1from os import environ
 2
 3from . import database_url
 4
 5# Make DATABASES a required setting
 6DATABASES: dict
 7
 8# Automatically configure DATABASES if a DATABASE_URL was given in the environment
 9if "DATABASE_URL" in environ:
10    DATABASES = {
11        "default": database_url.parse(
12            environ["DATABASE_URL"],
13            # Enable persistent connections by default
14            conn_max_age=int(environ.get("DATABASE_CONN_MAX_AGE", 600)),
15            conn_health_checks=environ.get(
16                "DATABASE_CONN_HEALTH_CHECKS", "true"
17            ).lower()
18            in [
19                "true",
20                "1",
21            ],
22        )
23    }
24
25# Classes used to implement DB routing behavior.
26DATABASE_ROUTERS = []