class Tags(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(100), unique=True, nullable=False)
tag = db.Column(db.String(10), unique=True, nullable=True)
description = db.Column(db.String(250), nullable=False)
posts = db.relationship('Posts',
backref='tag',
lazy=True,
cascade="all, delete",
passive_deletes=True)
tides = db.relationship('Tides',
backref='tag',
lazy=True,
cascade="all, delete",
passive_deletes=True)
comments = db.relationship('Comments',
backref='tag',
lazy=True,
cascade="all, delete",
passive_deletes=True)
replies = db.relationship('Replies',
backref='tag',
lazy=True,
cascade="all, delete",
passive_deletes=True)
class Links(db.Model):
id = db.Column(db.Integer, primary_key=True)
platform = db.Column(db.String(50), nullable=False)
link = db.Column(db.String(50), nullable=False)
post_id = db.Column(db.Integer,
db.ForeignKey('posts.id', ondelete="CASCADE"),
nullable=False)
class Images(db.Model):
id = db.Column(db.Integer, primary_key=True)
stage = db.Column(db.Integer, nullable=False, default=0)
filename = db.Column(db.String(100), default='default.jpg')
post_id = db.Column(db.Integer,
db.ForeignKey('posts.id', ondelete="CASCADE"),
nullable=False)
class Keywords(db.Model):
id = db.Column(db.Integer, primary_key=True)
keyword = db.Column(db.String(50))
posts = db.relationship('KeywordLinks',
backref='keyword',
lazy=True,
cascade="all, delete",
passive_deletes=True)
class Tides(db.Model):
id = db.Column(db.Integer, primary_key=True)
title = db.Column(db.String(250), nullable=False)
content = db.Column(db.Text, nullable=False)
banner_file = db.Column(db.String(100), nullable=True)
date_posted = db.Column(db.DateTime,
nullable=False,
default=datetime.utcnow)
post_id = db.Column(db.Integer,
db.ForeignKey('posts.id', ondelete="CASCADE"),
nullable=False)
stage = db.Column(db.Integer, nullable=False, default=1)
user_id = db.Column(db.Integer,
db.ForeignKey('users.id', ondelete="CASCADE"),
nullable=False)
tag_id = db.Column(db.Integer,
db.ForeignKey('tags.id', ondelete="CASCADE"),
nullable=False,
default=1)
class Notifications(db.Model):
id = db.Column(db.Integer, primary_key=True)
user_id = db.Column(db.Integer,
db.ForeignKey('users.id', ondelete="CASCADE"),
nullable=False)
post_id = db.Column(db.Integer,
db.ForeignKey('posts.id', ondelete="CASCADE"),
nullable=False)
wave_id = db.Column(db.Integer,
db.ForeignKey('waves.id', ondelete="CASCADE"),
nullable=True)
stage = db.Column(db.Integer, nullable=False, default=0)
event = db.Column(db.String(15), nullable=False)
content = db.Column(db.String(250), nullable=True)
seen = db.Column(db.Integer, nullable=False, default=0)
date_posted = db.Column(db.DateTime,
nullable=False,
default=datetime.utcnow)
def __repr__(self):
return f"Notification on('{self.post.title}', '{self.user.username}')"
class Users(db.Model, UserMixin):
id = db.Column(db.Integer, primary_key=True)
username = db.Column(db.String(18), unique=True, nullable=False)
rank = db.Column(db.String(15), nullable=False, default='user')
email = db.Column(db.String(35), unique=True, nullable=False)
image_file = db.Column(db.String(100),
nullable=False,
default='default.jpg')
password = db.Column(db.String(60), nullable=False)
bio = db.Column(db.String(200), nullable=True)
is_banned = db.Column(db.Boolean, nullable=False, default=False)
posts = db.relationship('Posts',
backref='author',
lazy=True,
cascade="all, delete",
passive_deletes=True)
tides = db.relationship('Tides',
backref='author',
lazy=True,
cascade="all, delete",
passive_deletes=True)
waves = db.relationship('Waves',
backref='author',
lazy=True,
cascade="all, delete",
passive_deletes=True)
comments = db.relationship('Comments',
backref='author',
lazy=True,
cascade="all, delete",
passive_deletes=True)
replies = db.relationship('Replies',
backref='author',
lazy=True,
cascade="all, delete",
passive_deletes=True)
subscriptions = db.relationship('Subscriptions',
backref='subscriber',
lazy=True,
cascade="all, delete",
passive_deletes=True)
notifications = db.relationship('Notifications',
backref='user',
lazy=True,
cascade="all, delete",
passive_deletes=True)
#subscription methods
def subscribe(self, post):
if not self.follows_post(post):
sub = Subscriptions(user_id=self.id, post_id=post.id)
db.session.add(sub)
def unsubscribe(self, post):
if self.follows_post(post):
Subscriptions.query.filter_by(user_id=self.id,
post_id=post.id).delete()
def follows_post(self, post):
return Subscriptions.query.filter(Subscriptions.user_id == self.id,
Subscriptions.post_id
== post.id).count() > 0
#notification methods
def notify_tide(self, post, tide):
notification = Notifications(user_id=self.id,
event='1',
post_id=post.id,
stage=tide.stage)
db.session.add(notification)
def notify_wave(self, post, wave):
notification = Notifications(user_id=self.id,
event='2',
post_id=post.id,
stage=wave.stage,
wave_id=wave.id)
db.session.add(notification)
def notify_reply(self, post, stage):
notification = Notifications(user_id=self.id,
event='3',
post_id=post.id,
stage=stage)
db.session.add(notification)
def new_notifications(self):
new_notifications = Notifications.query.filter_by(
user_id=self.id,
seen=0).order_by(Notifications.date_posted.desc()).all()
return len(new_notifications)
#posting timeout checks, currently set to 1 second
def timeout_post(self):
last_post = Posts.query.filter_by(user_id=self.id).order_by(
Posts.date_posted.desc()).first()
if last_post:
timedelta = datetime.utcnow() - last_post.date_posted
return timedelta.seconds > 1
else:
return 1
def timeout_comment(self):
last_comment = Comments.query.filter_by(user_id=self.id).order_by(
Comments.date_posted.desc()).first()
if last_comment:
timedelta = datetime.utcnow() - last_comment.date_posted
return timedelta.seconds > 1
else:
return 1
def timeout_reply(self):
last_reply = Replies.query.filter_by(user_id=self.id).order_by(
Replies.date_posted.desc()).first()
if last_reply:
timedelta = datetime.utcnow() - last_reply.date_posted
return timedelta.seconds > 1
else:
return 1
class Posts(db.Model):
#msearch settings
__tablename__ = 'posts'
__searchable__ = ['title', 'description', 'content']
__msearch_schema__ = {
"title":
TEXT(stored=True,
analyzer=RegexTokenizer() | CaseSensitivizer(),
sortable=False),
"content":
TEXT(
stored=True,
analyzer=RegexTokenizer(),
sortable=False,
)
}
id = db.Column(db.Integer, primary_key=True)
stage = db.Column(db.Integer, nullable=False, default=0)
title = db.Column(db.String(250), unique=True, nullable=False)
description = db.Column(db.String(100), nullable=True)
link = db.Column(db.String(100), nullable=True)
logo_file = db.Column(db.String(100), default='default.jpg')
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('users.id', ondelete="CASCADE"),
nullable=False)
tag_id = db.Column(db.Integer,
db.ForeignKey('tags.id', ondelete="CASCADE"),
nullable=False,
default=1)
tides = db.relationship('Tides',
backref='post',
lazy=True,
cascade="all, delete",
passive_deletes=True)
waves = db.relationship('Waves',
backref='post',
lazy=True,
cascade="all, delete",
passive_deletes=True)
comments = db.relationship('Comments',
backref='post',
lazy=True,
cascade="all, delete",
passive_deletes=True)
replies = db.relationship('Replies',
backref='post',
lazy=True,
cascade="all, delete",
passive_deletes=True)
subscribers = db.relationship('Subscriptions',
backref='post',
lazy=True,
cascade="all, delete",
passive_deletes=True)
notifications = db.relationship('Notifications',
backref='post',
lazy=True,
cascade="all, delete",
passive_deletes=True)
images = db.relationship('Images',
backref='post',
lazy=True,
cascade="all, delete",
passive_deletes=True)
links = db.relationship('Links',
backref='post',
lazy=True,
cascade="all, delete",
passive_deletes=True)
keywords = db.relationship('KeywordLinks',
backref='post',
lazy=True,
cascade="all, delete",
passive_deletes=True)
# extraction methods used in jinja rendering and the serializer below
def follownum(self): #subscribers
followers = Subscriptions.query.filter_by(post_id=self.id).all()
return len(followers)
def commentnum(
self
): #combined number of comments and replies to all project stages
comments = Comments.query.filter_by(post_id=self.id).all()
replies = Replies.query.filter_by(post_id=self.id).all()
return len(comments) + len(replies)
def get_tag(self):
tag = Tags.query.filter_by(id=self.tag_id).first()
return tag.tag
#custom JSON serializer, this one is used for the homepage infinite scrolling feed
@property
def serialize(self):
return {
'title': self.title,
'content': self.description,
'comments': self.commentnum(),
'subs': self.follownum(),
'stage': self.stage,
'logo': self.logo_file,
'tag': self.get_tag(),
'date_posted': moment.create(self.date_posted).fromNow()
}