38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
import logging
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from flask import g, current_app
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from .interface import DatabaseInterface
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logger = logging.getLogger(__name__)
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class FlaskDatabaseManager:
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"""Flask-Integration für Thread-Safe Database Management"""
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def __init__(self, database_factory_func):
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self.database_factory_func = database_factory_func
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def get_db(self) -> DatabaseInterface:
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"""
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Holt die Datenbank-Instanz für den aktuellen Request
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Verwendet Flask's 'g' object für request-lokale Speicherung
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"""
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if 'database' not in g:
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g.database = self.database_factory_func()
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g.database.connect()
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g.database.create_user_table()
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logger.debug("Database instance created for request")
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return g.database
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def close_db(self, error=None):
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"""
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Schließt die Datenbank-Verbindung am Ende des Requests
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"""
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database = g.pop('database', None)
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if database is not None:
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database.disconnect()
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logger.debug("Database connection closed for request")
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def init_app(self, app):
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"""Registriert die Database-Manager-Funktionen bei Flask"""
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app.teardown_appcontext(self.close_db) |