50 lines
1.3 KiB
Python
50 lines
1.3 KiB
Python
"""固定成本模型
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管理月度固定成本（房租、水电等）及分摊方式
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"""
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from sqlalchemy import String, Boolean, DECIMAL
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from sqlalchemy.orm import Mapped, mapped_column
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from app.models.base import BaseModel
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class FixedCost(BaseModel):
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"""固定成本表"""
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__tablename__ = "fixed_costs"
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cost_name: Mapped[str] = mapped_column(
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String(100),
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nullable=False,
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comment="成本名称"
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)
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cost_type: Mapped[str] = mapped_column(
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String(20),
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nullable=False,
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comment="类型：rent-房租, utilities-水电, property-物业, other-其他"
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)
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monthly_amount: Mapped[float] = mapped_column(
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DECIMAL(12, 2),
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nullable=False,
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comment="月度金额"
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)
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year_month: Mapped[str] = mapped_column(
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String(7),
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nullable=False,
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index=True,
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comment="年月：2026-01"
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)
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allocation_method: Mapped[str] = mapped_column(
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String(20),
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nullable=False,
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default="count",
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comment="分摊方式：count-按项目数, revenue-按营收, duration-按时长"
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)
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is_active: Mapped[bool] = mapped_column(
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Boolean,
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nullable=False,
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default=True,
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comment="是否启用"
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)
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