[PHP] [SymfonyServerCodegen] Bug: Validator ignore all annotation-asserts for Models

Description

subj.

Swagger-codegen version

2.4.1

Swagger declaration file content or url

definitions:

  FiltersRow:
    type: object
    properties:
      script:
        type: string
      arguments:
        type: string
        pattern: '^[a-z0-9-_ ]*$'

class FiltersRow 
{

    /**
     * @var string|null
     * @SerializedName("arguments")
     * @Assert\Type("string")
     * @Type("string")
     * @Assert\Regex("/^[a-z0-9-_ ]*$/")
     */
    protected $arguments;

But all @Assert* skipping because validator configured without AnnotationMapping and pass overwrited $asserts array to $this->validate() in controller.

Suggest a fix/enhancement

For enable validator annotation-asserts need:

1. replace in php-symfony/validation/SymfonyValidator.mustache

from $this->validator = Validation::createValidator();
to: $this->validator = (new ValidatorBuilder())->enableAnnotationMapping()->getValidator();

2. in php-symfony/api_input_validation.mustache need dont generate $asserts array and dont pass $asserts to $response = $this->validate(${{paramName}}); for models with annotaions-asserts only.

Maybe there is a more correct way. I do not know.

Inspect php-symfony/validation/SymfonyValidator.mustache and php-symfony/api_input_validation.mustache first, then compare the generated Symfony validator and controller behavior for the FiltersRow example. Confirm how annotation mapping and the generated $asserts argument interact. Done means model @Assert annotations are honored during validation without incorrectly overwriting or bypassing them.