51 lines
1.6 KiB
Python
51 lines
1.6 KiB
Python
import os
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import psycopg2
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from psycopg2.extras import RealDictCursor
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from psycopg2.extras import execute_batch
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from server.exceptions import DatabaseNotConfiguredException
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class PostgresConnector:
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"""
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Simple PostgreSQL connector (single connection).
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"""
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def __init__(self):
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try:
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self.connection = psycopg2.connect(
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host=os.getenv("POSTGRES_HOST", "localhost"),
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port=os.getenv("POSTGRES_PORT", 5432),
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user=os.getenv("POSTGRES_USER", "postgres"),
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password=os.getenv("POSTGRES_PASSWORD", "postgres"),
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database=os.getenv("POSTGRES_DB", "postgres"),
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)
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except psycopg2.OperationalError as e:
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raise DatabaseNotConfiguredException(f"Ensure database is up and running: {e}")
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self.connection.autocommit = False
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def execute(self, query, params=None, fetch=False) -> list:
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try:
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with self.connection.cursor(cursor_factory=RealDictCursor) as cursor:
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cursor.execute(query, params)
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result = cursor.fetchall() if fetch else None
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self.connection.commit()
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return result
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except Exception:
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self.connection.rollback()
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raise
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def execute_batch(self, query, values):
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try:
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with self.connection.cursor(cursor_factory=RealDictCursor) as cursor:
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execute_batch(cursor, query, values)
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self.connection.commit()
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except Exception:
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self.connection.rollback()
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raise
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def close(self):
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if self.connection:
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self.connection.close() |