一百四十一：CMS系统之根据板块过滤显示帖子

视图，根据传过来的板块id查数据

@bp.route('/')
def index():
    board_id = request.args.get('board_id', type=int, default=None)
    banners = BannerModel.query.order_by(BannerModel.priority.desc()).limit(4)  # 只取4条
    boards = BoardModel.query.all()
    page = request.args.get(get_page_parameter(), type=int, default=1)
    start = (page - 1) * config.PER_PAGE
    end = start + config.PER_PAGE
    if board_id:
        query_obj = PostModel.query.filter_by(board_id=board_id)
        posts = query_obj.slice(start, end)
        total = query_obj.count()
    else:
        posts = PostModel.query.slice(start, end)
        total = PostModel.query.count()
    # bs_version: bootstrap版本
    pagination = Pagination(bs_version=3, page=page, total=total)
    context = {'banners': banners, 'boards': boards, 'posts': posts,
               'pagination': pagination, 'current_board': board_id}  # 把board_id传给前端用于渲染选中事件
    return render_template('front/front_index.html', **context)

页面

效果