How to monitor content updates or deletion in Django web applications

[Ram]

Hi,

We would like to add this feature in our Web application and capture the following events in log files:

1. If any image is deleted by any reason

2. Any content is deleted by any reason

Does Django have any libraries or functions to achieve this?

Best regards,

~Ram

[David Nugent]

The may not be enough context in your question but I imagine that the following link may take you to something that may work for you.

https://docs.djangoproject.com/en/4.2/topics/signals/

--
You received this message because you are subscribed to the Google Groups "Django users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to django-users...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CA%2BOi5F3GDxbL_3C20ygwE9yumUdLxDgZJRdLEuM9Wdm%2BeTyfEA%40mail.gmail.com.

[Ruby]

Hi there,

I don't know if there's a library for that, but I believe you can build what you need using the built-in Django Content-Type 

I have used it a few times and Django admin site also uses it under the hood.

To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CAE5VhgUYV_r5yA%3DSn3Q1Cyie8mG71W6w6E1N%3D6wcBdVSoLvQOQ%40mail.gmail.com.

[David Nugent]

Yes, certainly worth mentioning. ContentTypes is the secret sauce in django admin for sure and extremely useful for building generic functionality without hard coding to specific models. It’s like a through table in a relational db, where entities can be tracked. And it’s all automatic, built into every django app.

To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CAPUD46vdk9bV%3DjC6OZa_DMx8feBwWcdUJ23WhjE9O-0LfZQeDw%40mail.gmail.com.

[Timothy Myers]

I am also not sure of the scope of your question.  If you're asking about a

file deleted from the system by a method other than Django.  I use a trusted database

of files required with a hash and have a process (Django script) that runs and checks

both the presence of a file and its hash code.   

This notifies me of not only deletions but also changes to core items that I want to monitor by any 

method outside my control updates that maintain the trusted database and log dates who made the change.   

This also helped me monitor for duplicate pictures and files so that if someone loads a second copy of the 

same picture for a different page even with a different name it is noted by the hashcode.  So if one image is being

updated other pages can be reviewed as well to see if they should be updated at the same time.  Do we need both 

or should we change both images and update both pages? 

There is also a file with pages and keys to external use static items on a page.  Many are done systematically with

code and databases this picture, this text, and this format so the programmed changes also maintain much of the database 

updates.  The more pages added the more complex the maintenance without the help from the system as pages are 

added and deleted or updated.

This ensures that an image is not removed if removing a page and it is not the only user of the image.  This

helps prevent broken links or you can scan logs for 404 but then a user gets the message instead of prevention.

The signals are great for triggering events done through Django code and database actions.  But I don't think

it can detect that an image was substituted or deleted outside of its code base but OS commands or rouge programs.

It would be much harder to both change the file and update the hashcode.  Using signals and a trusted db might 

give you the best of both worlds