Question

我对Django很新。我试图设计我的登录模块并尝试打印我提交的值。

login.html（请原谅缩进错误）

{% load staticfiles %}

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Login Form</title>
    <link rel="stylesheet" href="{% static 'css/lstyle.css' %}"> 
</head>

<body>
{% block content %}
{% if form.errors %}
    <script> alert("Your username and password didn't match. Please try 
again."); </script>
{% endif %}

{% if next %}
{% if user.is_authenticated %}
    <script> alert("Your account doesn't have access to this page. To 
    proceed,please login with an account that has access."); </script>
{% else %}
    <script> alert('Please login'); </script>
{% endif %}
{% endif %}
<div class="login">
    <div class="login-screen">
        <div class="app-title">
            <h1>Login</h1>
        </div>
        <div class="login-form">
                <form method="POST" action="{% url 'login' %}">
{% csrf_token %}
                    <p class="bs-component">
                        <table>
                            <tr>
                                <td>{{ form.username }}</td>
                            </tr>
                            <tr>
                                <td>{{ form.password }}</td>
                           </tr>
                            <tr>
                                <td>{{ form.schoolID }}</td>
                            </tr>
                        </table>
                    </p>
                    <p class="bs-component">
                        <center>
                            <input class="btn btn-success btn-sm" 
                            type="submit" value="login" />
                        </center>
                    </p>
                    <input type="hidden" name="next" value="{{ next }}" 
                    />
                </form>
        </div>
    </div>
</div>
</body>
{% endblock %}
</html>

Forms.py

from django.contrib.auth.forms import AuthenticationForm
from django import forms


# If you don't do this you cannot use Bootstrap CSS
class LoginForm(AuthenticationForm):
      username = forms.CharField(max_length=30,
                       widget=forms.TextInput(attrs={'class': 
                       'form-control', 'name': 'username', 'placeholder': 'Username'}))
      password = forms.CharField(max_length=30,
                       widget=forms.PasswordInput(attrs={'class': 
                       'form-control', "name": 'password', 'placeholder': 'Password'}))
      schoolID = forms.CharField(max_length=100,
                       widget=forms.TextInput(attrs={'class': 
                       'form-control', 'name': 'schoolid', 'placeholder': 'School ID'}))

Views.py

from django.shortcuts import render, redirect
from django.contrib.auth.decorators import login_required
from home.forms import LoginForm
from home.models import UserProfile
from django.views.generic import TemplateView
from django.contrib.auth.models import User


@login_required(login_url="login/")
def home(request):
    if request.method == 'POST':
        myform = LoginForm(request.POST)
        print(myform.data['schoolID'])
        return render(request, "home.html")

工作正常：

html文件渲染完美。
用户身份验证有效
如果“return render（request，”home.html“）”放在if块之外，代码运行完美，我将被重定向到home.html - 输入匹配的用户名和密码。< / p>

事情不起作用：

无法打印schoolID。即，“if request.method =='POST'：”未被执行。
错误：视图home.views.home未返回HttpResponse对象。它改为返回None。

我在这里做错了什么。我只想在执行return语句之前打印表单数据并对其进行操作。请帮忙。

Answer 1

<强>尝试：

\0

在home.html中：将@login_required(login_url="login/") def home(request): context={} if request.method == 'POST': myform = LoginForm(request.POST) if myform.is_valid(): myform.save() context['schoolid'] = myform.cleaned_data.get('schoolID') return render(request, "home.html",context) else: context['myform'] = LoginForm() return render(request, "home.html",context)打印为

schoolid

Answer 2

使用myform = LoginForm(data=request.POST)

或myform = LoginForm(None , request.POST)

因为请求不是第一个参数。

Django POST - 无法检索表单数据，POST检查失败

2 个答案: