views.py 文件源码

def follow_post(id):
    user = session.query(User).filter_by(id=id).one()
    cuid = current_user.get_id()
    cuser = session.query(User).filter_by(id=cuid).one()
    try:
        if 'Unfollow' in request.form:
            session.add(cuser.unfollow(user))
            session.commit()
            flash("Good call unfollowing " + user.name +
                  ".  Nobody needs that.", "success")
            return redirect(url_for("entries"))
        elif 'Follow' in request.form:
            session.add(cuser.follow(user))
            session.commit()
            flash("You are now following " + user.name +
                  ".", "success")
            return redirect(url_for("stats_get"))
    except (IntegrityError, StaleDataError, UnmappedInstanceError):
        flash("That didn't work... mind letting Jon know?", "danger")
        session.rollback()
        return redirect(url_for("entries"))