39 lines
963 B
Python
39 lines
963 B
Python
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from typing import final
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from tortoise import Model, fields
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@final
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class Teilchen(Model):
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name = fields.TextField()
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description = fields.TextField()
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number = fields.IntField() # validate values >= 0
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created_at = fields.DatetimeField(auto_now_add=True)
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modified_at = fields.DatetimeField(auto_now=True)
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tags = fields.ManyToManyField(
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"models.Tag",
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through="models.TeilchenTag",
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related_name="teilchen",
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forward_key="tag_id",
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backward_key="teilchen_id",
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)
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@final
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class Tag(Model):
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name = fields.CharField(max_length=20)
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created_at = fields.DatetimeField(auto_now_add=True)
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modified_at = fields.DatetimeField(auto_now=True)
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@final
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class TeilchenTag(Model):
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teilchen: fields.ForeignKeyRelation[Teilchen] = fields.ForeignKeyField(
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"models.Teilchen"
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)
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tag: fields.ForeignKeyRelation[Tag] = fields.ForeignKeyField("models.Tag")
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weight = fields.IntField()
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