overriding model property with more specific object type doesn't work

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#1,123 opened on Sep 17, 2024 1 comment 1 reaction 0 assignees View on GitHub

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Assessment

Difficulty: 4/5
Estimated time: 3-5 days
Newbie friendliness: 35/100

Issue type: Bug
Clarity: Mostly clear
Activity status: Stale
Tech stack: openapi, python
Domain: api, tooling

Research direction

Start by reproducing the issue with the OpenAPI spec linked in the report and inspect the generated models for BaseTask and SpecialTask. Trace how inherited and redeclared object properties are resolved; done means SpecialTask.result is generated with the SpecialTaskOutputData type rather than BaseTaskResult.

Written by the indexing model from the issue text.

Description

Describe the bug
When an object schema derives from another object schema using allOf, and redeclares a property that had an object type to use a different object type, the generated code uses the old type for that property.

OpenAPI Spec File
https://gist.github.com/eli-bl/d5658d6714e1c9ef544ef1fc8902960a

With this example, the type of SpecialTask.result in the generated code should be SpecialTaskOutputData. Instead it is being declared as BaseTaskResult, the same as BaseTask.result.

Desktop (please complete the following information):

OS: macOS 14.5
Python Version: 3.8.15
openapi-python-client version: 0.21.5

Dominant language: Python
Stars: 2k
Forks: 293
Avg merge: 34m
Merged PRs (30d): 1

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