Where to put a custom id property? about django-styleguide

[RadoRado]

@masdot 👋

Can you expand a little bit more - perhaps with an example of what you are trying to achieve, so I can help you better?

Cheers!

[masdot]

@RadoRado 🤝

Yes, of course! Sorry if I have expressed myself inaccurately.

I need some kind of custom ID or numbering for my project. This needs to be built according to the scheme <year><ascending number>.

This numbering is based on the records, which means that the creation date of the record is the basis for generating the numbering. For example, the records in 2020 are

20200001 - 202100563.

and in 2021

20210001, 20210002, ...

However, I see it somewhat critical to solve this numbering via a
@Property since this probably affects the scalability.

[RadoRado]

@masdot Sorry for the late answer! Catching up with the issues.

This sounds more like a database field and not a property.

And in order to generate sequential numbers, you might want to look into some kind of table locking or using F expressions ( https://docs.djangoproject.com/en/3.2/ref/models/expressions/#f-expressions )

Especially if you want to search or sort by those ids.

If you need them just for visual purposes, then a @property would do.

Hope that helps!

[masdot]

Thank you! 🙏