models.py

from database import db
from flask_login import UserMixin
from datetime import datetime

class User(UserMixin, db.Model):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(80), unique=True, nullable=False)
    password = db.Column(db.String(120), nullable=False)

class DiaryEntry(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
    content = db.Column(db.Text, nullable=False)
    mood = db.Column(db.String(50), nullable=False)
    sentiment = db.Column(db.Float, nullable=True)
    date = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
    user = db.relationship('User', backref=db.backref('entries', lazy=True))

class Task(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
    title = db.Column(db.String(100), nullable=False)
    description = db.Column(db.Text, nullable=True)
    due_date = db.Column(db.Date, nullable=False)
    completed = db.Column(db.Boolean, default=False)
    user = db.relationship('User', backref=db.backref('tasks', lazy=True))