Provide Model context for DoesNotExit

[spacemanspiff2007]

This provides the model as desired in #741.
What's missing is the primary key name and primary key value

How Has This Been Tested?

I ran only a small test locally

Checklist:

• My code follows the code style of this project.
• 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.
• All new and existing tests passed.

[lqmanh]

@long2ice,
Is there any chance that this PR gets merged, or this feature is considered at least?

[abondar]

@spacemanspiff2007 Hi!

Sorry this PR didn't receive feedback
If by any chance you are still willing to implement it - I would be glad to review it

Although we would need to rebase it on current develop and initialise exception in same way for other places where this exception is used

[coveralls]

Pull Request Test Coverage Report for Build 9344979693

Details

• 16 of 19 (84.21%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.03%) to 87.844%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
tortoise/exceptions.py	10	13	76.92%

Totals
Change from base Build 9340363157:	-0.03%
Covered Lines:	5779
Relevant Lines:	6481

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💛 - Coveralls

[spacemanspiff2007]

Like this?