I have an abstract class for automatically adding timestamps to my models that have auto_now or auto_now_add. Can I patch Django admin so they show up, register some setting, or do something else so that all models that inherit from them will have those fields show up in a read only way in the admin?
#Abstract Class Admin Settings
viral spruce
frail cedar
I don't think you need to do anything special to have those fields show up.
viral spruce
I don't think you need to do anything special to have those fields show up.
From experimentation and Googling, if you have a field with auto_now or auto_now_add they won't show up in the admin because the system treats fields with those attributes as having blank=True which means they won't show up in the admin
frail cedar
ah ok that has nothing to do with the base class, then
just add the field name to the list_display attribute in the admin class
class Base(models.Model):
created_at = models.DateTimeField(auto_now=True)
class Meta:
abstract = True
class Question(Base):
question_text = models.CharField(max_length=200, db_comment="I hold questions")
...
I can't create admin settings for my version of Base
frail cedar
class QuestionAdmin(admin.ModelAdmin):
...
list_display = [
"question_text",
"created_at",
``` ...No idea what that means, sorry
viral spruce
I can't do
@admin.register(Base)
class BaseAdmin(admin.ModelAdmin):
...
or any variation of this
frail cedar
what do you mean by "can't"? Is your keyboard broken? 🙂
viral spruce
Python throws an error 🙂
frail cedar
why not post the error message, and maybe I can figure out what's wrong
viral spruce
django.core.exceptions.ImproperlyConfigured: The model TimestampedModel is abstract, so it cannot be registered with admin.
class TimestampedModel(models.Model):
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
class Meta:
abstract = True
ah, I don't use abstract models, so I don't know 😐
looks like adding the field to the admins for the child classes will work though.
viral spruce
Yea but then I have to add it to everyone
codegen probably is the fastest way to do this though without patching Django itself
frail cedar
well you can always make a base admin class that adds that to the list_display, and then all the other admin classes inherit from it
viral spruce
well you can always make a base *admin* class that adds that to the list_display...
will try this out. New to Django so not sure of how all of this works
frail cedar
it's pretty complicated 😕
viral spruce
I've slogged through worse lmao