小编The*_*ard的帖子

这是我的模型：

class Entry(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    manifest = db.Column(db.String, default=None, nullable=True)
    name = db.Column(db.String, default=None, nullable=True)
    actions = db.relationship('Action', backref='entry', lazy='dynamic')

class Action(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    action_date = db.Column(db.DateTime, default=datetime.utcnow, nullable=True)
    location = db.Column(db.String, default=None, nullable=True)
    entry_id = db.Column(db.Integer, db.ForeignKey('entry.id'))

routes.py：

@app.route('/manifests/<manifest_to_view>')
@login_required
def view_manifest(manifest_to_view):
    page = request.args.get('page', 1, type=int)
    entries = Entry.query.filter_by(manifest=manifest_to_view).paginate(
        page, app.config['POSTS_PER_PAGE'], False)
    next_url = url_for('view_manifest', manifest_to_view=manifest_to_view, page=entries.next_num) \
        if entries.has_next else None
    prev_url = url_for('view_manifest', manifest_to_view=manifest_to_view, page=entries.prev_num) \
        if entries.has_prev else None
    return …