42 lines
1.8 KiB
Python
42 lines
1.8 KiB
Python
from sqlalchemy import Column, Integer, String, DateTime, ForeignKey, Numeric, Text
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from sqlalchemy.sql import func
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from sqlalchemy.orm import relationship
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from app.db.base import Base
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class Invoice(Base):
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__tablename__ = "invoices"
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id = Column(Integer, primary_key=True, index=True)
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invoice_number = Column(String, unique=True, nullable=False, index=True)
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issue_date = Column(DateTime(timezone=True), nullable=False)
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due_date = Column(DateTime(timezone=True), nullable=False)
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status = Column(String, default="draft") # draft, sent, paid, overdue
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subtotal = Column(Numeric(10, 2), default=0)
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tax_rate = Column(Numeric(5, 2), default=0)
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tax_amount = Column(Numeric(10, 2), default=0)
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total_amount = Column(Numeric(10, 2), default=0)
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notes = Column(Text, nullable=True)
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user_id = Column(Integer, ForeignKey("users.id"))
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customer_id = Column(Integer, ForeignKey("customers.id"))
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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())
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user = relationship("User", back_populates="invoices")
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customer = relationship("Customer", back_populates="invoices")
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items = relationship("InvoiceItem", back_populates="invoice", cascade="all, delete-orphan")
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class InvoiceItem(Base):
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__tablename__ = "invoice_items"
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id = Column(Integer, primary_key=True, index=True)
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description = Column(String, nullable=False)
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quantity = Column(Numeric(10, 2), nullable=False)
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unit_price = Column(Numeric(10, 2), nullable=False)
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total_price = Column(Numeric(10, 2), nullable=False)
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invoice_id = Column(Integer, ForeignKey("invoices.id"))
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created_at = Column(DateTime(timezone=True), server_default=func.now())
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invoice = relationship("Invoice", back_populates="items") |