Python Django个人网站搭建9-对用户注册和删除的实现

zifan

发布于 2021-12-14 12:29:31

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发布于 2021-12-14 12:29:31

文章被收录于专栏：个人编程技术学习与分享

作者： zifanwang 发布于2020-05-15

1. 用户的注册

首先在userprofile/views.py中增加用户注册函数：

from userprofile.froms import UserLoginForm,UserRegisterForm
def user_register(request):
   if request.method == 'POST':
       user_register_form = UserRegisterForm(data=request.POST)
       if user_register_form.is_valid():
           new_user = user_register_form.save(commit=False)
           # 设置密码
           new_user.set_password(user_register_form.cleaned_data['password'])
           new_user.save()
           # 保存好数据后立即登录并返回博客列表页面
           login(request, new_user)
           return redirect("article:article_list")
       else:
           return HttpResponse("注册表单输入有误。请重新输入~")
   elif request.method == 'GET':
       user_register_form = UserRegisterForm()
       context = { 'form': user_register_form }
       return render(request, 'userprofile/register.html', context)
   else:
       return HttpResponse("请使用GET或POST请求数据")

再在userprofile/froms.py增加 UserRegisterForm：

class UserRegisterForm(forms.ModelForm):
    # 复写 User 的密码
    password = forms.CharField()
    password2 = forms.CharField()
    class Meta:
        model = User
        fields = ('username', 'email', 'password')
    def clean_password2(self):
        data = self.cleaned_data
        if data.get('password') == data.get('password2'):
            return data.get('password')
        else:
            raise forms.ValidationError("密码输入不一致,请重试。")

接下来编写模板和 urls.py 新建templates/userprofile/register.html并输入：

{% extends "base.html" %}
{% load static %}
{% block title %}
   register
{% endblock title %}
{% block content %}
   <div class="container">
       <div class="row">
           <div class="col-12">
               <br>
           <form method="post" action=".">
               {% csrf_token %}
               <div class="form-group col-md-4">
                   <label for="username">Username</label>
                   <input type="text" class="form-control" id="username" name="username" required>
               </div>
               <div class="form-group col-md-4">
                   <label for="email">Email</label>
                   <input type="text" class="form-control" id="email" name="email">
               </div>
               <div class="form-group col-md-4">
                   <label for="password">Password</label>
                   <input type="password" class="form-control" id="password" name="password" required>
               </div>
               <div class="form-group col-md-4">
                   <label for="password2">Password again</label>
                   <input type="password" class="form-control" id="password2" name="password2" required>
               </div>
               <button type="submit" class="btn btn-primary">submit</button>
           </form>
{#                #}
           </div>
       </div>
   </div>
{% endblock content %}

接下来在登陆界面中增加注册入口编写login.html：

{% extends "base.html" %}
{% load static %}
{% block title %}
   Login
{% endblock title %}
{% block content %}
   <div class="container">
       <div class="row">
           <div class="col-12">
               <br>
               <form method="post" action=".">
                   {% csrf_token %}
                   <div class="form-group">
                       <label for="username">Username</label>
                       <input type="text" class="form-control" id="username" name="username">
                   </div>
                   <div class="form-group">
                       <label for="password">Password</label>
                       <input type="password" class="form-control" id="password" name="password">
                   </div>
                   <button type="submit" class="btn btn-primary">Login</button>
               </form>
               <h5>No account yet?</h5>
               <h5>Click <a href='{% url "userprofile:register" %}'>here</a> to register.</h5>
               <br>
           </div>
       </div>
   </div>
{% endblock content %}

最后在userprofile/urls.py中新增注册路由：

path('register/', views.user_register, name="register"),

然后我们启动重启服务器(python manage.py runserver)打开登陆界面http://127.0.0.1:8000/userprofile/login/：

点击here：

接着填写注册信息点击提交后就可以看见成功注册并且自动登陆了。

2. 用户的删除

编写userprofile/views.py：

from django.contrib.auth.models import User
# 引入验证登录的装饰器
from django.contrib.auth.decorators import login_required
...
@login_required(login_url='/userprofile/login/')
def user_delete(request, id):
    user = User.objects.get(id=id)
    if request.user == user:
        logout(request)
        user.delete()
        return redirect("article:article_list")
    else:
        return HttpResponse("你没有删除操作的权限。")

@login_required是一个装饰器，就是 @login_required要求调用user_delete()函数时，用户必须登陆如果不登陆则不执行函数并且将重定向到 /userprofile/login/地址去。然后改写templates/header.html，新增删除用户入口，并且添加弹窗组件的代码：

<head>
    {% if user.is_authenticated %}
        <script>
            function user_delete() {
                var r=confirm("Wanna delete this user?");
                if (r==true)
                {
                    window.location='{% url "userprofile:delete" user.id %}';
                }
            }
        </script>
    {% endif %}
</head>
<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
 <div class="container">
   <a class="navbar-brand" href="#">My Site</a>
   <div>
     <ul class="navbar-nav">
       <li class="nav-item">
         <a class="nav-link" href="{% url 'article:article_list' %}">Article</a>
       </li>
         <li class="nav-item">
             <a class="nav-link" href="{% url 'article:article_create' %}">New</a>
         </li>
         {% if user.is_authenticated %}
           <li class="nav-item dropdown">
               <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                 {{ user.username }}
               </a>
               <div class="dropdown-menu" aria-labelledby="navbarDropdown">
                 <a class="dropdown-item" href="{% url "userprofile:logout" %}">Exit</a>
         <a class="dropdown-item" href="#" onclick="user_delete()">Delete</a>
               </div>
           </li>
           {% else %}
               <li class="nav-item">
                   <a class="nav-link" href="{% url 'userprofile:login' %}">Login</a>
               </li>
         {% endif %}
     </ul>
   </div>
 </div>
</nav>

最后修改userprofile/urls.py：

path('delete/<int:id>/', views.user_delete, name='delete'),

看一下效果：

点击删除用户(注意请新注册一个用户并删除它，不要删除root)就可以删除用户了

本文参与腾讯云自媒体同步曝光计划，分享自作者个人站点/博客。

原始发表：2020-05-15，如有侵权请联系 cloudcommunity@tencent.com 删除

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