id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
28615	makemigrations doesn't generate any output for a model with CharField blank=False	Mikalai Radchuk	nobody	"It looks `makemigrations` is unable to generate migrations for a model that contains `CharField` with `blank=False` or with default value (which is `blank=False`).

I did manage to replicate it on Django 1.9, 1.10, 1.10.8, 1.11, 1.11.4, 1.11.5.
Python: 3.5.2, 3.6.1

The issue can be reproduced using the following steps:

1. Create an app with  `models.py` like this one:

    {{{
    from django.db import models


    class ExternalResourcePage(models.Model):
        # authors = models.CharField(max_length=256)
        publication_date = models.DateField()
        show_on_website = models.BooleanField(default=True)
    }}}

2. Run the `makemigrations` command. It will generate an initial migration file.
3. Uncomment the `authors` field.
4. Run the `makemigrations` command again. It will not generate a new migration file and will not give you any output. Exit code is `0`.

`makemigrations` works fine with `authors = models.CharField(max_length=256, blank=True)`

Expected result: `makemigrations` creates a migration file or fails with a traceback in case of any exceptions.
"	Bug	new	Database layer (models, ORM)	1.11	Normal				Unreviewed	0	0	0	0	0	0