fix

python_core/database/user_postgres.py

@@ -79,15 +79,13 @@ PostgreSQL 驱动 psycopg2 未安装。请安装：
         try:
             with self._get_connection() as conn:
                 with conn.cursor() as cursor:
-                    # 创建用户表（如果不存在）
+                    # 创建用户表（如果不存在）- 不包含新字段
                     create_table_sql = """
                     CREATE TABLE IF NOT EXISTS users (
                         id VARCHAR(36) PRIMARY KEY,
                         username VARCHAR(50) UNIQUE NOT NULL,
                         email VARCHAR(100) UNIQUE NOT NULL,
                         password_hash VARCHAR(64) NOT NULL,
-                        display_name VARCHAR(100) NOT NULL,
-                        avatar_url TEXT DEFAULT '',
                         is_active BOOLEAN DEFAULT TRUE,
                         last_login TIMESTAMP,
                         created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
@@ -96,6 +94,9 @@ PostgreSQL 驱动 psycopg2 未安装。请安装：
                     """
                     cursor.execute(create_table_sql)
 
+                    # 检查并添加缺失的字段
+                    self._migrate_user_table(cursor)
+
                     # 创建索引
                     indexes = [
                         "CREATE INDEX IF NOT EXISTS idx_users_username ON users(username);",
@@ -114,6 +115,56 @@ PostgreSQL 驱动 psycopg2 未安装。请安装：
             logger.error(f"Failed to initialize user table: {e}")
             raise e
 
+    def _migrate_user_table(self, cursor):
+        """
+        迁移用户表结构，添加缺失的字段
+        """
+        try:
+            # 检查 display_name 字段是否存在
+            cursor.execute("""
+                SELECT column_name
+                FROM information_schema.columns
+                WHERE table_name = 'users' AND column_name = 'display_name'
+            """)
+
+            if not cursor.fetchone():
+                logger.info("Adding display_name column to users table")
+                cursor.execute("""
+                    ALTER TABLE users
+                    ADD COLUMN display_name VARCHAR(100) DEFAULT ''
+                """)
+
+                # 为现有用户设置 display_name 为 username
+                cursor.execute("""
+                    UPDATE users
+                    SET display_name = username
+                    WHERE display_name = '' OR display_name IS NULL
+                """)
+
+                # 设置字段为 NOT NULL
+                cursor.execute("""
+                    ALTER TABLE users
+                    ALTER COLUMN display_name SET NOT NULL
+                """)
+
+            # 检查 avatar_url 字段是否存在
+            cursor.execute("""
+                SELECT column_name
+                FROM information_schema.columns
+                WHERE table_name = 'users' AND column_name = 'avatar_url'
+            """)
+
+            if not cursor.fetchone():
+                logger.info("Adding avatar_url column to users table")
+                cursor.execute("""
+                    ALTER TABLE users
+                    ADD COLUMN avatar_url TEXT DEFAULT ''
+                """)
+
+        except Exception as e:
+            logger.error(f"Failed to migrate user table: {e}")
+            raise e
+
     def _hash_password(self, password: str) -> str:
         """密码哈希"""
         return hashlib.sha256(password.encode()).hexdigest()