platypush/platypush/entities/audio.py
Fabio Manganiello d872835093
New API to check if a table class exists before defining it.
- Check if it's part of the metadata through a function call rather than
  checking `Base.metadata` in every single module.

- Make it possible to override them (mostly for doc generation logic
  that needs to be able to import those classes).

- Make it possible to extend them.
2023-10-09 01:33:44 +02:00

36 lines
840 B
Python

from sqlalchemy import Column, Integer, ForeignKey
from platypush.common.db import is_defined
from .dimmers import Dimmer
from .switches import Switch
if not is_defined('volume'):
class Volume(Dimmer):
__tablename__ = 'volume'
id = Column(
Integer, ForeignKey(Dimmer.id, ondelete='CASCADE'), primary_key=True
)
__table_args__ = {'extend_existing': True}
__mapper_args__ = {
'polymorphic_identity': __tablename__,
}
if not is_defined('muted'):
class Muted(Switch):
__tablename__ = 'muted'
id = Column(
Integer, ForeignKey(Switch.id, ondelete='CASCADE'), primary_key=True
)
__table_args__ = {'extend_existing': True}
__mapper_args__ = {
'polymorphic_identity': __tablename__,
}