forked from platypush/platypush
25 lines
590 B
Python
25 lines
590 B
Python
from sqlalchemy import Column, Integer, ForeignKey
|
|
|
|
from platypush.common.db import Base
|
|
|
|
from .three_axis import ThreeAxisSensor
|
|
|
|
|
|
if 'accelerometer' not in Base.metadata:
|
|
|
|
class Accelerometer(ThreeAxisSensor):
|
|
"""
|
|
An entity that represents the value of an accelerometer sensor.
|
|
"""
|
|
|
|
__tablename__ = 'accelerometer'
|
|
|
|
id = Column(
|
|
Integer,
|
|
ForeignKey(ThreeAxisSensor.id, ondelete='CASCADE'),
|
|
primary_key=True,
|
|
)
|
|
|
|
__mapper_args__ = {
|
|
'polymorphic_identity': __tablename__,
|
|
}
|