未知的命令'sql'

Question

$ ./manage.py sql addressbook                        
Unknown command: 'sql' 

我想看看应用模型生成的SQL，当我得到这个奇怪的错误。

我settings.py

import os 
# Django settings for DoneBox project. 

DEBUG = True 
TEMPLATE_DEBUG = DEBUG 

ADMINS = (
    ('Levi Campbell', 'levicc00123@gmail.com'), 
) 

MANAGERS = ADMINS 

DATABASES = { 
    'default': { 
     'ENGINE': 'django.db.backends.mysql', 
     'NAME': 'levicc00123_cc51', 
     'USER': 'levicc00123_cc51', 
     'PASSWORD': 'n440844291', 
     'HOST': 'mysql0.db.koding.com', 
     'PORT': 3306, 
     } 
    } 
# Local time zone for this installation. Choices can be found here: 
# http://en.wikipedia.org/wiki/List_of_tz_zones_by_name 
# although not all choices may be available on all operating systems. 
# In a Windows environment this must be set to your system time zone. 
TIME_ZONE = 'America/Denver' 

# Language code for this installation. All choices can be found here: 
# http://www.i18nguy.com/unicode/language-identifiers.html 
LANGUAGE_CODE = 'en-us' 

SITE_ID = 1 

# If you set this to False, Django will make some optimizations so as not 
# to load the internationalization machinery. 
USE_I18N = True 

# If you set this to False, Django will not format dates, numbers and 
# calendars according to the current locale. 
USE_L10N = True 

# If you set this to False, Django will not use timezone-aware datetimes. 
USE_TZ = True 

# Absolute filesystem path to the directory that will hold user-uploaded files. 
# Example: "/home/media/media.lawrence.com/media/" 
MEDIA_ROOT = 'media' 

# URL that handles the media served from MEDIA_ROOT. Make sure to use a 
# trailing slash. 
# Examples: "http://media.lawrence.com/media/", "http://example.com/media/" 
MEDIA_URL = 'd1eyn4cjl5vzx0.cloudfront.net' 

# Absolute path to the directory static files should be collected to. 
# Don't put anything in this directory yourself; store your static files 
# in apps' "static/" subdirectories and in STATICFILES_DIRS. 
# Example: "/home/media/media.lawrence.com/static/" 
STATIC_ROOT = 'static' 

# URL prefix for static files. 
# Example: "http://media.lawrence.com/static/" 
STATIC_URL = 'd280kzug7l5rug.cloudfront.net' 

# Additional locations of static files 
STATICFILES_DIRS = (
    # Put strings here, like "/home/html/static" or "C:/www/django/static". 
    # Always use forward slashes, even on Windows. 
    # Don't forget to use absolute paths, not relative paths. 
) 

# List of finder classes that know how to find static files in 
# various locations. 
STATICFILES_FINDERS = (
    'django.contrib.staticfiles.finders.FileSystemFinder', 
    'django.contrib.staticfiles.finders.AppDirectoriesFinder', 
    'django.contrib.staticfiles.finders.DefaultStorageFinder', 
) 

# Make this unique, and don't share it with anybody. 
SECRET_KEY = '2vhexv#0!u4eeyai9jluz8g&h7=815op$8nwa)5+=2m$hl61cu' 

# List of callables that know how to import templates from various sources. 
TEMPLATE_LOADERS = (
    'django.template.loaders.filesystem.Loader', 
    'django.template.loaders.app_directories.Loader', 
    'django.template.loaders.eggs.Loader', 
) 

MIDDLEWARE_CLASSES = (
    'django.middleware.common.CommonMiddleware', 
    'django.contrib.sessions.middleware.SessionMiddleware', 
    'django.middleware.csrf.CsrfViewMiddleware', 
    'django.contrib.auth.middleware.AuthenticationMiddleware', 
    'django.contrib.messages.middleware.MessageMiddleware', 
    # Uncomment the next line for simple clickjacking protection: 
    'django.middleware.clickjacking.XFrameOptionsMiddleware', 
) 

ROOT_URLCONF = 'DoneBox.urls' 

# Python dotted path to the WSGI application used by Django's runserver. 
WSGI_APPLICATION = 'DoneBox.wsgi.application' 

TEMPLATE_DIRS = (
    # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates". 
    # Always use forward slashes, even on Windows. 
    # Don't forget to use absolute paths, not relative paths. 
) 

INSTALLED_APPS = (
    'django.contrib.auth', 
    'django.contrib.contenttypes', 
    'django.contrib.sessions', 
    'django.contrib.sites', 
    'django.contrib.sitemaps' 
    'django.contrib.messages', 
    'django.contrib.staticfiles', 
    # Uncomment the next line to enable the admin: 
    'django.contrib.admin', 
    # Uncomment the next line to enable admin documentation: 
    'django.contrib.admindocs', 
    'main', 
    'basic.blog', 
    'contact_form', 
    'django-registration', 
    'django-ses', 
    'django-storages', 
    'dajax', 
    'dajaxice', 
    'addressbook', 
) 

# A sample logging configuration. The only tangible logging 
# performed by this configuration is to send an email to 
# the site admins on every HTTP 500 error when DEBUG=False. 
# See http://docs.djangoproject.com/en/dev/topics/logging for 
# more details on how to customize your logging configuration. 
LOGGING = { 
    'version': 1, 
    'disable_existing_loggers': False, 
    'filters': { 
     'require_debug_false': { 
      '()': 'django.utils.log.RequireDebugFalse' 
     } 
    }, 
    'handlers': { 
     'mail_admins': { 
      'level': 'ERROR', 
      'filters': ['require_debug_false'], 
      'class': 'django.utils.log.AdminEmailHandler' 
     } 
    }, 
    'loggers': { 
     'django.request': { 
      'handlers': ['mail_admins'], 
      'level': 'ERROR', 
      'propagate': True, 
     }, 
     'django.db.backends': { 
      'handlers': ['mail_admin'], 
      'level': 'DEBUG', 
      } 
     } 
    } 

ACCOUNT_ACTIVATION_DAYS = 2 
EMAIL_BACKEND = 'django_ses.SESBackend' 
DEFAULT_FILE_STORAGE = 'storages.backends.s3boto.S3BotoStorage' 
AWS_ACCESS_KEY_ID = '<snip>' 
AWS_SECRET_ACCESS_KEY ='<snip>' 
STATIC_FILES_BUCKET = "donebox-static" 
MEDIA_FILES_BUCKET = "donebox-media" 

和我requirements.txt：

BeautifulSoup==3.2.1 
Django==1.4.3 
MySQL-python==1.2.4 
argparse==1.2.1 
boto==2.7.0 
distribute==0.6.34 
django-dajax==0.9.2 
django-dajaxice==0.5.4.1 
django-piston==0.2.3 
django-registration==0.8 
django-ses==0.4.1 
django-storages==1.1.6 
django-tagging==0.3.1 
markup==0.2 
python-dateutil==2.1 
six==1.2.0 
tweepy==1.13 
wsgiref==0.1.2 

UPDATE：./manage.py --help现在给我一个堆栈跟踪。

Traceback (most recent call last): 
    File "./manage.py", line 10, in <module> 
    execute_from_command_line(sys.argv) 
    File "/Users/levicc00123/DoneBox/env/lib/python2.6/site-packages/django/core/management/__init__.py", line 443, in execute_from_comma 
nd_line 
    utility.execute() 
    File "/Users/levicc00123/DoneBox/env/lib/python2.6/site-packages/django/core/management/__init__.py", line 380, in execute 
    sys.stdout.write(self.main_help_text() + '\n') 
    File "/Users/levicc00123/DoneBox/env/lib/python2.6/site-packages/django/core/management/__init__.py", line 231, in main_help_text 
    for name, app in get_commands().iteritems(): 
    File "/Users/levicc00123/DoneBox/env/lib/python2.6/site-packages/django/core/management/__init__.py", line 101, in get_commands 
    apps = settings.INSTALLED_APPS 
    File "/Users/levicc00123/DoneBox/env/lib/python2.6/site-packages/django/utils/functional.py", line 184, in inner 
    self._setup() 
    File "/Users/levicc00123/DoneBox/env/lib/python2.6/site-packages/django/conf/__init__.py", line 42, in _setup 
    self._wrapped = Settings(settings_module) 
    File "/Users/levicc00123/DoneBox/env/lib/python2.6/site-packages/django/conf/__init__.py", line 93, in __init__ 
    mod = importlib.import_module(self.SETTINGS_MODULE) 
    File "/Users/levicc00123/DoneBox/env/lib/python2.6/site-packages/django/utils/importlib.py", line 35, in import_module 
    __import__(name) 
    File "/Users/levicc00123/DoneBox/DoneBox/settings.py", line 16, in <module> 
    'NAME': os.environ['RDS_DB_NAME'], 
    File "/Users/levicc00123/DoneBox/env/lib64/python2.6/UserDict.py", line 22, in __getitem__ 
    raise KeyError(key) 

有没有人有一些想法可以揭示这个奇怪的问题？感谢您的时间和考虑。

Answer 1

您应该同时拥有sqlall和sql管理命令。因为1.0两者都存在，it appears

$ ./manage.py help sqlall 
... 
Usage: manage.py sqlall [options] <appname appname ...> 

Prints the CREATE TABLE, custom SQL and CREATE INDEX SQL statements 
for the given model module name(s). 
... 

看到它在他们sql的命令：

$ ./manage.py --help | grep sql 
monitor (pid=16660): Starting change monitor. 
    sql 
    sqlall 
    sqlclear 
    sqlcustom 
    sqlflush 
    sqlindexes 
    sqlinitialdata 
    sqlreset 
    sqlsequencereset 
    sqlcreate 
    sqldiff 

您使用的是什么版本的Django的？ - 不，应该没关系

$ ./manage.py shell 
monitor (pid=16669): Starting change monitor. 
Python 2.7.3 (default, Jan 15 2013, 12:25:59) 
[GCC 4.1.2 20080704 (Red Hat 4.1.2-48)] on linux2 
Type "help", "copyright", "credits" or "license" for more information. 
(InteractiveConsole) 
>>> import django 
>>> django.VERSION 
(1, 4, 3, 'final', 0) 

正如评论指出的那样，你有一个KeyError异常：

File "/Users/levicc00123/DoneBox/DoneBox/settings.py", line 16, in <module> 
    'NAME': os.environ['RDS_DB_NAME'], 
    File "/Users/levicc00123/DoneBox/env/lib64/python2.6/UserDict.py", line 22, in __getitem__ 
    raise KeyError(key) 

要解决这个问题，你可以使用的os.environ的get方法，并提供一个默认值。例如：

os.environ.get('RDS_DB_NAME', "default value if not in environment")