fix: pydantic & sqlalchemy deprecation warnings

src/backend/app/config.py

@@ -20,7 +20,7 @@
 from functools import lru_cache
 from typing import Any, Optional, Union
 
-from pydantic import Extra, FieldValidationInfo, PostgresDsn, field_validator
+from pydantic import FieldValidationInfo, PostgresDsn, field_validator
 from pydantic_settings import BaseSettings, SettingsConfigDict
 
 
@@ -94,7 +94,7 @@ def assemble_db_connection(cls, v: Optional[str], info: FieldValidationInfo) ->
             path=info.data.get("FMTM_DB_NAME", ""),
         )
         # Convert Url type to string
-        return str(pg_url)
+        return pg_url
 
     ODK_CENTRAL_URL: Optional[str] = ""
     ODK_CENTRAL_USER: Optional[str] = ""
@@ -111,7 +111,7 @@ def assemble_db_connection(cls, v: Optional[str], info: FieldValidationInfo) ->
     SENTRY_DSN: Optional[str] = None
 
     model_config = SettingsConfigDict(
-        case_sensitive=True, env_file=".env", extra=Extra.allow
+        case_sensitive=True, env_file=".env", extra="allow"
     )
 
 
@@ -120,7 +120,7 @@ def get_settings():
     """Cache settings when accessed throughout app."""
     _settings = Settings()
     if _settings.DEBUG:
-        print(f"Loaded settings: {_settings.dict()}")
+        print(f"Loaded settings: {_settings.model_dump()}")
     return _settings
 
 

src/backend/app/db/database.py

@@ -19,12 +19,11 @@
 """Config for the FMTM database connection."""
 
 from sqlalchemy import create_engine
-from sqlalchemy.ext.declarative import declarative_base
-from sqlalchemy.orm import sessionmaker
+from sqlalchemy.orm import declarative_base, sessionmaker
 
 from app.config import settings
 
-engine = create_engine(settings.FMTM_DB_URL)
+engine = create_engine(settings.FMTM_DB_URL.unicode_string())
 SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
 
 Base = declarative_base()