Volledige refactor DAOs #45

backend/app.py

@@ -1,16 +1,55 @@
 import uvicorn
 from fastapi import FastAPI
+from starlette import status
+from starlette.requests import Request
+from starlette.responses import JSONResponse
 
-from routes.projects import projects_router
-from routes.subjects import subjects_router
-from routes.users import users_router
+from db.errors.database_errors import ActionAlreadyPerformedError, ItemNotFoundError
+from routes.errors.authentication import InvalidRoleCredentialsError, StudentNotEnrolledError
+from routes.student import student_router
+from routes.teacher import teacher_router
+from routes.user import users_router
 
 app = FastAPI()
 
 # Koppel routes uit andere modules.
-app.include_router(subjects_router, prefix="/api")
+app.include_router(student_router, prefix="/api")
+app.include_router(teacher_router, prefix="/api")
 app.include_router(users_router, prefix="/api")
-app.include_router(projects_router, prefix="/api")
+
+
+# Koppel de exception handlers
+@app.exception_handler(InvalidRoleCredentialsError)
+def invalid_admin_credentials_error_handler(request: Request, exc: InvalidRoleCredentialsError) -> JSONResponse:
+    return JSONResponse(
+        status_code=status.HTTP_403_FORBIDDEN,
+        content={"message": exc.ERROR_MESSAGE},
+    )
+
+
+@app.exception_handler(ItemNotFoundError)
+def item_not_found_error_handler(request: Request, exc: ItemNotFoundError) -> JSONResponse:
+    return JSONResponse(
+        status_code=status.HTTP_404_NOT_FOUND,
+        content={"detail": str(exc)},
+    )
+
+
+@app.exception_handler(StudentNotEnrolledError)
+def student_already_enrolled_error_handler(request: Request, exc: StudentNotEnrolledError) -> JSONResponse:
+    return JSONResponse(
+        status_code=status.HTTP_400_BAD_REQUEST,
+        content={"detail": str(exc)},
+    )
+
+
+@app.exception_handler(ActionAlreadyPerformedError)
+def action_already_performed_error_handler(request: Request, exc: ActionAlreadyPerformedError) -> JSONResponse:
+    return JSONResponse(
+        status_code=status.HTTP_400_BAD_REQUEST,
+        content={"detail": str(exc)},
+    )
+
 
 if __name__ == "__main__":
     uvicorn.run("app:app")

backend/db/errors/database_errors.py

@@ -4,6 +4,6 @@ def __init__(self, message: str) -> None:
         super().__init__(message)
 
 
-class UniqueConstraintError(Exception):
+class ActionAlreadyPerformedError(Exception):
     def __init__(self, message: str) -> None:
         super().__init__(message)