new database system

config.py

@@ -2,6 +2,7 @@ from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker, DeclarativeBase
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
+from sqlalchemy import Table, Column, Integer, String, Float, Boolean, ForeignKey
 from passlib.context import CryptContext
 from dotenv import load_dotenv
 import os
@@ -29,7 +30,7 @@ class Base(DeclarativeBase):
 #models te içe aktarmayı unutma
 
 def init_db():
-    #Base.metadata.drop_all(engine)   # Veritabanını her başlangıcta siler burayada dikkat !!!!!!!!
+    Base.metadata.drop_all(engine)   # Veritabanını her başlangıcta siler burayada dikkat !!!!!!!!
     Base.metadata.create_all(bind=engine) # Veritabanını oluşturur
 
 # Session dependency (FastAPI için)
@@ -40,6 +41,21 @@ def get_session_db():
     finally:
         db.close()
 
+user_collection = Table(   # user -> collection
+    "user_collection",
+    Base.metadata,
+    Column("user_id", Integer, ForeignKey("users_table.user_id"), primary_key=True),
+    Column("collection_id", Integer, ForeignKey("collections_table.collection_id"), primary_key=True),
+)
+
+
+collection_item = Table(   # collection -> item
+    "collection_item",
+    Base.metadata,
+    Column("collection_id", ForeignKey("collections_table.collection_id"), primary_key=True),
+    Column("item_id", ForeignKey("items_table.item_id"), primary_key=True)
+)
+
 
 
 ### SECRET KEY ###