meal_homework/mealapi/resources/mealindividualresource.py

#!/usr/bin/env python3
from flask_restful import Resource
from flask import request, abort
from marshmallow import ValidationError

from model import db, Meal
from schemas import MealSchema


class MealIndividualResource(Resource):

    mealschema = MealSchema(many=False)

    def put(self, mealid):
        body = request.get_json()

        try:
            self.mealschema.load(body, instance=Meal.query.get(mealid).first_or_404())
            db.session.commit()
            return '', 200
        except ValidationError as error:
            abort(406, error.messages)

    def get(self, mealid):
        meal = Meal.query.filter_by(id=mealid).first_or_404()
        return self.mealschema.dump(meal), 200

    def delete(self, mealid):
        meal = Meal.query.filter_by(id=mealid).first_or_404()
        db.session.delete(meal)
        db.session.commit()
        return self.mealschema.dump(meal), 200