Description

When an object property in the Swagger definition is defined as a date and swagger-codegen is called with --model-name-prefix it incorrectly maps the object to <Prefix>Date instead of a \DateTime object.

Swagger-codegen version

I am using swagger-codegen-cli-2.2.3.

Swagger declaration file content

---
swagger: '2.0'

info:
  title: 'Test Codegen Date'
  version: '1.0'
  
paths:
  '/foo':
    get:
      responses:
        200:
          description: 'Success'
          schema:
            type: object
            properties:
              some_date:
                type: string
                format: 'date'
              some_datetime:
                type: string
                format: 'date-time'

Command line used for generation

java -jar swagger-codegen-cli-2.2.3.jar generate -i test.yaml -l php --model-name-prefix Foo

Steps to reproduce

1. Save the above example YAML as test.yaml.
2. Run swagger-codegen without a prefix: swagger-codegen generate -i test.yaml -l php.
3. Open the generated file SwaggerClient-php/lib/Model/InlineResponse200.php.
4. See on line 57 that some_date from test.yaml is correctly mapped to \DateTime.
5. See on line 58 that some_datetime from test.yaml is correctly mapped to \DateTime.
6. Run swagger-codegen with a prefix: swagger-codegen generate -i test.yaml -l php --model-name-prefix Foo.
7. Open the (prefixed) generated file SwaggerClient-php/lib/Model/FooInlineResponse200.php.
8. See on line 57 that some_date is incorrectly mapped to FooDate where it should be \DateTime.
9. See on line 58 that some_datetime is correctly mapped to \DateTime even when using a prefix.

Related issues/PRs

Issue #4430 looks similar but it is regarding Java generated code, I haven't been able to find a similar issue for PHP.

Suggest a fix/enhancement

Unfortunately I was not able to find where in the code this is managed, but since it works correctly for format: 'date-time' it could be that it's an easy fix once the difference in handling prefixes between format: 'date-time' and format: 'date' is identified.