File size: 3,181 Bytes
0cd8655 356ae73 0cd8655 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 | import os
from sqlalchemy import create_engine, text
from sqlalchemy.orm import sessionmaker
DB_PATH = os.path.join(os.path.dirname(__file__), "hvac_supervisory.db")
DATABASE_URL = os.getenv("DATABASE_URL") or os.getenv("HVAC_DATABASE_URL") or f"sqlite:///{DB_PATH}"
_connect_args = {"check_same_thread": False} if DATABASE_URL.startswith("sqlite") else {}
_engine_kwargs: dict = {"connect_args": _connect_args, "pool_pre_ping": True}
if not DATABASE_URL.startswith("sqlite"):
_engine_kwargs.update(
pool_size=int(os.getenv("HVAC_DB_POOL_SIZE", "10")),
max_overflow=int(os.getenv("HVAC_DB_MAX_OVERFLOW", "20")),
pool_recycle=int(os.getenv("HVAC_DB_POOL_RECYCLE", "1800")),
)
engine = create_engine(DATABASE_URL, **_engine_kwargs)
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
def _allow_create_all() -> bool:
explicit = os.environ.get("HVAC_ALLOW_CREATE_ALL")
if explicit is not None:
return explicit.lower() in ("1", "true", "yes")
return os.getenv("HVAC_ENV", "development").lower() != "production"
def _run_alembic() -> None:
try:
from alembic.config import Config
from alembic import command
root = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
cfg = Config(os.path.join(root, "alembic.ini"))
cfg.set_main_option("script_location", os.path.join(root, "alembic"))
cfg.set_main_option("sqlalchemy.url", DATABASE_URL)
command.upgrade(cfg, "head")
except Exception as exc:
print(f"[alembic] upgrade skipped or failed: {exc}")
def init_db():
from database.models import Base
try:
import database.models_o1 # noqa: F401
except Exception:
pass
try:
import database.models_ml # noqa: F401
except Exception:
pass
_run_alembic()
if _allow_create_all():
Base.metadata.create_all(bind=engine)
try:
from backend.services.o1_telemetry_service import ensure_point_map_and_config
ensure_point_map_and_config()
except Exception as exc:
print(f"[o1] point map init skipped: {exc}")
def get_db():
db = SessionLocal()
try:
yield db
finally:
db.close()
def database_ok() -> bool:
try:
with engine.connect() as conn:
conn.execute(text("SELECT 1"))
return True
except Exception:
return False
def alembic_head_ok() -> bool:
try:
from alembic.config import Config
from alembic.script import ScriptDirectory
from alembic.runtime.migration import MigrationContext
root = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
cfg = Config(os.path.join(root, "alembic.ini"))
cfg.set_main_option("script_location", os.path.join(root, "alembic"))
script = ScriptDirectory.from_config(cfg)
heads = set(script.get_heads())
with engine.connect() as conn:
context = MigrationContext.configure(conn)
current = set(context.get_current_heads())
return bool(current) and current.issubset(heads)
except Exception:
return True
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