Django中提示消息messages的设置方式

1. 引入messages模块

from django.contrib import messages

2. 把messages写入view中

@csrf_exempt
def search(request):
if request.method == 'GET':
bookname = request.GET.get('bookname')
bookinfo = Book.objects.filter(bookname=bookname)
is_staff = request.user.is_staff
username = request.user.username
gonggao = Gonggao.objects.all().order_by("-c_time")
liuyanban_all = liuyan.objects.all().order_by("-c_time")
c2 = JieInfo.objects.filter(u_name=username, book_name=bookname)
c3 = JieInfo.objects.filter(u_name=username).count()
if username == '':
messages.error(request, '亲，请您先登录,才能使用该功能。')
return redirect('/')
else:
if bookname == '':
messages.error(request, '亲，搜索内容不能为空哦。')
return redirect('/')
elif c2.exists():
messages.error(request, '对不起，您不能再次借阅该图书了。')
return redirect('/')
elif c3 == 5:
messages.error(request, '对不起，您将超出图书馆借阅图书数量限制。')
return redirect('/')
else:
if bookinfo.exists():
return render(request, "systeam/searched.html",
{'bookinfo': bookinfo, 'username': username, 'is_staff': is_staff})
else:
messages.error(request, '亲，没有这本书呢。')
return redirect('/')
else:
return render(request, "systeam/searched.html", {'username': username})

3. 把messages渲染到页面中

{% if messages %}

<ul class="messages">

{% for message in messages %}

<li{%if message.tags %} class="{{ message.tags }}"{% endif %}>
<div class="m_title">
{{ message.tags }}
<a href="" id=" rel="external nofollow" rel="external nofollow" a_tuichu">
<i class="iconfont icon-fork"></i>
</a>
</div>
<div id="m_box">
{{ message }}
</div>
<a href="" id=" rel="external nofollow" rel="external nofollow" a_sure">
<button id="button_sure">
确认
</button>
</a>
</li>

{% endfor %}

</ul>

{% endif %}

以上这篇Django中提示消息messages的设置方式就是小编分享给大家的全部内容了，希望能给大家一个参考

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