18 lines
669 B
Python
18 lines
669 B
Python
from sqlalchemy import Column, Float, ForeignKey, String, UniqueConstraint
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from app import db
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class LabComponentNutrientValue(db.Model):
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"""Полная матрица показателей zootech «База сырья» (EAV, server-only)."""
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__tablename__ = "lab_component_nutrient_value"
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__table_args__ = (
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UniqueConstraint("component_id", "nutrient_key", name="uq_lab_comp_nutrient"),
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)
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id = Column(String(36), primary_key=True)
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component_id = Column(String(36), ForeignKey("component.id"), nullable=False, index=True)
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nutrient_key = Column(String(80), nullable=False, index=True)
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value = Column(Float, nullable=True)
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