rommapp_romm/backend/handler/database/states_handler.py
2025-09-04 11:17:00 -03:00

99 lines
2.9 KiB
Python

from collections.abc import Sequence
from sqlalchemy import and_, delete, select, update
from sqlalchemy.orm import Session
from decorators.database import begin_session
from models.assets import State
from .base_handler import DBBaseHandler
class DBStatesHandler(DBBaseHandler):
@begin_session
def add_state(self, state: State, session: Session = None) -> State:
return session.merge(state)
@begin_session
def get_state(self, user_id: int, id: int, session: Session = None) -> State | None:
return session.scalar(select(State).filter_by(user_id=user_id, id=id).limit(1))
@begin_session
def get_state_by_filename(
self, user_id: int, rom_id: int, file_name: str, session: Session = None
) -> State | None:
return session.scalar(
select(State)
.filter_by(rom_id=rom_id, user_id=user_id, file_name=file_name)
.limit(1)
)
@begin_session
def get_states(
self,
user_id: int,
rom_id: int | None = None,
platform_id: int | None = None,
session: Session = None,
) -> Sequence[State]:
query = select(State).filter_by(user_id=user_id)
if rom_id:
query = query.filter_by(rom_id=rom_id)
if platform_id:
query = query.filter_by(platform_id=platform_id)
return session.scalars(query).all()
@begin_session
def update_state(self, id: int, data: dict, session: Session = None) -> State:
session.execute(
update(State)
.where(State.id == id)
.values(**data)
.execution_options(synchronize_session="evaluate")
)
return session.query(State).filter_by(id=id).one()
@begin_session
def delete_state(self, id: int, session: Session = None) -> None:
session.execute(
delete(State)
.where(State.id == id)
.execution_options(synchronize_session="evaluate")
)
@begin_session
def mark_missing_states(
self,
rom_id: int,
user_id: int,
states_to_keep: list[str],
session: Session = None,
) -> Sequence[State]:
missing_states = session.scalars(
select(State).filter(
and_(
State.rom_id == rom_id,
State.user_id == user_id,
State.file_name.not_in(states_to_keep),
)
)
).all()
session.execute(
update(State)
.where(
and_(
State.rom_id == rom_id,
State.user_id == user_id,
State.file_name.not_in(states_to_keep),
)
)
.values(**{"missing_from_fs": True})
.execution_options(synchronize_session="evaluate")
)
return missing_states