remodeling table models and migration to postgres

backend/app/alembic/env.py

@@ -1,18 +1,16 @@
 from logging.config import fileConfig
 
+from app.schemas.models import SQLModel
 from sqlalchemy import engine_from_config
 from sqlalchemy import pool
 
 from alembic import context
-import os
-from dotenv import load_dotenv
-from sqlmodel import SQLModel
-from app.schemas.models import Client, Supplier, Product, Payment, Credit
+from app.core.config import settings
 
-load_dotenv()
 # this is the Alembic Config object, which provides
 # access to the values within the .ini file in use.
 config = context.config
+config.set_main_option('sqlalchemy.url', str(settings.database_uri)) # type: ignore
 
 # Interpret the config file for Python logging.
 # This line sets up loggers basically.
@@ -24,7 +22,6 @@ if config.config_file_name is not None:
 # from myapp import mymodel
 # target_metadata = mymodel.Base.metadata
 target_metadata = SQLModel.metadata
-url = os.getenv("DATABASE_URI")
 
 # other values from the config, defined by the needs of env.py,
 # can be acquired:
@@ -66,7 +63,6 @@ def run_migrations_online() -> None:
     connectable = engine_from_config(
         config.get_section(config.config_ini_section, {}),
         prefix="sqlalchemy.",
-        url=url,
         poolclass=pool.NullPool,
     )