51 lines
1.3 KiB
Python
51 lines
1.3 KiB
Python
from app import db
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from app.models.post import Post
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from sqlalchemy.orm import backref
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class Comment(Post):
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__tablename__ = 'comment'
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__mapper_args__ = {'polymorphic_identity': __tablename__}
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# ID of the underlying Post object
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id = db.Column(db.Integer, db.ForeignKey('post.id'), primary_key=True)
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# Comment contents
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text = db.Column(db.UnicodeText)
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# Parent thread
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thread_id = db.Column(db.Integer, db.ForeignKey('thread.id'),
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nullable=False)
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thread = db.relationship('Thread',
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backref=backref('comments', lazy='dynamic'),
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foreign_keys=thread_id)
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def __init__(self, author, text, thread):
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"""
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Create a new Comment in a thread.
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Arguments:
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author -- comment poster (User)
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text -- contents (unicode string)
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thread -- parent discussion thread (Thread)
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"""
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Post.__init__(self, author)
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self.thread = thread
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self.text = text
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def edit(self, new_text):
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"""Edit a Comment's contents."""
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self.text = new_text
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self.touch()
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def delete(self):
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"""Recursively delete post and all associated contents."""
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# FIXME: Attached files?
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db.session.delete(self)
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def __repr__(self):
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return f'<Comment: #{self.id}>'
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