46 lines
1.5 KiB
Python
46 lines
1.5 KiB
Python
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from sqlalchemy import Column, String, Text, Integer, ForeignKey, DateTime, Enum
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from sqlalchemy.orm import relationship
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from datetime import datetime
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from enum import Enum as PyEnum
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from app.models.base import BaseModel
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class TaskStatus(str, PyEnum):
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TODO = "todo"
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IN_PROGRESS = "in_progress"
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DONE = "done"
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CANCELLED = "cancelled"
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class TaskPriority(str, PyEnum):
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LOW = "low"
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MEDIUM = "medium"
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HIGH = "high"
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URGENT = "urgent"
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class Task(BaseModel):
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__tablename__ = "tasks"
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user_id = Column(String(36), ForeignKey("users.id"), nullable=False, index=True)
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title = Column(String(500), nullable=False)
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description = Column(Text, nullable=True)
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status = Column(Enum(TaskStatus), default=TaskStatus.TODO, nullable=False, index=True)
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priority = Column(Enum(TaskPriority), default=TaskPriority.MEDIUM, nullable=False)
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due_date = Column(DateTime, nullable=True)
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completed_at = Column(DateTime, nullable=True)
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tags = Column(String(1000), nullable=True) # JSON 数组
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history = relationship("TaskHistory", back_populates="task", cascade="all, delete-orphan")
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class TaskHistory(BaseModel):
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__tablename__ = "task_histories"
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task_id = Column(String(36), ForeignKey("tasks.id"), nullable=False, index=True)
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action = Column(String(100), nullable=False) # created, status_changed, updated, deleted
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old_value = Column(Text, nullable=True)
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new_value = Column(Text, nullable=True)
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task = relationship("Task", back_populates="history")
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