agreg-server/server/backend/adapters/postgres/device_repository.py

import logging

import psycopg2

from ports import DeviceRepository
from domain.exceptions import DatabaseError
from infrastructure.db import get_conn

log = logging.getLogger(__name__)


class PgDeviceRepository(DeviceRepository):
    def get_or_create_device_id(self, dev_eui: str) -> str:
        try:
            with get_conn() as conn:
                with conn.cursor() as cur:
                    cur.execute(
                        """
                        INSERT INTO device (device_eui)
                        VALUES (%s)
                        ON CONFLICT (device_eui) DO NOTHING
                    """,
                        (dev_eui,),
                    )
                    cur.execute(
                        "SELECT device_id FROM device WHERE device_eui = %s", (dev_eui,)
                    )
                    return str(cur.fetchone()[0])  # type: ignore
        except psycopg2.DatabaseError as e:
            raise DatabaseError(f"Erreur de création du device {dev_eui}") from e