Implement user-specific question numbering and update database schema. Added triggers for automatic question numbering and adjustments upon deletion. Enhanced CRUD operations to manage user_question_number effectively.

models/user.py

@@ -0,0 +1,92 @@
+"""
+Модель пользователя
+"""
+import asyncio
+from dataclasses import dataclass
+from datetime import datetime
+from typing import Optional
+
+from config.constants import EMPTY_VALUES
+
+
+def escape_html(text: str) -> str:
+    """Экранирование HTML символов"""
+    if not text:
+        return ""
+    return (text
+            .replace('&', '&')
+            .replace('<', '&lt;')
+            .replace('>', '&gt;')
+            .replace('"', '&quot;')
+            .replace("'", '&#x27;'))
+
+
+@dataclass
+class User:
+    """Модель пользователя бота"""
+    
+    id: Optional[int] = None
+    telegram_id: int = None
+    username: Optional[str] = None
+    first_name: str = ""
+    last_name: Optional[str] = None
+    chat_id: int = None
+    profile_link: str = ""
+    is_active: bool = True
+    is_superuser: bool = False
+    created_at: Optional[datetime] = None
+    updated_at: Optional[datetime] = None
+    banned_until: Optional[datetime] = None
+    ban_reason: Optional[str] = None
+    
+    @property
+    def full_name(self) -> str:
+        """Полное имя пользователя"""
+        parts = []
+        if self.first_name:
+            parts.append(escape_html(self.first_name))
+        if self.last_name:
+            parts.append(escape_html(self.last_name))
+        return ' '.join(parts) if parts else 'Неизвестно'
+    
+    @property
+    def display_name(self) -> str:
+        """Отображаемое имя пользователя"""
+        if self.username:
+            return f"@{escape_html(self.username)}"
+        return escape_html(self.full_name)
+    
+    @property
+    def is_banned(self) -> bool:
+        """Проверка, забанен ли пользователь"""
+        if not self.banned_until:
+            return False
+        return datetime.now() < self.banned_until
+    
+    
+    @classmethod
+    def _parse_datetime(cls, date_str) -> Optional[datetime]:
+        """Безопасный парсинг datetime из строки"""
+        if not date_str or date_str in EMPTY_VALUES:
+            return None
+        try:
+            return datetime.fromisoformat(date_str)
+        except (ValueError, TypeError):
+            return None
+    
+    @classmethod
+    async def _parse_datetime_async(cls, date_str) -> Optional[datetime]:
+        """Асинхронный безопасный парсинг datetime из строки"""
+        if not date_str or date_str in EMPTY_VALUES:
+            return None
+        try:
+            loop = asyncio.get_event_loop()
+            return await loop.run_in_executor(None, datetime.fromisoformat, date_str)
+        except (ValueError, TypeError):
+            return None
+    
+    
+    def update_timestamp(self):
+        """Обновление времени последнего обновления"""
+        self.updated_at = datetime.now()
+