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from datetime import datetime
from app import db
from app.models.users import *
class Post(db.Model):
__tablename__ = 'post'
id = db.Column(db.Integer, primary_key=True)
type = db.Column(db.String(20))
__mapper_args__ = {
'polymorphic_identity': __tablename__,
'polymorphic_on': type
}
# Standalone properties
text = db.Column(db.Text(convert_unicode=True))
date_created = db.Column(db.DateTime, default=datetime.now)
date_modified = db.Column(db.DateTime, default=datetime.now)
# Relationships
author_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
def __init__(self, author, text):
""" Create a Post """
self.text = text
if type(author) == Member:
author = author.id
self.author_id = author
def update(self, text):
""" Update a post. Check whether the request sender has the right to do
this! """
self.text = text
self.date_modified = datetime.now()
def change_ownership(self, new_author):
""" Change ownership of a post. Check whether the request sender has the
right to do this! """
if type(new_author) == Member:
new_author = new_author.id
self.author_id = new_author
def __repr__(self):
return f'<Post: #{self.id}>'