'pattern' field is removed from configuration when generating 'Python Flask' server

[phoracek]

Description

pattern field is removed from swagger.yaml when generating 'Python Flask' server.

Swagger-codegen version

The one used by http://editor.swagger.io/

Swagger declaration file content or url

---
swagger: '2.0'
info:
  version: 1.0.0
  title: Test API
paths:
  /:
    post:
      parameters:
        - in: body
          name: data
          schema:
            $ref: '#/definitions/Test'
      responses:
        200:
          description: OK
definitions:
  Test:
    type: string
    pattern: '^[01]{1,9}$'

Command line used for generation

http://editor.swagger.io/ was used.

Steps to reproduce

Paste mention config to http://editor.swagger.io/ and let it generate 'Python Flask' server code. In the generated code, pattern field is missing in swagger.yaml.

Related issues

Maybe it is related to #2794. Anyways, I see no reason why to strip fields when generating.

Suggest a Fix

Keep pattern field.

[varunmittal91]

It is also ignoring validation parameters for integer
definition:
somefield:
type: integer
minimum: 1
maximum: 100

Produces:
somefield:
type: "integer"

[wing328]

v2.2.3 has been released. Please also try the current master (2.3.0)

If it's still an issue, I can show some good starting points to fix it (e.g. using the model templates from Python client)

[wing328]

Closing this as there's no update.