1 from django.contrib import messages

 1 @csrf_exempt

 2 def search(request):

 3     if request.method == 'GET':

 4         bookname = request.GET.get('bookname')

 5         bookinfo = Book.objects.filter(bookname=bookname)

 6         is_staff = request.user.is_staff

 7         username = request.user.username

 8         gonggao = Gonggao.objects.all().order_by("-c_time")

 9         liuyanban_all = liuyan.objects.all().order_by("-c_time")

10         c2 = JieInfo.objects.filter(u_name=username, book_name=bookname)

11         c3 = JieInfo.objects.filter(u_name=username).count()

12         if username == '':

13             messages.error(request, '亲，请您先登录,才能使用该功能。')

14             return redirect('/')

15         else:

16             if bookname == '':

17                 messages.error(request, '亲，搜索内容不能为空哦。')

18                 return redirect('/')

19             elif c2.exists():

20                 messages.error(request, '对不起，您不能再次借阅该图书了。')

21                 return redirect('/')

22             elif c3 == 5:

23                 messages.error(request, '对不起，您将超出图书馆借阅图书数量限制。')

24                 return redirect('/')

25             else:

26                 if bookinfo.exists():

27                     return render(request, "systeam/searched.html",

28                                   {'bookinfo': bookinfo, 'username': username, 'is_staff': is_staff})

29                 else:

30                     messages.error(request, '亲，没有这本书呢。')

31                     return redirect('/')

32     else:

33         return render(request, "systeam/searched.html", {'username': username})

 1 {% if messages %}

 2

 3     <ul class="messages">

 4

 5     {% for message in messages %}

 6

 7

 8         <li{%if message.tags %} class="{{ message.tags }}"{% endif %}>

 9             <div class="m_title">

10                 {{ message.tags }}

11                 <a href="" id="a_tuichu">

12                     <i class="iconfont icon-fork"></i>

13                 </a>

14             </div>

15             <div id="m_box">

16                 {{ message }}

17             </div>

18             <a href="" id="a_sure">

19                 <button id="button_sure">

20                 确认

21                 </button>

22             </a>

23         </li>

24

25     {% endfor %}

26

27     </ul>

28

29     {% endif %}