ogn-python/ogn/model/relation_stats.py

33 wiersze
1.1 KiB
Python

from sqlalchemy import Column, Integer, Date, Float, ForeignKey, Index
from sqlalchemy.orm import relationship
from .base import Base
class RelationStats(Base):
__tablename__ = "relation_stats"
id = Column(Integer, primary_key=True)
date = Column(Date)
# Statistic data
quality = Column(Float(precision=2))
beacon_count = Column(Integer)
# Relations
device_id = Column(Integer, ForeignKey('devices.id', ondelete='SET NULL'), index=True)
device = relationship('Device', foreign_keys=[device_id], backref='relation_stats')
receiver_id = Column(Integer, ForeignKey('receivers.id', ondelete='SET NULL'), index=True)
receiver = relationship('Receiver', foreign_keys=[receiver_id], backref='relation_stats')
def __repr__(self):
return "<RelationStats: %s,%s,%s>" % (
self.date,
self.quality,
self.beacon_count)
Index('ix_relation_stats_date_device_id', RelationStats.date, RelationStats.device_id, RelationStats.receiver_id)
Index('ix_relation_stats_date_receiver_id', RelationStats.date, RelationStats.receiver_id, RelationStats.device_id)