<reponame>Real-Music/flaskblog<filename>flaskblog/models.py
from datetime import datetime
from flaskblog import db, login_manager
from flask_login import UserMixin
from flask import current_app
from itsdangerous import TimedJSONWebSignatureSerializer as Serialize


# For Login_Manager
@login_manager.user_loader
def load_user(user_id):
    return User.query.get(int(user_id))


# User Model
class User(db.Model, UserMixin):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(20), unique=True, nullable=False)
    email = db.Column(db.String(120), unique=True, nullable=False)
    image_file = db.Column(db.String(120), nullable=False,
                           default='default.png')
    password = db.Column(db.String(60), nullable=False)
    post = db.relationship('Post', backref='author', lazy=True)  # one-to-many

    # Token Generator
    def get_reset_token(self, expires_sec=1800):
        s = Serialize(current_app.config['SECRET_KEY'], expires_sec)
        return s.dumps({'user_id': self.id}).decode('utf-8')

    # Verify token
    @staticmethod
    def verify_reset_token(token):
        s = Serialize(current_app.config['SECRET_KEY'])
        # we could have errors when token expire so we use try
        try:
            user_id = s.loads(token)['user_id']
        except:
            return None
        return User.query.get(user_id)

    # how object are printed out when we print them
    def __repr__(self):
        return f'User("{self.username}","{self.email}","{self.image_file}")'


# Post Model
class Post(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String(100), nullable=False)
    date_post = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
    content = db.Column(db.Text, nullable=False)
    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)

    def __repr__(self):
        return f'Post("{self.title}","{self.date_post}")'

from datetime import datetime
from flaskblog import db, login_manager
from flask_login import UserMixin
from flask import current_app
from itsdangerous import TimedJSONWebSignatureSerializer as Serialize


# For Login_Manager
@login_manager.user_loader
def load_user(user_id):
    return User.query.get(int(user_id))


# User Model
class User(db.Model, UserMixin):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(20), unique=True, nullable=False)
    email = db.Column(db.String(120), unique=True, nullable=False)
    image_file = db.Column(db.String(120), nullable=False,
                           default='default.png')
    password = db.Column(db.String(60), nullable=False)
    post = db.relationship('Post', backref='author', lazy=True)  # one-to-many

    # Token Generator
    def get_reset_token(self, expires_sec=1800):
        s = Serialize(current_app.config['SECRET_KEY'], expires_sec)
        return s.dumps({'user_id': self.id}).decode('utf-8')

    # Verify token
    @staticmethod
    def verify_reset_token(token):
        s = Serialize(current_app.config['SECRET_KEY'])
        # we could have errors when token expire so we use try
        try:
            user_id = s.loads(token)['user_id']
        except:
            return None
        return User.query.get(user_id)

    # how object are printed out when we print them
    def __repr__(self):
        return f'User("{self.username}","{self.email}","{self.image_file}")'


# Post Model
class Post(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String(100), nullable=False)
    date_post = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
    content = db.Column(db.Text, nullable=False)
    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)

    def __repr__(self):
        return f'Post("{self.title}","{self.date_post}")'
# For Login_Manager # User Model # one-to-many # Token Generator # Verify token # we could have errors when token expire so we use try # how object are printed out when we print them # Post Model