Files
romm/backend/handler/db_handler/db_roms_handler.py
2024-01-17 01:43:16 +01:00

97 lines
2.9 KiB
Python

from decorators.database import begin_session
from handler.db_handler import DBHandler
from models import Rom
from sqlalchemy import and_, delete, func, select, update
from sqlalchemy.orm import Session
class DBRomsHandler(DBHandler):
@staticmethod
def _filter(data, platform_id, search_term):
if platform_id:
data = data.filter_by(platform_id=platform_id)
if search_term:
data = data.filter(Rom.file_name.ilike(f"%{search_term}%"))
return data
@staticmethod
def _order(data, order_by, order_dir):
if order_by == "name":
_column = func.lower(Rom.name)
elif order_by == "id":
_column = Rom.id
else:
_column = func.lower(Rom.name)
if order_dir == "asc":
return data.order_by(_column.asc())
elif order_dir == "desc":
return data.order_by(_column.desc())
else:
return data.order_by(_column.asc())
@begin_session
def add_rom(self, rom: Rom, session: Session = None):
return session.merge(rom)
@begin_session
def get_roms(
self,
id: int = None,
platform_id: int = None,
search_term: str = "",
order_by: str = "name",
order_dir: str = "asc",
session: Session = None,
):
return (
session.get(Rom, id)
if id
else self._order(
self._filter(select(Rom), platform_id, search_term),
order_by,
order_dir,
)
)
@begin_session
def get_rom_by_filename(
self, platform_id: int, file_name: str, session: Session = None
):
return session.scalars(
select(Rom).filter_by(platform_id=platform_id, file_name=file_name).limit(1)
).first()
@begin_session
def get_rom_by_filename_no_tags(
self, file_name_no_tags: str, session: Session = None
):
return session.scalars(
select(Rom).filter_by(file_name_no_tags=file_name_no_tags).limit(1)
).first()
@begin_session
def update_rom(self, id: int, data: dict, session: Session = None):
return session.execute(
update(Rom)
.where(Rom.id == id)
.values(**data)
.execution_options(synchronize_session="evaluate")
)
@begin_session
def delete_rom(self, id: int, session: Session = None):
return session.execute(
delete(Rom)
.where(Rom.id == id)
.execution_options(synchronize_session="evaluate")
)
@begin_session
def purge_roms(self, platform_id: int, roms: list[str], session: Session = None):
return session.execute(
delete(Rom)
.where(and_(Rom.platform_id == platform_id, Rom.file_name.not_in(roms)))
.execution_options(synchronize_session="evaluate")
)