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Claude Code - Backend Implementation Specialist
Claude Sonnet 4.5
Add complete AI Todo Chatbot backend application
b93a6a5 | from sqlmodel import SQLModel, Field, Relationship | |
| from datetime import datetime | |
| from typing import Optional | |
| class Subtask(SQLModel, table=True): | |
| """Subtask model representing a checklist item within a task.""" | |
| __tablename__ = "subtasks" | |
| id: Optional[int] = Field(default=None, primary_key=True) | |
| task_id: int = Field(foreign_key="tasks.id", index=True) | |
| title: str = Field(max_length=500) | |
| completed: bool = Field(default=False) | |
| order: int = Field(default=0) # For ordering subtasks | |
| created_at: datetime = Field(default_factory=datetime.utcnow) | |
| updated_at: datetime = Field(default_factory=datetime.utcnow) | |
| # Relationships | |
| task: "Task" = Relationship(back_populates="subtasks") | |
| class Config: | |
| json_schema_extra = { | |
| "example": { | |
| "id": 1, | |
| "task_id": 42, | |
| "title": "Review documentation", | |
| "completed": False, | |
| "order": 0, | |
| "created_at": "2026-02-05T10:00:00Z", | |
| "updated_at": "2026-02-05T10:00:00Z" | |
| } | |
| } | |