我不明白我做错了什么,或者我可以做的不一样,甚至是什么信息。
编辑清楚:
我希望有些像本教程中的打印输出:
code>民意调查的迁移: 0001_initial.py: - 创建模型问题 - 创建模型选择然后在本教程中,当它请求我输入命令 python manage.py sqlmigrate polls 0001 时,我得到一些打印输出,像显示的(这是相当长的)。我正在 docs.djangoproject/en/ 1.7 / intro / tutorial01 /
相反,我得到
CommandError:找不到迁移匹配'polls'表单应用程序'0001'。是否在INSTALLED_APPS?解决方案
问题最终是models.py wasn' t在迁移前填写。它应该是这样的。
models.py 文件:
$ $ $ $ $ $ $ $ $ $ $ $ $ $ class问题(models.Model): question_text = models.CharField(max_length = 200) pub_date = models .DateTimeField('date published') class Choice(models.Model): question = models.ForeignKey(Question) choice_text = models.CharField max_length = 200) vote = models.IntegerField(default = 0)还要确定'polls.py'列在'settings.py'文件的'INSTALLED_APPS'中。
I'm going through the Django Polls tutorial, and I'm trying the command "python manage.py makemigrations polls", and I keep getting the message "No changes detected in app 'polls'"
I don't understand what I'm doing wrong or how I could do it differently, or what the message even means.
EDIT for clarity:
I expect something somewhat like the printout on the tutorial:
Migrations for 'polls': 0001_initial.py: - Create model Question - Create model ChoiceAnd then later in the tutorial, when it requests I type the command python manage.py sqlmigrate polls 0001, that I get some sort of printout like the one shown (which is rather long). I'm working off the tutorial at docs.djangoproject/en/1.7/intro/tutorial01/
Instead, I get
CommandError: Cannot find a migration matching 'polls' form app '0001'. Is it in INSTALLED_APPS?解决方案
The issue ended up being that models.py wasn't filled out before the migration. It should look like this.
models.py file:
from django.db import models class Question(models.Model): question_text = models.CharField(max_length=200) pub_date = models.DateTimeField('date published') class Choice(models.Model): question = models.ForeignKey(Question) choice_text = models.CharField(max_length=200) votes = models.IntegerField(default=0)Also be sure that 'polls' is listed in the 'INSTALLED_APPS' of your 'settings.py' file.
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