Enum as component/schemas

[demonking]

Here a small Example

openapi: "3.0.0"
info:
  version: 1.0.0
  title: Swagger Petstore
  license:
    name: MIT
servers:
  - url: http://petstore.swagger.io/v1
paths:
  /pets:
    get:
      summary: List all pets
      operationId: listPets
      tags:
        - pets
      parameters:
        - name: limit
          in: query
          description: How many items to return at one time (max 100)
          required: false
          schema:
            type: integer
            format: int32
      responses:
        '200':
          description: A paged array of pets
          headers:
            x-next:
              description: A link to the next page of responses
              schema:
                type: string
          content:
            application/json:    
              schema:
                $ref: "#/components/schemas/Pets"
        default:
          description: unexpected error
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Error"
    post:
      summary: Create a pet
      operationId: createPets
      tags:
        - pets
      responses:
        '201':
          description: Null response
        default:
          description: unexpected error
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Error"
  /pets/{petId}:
    get:
      summary: Info for a specific pet
      operationId: showPetById
      tags:
        - pets
      parameters:
        - name: petId
          in: path
          required: true
          description: The id of the pet to retrieve
          schema:
            type: string
      responses:
        '200':
          description: Expected response to a valid request
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Pet"
        default:
          description: unexpected error
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Error"
components:
  schemas:

    Pet:
      type: object
      required:
        - id
        - name
      properties:
        id:
          type: integer
          format: int64
        name:
          type: string
        tag:
          type: string
        color:
          $ref: "#/components/schemas/Color"
    Color:
       type: string
       enum: 
         - red
         - blue
         - yellow            
    Pets:
      type: array
      items:
        $ref: "#/components/schemas/Pet"
    Error:
      type: object
      required:
        - code
        - message
      properties:
        code:
          type: integer
          format: int32
        message:
          type: string

common/models/Pet:

<?php

namespace common\models;

/**
 *
 *
 * @property int $id
 * @property string $name
 * @property string $tag
 * @property Color $color
 */
class Pet extends \yii\db\ActiveRecord
{
    public static function tableName()
    {
        return '{{%pets}}';
    }

    public function rules()
    {
        return [
            [['name', 'tag'], 'trim'],
            [['id', 'name'], 'required'],
            [['name', 'tag'], 'string'],
            // TODO define more concreate validation rules!
            [['id','color'], 'safe'],
        ];
    }

    public function getColor()
    {
        return $this->hasOne(Color::class, ['id' => 'color_id']);
    }

}

The Color Model is missing ;)

[cebe]

The Color Model is missing ;)

Colors schema is of type string, how can it be a model?

[demonking]

My fault. :)
Then it should be a string instead a class?

    public function getColor()
    {
        return $this->hasOne(Color::class, ['id' => 'color_id']);
    }

[cebe]

Your example spec does not include the Pet schema, so it is unclear how that relation is generated.
Can you show the full spec that produces this output?

[demonking]

Have pasted the whole Example :)

[cebe]

should be solved in todays released 2.0-alpha version.

Install via composer require cebe/yii2-openapi:^2.0@alpha