[BUG][python] Errors in to_dict() with additionalProperties of type array

[robertschweizer]

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Description

The below OpenAPI spec leads to the following Python code block in ModelWithDict.to_dict():

    dict_property: Optional[Dict[str, conlist(StrictStr)]] = Field(None, alias="dictProperty")

    ...

        _field_dict_of_array = {}
        if self.dict_property:
            for _key in self.dict_property:
                if self.dict_property[_key]:
                    _field_dict_of_array[_key] = [
                        _item.to_dict() for _item in self.dict_property[_key]
                    ]
            _dict['dictProperty'] = _field_dict_of_array

This has two errors:

1. .to_dict() is called on the list items, which fails because they are strings.
2. if self.dict_property[_key]: wrongly skips dictionary keys where the value is an empty list.

openapi-generator version

7.0.1

OpenAPI declaration file content or url

openapi: 3.0.1
info:
  title: ""
  version: ""
paths: {}
components:
  schemas:
    ModelWithDict:
      type: object
      properties:
        dictProperty:
          type: object
          additionalProperties:
            type: array
            items:
              type: string

Generation Details

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