Question

所以我一直试图将信息从Django的前端保存到后端。但是，当我在Django上检查我的数据库时，它不存在。你能否检查一下我做错了什么，因为我只想要数据库中的电子邮件和密码。我是Django的新手。谢谢！

view.py

# -*- coding: utf-8 -*-
from __future__ import unicode_literals

from django.shortcuts import render

from django.contrib.auth import login, authenticate
from django.contrib.auth.forms import UserCreationForm
from django.shortcuts import render, redirect
#from django.contrib.auth import views as auth_views

#from . import views
# Create your views here.

def login(request):
    return render(request, 'login.html')

def signup(request):
    if request.method == 'POST':
        form = UserCreationForm(request.POST)
        if form.is_valid():
            form.save()
            #username = form.cleaned_data.get('username')
            #raw_password = form.cleaned_data.get('password1')
            #user = authenticate(username=username, password=raw_password)
            #login(request, user)
            return redirect('login.html')
        else:
            form = UserCreationForm()
        return render(request, 'templates/signup_form.html', {'form': form})
    return render(request, 'signup_form.html')

signup_form.html

{% extends 'signup.html' %}

{% block body %}

    <form method = "post">
        {% csrf_token %}
        {{ form.as_p}}
    </form>

{% endblock %}

models.py

# -*- coding: utf-8 -*-
from __future__ import unicode_literals

from django.db import models

# Create your models here.

settings.py

"""
Django settings for mysite project.

Generated by 'django-admin startproject' using Django 1.11.7.

For more information on this file, see
https://docs.djangoproject.com/en/1.11/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/1.11/ref/settings/
"""

import os

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.11/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = '*o7vg-hqbcx9bqh6fcg^daw21(#2bb8ik14-^02e!nus*y##&c'

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = []


# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'mysite.urls'

TEMPLATES = [
    { #['./website/static'],
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': ['./website/templates'],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'mysite.wsgi.application'


# Database
# https://docs.djangoproject.com/en/1.11/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}


# Password validation
# https://docs.djangoproject.com/en/1.11/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/1.11/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.11/howto/static-files/

STATIC_URL = '/static/'

STATICFILES_DIRS = (
    os.path.join(BASE_DIR, "website", "static"),
)

Answer 1

将内部else的{{1}}子句移至外部if form.is_valid()并删除最后的if request.method == 'POST'语句。

您的注册视图应如下所示。

return

参考： https://docs.djangoproject.com/en/1.11/topics/forms/#the-view

Answer 2

您希望将表单提交到同一网址，但是通过帖子请求，您需要提供.作为action变量的值，格式为

在您的注册表单中添加action变量，如下所示

<form method = "post" action=".">
    {% csrf_token %}
    {{ form.as_p}}
</form>

您的视图无法处理get网址的signup请求，这是由于额外的缩进造成的。按如下所示更改注册视图

def signup(request):
    if request.method == 'POST':
        form = UserCreationForm(request.POST)
        if form.is_valid():
            form.save()
            #username = form.cleaned_data.get('username')
            #raw_password = form.cleaned_data.get('password1')
            #user = authenticate(username=username, password=raw_password)
            #login(request, user)
            return redirect('login.html')
        else:
            #this means the form is not valid
            #so you need to provide the varibles as they were submitted, so the user can change it to proper values
            form = UserCreationForm(request.POST)
    else:
        #this is when the user sends get request 
        form = UserCreationForm()
    return render(request, 'templates/signup_form.html', {'form': form})

Django没有将信息呈现给数据库

2 个答案: