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87 lines
2.7 KiB
Python
87 lines
2.7 KiB
Python
#
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# Copyright (c) 2021-2024 ahriman team.
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#
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# This file is part of ahriman
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# (see https://github.com/arcan1s/ahriman).
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import sqlite3
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from collections.abc import Callable
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from pathlib import Path
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from typing import Any, TypeVar
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from ahriman.core.log import LazyLogging
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from ahriman.models.repository_id import RepositoryId
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from ahriman.models.repository_paths import RepositoryPaths
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T = TypeVar("T")
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class Operations(LazyLogging):
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"""
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base operation class
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Attributes:
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path(Path): path to the database file
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"""
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def __init__(self, path: Path, repository_id: RepositoryId, repository_paths: RepositoryPaths) -> None:
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"""
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default constructor
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Args:
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path(Path): path to the database file
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repository_id(RepositoryId): repository unique identifier
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"""
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self.path = path
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self._repository_id = repository_id
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self._repository_paths = repository_paths
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@staticmethod
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def factory(cursor: sqlite3.Cursor, row: tuple[Any, ...]) -> dict[str, Any]:
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"""
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dictionary factory based on official documentation
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Args:
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cursor(Cursor): cursor descriptor
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row(tuple[Any, ...]): fetched row
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Returns:
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dict[str, Any]: row converted to dictionary
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"""
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result = {}
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for index, column in enumerate(cursor.description):
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result[column[0]] = row[index]
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return result
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def with_connection(self, query: Callable[[sqlite3.Connection], T], *, commit: bool = False) -> T:
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"""
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perform operation in connection
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Args:
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query(Callable[[Connection], T]): function to be called with connection
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commit(bool, optional): if True commit() will be called on success (Default value = False)
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Returns:
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T: result of the ``query`` call
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"""
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with sqlite3.connect(self.path, detect_types=sqlite3.PARSE_DECLTYPES) as connection:
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connection.row_factory = self.factory
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result = query(connection)
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if commit:
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connection.commit()
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return result
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