[csharp-netcore] Update to fix the issue for client not generated when modelOneOf of array of string

[prajon84]

This PR address fixes the issue for csharp-netcore generator in which clients were not being generated if format: string is not specified.

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@wing328 @devhl-labs @Blackclaws @jafin @jfeltesse-mdsol @bgong-mdsol @ykitamura-mdsol

[jafin]

Hi @prajon84 Are you able to amend the example to omit the type: string to confirm this fix?
From the PR I can't easily see how the change fixes the issue being described.
All I see is a change in the casing of the method name from being TitleCase to to not Titlecase ?

[prajon84]

@jafin : Yeah I do not know why in the e.g. in the code base only TitleCase changed to Titlecase. But, I have tried locally.

For. e.g.

1. for openapi spec without format: string

openapi: 3.0.3
info:
  title: C# Object with oneof array of string
  version: v1
paths:
  '/hello':
    get:
      responses:
        '200':
          description: returns polymorphic property
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PolymorphicProperty'

components:
  schemas:
    PolymorphicProperty:
      description: Comparison information
      oneOf:
        - type: boolean
        - type: string
        - type: object
        - type: array
          items:
            $ref: '#/components/schemas/StringArrayItem'
    StringArrayItem:
      type: string

The client got generated properly which was the problem before.

And, the client build too:

2. for openapi spec with format: string

openapi: 3.0.3
info:
  title: C# Object with oneof array of string
  version: v1
paths:
  '/hello':
    get:
      responses:
        '200':
          description: returns polymorphic property
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PolymorphicProperty'

components:
  schemas:
    PolymorphicProperty:
      description: Comparison information
      oneOf:
        - type: boolean
        - type: string
        - type: object
        - type: array
          items:
            $ref: '#/components/schemas/StringArrayItem'
    StringArrayItem:
      type: string
      format: string

It generates and builds perfectly too:

[ykitamura-mdsol]

We just followed the same pattern as in this file:

openapi-generator/modules/openapi-generator/src/main/resources/csharp-netcore/libraries/generichost/modelGeneric.mustache

Line 35 in 2d73a4d

{{#lambda.titlecase}}{{baseType}}{{#isArray}}{{{dataFormat}}}{{/isArray}}{{/lambda.titlecase}} = {{#lambda.camelcase_param}}{{baseType}}{{#isArray}}{{{dataFormat}}}{{/isArray}}{{/lambda.camelcase_param}};

[prajon84]

Can @jafin @wing328 review and merge this please 🙏 ?