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Guard MySQL size calculation returning None (#73331)

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Paulus Schoutsen 2022-06-10 12:49:58 -07:00 committed by GitHub
parent 2b07082cf6
commit 53b3d2ee87
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1 changed files with 14 additions and 11 deletions
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25
homeassistant/components/recorder/system_health/mysql.py
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@ -5,15 +5,18 @@ from sqlalchemy import text
from sqlalchemy.orm.session import Session from sqlalchemy.orm.session import Session
def db_size_bytes(session: Session, database_name: str) -> float: def db_size_bytes(session: Session, database_name: str) -> float | None:
"""Get the mysql database size.""" """Get the mysql database size."""
return float( size = session.execute(
session.execute( text(
text( "SELECT ROUND(SUM(DATA_LENGTH + INDEX_LENGTH), 2) "
"SELECT ROUND(SUM(DATA_LENGTH + INDEX_LENGTH), 2) " "FROM information_schema.TABLES WHERE "
"FROM information_schema.TABLES WHERE " "TABLE_SCHEMA=:database_name"
"TABLE_SCHEMA=:database_name" ),
), {"database_name": database_name},
{"database_name": database_name}, ).first()[0]
).first()[0]
) if size is None:
return None
return float(size)