34 lines
941 B
Python
34 lines
941 B
Python
from django.contrib.gis.db.models import Model, CharField, TextField, ForeignKey, DateTimeField, PointField, CASCADE
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# Create your models here.
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class Bus(Model):
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id = CharField(max_length=255, primary_key=True)
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class Status(Model):
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bus = ForeignKey(Bus, on_delete=CASCADE)
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timestamp = DateTimeField()
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class Meta:
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unique_together = [["bus", "timestamp"]]
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class StatusKey(Model):
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key = CharField(max_length=255, primary_key=True)
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class StatusValue(Model):
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key = ForeignKey(StatusKey, on_delete=CASCADE)
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status = ForeignKey(Status, on_delete=CASCADE)
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value = CharField(max_length=255)
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class Meta:
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unique_together = [["key", "status"]]
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class Location(Model):
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bus = ForeignKey(Bus, on_delete=CASCADE)
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status = ForeignKey(Status, on_delete=CASCADE)
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timestamp = DateTimeField()
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location = PointField()
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class Meta:
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unique_together = [["bus", "timestamp"]]
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