python - How to set tables relatinonship properly on flask-SQLAlchemy?

Question

Recentely I'm trying to making a flask-Sqlalchemy to calculate the total ammount of calories per day. Everithing is working without errors but I got some issue with the tables relationship in the database, so in a nutshell the main problem is that everything I try to save for one user is also available for others.

Can somebody help me to set the tables properly?

Here my models:

from .extensions import db
from flask_login import UserMixin
from datetime import datetime


log_food = db.Table('log_food',
    db.Column('log_id', db.Integer, db.ForeignKey('log.id'), primary_key=True),
    db.Column('food_id', db.Integer, db.ForeignKey('food.id'), primary_key=True),
    db.Column('quantity', db.Integer, default=1)
) 

class Food(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(50), unique=True, nullable=False)
    proteins = db.Column(db.Integer, nullable=False)
    carbs = db.Column(db.Integer, nullable=False)
    fats = db.Column(db.Integer, nullable=False)
    user_id = db.Column(db.Integer, db.ForeignKey('user.id'))

    @property
    def calories(self):
        return (self.proteins * 4) + (self.carbs * 4) + (self.fats * 9)

class Log(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    date = db.Column(db.Date, nullable=False)
    foods = db.relationship('Food', secondary=log_food, lazy='dynamic')
    user_id = db.Column(db.Integer, db.ForeignKey('user.id'))
    
class User(db.Model, UserMixin):
    id = db.Column(db.Integer, primary_key=True)
    email = db.Column(db.String(100), unique=True)
    password = db.Column(db.String(100))
    name = db.Column(db.String(100))
    foods = db.relationship('Food', backref='log_food', lazy=True)
    logs = db.relationship('Log', backref='log_food', lazy=True)

ps: I'm not a pro.....:)

Answer 1

等待大神解答