forked from platypush/platypush
Fabio Manganiello
d872835093
- 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.
25 lines
701 B
Python
25 lines
701 B
Python
from sqlalchemy import Column, Integer, ForeignKey
|
|
|
|
from platypush.common.db import is_defined
|
|
|
|
from .sensors import NumericSensor
|
|
|
|
|
|
if not is_defined('link_quality'):
|
|
|
|
class LinkQuality(NumericSensor):
|
|
__tablename__ = 'link_quality'
|
|
|
|
def __init__(
|
|
self, *args, unit: str = '%', min: float = 0, max: float = 100, **kwargs
|
|
):
|
|
super().__init__(*args, min=min, max=max, unit=unit, **kwargs)
|
|
|
|
id = Column(
|
|
Integer, ForeignKey(NumericSensor.id, ondelete='CASCADE'), primary_key=True
|
|
)
|
|
|
|
__table_args__ = {'extend_existing': True}
|
|
__mapper_args__ = {
|
|
'polymorphic_identity': __tablename__,
|
|
}
|