Automatically write `admin.py` using `admin_generator` command of `django-extensions`

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What i want to do:

If there are many tables, it will be difficult to write to admin.py.

I want you it to be done automatically.

⇣

If we use the admin_generator command of the library called django-extensions, it can be done automatically.

It really does his job regarding the contents of models.py.

What is `django-extension`?

django-extensions extends the functionality of manage.py, and there are various other commands.

Install

$ pip install django-extensions

Add in to settings.py

pj_name/settings.py

.
.
INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',

    'django_extensions', # <- 追記
]
.
.

Execute

Overwrite the output result in admin.py.

$APP contains the application name created with $python manage.py startapp xxx.

$ python manage.py admin_generator ＄APP > $APP/admin.py

Result

For example:

This class:

models.py

...
class Users(models.Model):
    user_name = models.CharField(max_length=255)
    last_name = models.CharField(max_length=255)
    first_name = models.CharField(max_length=255)
    email = models.CharField(max_length=255)
    created_at = models.DateTimeField()
    updated_at = models.DateTimeField()
    del_flg = models.IntegerField()

    class Meta:
        managed = False
        db_table = 'users'
...

Will be looking like this:

admin.py

...
@admin.register(Users)
class UsersAdmin(admin.ModelAdmin):
    list_display = (
        'id',
        'user_name',
        'last_name',
        'first_name',
        'email',
        'created_at',
        'updated_at',
        'del_flg',
    )
    list_filter = ('created_at', 'updated_at')
    date_hierarchy = 'created_at'
...

Create user to login on management screen

$ python manage.py createsuperuser

Username (leave blank to use 'your_home_dir'): <- any name as you wish
Email address: 
Password: 
Password (again): 
Superuser created successfully.

Start the local server