class Post(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(100), nullable=False)
date_posted = 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_posted}')"
class Tag(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(20), nullable=False)
@classmethod
def get_or_create(cls, name):
"""Only add tags to the database that don't exist yet. If tag already
exists return a reference to the tag otherwise a new instance"""
tag = cls.query.filter(cls.name == name).first()
if not tag:
tag = cls(name)
return tag
def __init__(self, name):
self.name = name
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(20), nullable=False, default='default.jpg')
password = db.Column(db.String(60), nullable=False)
posts = db.relationship("Post", backref='author', lazy=True)
def get_reset_token(self, expires_sec=1800):
s = Serializer(current_app.config['SECRET_KEY'], expires_sec)
return s.dumps({'user_id': self.id}).decode('utf-8')
@staticmethod
def verify_reset_token(token):
s = Serializer(current_app.config['SECRET_KEY'])
try:
user_id = s.loads(token)['user_id']
except:
return None
return User.query.get(user_id)
def __repr__(self):
return f"User('{self.username}', '{self.email}', '{self.image_file}')"
class Recipe(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(30), nullable=False)
description = db.Column(db.Text, nullable=False, default='No description')
image_file = db.Column(db.String(30), nullable=False, default='default.jpg')
ingredients = db.Column(db.Text, nullable=False)
directions = db.Column(db.Text, nullable=False)
source = db.Column(db.String(20), nullable=True)
url = db.Column(db.Text, nullable=True)
notes = db.Column(db.Text, nullable=True)
_tags = db.relationship('Tag', secondary=recipe_tags, lazy='subquery', backref=db.backref('recipes', lazy=True))
# Help from https://github.com/eugenkiss/Simblin for getting tags into the db
def _set_tags(self, taglist):
# Remove all previous tags
self._tags = []
for tag_name in taglist:
self._tags.append(Tag.get_or_create(tag_name))
def _get_tags(self):
return self._tags
tags = db.synonym("_tags", descriptor=property(_get_tags, _set_tags))
class Post(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(100), nullable=False)
date_posted = 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_posted}')"
# https://overiq.com/flask-101/database-modelling-in-flask/ <- info on implementing relationships in databases
recipe_tags = db.Table('recipe_tags',
db.Column('tag_id', db.Integer, db.ForeignKey('tag.id'), primary_key=True),
db.Column('recipe_id', db.Integer, db.ForeignKey('recipe.id'), primary_key=True)
)
class Recipe(db.Model):
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(30), nullable=False)
description = db.Column(db.Text, nullable=False, default='No description')
image_file = db.Column(db.String(30), nullable=False, default='default.jpg')
ingredients = db.Column(db.Text, nullable=False)
directions = db.Column(db.Text, nullable=False)
source = db.Column(db.String(20), nullable=True)
url = db.Column(db.Text, nullable=True)
notes = db.Column(db.Text, nullable=True)
_tags = db.relationship('Tag', secondary=recipe_tags, lazy='subquery', backref=db.backref('recipes', lazy=True))