hf.py

@@ -74,29 +74,38 @@ async def search_trade_records(
         records = result.scalars().all()
         
         # 转换为响应格式
-        items = [
-            TradeRecordResponse(
-                record_id=r.record_id,
-                source_record_id=r.source_record_id,
-                source_country=r.source_country,
-                trade_direction=r.trade_direction,
-                trade_date=r.trade_date if r.trade_date else datetime(2020, 1, 1),
-                importer_name=r.importer_name or "",
-                exporter_name=r.exporter_name or "",
-                hs_code=r.hs_code or "",
-                product_name=r.product_name or "",
-                amount=r.amount,
-                currency=r.currency or "",
-                weight=r.weight,
-                weight_unit=r.weight_unit or "",
-                origin_country=r.origin_country or "",
-                destination_country=r.destination_country or "",
-                departure_port=r.departure_port or "",
-                arrival_port=r.arrival_port or "",
-                transport_mode=r.transport_mode or ""
-            )
-            for r in records
-        ]
+        items = []
+        for r in records:
+            try:
+                # 处理trade_date：如果是空字符串或None，使用默认日期
+                if not r.trade_date or (isinstance(r.trade_date, str) and r.trade_date.strip() == ''):
+                    trade_date = datetime(2020, 1, 1)
+                else:
+                    trade_date = r.trade_date
+                
+                items.append(TradeRecordResponse(
+                    record_id=r.record_id,
+                    source_record_id=r.source_record_id,
+                    source_country=r.source_country,
+                    trade_direction=r.trade_direction,
+                    trade_date=trade_date,
+                    importer_name=r.importer_name or "",
+                    exporter_name=r.exporter_name or "",
+                    hs_code=r.hs_code or "",
+                    product_name=r.product_name or "",
+                    amount=r.amount,
+                    currency=r.currency or "",
+                    weight=r.weight,
+                    weight_unit=r.weight_unit or "",
+                    origin_country=r.origin_country or "",
+                    destination_country=r.destination_country or "",
+                    departure_port=r.departure_port or "",
+                    arrival_port=r.arrival_port or "",
+                    transport_mode=r.transport_mode or ""
+                ))
+            except Exception as e:
+                print(f"Error processing record {r.record_id}: trade_date={repr(r.trade_date)}, error={e}")
+                raise
         
         return PaginatedResponse(
             items=items,