管理信息系统 课程设计

bp = Blueprint("front",__name__)

@bp.route(‘/‘)
def index():
    board_id = request.args.get(‘bd‘, type=int, default=None)
    banners = BannerModel.query.order_by(BannerModel.priority.desc()).limit(4)  # 轮播图的排序优先显示
    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

    sort = request.args.get(‘sort‘, type=int, default=1)
    posts = None
    pasts = None
    total = 0
    query_obj = None

    if sort == 1:
        query_obj = PostModel.query.order_by(PostModel.create_time.desc())
    elif sort == 2:
        query_obj = PostModel.query.order_by(PostModel.create_time.desc())
    elif sort == 3:
        query_obj = PostModel.query.order_by(PostModel.create_time.desc())

    elif sort == 4:

        query_obj = db.session.query(PostModel).outerjoin(CommentModel).group_by(PostModel.id).order_by(
        func.count(CommentModel.id).desc(), PostModel.create_time.desc())

    if board_id:
        query_obj = query_obj.filter_by(board_id=board_id)
        posts = query_obj.slice(start, end)
        total = query_obj.count()
    else:
        posts = query_obj.slice(start, end)
        total = query_obj.count()

    pagination = Pagination(bs_version=3, page=page, total=total, outer_window=0, inner_window=2)
    context = {
        ‘banners‘: banners,
        ‘boards‘: boards,
        ‘posts‘: posts,
        ‘pagination‘: pagination,
        ‘current_board‘: board_id
    }
    return render_template(‘front/front_index.html‘, **context)

#详情页
@bp.route(‘/p/<post_id>/‘)
def post_detail(post_id):
    post = PostModel.query.get(post_id)
    if not post:
        abort(404)
    return render_template(‘front/front_pdetail.html‘,post=post)

#评论
@bp.route(‘/acomment/‘,methods=[‘POST‘])
@login_required
def add_comment():
    form=AddCommonPostForm(request.form)
    if form.validate():
        content=form.content.data
        post_id=form.post_id.data
        post=PostModel.query.get(post_id)
        if post:
            comment=CommentModel(content=content)
            comment.post=post
            comment.author=g.front_user
            db.session.commit()
            return restful.success()
        else:
            return restful.params_error(‘没有这篇帖子‘)
    else:
        return restful.params_error(form.get_error())

@bp.route(‘/apost/‘,methods=[‘GET‘,‘POST‘])
@login_required
def apost():
    if request.method == ‘GET‘:
        boards = BoardModel.query.all()
        return render_template(‘front/front_apost.html‘,boards=boards)
    else:
        form = AddPostForm(request.form)
        if form.validate():
            title = form.title.data
            content = form.content.data
            board_id = form.board_id.data
            board = BoardModel.query.get(board_id)
            if not board:
                return restful.params_error(message=‘没有这个板块！‘)
            post = PostModel(title=title,content=content)
            post.board = board
            post.author=g.front_user
            db.session.add(post)
            db.session.commit()
            return restful.success()
        else:
            return restful.params_error(message=form.get_error())

#注册
class SignupView(views.MethodView):
    def get(self):
        return_to = request.referrer
        if return_to and return_to != request.url and safeutils.is_safe_url(return_to):
            return render_template(‘front/front_signup.html‘,return_to=return_to)
        else:
            return render_template(‘front/front_signup.html‘)

    def post(self):
        form = SignupForm(request.form)
        if form.validate():
            telephone = form.telephone.data
            username = form.username.data
            password = form.password1.data
            user = FrontUser(telephone=telephone,username=username,password=password)
            db.session.add(user)
            db.session.commit()
            return restful.success()
        else:
            print(form.get_error())
            return restful.params_error(message=form.get_error())

#登录
class SigninView(views.MethodView):
    def get(self):
        return_to = request.referrer
        if return_to and return_to != request.url and return_to != url_for("front.signup") and safeutils.is_safe_url(return_to):
            return render_template(‘front/front_signin.html‘,return_to=return_to)
        else:
            return render_template(‘front/front_signin.html‘)

    def post(self):
        form = SigninForm(request.form)
        if form.validate():
            telephone = form.telephone.data
            password = form.password.data
            remember = form.remeber.data
            user = FrontUser.query.filter_by(telephone=telephone).first()
            if user and user.check_password(password):
                session[config.FRONT_USER_ID] = user.id
                if remember:
                    session.permanent = True
                return restful.success()
            else:
                return restful.params_error(message=‘手机号或密码错误！‘)
        else:
            return restful.params_error(message=form.get_error())

bp.add_url_rule(‘/signup/‘,view_func=SignupView.as_view(‘signup‘))
bp.add_url_rule(‘/signin/‘,view_func=SigninView.as_view(‘signin‘))