From 14c70e3c7634b0b28b46f3e3ec31754a41c7c734 Mon Sep 17 00:00:00 2001
From: ZZX9599 <536509593@qq.com>
Date: Wed, 3 Sep 2025 22:06:55 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BA=BA=E8=84=B8?=
MIME-Version: 1.0
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---
 service/face_service.py | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/service/face_service.py b/service/face_service.py
index 8b86042..c554153 100644
--- a/service/face_service.py
+++ b/service/face_service.py
@@ -234,3 +234,36 @@ async def delete_face(
         raise Exception(f"删除人脸记录失败：{str(e)}") from e
     finally:
         db.close_connection(conn, cursor)
+
+
+def get_all_face_name_with_eigenvalue() -> dict:
+    """
+    获取所有人脸的名称及其对应的特征值，组成字典返回
+    key: 人脸名称（name）
+    value: 人脸特征值（eigenvalue）
+    注：过滤掉name为None的记录，避免字典key为None的情况
+    """
+    conn = None
+    cursor = None
+    try:
+        conn = db.get_connection()
+        cursor = conn.cursor(dictionary=True)
+
+        # 只查询需要的字段，提高效率
+        query = "SELECT name, eigenvalue FROM face WHERE name IS NOT NULL"
+        cursor.execute(query)
+        faces = cursor.fetchall()
+
+        # 构建name到eigenvalue的映射字典
+        face_dict = {
+            face["name"]: face["eigenvalue"]
+            for face in faces
+        }
+
+        return face_dict
+
+    except MySQLError as e:
+        raise Exception(f"获取人脸名称与特征值失败：{str(e)}") from e
+    finally:
+        # 确保资源释放
+        db.close_connection(conn, cursor)
\ No newline at end of file