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Delete utils/database/connection.py
Browse files- utils/database/connection.py +0 -58
utils/database/connection.py
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# filename: database/connection.py
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import logging
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from motor.motor_asyncio import AsyncIOMotorClient
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import config
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logger = logging.getLogger(__name__)
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class Database:
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"""
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Manages connections to one or more MongoDB databases.
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"""
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def __init__(self, uris: list[str]):
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if not uris:
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raise ValueError("At least one MongoDB URI is required.")
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self.clients = [AsyncIOMotorClient(uri) for uri in uris]
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self.databases = [client.get_default_database() for client in self.clients]
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# For data that should not be split (like cache), we use the first DB as the primary.
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self.primary_db = self.databases[0]
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# For distributing new users, we'll cycle through the available databases.
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self._user_db_round_robin_counter = 0
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logger.info(f"Successfully connected to {len(self.clients)} MongoDB database(s).")
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async def get_user_db(self, user_id: int):
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"""
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Gets the database assigned to a specific user.
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This ensures a user's data always stays in the same database.
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We use a simple hashing method to distribute users.
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"""
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db_index = user_id % len(self.databases)
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return self.databases[db_index]
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async def find_user_db(self, user_id: int):
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"""
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Searches across all databases to find which one contains the user.
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Returns the database object if found, otherwise None.
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"""
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for db in self.databases:
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if await db.users.find_one({"user_id": user_id}):
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return db
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return None
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def get_next_db_for_new_user(self):
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"""
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Picks a database for a new user using a round-robin strategy.
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This helps distribute new users evenly.
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"""
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db = self.databases[self._user_db_round_robin_counter]
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self._user_db_round_robin_counter = (self._user_db_round_robin_counter + 1) % len(self.databases)
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return db
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# --- Initialize the Database Connection ---
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# This single `db` object will be imported and used by the rest of the application.
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db = Database(config.MONGODB_URIS)
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