130 lines
3.1 KiB
Python
130 lines
3.1 KiB
Python
from typing import Self
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from fastapi import FastAPI, HTTPException
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from fastapi.middleware.cors import CORSMiddleware
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from pydantic import BaseModel, Field, field_validator, model_validator
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from sqlalchemy import select
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from sqlalchemy.exc import SQLAlchemyError
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from dependencies import SessionDep
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from models import Todo
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app = FastAPI()
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app.add_middleware(
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CORSMiddleware,
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allow_origins=["*"],
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allow_credentials=True,
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allow_methods=["*"],
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allow_headers=["*"],
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)
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class todocreate(BaseModel):
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task: str = Field(min_length=1, max_length=200)
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@field_validator("task")
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@classmethod
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def task_must_not_be_blank(cls, value: str) -> str:
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if not value.strip():
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raise ValueError("task must not be blank")
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return value
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class todoupdate(BaseModel):
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completion: bool | None = None
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task: str | None = Field(
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default=None,
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min_length=1,
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max_length=200,
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)
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@field_validator("task")
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@classmethod
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def task_must_not_be_blank(
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cls,
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value: str | None,
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) -> str | None:
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if value is not None and not value.strip():
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raise ValueError("task must not be blank")
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return value
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@model_validator(mode="after")
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def at_least_one_field_must_be_provided(self) -> Self:
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if self.task is None and self.completion is None:
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raise ValueError(
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"task or completion must be provided"
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)
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return self
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class todoresponse(BaseModel):
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id: int
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task: str
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completion: bool
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@app.get("/health")
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def health():
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return {"status": "ok"}
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@app.get("/todos", response_model=list[todoresponse])
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def todos_get(session: SessionDep):
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statement = select(Todo)
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todos = session.scalars(statement).all()
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return todos
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@app.post("/todos", response_model=todoresponse)
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def todos_create(
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todo_data: todocreate,
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session: SessionDep,
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):
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try:
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new_todo = Todo(task=todo_data.task)
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session.add(new_todo)
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session.commit()
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return new_todo
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except SQLAlchemyError:
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session.rollback()
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raise
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@app.patch("/todos/{todo_id}", response_model=todoresponse)
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def todos_patch(
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todo_id: int,
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update_data: todoupdate,
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session: SessionDep,
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):
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try:
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todo = session.get(Todo, todo_id)
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if todo is None:
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raise HTTPException(status_code=404, detail="Todo not found")
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if update_data.task is not None:
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todo.task = update_data.task
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if update_data.completion is not None:
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todo.completion = update_data.completion
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session.commit()
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return todo
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except SQLAlchemyError:
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session.rollback()
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raise
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@app.delete("/todos/{todo_id}", response_model=todoresponse)
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def todos_delete(
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todo_id: int,
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session: SessionDep,
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):
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try:
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todo = session.get(Todo, todo_id)
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if todo is None:
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raise HTTPException(status_code=404, detail="Todo not found")
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session.delete(todo)
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session.commit()
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return todo
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except SQLAlchemyError:
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session.rollback()
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raise
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