Question

我收到错误：

'str' object has no attribute 'META'

Traceback强调了这一段代码：

return render('login.html', c)

我的views.py中的那段代码：

from django.shortcuts import render
from django.http import HttpResponseRedirect    # allows us to redirect the browser to a difference URL
from django.contrib import auth                 # checks username and password handles login and log outs
from django.core.context_processors import csrf # csrf - cross site request forgery. 

def login(request):
    c = {}
    c.update(csrf(request))
    return render('login.html', c)

这就是我的模板：

{% extends "base.html"%}

{% block content %}

    {% if form.errors %}
        <p class = 'error'>Sorry, that's not a valid username or password</p>
    {% endif %}

    <form action = '/accounts/auth/' method = 'post'> {% csrf_token %}
        <label for = 'username'>User name: </label>
        <input type = 'text' name = 'username' value = '' id = 'username'>
        <label for = 'password'>Password: </label>
        <input type = 'password' name = 'password' value = '' id = 'password'>

        <input type = 'submit' value = 'login'>
    </form>
{% endblock %}

我认为我可能错误地使用了render()，但在文档中我认为我正在使用正确的参数。

https://docs.djangoproject.com/en/dev/topics/http/shortcuts/

Answer 1

render()的第一个参数是request对象，因此请将您的行更新为

return render(request, 'login.html', c)

它正在尝试引用request.META，但您传递的是'login.html'字符串，因此该错误。

Answer 2

正确的代码是

  return render(request,'login.html', c)

例如

from django.shortcuts import render

# Create your views here.
def home_page_view(request):
    return render(request,'testapp/home.html')

参考链接：https://docs.djangoproject.com/en/3.0/ref/request-response/

'str'对象没有属性'META'

2 个答案: