Django Single ModelAdmin

A subclass of Django's ModelAdmin for use with models that are only meant to have one record. This is useful for things like site-wide settings.

Usage:

Register a model with SingleModelAdmin:

from django.contrib import admin
from singlemodeladmin import SingleModelAdmin
from my_app.models import MyModel

admin.site.register(MyModel, SingleModelAdmin)

You can also subclass SingleModelAdmin instead of Django's ModelAdmin, and it will work as expected:

from django.contrib import admin
from singlemodeladmin import SingleModelAdmin
from my_app.models import MyModel

class MyModelAdmin(SingleModelAdmin):
    list_display = ['my_field']

admin.site.register(MyModel, MyModelAdmin)

Installation:

pip install singlemodeladmin

Behavior:

• If there is only one object, the changelist will redirect to that object.
• If there are no objects, the changelist will redirect to the add form.
• If there are multiple objects, the changelist is displayed with a warning
• Attempting to add a new record when there is already one will result in a warning and a redirect away from the add form.

Supported Django Versions:

• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 2.0
• 2.1

Supported Python Versions:

• 2.6
• 2.7
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7