kopia lustrzana https://github.com/glidernet/ogn-python
28 wiersze
1.0 KiB
Python
28 wiersze
1.0 KiB
Python
from geoalchemy2.types import Geometry
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from ogn_python import db
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class Flight2D(db.Model):
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__tablename__ = "flights2d"
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date = db.Column(db.Date, primary_key=True)
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flight_type = db.Column(db.SmallInteger, primary_key=True)
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path_wkt = db.Column('path', Geometry('MULTILINESTRING', srid=4326))
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path_simple_wkt = db.Column('path_simple', Geometry('MULTILINESTRING', srid=4326)) # this is the path simplified with ST_Simplify(path, 0.0001)
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# Relations
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device_id = db.Column(db.Integer, db.ForeignKey('devices.id', ondelete='SET NULL'), primary_key=True)
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device = db.relationship('Device', foreign_keys=[device_id], backref='flights2d')
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def __repr__(self):
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return "<Flight %s: %s,%s>" % (
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self.date,
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self.path_wkt,
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self.path_simple_wkt)
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db.Index('ix_flights2d_date_device_id', Flight2D.date, Flight2D.device_id)
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#db.Index('ix_flights2d_date_path', Flight2D.date, Flight2D.path_wkt) --> CREATE INDEX ix_flights2d_date_path ON flights2d USING GIST("date", path)
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