28 lines
780 B
Python
28 lines
780 B
Python
from sqlalchemy import Column, Integer, ForeignKey
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from .devices import entity_types_registry
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from .sensors import NumericSensor
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if not entity_types_registry.get('LinkQuality'):
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class LinkQuality(NumericSensor):
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__tablename__ = 'link_quality'
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def __init__(
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self, *args, unit: str = '%', min: float = 0, max: float = 100, **kwargs
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):
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super().__init__(*args, min=min, max=max, unit=unit, **kwargs)
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id = Column(
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Integer, ForeignKey(NumericSensor.id, ondelete='CASCADE'), primary_key=True
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)
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__mapper_args__ = {
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'polymorphic_identity': __tablename__,
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}
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entity_types_registry['LinkQuality'] = LinkQuality
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else:
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LinkQuality = entity_types_registry['LinkQuality']
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