From 31b723839ed54de35ea528ad85d0df8b2c7850cf Mon Sep 17 00:00:00 2001
From: wc24 <wc24@qq.com>
Date: Wed, 29 Jul 2026 14:56:43 +0800
Subject: [PATCH] =?UTF-8?q?fix(populate):=20=E8=B7=B3=E8=BF=87=E7=A9=BA?=
 =?UTF-8?q?=E4=B8=B2=E5=85=B3=E8=81=94=20id=EF=BC=8C=E9=81=BF=E5=85=8D?=
 =?UTF-8?q?=E5=8F=AF=E9=80=89=20Relation=20=E5=AD=98=20""=20=E6=97=B6=20$i?=
 =?UTF-8?q?n=20=E8=BD=AC=20ObjectId=20=E6=8A=9B=20CastError=20=E6=95=B4?=
 =?UTF-8?q?=E9=A1=B5=20500?=
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bump 0.7.11
---
 package.json                    | 2 +-
 src/forMongo/MongoShrimpCrud.ts | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/package.json b/package.json
index 60db77d..74f8286 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "shrimp-server",
-    "version": "0.7.10",
+    "version": "0.7.11",
     "description": "Shrimp 框架后端 — 声明式字段驱动的 Node.js 管理后台框架(Express + Mongoose + JWT)",
     "main": "dist/main/index.js",
     "types": "dist/main/index.d.ts",
diff --git a/src/forMongo/MongoShrimpCrud.ts b/src/forMongo/MongoShrimpCrud.ts
index cc7ff29..b69d044 100644
--- a/src/forMongo/MongoShrimpCrud.ts
+++ b/src/forMongo/MongoShrimpCrud.ts
@@ -79,9 +79,10 @@ export class MongoShrimpCrud<T> implements ShrimpCrud<T> {
             const allRefIds = new Set<string>()
             for (const item of items) {
                 const val = (item as any)[pop.key]
+                // 跳过空串：可选 Relation 常存 ""，混进 { _id: { $in } } 会让 Mongoose 转 ObjectId 抛 CastError、整页 500。
                 if (Array.isArray(val)) {
-                    val.forEach((id: any) => { if (id != null) allRefIds.add(String(id)) })
-                } else if (val != null) {
+                    val.forEach((id: any) => { if (id != null && id !== "") allRefIds.add(String(id)) })
+                } else if (val != null && val !== "") {
                     allRefIds.add(String(val))
                 }
             }