Add option for setting `history_user` automatically.

[treyhunner]

One implementation: dekoza@ca9aa8d

[matklad]

+1 for this. It will be helpful when working with multiple objects at once, e.g. in formsets.

[treyhunner]

I don't have a use for this feature myself, but I'm fine with adding an implementation to django-simple-history if someone wants to write it up, add tests, and document it.

[mauricioabreu]

Actually that implementation works.
Could that feature be merged? I think this feature is useful because it removes some boilerplate in models, views and forms to save the user who changed the object.

I actually did a monkey patch to get it working here but can I propose a PR to this? Is this viable yet?

[mauricioabreu]

Also I would like to know it that is thread safe. What do you think @treyhunner ?

[treyhunner]

I don't like the suggested implementation because a changed_by field is added which seems to be the same as history_user in functionality. This feature seems like it should be allowable without monkeypatching but also not forced on users that don't want it.

[mauricioabreu]

I got it and I agree with you.
I am going to write a better solution than dekoza did and I will create a PR.
Thanks for your answer.

[treyhunner]

@mauricioabreu great. Feel free to open the pull request before it's merge-ready if you'd like early feedback on it.

[macro1]

Resolved in #108. You can find information about the new functionality in the Quickstart portion of the docs.