CODEWITHSUNDEEP
pythondjangodjango-migrations
r12
r12

Reputation: 1732

Django Polls Tutorial No changes detected in app polls

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 Choice

And 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 https://docs.djangoproject.com/en/1.7/intro/tutorial01/

Instead, I get

CommandError: Cannot find a migration matching 'polls' form app '0001'. Is it in INSTALLED_APPS?

Upvotes: 4

Views: 8199

Answers (2)

Adebayo A. Daniel
Adebayo A. Daniel

Reputation: 141

I encountered this same error only discover that VSCode was not on AutoSave mode being a new system/installation of VSCode. If the tutorial is followed correctly, the only instance of failure should be if the models.py in the 'polls' directly was not saved properly before running the migration.

Upvotes: 1

Will
Will

Reputation: 11500

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.

Upvotes: 5

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