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102 lines
3.3 KiB
Python
102 lines
3.3 KiB
Python
from typing import Any, Sequence
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from decorators.database import begin_session
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from models.collection import Collection, VirtualCollection
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from sqlalchemy import delete, literal, or_, select, update
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from sqlalchemy.orm import Session
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from sqlalchemy.sql import ColumnExpressionArgument
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from utils.database import json_array_contains_value
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from .base_handler import DBBaseHandler
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class DBCollectionsHandler(DBBaseHandler):
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@begin_session
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def add_collection(
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self, collection: Collection, session: Session = None
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) -> Collection:
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collection = session.merge(collection)
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session.flush()
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return session.query(Collection).filter_by(id=collection.id).one()
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@begin_session
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def get_collection(self, id: int, session: Session = None) -> Collection | None:
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return session.scalar(select(Collection).filter_by(id=id).limit(1))
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@begin_session
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def get_virtual_collection(
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self, id: str, session: Session = None
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) -> VirtualCollection | None:
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name, type = VirtualCollection.from_id(id)
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return session.scalar(
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select(VirtualCollection).filter_by(name=name, type=type).limit(1)
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)
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@begin_session
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def get_collection_by_name(
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self, name: str, user_id: int, session: Session = None
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) -> Collection | None:
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return session.scalar(
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select(Collection).filter_by(name=name, user_id=user_id).limit(1)
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)
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@begin_session
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def get_collections(self, session: Session = None) -> Sequence[Collection]:
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return (
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session.scalars(select(Collection).order_by(Collection.name.asc()))
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.unique()
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.all()
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)
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@begin_session
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def get_virtual_collections(
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self, type: str, limit: int | None = None, session: Session = None
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) -> Sequence[VirtualCollection]:
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return (
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session.scalars(
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select(VirtualCollection)
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.filter(or_(VirtualCollection.type == type, literal(type == "all")))
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.limit(limit)
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.order_by(VirtualCollection.name.asc())
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)
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.unique()
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.all()
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)
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@begin_session
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def get_collections_by_rom_id(
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self,
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rom_id: int,
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*,
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order_by: Sequence[str | ColumnExpressionArgument[Any]] | None = None,
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session: Session = None,
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) -> Sequence[Collection]:
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query = select(Collection).filter(
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json_array_contains_value(Collection.rom_ids, rom_id, session=session)
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)
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if order_by is not None:
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query = query.order_by(*order_by)
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return session.scalars(query).all()
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@begin_session
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def update_collection(
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self, id: int, data: dict, session: Session = None
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) -> Collection:
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session.execute(
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update(Collection)
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.where(Collection.id == id)
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.values(**data)
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.execution_options(synchronize_session="evaluate")
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)
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return session.query(Collection).filter_by(id=id).one()
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@begin_session
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def delete_collection(self, id: int, session: Session = None) -> None:
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session.execute(
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delete(Collection)
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.where(Collection.id == id)
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.execution_options(synchronize_session="evaluate")
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)
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