mirror of
https://github.com/evraz-hack/backend.git
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96 lines
2.8 KiB
Python
96 lines
2.8 KiB
Python
from django.db import models
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class Record(models.Model):
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received = models.DateTimeField(auto_now_add=True)
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timestamp = models.DateTimeField(blank=False)
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offset = models.IntegerField(unique=True)
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# store message for further usage, e. g. reading logs, etc
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message = models.JSONField(null=True)
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class Meta:
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ordering = ["offset"]
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class RecordApproximation(models.Model):
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class AmountChoices(models.IntegerChoices):
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ten_minutes = 10
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thirty_minutes = 30
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hour = 60
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amount = models.IntegerField(choices=AmountChoices.choices)
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timestamp = models.DateTimeField(blank=False)
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offset = models.IntegerField()
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class Meta:
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unique_together = ["amount", "offset"]
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class ExgausterRecordSignal(models.Model):
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record = models.ForeignKey(
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"analytics.Record", related_name="signals", on_delete=models.CASCADE
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)
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signal = models.ForeignKey(
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"analytics.ExgausterSignal", related_name="records", on_delete=models.CASCADE
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)
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value = models.FloatField()
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class ExgausterRecordApproximationSignal(models.Model):
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record = models.ForeignKey(
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"analytics.RecordApproximation",
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related_name="signals",
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on_delete=models.CASCADE,
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)
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signal = models.ForeignKey(
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"analytics.ExgausterSignal",
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related_name="records_approximate",
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on_delete=models.CASCADE,
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)
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value = models.FloatField()
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class Exgauster(models.Model):
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number = models.IntegerField(unique=True)
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name = models.CharField(max_length=20)
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class ExgausterSignal(models.Model):
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class ExgausterSignalType(models.TextChoices):
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ANALOG = "analog", "ANALOG"
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DIGITAL = "digital", "DIGITAL"
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exgauster = models.ForeignKey(
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"analytics.Exgauster", related_name="signals", on_delete=models.CASCADE
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)
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# store place in x:y way
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place_x = models.IntegerField()
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place_y = models.IntegerField()
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type = models.CharField(
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choices=ExgausterSignalType.choices,
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max_length=7,
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)
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comment = models.CharField(max_length=200, blank=True)
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active = models.BooleanField(default=True)
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# Подшипник1 - Температура нагрева - Температура - temperature
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item = models.CharField(max_length=200, blank=True)
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characteristics = models.CharField(max_length=200, blank=True)
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characteristics_description = models.CharField(max_length=200, blank=True)
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item_name = models.CharField(max_length=200, blank=True)
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config = models.ForeignKey(
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"self", null=True, related_name="installations", on_delete=models.SET_NULL
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)
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@property
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def name(self) -> str:
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return f"SM_Exgauster\\[{self.place_x}{':' if self.type == 'analog' else '.'}{self.place_y}]"
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class Meta:
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unique_together = ["place_x", "place_y", "type"]
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