53 lines
2.1 KiB
Python
53 lines
2.1 KiB
Python
from sqlalchemy import Column, Integer, String, ForeignKey, Double, asc
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from sqlalchemy.orm import relationship, mapped_column, Mapped
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import enums.service
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from models import BaseModel
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class Service(BaseModel):
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__tablename__ = 'services'
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id: Mapped[int] = mapped_column(Integer, autoincrement=True, primary_key=True, index=True)
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name = Column(String, nullable=False, comment='Название услуги')
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category_id = Column(Integer, ForeignKey('service_categories.id'), nullable=False, comment='ID категории услуги')
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category = relationship('ServiceCategory', lazy='joined')
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price = Column(
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Double,
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nullable=False,
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comment='Стоимость услуги'
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)
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cost = Column(
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Double,
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nullable=False,
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server_default='0',
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comment='Себестоимость услуги'
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)
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service_type = Column(Integer,
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server_default=f'{enums.service.ServiceType.DEAL_SERVICE}',
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nullable=False,
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comment='Тип услуги')
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price_ranges = relationship('ServicePriceRange',
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back_populates='service',
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lazy='selectin',
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order_by="asc(ServicePriceRange.from_quantity)",
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cascade="all, delete-orphan")
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class ServicePriceRange(BaseModel):
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__tablename__ = 'service_price_ranges'
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id = Column(Integer, autoincrement=True, primary_key=True, index=True)
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service_id = Column(Integer, ForeignKey('services.id'), nullable=False, comment='ID услуги')
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service = relationship('Service', back_populates='price_ranges')
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from_quantity = Column(Integer, nullable=False, comment='От количества')
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to_quantity = Column(Integer, nullable=False, comment='До количества')
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price = Column(Double, nullable=False, comment='Цена')
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class ServiceCategory(BaseModel):
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__tablename__ = 'service_categories'
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id = Column(Integer, autoincrement=True, primary_key=True, index=True)
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name = Column(String, nullable=False)
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