SQLite 数据库未在 Django Heroku 中连接

Question

所以我试图将我的项目部署到 Heroku，我按照以下步骤操作：https://www.codementor.io/@jamesezechukwu/how-to-deploy-django-app-on-heroku-dtsee04d4 .构建成功，我能够运行服务器：https://pcbuildingparts.herokuapp.com/ 但是数据库似乎没有连接，因为数据库中的项目根本没有显示，我尝试在部署之前使用我的超级用户帐户登录我的管理站点，但它不让我进入。 这是我的设置。py

"""
Django settings for dss_project project.

Generated by 'django-admin startproject' using Django 3.0.3.

For more information on this file, see
https://docs.djangoproject.com/en/3.0/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/3.0/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__)))
TEMPLATE_DIR = os.path.join(BASE_DIR,"templates")



# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.0/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = '5u53+p4k-_=70wwg-igg7_5r9!5vh-c6@@hcl&**(e6fod8d(a'

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

ALLOWED_HOSTS = ['pcbuildingparts.herokuapp.com']


# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'bootstrap4',
    'blog',
    'accounts',
    'sim',
    'dss',
]

MIDDLEWARE = [
    'whitenoise.middleware.WhiteNoiseMiddleware',
    '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 = 'dss_project.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [TEMPLATE_DIR,],
        '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 = 'dss_project.wsgi.application'


# Database
# https://docs.djangoproject.com/en/3.0/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/3.0/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/3.0/topics/i18n/

LANGUAGE_CODE = 'id'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.0/howto/static-files/
PROJECT_ROOT   =   os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
STATIC_ROOT  =   os.path.join(PROJECT_ROOT, 'staticfiles')
STATIC_URL = '/static/'
STATICFILES_DIRS = [os.path.join(PROJECT_ROOT, 'static')]

MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
MEDIA_URL = '/media/'

STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'

LOGIN_REDIRECT_URL = "/"
LOGOUT_REDIRECT_URL = "/"

import dj_database_url
prod_db  =  dj_database_url.config(conn_max_age=500)
DATABASES['default'].update(prod_db)

Answer 1

您想在 Heroku 上使用 SQLite 是否有特定的原因？一个不错的选择是使用 postgress addon 并使用 SQLite 进行本地开发和测试。

查看如何在 Django 中连接到 postgres：postgres 您还可以使用django-heroku 包轻松配置您的 django 应用。