87 lines
No EOL
2.4 KiB
Python
87 lines
No EOL
2.4 KiB
Python
# SPDX-License-Identifier: LGPL-3.0-or-later
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import os
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from pyqt6_scaffold.core.logging import setup_logger
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from pyqt6_scaffold.core.database import AbstractDatabase
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log = setup_logger(__name__)
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class PostgresqlDatabase(AbstractDatabase):
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"""
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AbstractDatabase implementation for PostgreSQL via psycopg2.
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Configuration is read from environment variables:
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PG_HOST, PG_PORT, PG_USER, PG_DATABASE, PG_PASSWORD
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Requires:
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pip install pyqt6-scaffold[postgres]
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"""
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@property
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def placeholder(self) -> str:
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return "%s"
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def _connect(self):
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try:
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import psycopg2 as pg
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except ImportError:
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log.error("Ошибка импорта psycopg2")
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raise
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DB_CONFIG = {
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"host": os.getenv("PG_HOST", "127.0.0.1"),
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"port": int(os.getenv("PG_PORT", 5432)),
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"user": os.getenv("PG_USER", "postgres"),
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"database": os.getenv("PG_DATABASE", "postgres"),
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"password": os.getenv("PG_PASSWORD", "postgres")
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}
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return pg.connect(**DB_CONFIG)
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class MysqlDatabase(AbstractDatabase):
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"""
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AbstractDatabase implementation for MySQL via pymysql.
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Configuration is read from environment variables:
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MYSQL_HOST, MYSQL_PORT, MYSQL_USER, MYSQL_DATABASE, MYSQL_PASSWORD
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Requires:
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pip install pyqt6-scaffold[mysql]
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"""
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@property
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def placeholder(self) -> str:
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return "%s"
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def _connect(self):
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try:
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import pymysql as pms
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except ImportError:
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log.error("Ошибка импорта pymysql")
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raise
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DB_CONFIG = {
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"host": os.getenv("MYSQL_HOST", "localhost"),
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"port": int(os.getenv("MYSQL_PORT", 3306)),
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"user": os.getenv("MYSQL_USER", "root"),
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"database": os.getenv("MYSQL_DATABASE", "root"),
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"password": os.getenv("MYSQL_PASSWORD", "root")
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}
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return pms.connect(**DB_CONFIG)
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class SqliteDatabase(AbstractDatabase):
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"""
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AbstractDatabase implementation for SQLite via the stdlib sqlite3 module.
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Configuration is read from environment variables:
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SQLITE_PATH (default: app.db)
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No additional dependencies required.
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"""
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@property
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def placeholder(self) -> str:
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return "?"
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def _connect(self):
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import sqlite3
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path = os.getenv("SQLITE_PATH", "app.db")
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return sqlite3.connect(path) |