FK as string from models as package fails with "UnboundLocalError: local variable 'key_cls' referenced before assignment"

[imomaliev]

Currently ForeignKey inferring fails with UnboundLocalError: local variable 'key_cls' referenced before assignment for cases when models is a python package, the to argument is a string that is used in this pattern app.Model and also there is some other bool const like null=True right after to.

[coveralls]

Pull Request Test Coverage Report for Build 681

• 13 of 13 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.5%) to 87.396%

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Totals
Change from base Build 665:	0.5%
Covered Lines:	631
Relevant Lines:	722

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💛 - Coveralls

[atodorov]

Overall looks very good, minor changes requested.

[atodorov]

@imomaliev is this by any chance the fix for #198 ? If so please add 'Fix #198' to one of the commit messages and GitHub will close it automatically.

[imomaliev]

@atodorov made requested changes and moved tests to input folder, models package is still required(see #229 (comment)). Regarding #198, looks like it is related and should probably fix it. But what OP is asking for is separate error code for cases when models are not loaded in astroid for some reason. I suggest closing until another issues related to this emerge. Should I add "fix #198" to commit message?

[prokher]

Just received the same error in 2.0.9.

[carlio]

Also here - #232

[zout]

Also posted in #232 but no response yet. But I've narrowed it down to OneToOne relations. On my github there is a project that will trigger the error. Hope it helps in finding out the root cause: https://github.com/zout/django-pylint-issue