from app import db

class Tag(db.Model):
    __tablename__ = 'tag'
    id = db.Column(db.Integer, primary_key=True)

    # Tagged post
    post_id = db.Column(db.Integer, db.ForeignKey('post.id'), index=True)
    post = db.relationship('Post', back_populates='tags', foreign_keys=post_id)
    # Tag name
    name = db.Column(db.String(64), index=True)

    def __init__(self, post, tag):
        self.post = post
        self.tag = tag