38 lines
1.7 KiB
Python
38 lines
1.7 KiB
Python
from sqlalchemy import Column, Integer, String, Float, DateTime, ForeignKey
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from sqlalchemy.sql import func
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from .database import Base
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class Drug(Base):
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__tablename__ = "drugs"
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id = Column(Integer, primary_key=True, index=True)
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name = Column(String, unique=True, index=True, nullable=False)
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description = Column(String, nullable=True)
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created_at = Column(DateTime(timezone=True), server_default=func.now())
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updated_at = Column(DateTime(timezone=True), onupdate=func.now(), server_default=func.now())
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class DrugVariant(Base):
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__tablename__ = "drug_variants"
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id = Column(Integer, primary_key=True, index=True)
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drug_id = Column(Integer, ForeignKey("drugs.id"), nullable=False)
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strength = Column(String, nullable=False) # e.g., "5.4mg", "16mg", "100ml"
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quantity = Column(Float, nullable=False, default=0)
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unit = Column(String, nullable=False, default="units") # tablets, bottles, ml, etc
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low_stock_threshold = Column(Float, nullable=False, default=10)
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created_at = Column(DateTime(timezone=True), server_default=func.now())
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updated_at = Column(DateTime(timezone=True), onupdate=func.now(), server_default=func.now())
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class Dispensing(Base):
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__tablename__ = "dispensings"
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id = Column(Integer, primary_key=True, index=True)
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drug_variant_id = Column(Integer, ForeignKey("drug_variants.id"), nullable=False)
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quantity = Column(Float, nullable=False)
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animal_name = Column(String, nullable=False) # Name/ID of the animal
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user_name = Column(String, nullable=False) # User who dispensed
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dispensed_at = Column(DateTime(timezone=True), server_default=func.now(), index=True)
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notes = Column(String, nullable=True)
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