Add bulk_update_with_history

[jihoon796]

I have yet to add tests or documentation. Once a maintainer gives the green light, I'll finish writing all of the documentation, although I will need help writing tests.

Description

Added bulk_update_with_history, using Django 2.2's bulk_update feature.

Related Issue

#528

Motivation and Context

#528

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have run the make format command to format my code
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• I have added my name and/or github handle to AUTHORS.rst
• I have added my change to CHANGES.rst
• All new and existing tests passed.

[rossmechanic]

This looks good to me! Thanks for doing this. Want to add docs and tests? I would go off of the tests for bulk_create_with_history for reference on how to test this

[rossmechanic]

Also, since the codebase still technically supports Django 1.11, 2.0, and 2.1, just have the tests skip if the django version is any of those. I'm going to remove support for them before the next release.

[jihoon796]

@rossmechanic ready for review.

I use django-simple-history frequently, so happy to contribute.

[rossmechanic]

@jihoon796 looks good! Just make the changes to the docs. Also please update the CHANGEs.rst file with

Unreleased
------------
- Added `bulk_update_with_history` utility function (gh-650)

Will approve and merge once that's done. Thanks!

[rossmechanic]

Suggested change

	~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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[rossmechanic]

@jihoon796 also, I just looked at the travis build https://travis-ci.org/github/treyhunner/django-simple-history. Looks like you need to run make format as well. Not sure why travis isn't linking with github checks 🤷

[jihoon796]

@rossmechanic updated the docs as requested and ran make docs and make format (this time I double-checked).

[rossmechanic]

https://travis-ci.org/github/treyhunner/django-simple-history/jobs/679104605
@jihoon796 looks like there's a trailing whitespace error

[jihoon796]

@rossmechanic got it - fixed the trailing whitespace error, so it should pass all checks now.

When is the next planned release? Would love to use it as soon as possible.

[rossmechanic]

Cool. Looks like it's passing everything.

I wasn't planning to do a release for another month (and get some changes in before doing a 3.0 release), which is why I said don't worry about backward compatibility. However, if you want to update this PR so that it's still compatible with django versions 1.11, 2.0 and 2.1, then I'd be happy to get this PR and #636 merged and released this weekend. The other options is to pip install this merge commit directly. What do you want to do?

[rossmechanic]

for reference, to make this backward compatible you just need to do the following within your bulk_update_with_history function:

if django.VERSION < (2, 2, ):
     raise NotImplementedError("bulk_update_with_history is only available on Django versions 2.2 and later")

[codecov-io]

Codecov Report

Merging #650 into master will decrease coverage by 0.62%.
The diff coverage is 50.00%.

@@            Coverage Diff             @@
##           master     #650      +/-   ##
==========================================
- Coverage   97.70%   97.08%   -0.63%     
==========================================
  Files          17       17              
  Lines         914      925      +11     
  Branches      136      138       +2     
==========================================
+ Hits          893      898       +5     
- Misses          9       15       +6     
  Partials       12       12              

Impacted Files	Coverage Δ
simple_history/utils.py	88.67% <25.00%> (-11.33%)	⬇️
simple_history/manager.py	97.29% <100.00%> (+0.11%)	⬆️

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[jihoon796]

@rossmechanic Would be great to get the release out as early as possible. I've updated this PR (added your snippet) so that it's still compatible with Django versions 1.11, 2.0 and 2.1. Ran the same tests as earlier as well and everything looks good.

Also - thanks for the quick feedback!

[rossmechanic]

Thanks @jihoon796 ! I think I should update #635 and get it merged, but I'll release as soon as that is done