fix(pl): sync dibang inventory and weighing fields after rearrange

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/services/pl_dibang_bridge_service.py

@@ -425,6 +425,52 @@ def _inventory_has_weighing_slip(db: Session, inventory_id: str) -> bool:
     )
 
 
+def _sync_weighing_slip_business_fields(
+    db: Session,
+    *,
+    inventory: DbInboundOutbound,
+    user_id: Optional[str],
+) -> None:
+    """按出入库正文回写关联过磅单业务字段；称重数字一律不动。"""
+    slips = (
+        db.query(DbWeighingSlip)
+        .filter(
+            DbWeighingSlip.inbound_outbound_id == inventory.id,
+            DbWeighingSlip.del_flag == 0,
+            DbWeighingSlip.is_voided == 0,
+        )
+        .all()
+    )
+    if not slips:
+        return
+
+    partner = (inventory.partner_company or "").strip()
+    business_type = (inventory.business_type or "").strip()
+    for slip in slips:
+        plate = (inventory.vehicle_no or "").strip()
+        if plate:
+            slip.vehicle_no = plate
+        if inventory.product_id:
+            slip.product_id = inventory.product_id
+        if inventory.product:
+            slip.cargo_name = inventory.product
+        slip.specification = inventory.specification
+        if business_type:
+            slip.business_type = business_type
+        if inventory.plan_no:
+            slip.plan_no = inventory.plan_no
+        if inventory.batch_no:
+            slip.batch_no = inventory.batch_no
+        if inventory.purchase_plan_id:
+            slip.purchase_plan_id = inventory.purchase_plan_id
+        if partner:
+            if business_type == "入库":
+                slip.supplier = partner
+            else:
+                slip.consignee = partner
+        slip.update_by = user_id
+
+
 def revoke_regeneratable_dibang_for_transport(
     db: Session,
     *,
@@ -654,45 +700,10 @@ def _update_existing_stop_inventory(
     dept_id: str,
     warnings: list[str],
 ) -> DibangInventoryLinkResult:
-    """就地更新已有出入库可变字段；不可编辑时写 warnings，不抛错。"""
-    inv_product_id = (inventory.product_id or "").strip()
-    new_product_id = (product.product_id or "").strip()
-    if inv_product_id and new_product_id and inv_product_id != new_product_id:
-        label = inventory.batch_no or inventory.id
-        raise ValueError(
-            f"出入库单 {label} 已关联产品，禁止更换为其他产品。请取消地磅后重新勾选，或保留原产品。"
-        )
-
+    """就地强制同步出入库正文（含已过磅），并回写关联过磅单业务字段。"""
     label = inventory.batch_no or inventory.id
-    editable = _inventory_mutable_editable(db, inventory)
-
-    if not editable:
-        status = (inventory.status or "").strip() or "未知状态"
-        if _inventory_has_weighing_slip(db, inventory.id):
-            reason = "已关联地磅单"
-        else:
-            reason = f"状态：{status}"
-        warnings.append(
-            f"出入库单 {label}（{reason}）未同步往来单位/车牌/数量等可变字段，请在地磅管理中手工处理"
-        )
-        # 备注中计划编号文案仍可校正
-        desired_remark = f"运输计划 {plan.plan_no}"
-        if (inventory.remark or "").strip() != desired_remark:
-            inventory.remark = desired_remark
-            inventory.update_by = user_id
-        if (link.remark or "").strip() != desired_remark:
-            link.remark = desired_remark
-            link.update_by = user_id
-        return DibangInventoryLinkResult(
-            plan_product_id=product.plan_product_id,
-            product_name=product.product_name or "",
-            db_purchase_plan_id=link.db_purchase_plan_id or "",
-            db_inventory_id=inventory.id,
-            batch_no=inventory.batch_no or "",
-            plan_no=(inventory.plan_no or plan.plan_no) or "",
-        )
 
-    # —— 可编辑：更新 partner / vehicle / quantity / date（跨月改挂）——
+    # —— 强制更新 partner / vehicle / 产品快照 / quantity / date（跨月改挂）——
     if partner and (inventory.partner_company or "").strip() != partner:
         inventory.partner_company = partner
 
@@ -700,6 +711,13 @@ def _update_existing_stop_inventory(
     if plate and (inventory.vehicle_no or "").strip() != plate:
         inventory.vehicle_no = plate
 
+    new_product_id = (product.product_id or "").strip()
+    if new_product_id:
+        snapshot = resolve_crm_product(
+            db, tenant_no, new_product_id, require_on_shelf=False
+        )
+        apply_product_snapshot_to_inventory(inventory, snapshot)
+
     new_qty = float(product.quantity)
     old_qty = _resolve_link_contributed_qty(link, inventory)
     if abs(new_qty - old_qty) > 1e-9:
@@ -759,6 +777,8 @@ def _update_existing_stop_inventory(
     inventory.update_by = user_id
     link.update_by = user_id
 
+    _sync_weighing_slip_business_fields(db, inventory=inventory, user_id=user_id)
+
     return DibangInventoryLinkResult(
         plan_product_id=product.plan_product_id,
         product_name=product.product_name or "",