我正在使用 Django。
运行 python manage migrate 后，数据库已正常创建。然而，一段时间后，数据库突然消失了。我的代码中不存在 drop 命令。
我很好奇为什么数据库被删除了。所有数据均已删除。 （数据库、集合、字段）
有谁知道原因吗？
这是我的代码
下面的代码是应用程序/模型
from djongo import models
class RealTime(models.Model):
_id = models.CharField(max_length=255, primary_key=True)
site = models.CharField(max_length=125)
title = models.CharField(max_length=255)
url = models.URLField()
create_time = models.DateTimeField()
GPTAnswer = models.TextField()
class Meta:
db_table = 'realtimebest'
class Daily(models.Model):
rank = models.IntegerField()
title = models.CharField(max_length=255)
url = models.URLField()
create_time = models.DateTimeField()
下面的代码是架构：
import graphene
from graphene_django.types import DjangoObjectType
from graphene import Mutation
from .views import board_summary
from .communityWebsite.models import RealTime, Daily
class RealTimeType(DjangoObjectType):
class Meta:
model = RealTime
class DailyType(DjangoObjectType):
class Meta:
model = Daily
class Query(graphene.ObjectType):
all_realtime = graphene.List(RealTimeType)
all_daily = graphene.List(DailyType)
def resolve_all_realtime(self, info, **kwargs):
return RealTime.objects.all()
def resolve_all_daily(self, info, **kwargs):
return Daily.objects.all()
class SummaryBoardMutation(Mutation):
class Arguments:
board_id = graphene.String(required=True)
response = graphene.String()
def mutate(self, info, board_id):
response = board_summary(board_id)
return SummaryBoardMutation(response=response)
class Mutation(graphene.ObjectType):
summary_board = SummaryBoardMutation.Field()
schema = graphene.Schema(query=Query, mutation=Mutation)
# Application definition
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
"corsheaders",
# Graph QL
'graphene_django',
'graphene_mongo',
'webCrwaling',
'kingwangjjang',
'chatGPT'
]
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'corsheaders.middleware.CorsMiddleware',
# 'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
ROOT_URLCONF = 'kingwangjjang.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
# 'DIRS': [],
"DIRS": [os.path.join(BASE_DIR, '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 = 'kingwangjjang.wsgi.application'
# Database
# MongoDB settings
DB_URI = 'mongodb://'+ DB_HOST + '/' + DB_USER + ':' + DB_PASSWORD
DATABASES = {
'default': {
'ENGINE': 'djongo',
'NAME': DB_NAME,
'ENFORCE_SCHEMA': True,
'CLIENT': {
'host': DB_URI
}
}
}
# Password validation
# https://docs.djangoproject.com/en/5.0/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/5.0/topics/i18n/
LANGUAGE_CODE = 'ko-kr'
TIME_ZONE = 'Asia/Seoul'
USE_I18N = True
USE_TZ = True
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/5.0/howto/static-files/
STATIC_URL = 'static/'
# Default primary key field type
# https://docs.djangoproject.com/en/5.0/ref/settings/#default-auto-field
DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
# GRAPHENE = {
# "SCHEMA": "webCrwaling.schema.schema"
# }
插入数据
def get_real_time_best(self):
req = requests.get('https://www.dcinside.com/', headers=self.g_headers[0])
html_content = req.text
soup = BeautifulSoup(html_content, 'html.parser')
li_elements = soup.select('#dcbest_list_date li')
already_exists_post = []
for li in li_elements:
p_element = li.select_one('.box.besttxt p')
a_element = li.select_one('.main_log')
time_element = li.select_one('.box.best_info .time')
if p_element and a_element and time_element:
p_text = p_element.get_text(strip=True)
a_href = a_element['href']
no_value = a_href.split('no=')[-1]
time_text = time_element.get_text(strip=True)
if(time_text.find('-') > 0):
break # 오늘 것만 추가 (이전 글은 제외 (DB에서 확인))
# 시간 13:40 -> 2024.01.29 13:40 로 수정
now = datetime.now()
hour, minute = map(int, time_text.split(':'))
# 시간 설정 및 datetime 객체 생성
target_datetime = datetime(now.year, now.month, now.day, hour, minute)
try:
existing_instance = RealTime.objects.filter(_id=no_value).first()
if existing_instance:
already_exists_post.append(no_value)
continue
else:
RealTime.objects.get_or_create(
_id=no_value,
defaults={
'site' : 'dcinside',
'title': p_text,
'url': a_href,
'create_time': target_datetime,
'GPTAnswer': DEFAILT_GPT_ANSWER
}
)
except IntegrityError:
continue
print("already exists post", already_exists_post)
DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField' 这会是一个问题吗？
需要修改哪部分才能解决数据完全消失的问题？
但是
Python manage migrate感谢那些回答我问题的人。
我给mongodb添加了一个认证过程，解决了db消失的问题。您在评论期间要求我检查日志，这对我很有帮助。谢谢你。