Multiple ModelAdmins/views for same model in Django admin

Michael Zippo

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How can I create more than one ModelAdmin for the same model, each customised differently and linked to different URLs?

Let"s say I have a Django model called Posts. By default, the admin view of this model will list all Post objects.

I know I can customise the list of objects displayed on the page in various ways by setting variables like list_display or overriding the queryset method in my ModelAdmin like so:

class MyPostAdmin(admin.ModelAdmin):
    list_display = ("title", "pub_date")

    def queryset(self, request):
        request_user = request.user
        return Post.objects.filter(author=request_user)

admin.site.register(MyPostAdmin, Post)

By default, this would be accessible at the URL /admin/myapp/post. However I would like to have multiple views/ModelAdmins of the same model. e.g /admin/myapp/post would list all post objects, and /admin/myapp/myposts would list all posts belonging to the user, and /admin/myapp/draftpost might list all posts that have not yet been published. (these are just examples, my actual use-case is more complex)

You cannot register more than one ModelAdmin for the same model (this results in an AlreadyRegistered exception). Ideally I"d like to achieve this without putting everything into a single ModelAdmin class and writing my own "urls" function to return a different queryset depending on the URL.

I"ve had a look at the Django source and I see functions like ModelAdmin.changelist_view that could be somehow included in my urls.py, but I"m not sure exactly how that would work.

Update: I"ve found one way of doing what I want (see below), but I"d still like to hear other ways of doing this.

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Multiple ModelAdmins/views for same model in Django admin del: Questions

__del__

How can I make a time delay in Python?

5 answers

I would like to know how to put a time delay in a Python script.

2973

Answer #1

import time
time.sleep(5)   # Delays for 5 seconds. You can also use a float value.

Here is another example where something is run approximately once a minute:

import time
while True:
    print("This prints once a minute.")
    time.sleep(60) # Delay for 1 minute (60 seconds).

2973

Answer #2

You can use the sleep() function in the time module. It can take a float argument for sub-second resolution.

from time import sleep
sleep(0.1) # Time in seconds

Multiple ModelAdmins/views for same model in Django admin del: Questions

__del__

How to delete a file or folder in Python?

5 answers

How do I delete a file or folder in Python?

2639

Answer #1

os.remove() removes a file.
os.rmdir() removes an empty directory.
shutil.rmtree() deletes a directory and all its contents.

Path objects from the Python 3.4+ pathlib module also expose these instance methods:

pathlib.Path.unlink() removes a file or symbolic link.
pathlib.Path.rmdir() removes an empty directory.

We hope this article has helped you to resolve the problem. Apart from Multiple ModelAdmins/views for same model in Django admin, check other __del__-related topics.

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Schneider Williams

Massachussetts | 2023-03-24

I was preparing for my coding interview, thanks for clarifying this - Multiple ModelAdmins/views for same model in Django admin in Python is not the simplest one. I just hope that will not emerge anymore

Frank Nickolson

Berlin | 2023-03-24

Maybe there are another answers? What Multiple ModelAdmins/views for same model in Django admin exactly means?. Will use it in my bachelor thesis

Davies Zelotti

Warsaw | 2023-03-24

Maybe there are another answers? What Multiple ModelAdmins/views for same model in Django admin exactly means?. I am just not quite sure it is the best method