29 lines
1.4 KiB
Python
29 lines
1.4 KiB
Python
from sqlalchemy import Boolean, Float, Integer, String, Text, func
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from sqlalchemy.dialects.postgresql import JSONB
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from sqlalchemy.orm import Mapped, mapped_column
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from datetime import datetime
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from app.database import Base
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class Material(Base):
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__tablename__ = "materials"
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id: Mapped[int] = mapped_column(Integer, primary_key=True)
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name: Mapped[str] = mapped_column(String(100), nullable=False)
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category: Mapped[str] = mapped_column(String(50), nullable=False)
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density_g_cm3: Mapped[float] = mapped_column(Float, nullable=False)
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price_per_gram: Mapped[float] = mapped_column(Float, nullable=False)
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flow_rate_mm3_s: Mapped[float] = mapped_column(Float, nullable=False)
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max_temp_c: Mapped[int | None] = mapped_column(Integer)
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min_temp_c: Mapped[int | None] = mapped_column(Integer)
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strength: Mapped[str | None] = mapped_column(String(20))
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flexibility: Mapped[str | None] = mapped_column(String(20))
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chemical_resistance: Mapped[str | None] = mapped_column(String(20))
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uv_resistance: Mapped[str | None] = mapped_column(String(20))
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food_safe: Mapped[bool] = mapped_column(Boolean, default=False)
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description: Mapped[str | None] = mapped_column(Text)
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color_options: Mapped[dict] = mapped_column(JSONB, default=list)
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is_active: Mapped[bool] = mapped_column(Boolean, default=True)
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created_at: Mapped[datetime] = mapped_column(default=func.now())
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