django.db.utils.ProgrammingError: column calculator_calculation._id does not exist using heroku and djongo
django.db.utils.ProgrammingError: column calculator_calculation._id does not exist using heroku and djongo
我的应用程序在我的本地计算机上运行，但是当使用完全相同的代码部署到 heroku 时，在对涉及任何数据库交互的 API 视图使用 get 请求时出现错误。我有一种感觉，heroku 出于某种原因正在尝试使用 postgres，即使我的代码中没有任何处理 postgres 的代码。感谢任何帮助，即使 mongo 不需要迁移，我已经用一百万种不同的方式完成了迁移，但没有成功。
下面的错误和代码
2019-11-21T18:26:15.428986+00:00 app[web.1]: Traceback (most recent call last):
2019-11-21T18:26:15.428989+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/core/handlers/exception.py", line 34, in inner
2019-11-21T18:26:15.428991+00:00 app[web.1]: response = get_response(request)
2019-11-21T18:26:15.428993+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/core/handlers/base.py", line 115, in _get_response
2019-11-21T18:26:15.428995+00:00 app[web.1]: response = self.process_exception_by_middleware(e, request)
2019-11-21T18:26:15.428997+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/core/handlers/base.py", line 113, in _get_response
2019-11-21T18:26:15.429000+00:00 app[web.1]: response = wrapped_callback(request, *callback_args, **callback_kwargs)
2019-11-21T18:26:15.429002+00:00 app[web.1]: File "/app/calculator/views.py", line 22, in calculate
2019-11-21T18:26:15.429004+00:00 app[web.1]: print(calcs)
2019-11-21T18:26:15.429006+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/query.py", line 250, in __repr__
2019-11-21T18:26:15.429008+00:00 app[web.1]: data = list(self[:REPR_OUTPUT_SIZE + 1])
2019-11-21T18:26:15.429010+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/query.py", line 274, in __iter__
2019-11-21T18:26:15.429012+00:00 app[web.1]: self._fetch_all()
2019-11-21T18:26:15.429014+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/query.py", line 1242, in _fetch_all
2019-11-21T18:26:15.429016+00:00 app[web.1]: self._result_cache = list(self._iterable_class(self))
2019-11-21T18:26:15.429018+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/query.py", line 55, in __iter__
2019-11-21T18:26:15.429020+00:00 app[web.1]: results = compiler.execute_sql(chunked_fetch=self.chunked_fetch, chunk_size=self.chunk_size)
2019-11-21T18:26:15.429022+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/sql/compiler.py", line 1100, in execute_sql
2019-11-21T18:26:15.429024+00:00 app[web.1]: cursor.execute(sql, params)
2019-11-21T18:26:15.429026+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/backends/utils.py", line 99, in execute
2019-11-21T18:26:15.429028+00:00 app[web.1]: return super().execute(sql, params)
2019-11-21T18:26:15.429030+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/backends/utils.py", line 67, in execute
2019-11-21T18:26:15.429032+00:00 app[web.1]: return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
2019-11-21T18:26:15.429034+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/backends/utils.py", line 76, in _execute_with_wrappers
2019-11-21T18:26:15.429036+00:00 app[web.1]: return executor(sql, params, many, context)
2019-11-21T18:26:15.429038+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/backends/utils.py", line 84, in _execute
2019-11-21T18:26:15.429040+00:00 app[web.1]: return self.cursor.execute(sql, params)
2019-11-21T18:26:15.429042+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/utils.py", line 89, in __exit__
2019-11-21T18:26:15.429044+00:00 app[web.1]: raise dj_exc_value.with_traceback(traceback) from exc_value
2019-11-21T18:26:15.429046+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/backends/utils.py", line 84, in _execute
2019-11-21T18:26:15.429048+00:00 app[web.1]: return self.cursor.execute(sql, params)
2019-11-21T18:26:15.429050+00:00 app[web.1]: django.db.utils.ProgrammingError: column calculator_calculation._id does not exist
2019-11-21T18:26:15.429052+00:00 app[web.1]: LINE 1: SELECT "calculator_calculation"."_id", "calculator_calculati...
2019-11-21T18:26:15.429054+00:00 app[web.1]: ^
2019-11-21T18:26:15.429062+00:00 app[web.1]:
据我所知，我的 mongoDB
已正确导入所有内容并且设置正确
import os
import environ
import django_heroku
env = os.environ
# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
SECRET_KEY = 'secret'
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True
ALLOWED_HOSTS = []
STATICFILES_DIRS = (
)
# STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'
STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')
# Application definition
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'calculator.apps.CalculatorConfig'
]
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 = 'sezzleCalculator.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'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 = 'sezzleCalculator.wsgi.application'
# Database
# https://docs.djangoproject.com/en/2.2/ref/settings/#databases
DATABASES = {
"default": {
"ENGINE": "djongo",
"NAME": "appDB",
"HOST": "hostURL",
"PASSWORD": "password",
"USER": "randomuser",
"AUTH_MECHANISM": 'SCRAM-SHA-1',
"AUTH_SOURCE": "admin",
"ENFORCE_SCHEMA": False,
}
}
# Password validation
# https://docs.djangoproject.com/en/2.2/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/2.2/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/2.2/howto/static-files/
STATIC_URL = '/static/'
django_heroku.settings(locals())
此获取请求出错。
def calculate(request):
if request.method == "GET":
calcs = Calculation.objects.filter().order_by("_id")
print(calcs)
calcsReversed = calcs.reverse()
response = {"status": "1", "message": ("OK")}
idx = 0
for calc in calcsReversed:
if idx > 9:
calc.delete()
response[idx] = {"first":calc.first,"second":calc.second,"operator":calc.operator,"result":calc.result}
idx +=1
print(response)
return HttpResponse(json.dumps(response), content_type="application/json")
elif request.method == "POST":
jsonIncoming = json.loads(request.body.decode("utf8"))
print(jsonIncoming)
calculation = Calculation(result=jsonIncoming["result"], first=jsonIncoming["first"],second=jsonIncoming["second"],operator=jsonIncoming["operator"])
calculation.save()
response = {"status": "1", "message": ("OK"), "type":"post"}
return HttpResponse(json.dumps(response), content_type="application/json")
settings.py (django_heroku.settings(locals())) 中的最后一行使用 heroku 配置中的内容覆盖 DATABASES 设置。
将其更改为 django_heroku.settings(locals(), databases=False) 即可。
另外：您不应在 settings.py 文件中对生产配置进行硬编码。这就是环境变量的用途。您正在使用的 Mongodb-Addon 会自动将凭据添加到配置中。
您可以检查 heroku config 输出或 heroku 仪表板。
Heroku 本身试图遵循 12 factor app principles，如果您托管在 Heroku 上，您也应该这样做。
我的应用程序在我的本地计算机上运行，但是当使用完全相同的代码部署到 heroku 时，在对涉及任何数据库交互的 API 视图使用 get 请求时出现错误。我有一种感觉，heroku 出于某种原因正在尝试使用 postgres，即使我的代码中没有任何处理 postgres 的代码。感谢任何帮助，即使 mongo 不需要迁移，我已经用一百万种不同的方式完成了迁移，但没有成功。
下面的错误和代码
2019-11-21T18:26:15.428986+00:00 app[web.1]: Traceback (most recent call last):
2019-11-21T18:26:15.428989+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/core/handlers/exception.py", line 34, in inner
2019-11-21T18:26:15.428991+00:00 app[web.1]: response = get_response(request)
2019-11-21T18:26:15.428993+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/core/handlers/base.py", line 115, in _get_response
2019-11-21T18:26:15.428995+00:00 app[web.1]: response = self.process_exception_by_middleware(e, request)
2019-11-21T18:26:15.428997+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/core/handlers/base.py", line 113, in _get_response
2019-11-21T18:26:15.429000+00:00 app[web.1]: response = wrapped_callback(request, *callback_args, **callback_kwargs)
2019-11-21T18:26:15.429002+00:00 app[web.1]: File "/app/calculator/views.py", line 22, in calculate
2019-11-21T18:26:15.429004+00:00 app[web.1]: print(calcs)
2019-11-21T18:26:15.429006+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/query.py", line 250, in __repr__
2019-11-21T18:26:15.429008+00:00 app[web.1]: data = list(self[:REPR_OUTPUT_SIZE + 1])
2019-11-21T18:26:15.429010+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/query.py", line 274, in __iter__
2019-11-21T18:26:15.429012+00:00 app[web.1]: self._fetch_all()
2019-11-21T18:26:15.429014+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/query.py", line 1242, in _fetch_all
2019-11-21T18:26:15.429016+00:00 app[web.1]: self._result_cache = list(self._iterable_class(self))
2019-11-21T18:26:15.429018+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/query.py", line 55, in __iter__
2019-11-21T18:26:15.429020+00:00 app[web.1]: results = compiler.execute_sql(chunked_fetch=self.chunked_fetch, chunk_size=self.chunk_size)
2019-11-21T18:26:15.429022+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/models/sql/compiler.py", line 1100, in execute_sql
2019-11-21T18:26:15.429024+00:00 app[web.1]: cursor.execute(sql, params)
2019-11-21T18:26:15.429026+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/backends/utils.py", line 99, in execute
2019-11-21T18:26:15.429028+00:00 app[web.1]: return super().execute(sql, params)
2019-11-21T18:26:15.429030+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/backends/utils.py", line 67, in execute
2019-11-21T18:26:15.429032+00:00 app[web.1]: return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
2019-11-21T18:26:15.429034+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/backends/utils.py", line 76, in _execute_with_wrappers
2019-11-21T18:26:15.429036+00:00 app[web.1]: return executor(sql, params, many, context)
2019-11-21T18:26:15.429038+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/backends/utils.py", line 84, in _execute
2019-11-21T18:26:15.429040+00:00 app[web.1]: return self.cursor.execute(sql, params)
2019-11-21T18:26:15.429042+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/utils.py", line 89, in __exit__
2019-11-21T18:26:15.429044+00:00 app[web.1]: raise dj_exc_value.with_traceback(traceback) from exc_value
2019-11-21T18:26:15.429046+00:00 app[web.1]: File "/app/.heroku/python/lib/python3.6/site-packages/django/db/backends/utils.py", line 84, in _execute
2019-11-21T18:26:15.429048+00:00 app[web.1]: return self.cursor.execute(sql, params)
2019-11-21T18:26:15.429050+00:00 app[web.1]: django.db.utils.ProgrammingError: column calculator_calculation._id does not exist
2019-11-21T18:26:15.429052+00:00 app[web.1]: LINE 1: SELECT "calculator_calculation"."_id", "calculator_calculati...
2019-11-21T18:26:15.429054+00:00 app[web.1]: ^
2019-11-21T18:26:15.429062+00:00 app[web.1]:
据我所知，我的 mongoDB
已正确导入所有内容并且设置正确import os
import environ
import django_heroku
env = os.environ
# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
SECRET_KEY = 'secret'
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True
ALLOWED_HOSTS = []
STATICFILES_DIRS = (
)
# STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'
STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')
# Application definition
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'calculator.apps.CalculatorConfig'
]
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 = 'sezzleCalculator.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'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 = 'sezzleCalculator.wsgi.application'
# Database
# https://docs.djangoproject.com/en/2.2/ref/settings/#databases
DATABASES = {
"default": {
"ENGINE": "djongo",
"NAME": "appDB",
"HOST": "hostURL",
"PASSWORD": "password",
"USER": "randomuser",
"AUTH_MECHANISM": 'SCRAM-SHA-1',
"AUTH_SOURCE": "admin",
"ENFORCE_SCHEMA": False,
}
}
# Password validation
# https://docs.djangoproject.com/en/2.2/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/2.2/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/2.2/howto/static-files/
STATIC_URL = '/static/'
django_heroku.settings(locals())
此获取请求出错。
def calculate(request):
if request.method == "GET":
calcs = Calculation.objects.filter().order_by("_id")
print(calcs)
calcsReversed = calcs.reverse()
response = {"status": "1", "message": ("OK")}
idx = 0
for calc in calcsReversed:
if idx > 9:
calc.delete()
response[idx] = {"first":calc.first,"second":calc.second,"operator":calc.operator,"result":calc.result}
idx +=1
print(response)
return HttpResponse(json.dumps(response), content_type="application/json")
elif request.method == "POST":
jsonIncoming = json.loads(request.body.decode("utf8"))
print(jsonIncoming)
calculation = Calculation(result=jsonIncoming["result"], first=jsonIncoming["first"],second=jsonIncoming["second"],operator=jsonIncoming["operator"])
calculation.save()
response = {"status": "1", "message": ("OK"), "type":"post"}
return HttpResponse(json.dumps(response), content_type="application/json")
settings.py (django_heroku.settings(locals())) 中的最后一行使用 heroku 配置中的内容覆盖 DATABASES 设置。
将其更改为 django_heroku.settings(locals(), databases=False) 即可。
另外：您不应在 settings.py 文件中对生产配置进行硬编码。这就是环境变量的用途。您正在使用的 Mongodb-Addon 会自动将凭据添加到配置中。
您可以检查 heroku config 输出或 heroku 仪表板。
Heroku 本身试图遵循 12 factor app principles，如果您托管在 Heroku 上，您也应该这样做。