Большие изменения с добавленем Alembic

backend-app/core/models/__init__.py

@@ -0,0 +1,7 @@
+__all__ = (
+    "db_helper",
+    "Base"
+)
+from .db_helper import db_helper
+from .base import Base
+from repo.models import LoginModel, UserModel

backend-app/core/models/base.py

@@ -0,0 +1,5 @@
+from sqlalchemy.orm import DeclarativeBase
+
+class Base(DeclarativeBase):
+    pass
+

backend-app/core/models/db_helper.py

@@ -0,0 +1,41 @@
+from sqlalchemy.ext.asyncio import create_async_engine, AsyncEngine, async_sessionmaker, AsyncSession
+from typing import AsyncGenerator
+from core.settings import settings
+class DatabaseHelper:
+    def __init__(
+            self,
+            url: str,
+            echo:bool=False,
+            echo_pool:bool=False,
+            pool_size: int = 5,
+            max_overflow: int =10,
+    ) -> None:
+        self.engine: AsyncEngine = create_async_engine(
+            url=url,
+            echo=echo,
+            echo_pool=echo_pool,
+            pool_size=pool_size,
+            max_overflow = max_overflow
+        )
+        self.session_factory: async_sessionmaker[AsyncSession] = async_sessionmaker(
+            bind= self.engine,
+            autoflush=False,
+            autocommit=False,
+            expire_on_commit=False
+        )
+
+    async def dispose(self) -> None:
+        await self.engine.dispose()
+    
+    async def session_getter(self) -> AsyncGenerator[AsyncSession,None]:
+        async with self.session_factory() as session:
+            yield session
+        
+db_helper = DatabaseHelper(
+    url = settings.db.url,
+    echo = settings.db.echo,
+    echo_pool = settings.db.echo_pool,
+    pool_size = settings.db.pool_size,
+    max_overflow = settings.db.max_overflow,
+
+)