From f7c2b5b58f75f20bf50721ecc785465ad3e215c5 Mon Sep 17 00:00:00 2001
From: Sohel Ahmed Mesaniya <sam.wankaner@gmail.com>
Date: Tue, 28 May 2024 14:18:53 +0530
Subject: [PATCH 1/4] Initial commit to create PR

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index df87e47a..86e77ce8 100644
--- a/README.md
+++ b/README.md
@@ -564,3 +564,4 @@ Professional support, consulting as well as software development services are av
 https://www.cebe.cc/en/contact
 
 Development of this library is sponsored by [cebe.:cloud: "Your Professional Deployment Platform"](https://cebe.cloud).
+

From f41f0fa4eade6896fa25a0a546454ae4b111118d Mon Sep 17 00:00:00 2001
From: Sohel Ahmed Mesaniya <sam.wankaner@gmail.com>
Date: Tue, 28 May 2024 14:22:03 +0530
Subject: [PATCH 2/4] Undo initial commit

---
 README.md | 1 -
 1 file changed, 1 deletion(-)

diff --git a/README.md b/README.md
index 86e77ce8..df87e47a 100644
--- a/README.md
+++ b/README.md
@@ -564,4 +564,3 @@ Professional support, consulting as well as software development services are av
 https://www.cebe.cc/en/contact
 
 Development of this library is sponsored by [cebe.:cloud: "Your Professional Deployment Platform"](https://cebe.cloud).
-

From 51875cb57d7fc8905c5acf7af892759968f4ce05 Mon Sep 17 00:00:00 2001
From: Sohel Ahmed Mesaniya <sam.wankaner@gmail.com>
Date: Tue, 28 May 2024 14:34:20 +0530
Subject: [PATCH 3/4] Add docs for
 https://github.com/cebe/yii2-openapi/issues/173

---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README.md b/README.md
index b04e500f..711b2a1c 100644
--- a/README.md
+++ b/README.md
@@ -182,6 +182,8 @@ Such values are not allowed:
    - `int null default null after low_price` (null and default will be handled by `nullable` and `default` keys respectively)
    - MEDIUMINT(10) UNSIGNED ZEROFILL NULL DEFAULT '7' COMMENT 'comment' AFTER `seti`, ADD INDEX `t` (`w`)
 
+If `enum` and `x-db-type` both are provided then for database column schema (migrations), only `x-db-type` will be considered ignoring `enum`.
+
 ### `x-indexes`
 
 Specify table indexes
@@ -446,6 +448,8 @@ It works on all 3 DB: MySQL, MariaDb and PgSQL.
 
 Note: Changes in enum values are not very simple. For Mysql and Mariadb, migrations will be generated but in many cases custom modification in it are required. For Pgsql migrations for change in enum values will not be generated. It should be handled manually.
 
+It will be ignored for database column schema (migrations) if `x-db-type` is provided.
+
 ## Handling of `numeric` (#numeric, #MariaDb)
 
 precision-default = 10

From 949a32faaf719f1ac9e3fed0fc58905578a68cfa Mon Sep 17 00:00:00 2001
From: Sohel Ahmed Mesaniya <sam.wankaner@gmail.com>
Date: Tue, 28 May 2024 17:09:43 +0530
Subject: [PATCH 4/4] Fix https://github.com/cebe/yii2-openapi/issues/175

---
 src/lib/openapi/ResponseSchema.php            |   3 +
 .../index.php                                 |  14 ++
 .../index.yaml                                | 113 ++++++++++++++
 .../pgsql/config/urls.rest.php                |  10 ++
 .../pgsql/controllers/AccountController.php   |  20 +++
 .../controllers/base/AccountController.php    |  32 ++++
 .../m200000_000000_create_table_accounts.php  |  21 +++
 .../m200000_000001_create_table_contacts.php  |  24 +++
 ...00_000002_create_table_payment_methods.php |  22 +++
 .../pgsql/models/Account.php                  |  10 ++
 .../pgsql/models/AccountFaker.php             |  42 +++++
 .../pgsql/models/BaseModelFaker.php           | 144 ++++++++++++++++++
 .../pgsql/models/Contact.php                  |  10 ++
 .../pgsql/models/ContactFaker.php             |  52 +++++++
 .../pgsql/models/PaymentMethod.php            |  10 ++
 .../pgsql/models/PaymentMethodFaker.php       |  40 +++++
 .../pgsql/models/base/Account.php             |  29 ++++
 .../pgsql/models/base/Contact.php             |  39 +++++
 .../pgsql/models/base/PaymentMethod.php       |  28 ++++
 tests/unit/IssueFixTest.php                   |  15 ++
 20 files changed, 678 insertions(+)
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/index.php
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/index.yaml
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/config/urls.rest.php
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/controllers/AccountController.php
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/controllers/base/AccountController.php
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/migrations_pgsql_db/m200000_000000_create_table_accounts.php
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/migrations_pgsql_db/m200000_000001_create_table_contacts.php
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/migrations_pgsql_db/m200000_000002_create_table_payment_methods.php
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/Account.php
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/AccountFaker.php
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/BaseModelFaker.php
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/Contact.php
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/ContactFaker.php
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/PaymentMethod.php
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/PaymentMethodFaker.php
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/base/Account.php
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/base/Contact.php
 create mode 100644 tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/base/PaymentMethod.php

diff --git a/src/lib/openapi/ResponseSchema.php b/src/lib/openapi/ResponseSchema.php
index f64bd8de..a0274449 100644
--- a/src/lib/openapi/ResponseSchema.php
+++ b/src/lib/openapi/ResponseSchema.php
@@ -49,6 +49,9 @@ protected static function schemaNameByRef($schemaOrReference): ?string
 //        if($schemaOrReference instanceof Reference){
 //            $schemaOrReference->resolve();
 //        }
+        if (!$schemaOrReference instanceof Reference) { # https://github.com/cebe/yii2-openapi/issues/175
+            return null;
+        }
         $ref = $schemaOrReference->getJsonReference()->getJsonPointer()->getPointer();
         $name = strpos($ref, '/components/schemas/') === 0 ? substr($ref, 20) : null;
         return str_replace(JunctionSchemas::PREFIX, '', $name);
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/index.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/index.php
new file mode 100644
index 00000000..3ccbc836
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/index.php
@@ -0,0 +1,14 @@
+<?php
+
+return [
+    'openApiPath' => '@specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/index.yaml',
+    'generateUrls' => true,
+    'generateModels' => true,
+    'excludeModels' => [
+        'Error',
+    ],
+    'generateControllers' => true,
+    'generateMigrations' => true,
+    'generateModelFaker' => true, // `generateModels` must be `true` in orde to use `generateModelFaker` as `true`
+];
+
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/index.yaml b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/index.yaml
new file mode 100644
index 00000000..429b59ad
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/index.yaml
@@ -0,0 +1,113 @@
+
+openapi: 3.0.3
+
+info:
+  title: 'Proxy-Service'
+  version: 1.0.0
+
+components:
+
+  responses:
+
+    AccountExpanded:
+      description: 'Returns one account by ID with additional information.'
+      content:
+        application/vnd.api+json:
+          schema:
+            type: object
+            required:
+              - status
+              - Account
+            properties:
+              status:
+                type: string
+                enum:
+                  - valid
+                  - invalid
+              Account:
+                allOf:
+                  - $ref: '#/components/schemas/Account'
+                  - type: object
+                    properties:
+                      invoiceContact:
+                        $ref: "#/components/schemas/Contact"
+                      paymentMethod:
+                        $ref: "#/components/schemas/PaymentMethod"
+              errors:
+                type: object
+                description: only exists if status = invalid
+
+  schemas:
+
+    Account:
+      description: Account
+      type: object
+      required:
+        - id
+        - name
+      properties:
+        id:
+          type: integer
+          readOnly: true
+        name:
+          description: account name
+          type: string
+          maxLength: 128
+        paymentMethodName:
+          type: string
+
+    Contact:
+      description: Contact
+      type: object
+      required:
+        - id
+        - account
+      properties:
+        id:
+          type: integer
+          readOnly: true
+        account:
+          $ref: '#/components/schemas/Account'
+        active:
+          type: boolean
+          default: false
+        nickname:
+          type: string
+
+    PaymentMethod:
+      type: object
+      description: PaymentMethod
+      x-indexes:
+        - 'unique:name'
+      required:
+        - id
+        - name
+      properties:
+        id:
+          type: integer
+          readOnly: true
+        name:
+          type: string
+          example: Bank transfer within 14 days
+          maxLength: 150
+          x-faker: false
+
+paths:
+
+  '/account/{id}':
+    parameters:
+      - name: Id
+        in: path
+        description: ID of Account
+        required: true
+        schema:
+          type: integer
+
+    get:
+      operationId: getAccount
+      summary: Account information
+      responses:
+        '200':
+          $ref: '#/components/responses/AccountExpanded'
+        '404':
+          description: Account with id = "\<account_id\>" was not found.
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/config/urls.rest.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/config/urls.rest.php
new file mode 100644
index 00000000..d448d409
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/config/urls.rest.php
@@ -0,0 +1,10 @@
+<?php
+/**
+ * OpenAPI UrlRules
+ *
+ * This file is auto generated.
+ */
+return [
+    'GET account/<id>' => 'account/view',
+    'account/<id>' => 'account/options',
+];
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/controllers/AccountController.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/controllers/AccountController.php
new file mode 100644
index 00000000..b4044b8f
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/controllers/AccountController.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace app\controllers;
+
+class AccountController extends \app\controllers\base\AccountController
+{
+
+    public function checkAccess($action, $model = null, $params = [])
+    {
+        //TODO implement checkAccess
+    }
+
+    public function actionView($id)
+    {
+        //TODO implement actionView
+    }
+
+
+}
+
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/controllers/base/AccountController.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/controllers/base/AccountController.php
new file mode 100644
index 00000000..2c96fda8
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/controllers/base/AccountController.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace app\controllers\base;
+
+abstract class AccountController extends \yii\rest\Controller
+{
+    public function actions()
+    {
+        return [
+            'options' => [
+                'class' => \yii\rest\OptionsAction::class,
+            ],
+        ];
+    }
+
+    /**
+     * Checks the privilege of the current user.
+     *
+     * This method checks whether the current user has the privilege
+     * to run the specified action against the specified data model.
+     * If the user does not have access, a [[ForbiddenHttpException]] should be thrown.
+     *
+     * @param string $action the ID of the action to be executed
+     * @param object $model the model to be accessed. If null, it means no specific model is being accessed.
+     * @param array $params additional parameters
+     * @throws \yii\web\ForbiddenHttpException if the user does not have access
+     */
+    abstract public function checkAccess($action, $model = null, $params = []);
+
+    abstract public function actionView($id);
+
+}
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/migrations_pgsql_db/m200000_000000_create_table_accounts.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/migrations_pgsql_db/m200000_000000_create_table_accounts.php
new file mode 100644
index 00000000..1606f2fc
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/migrations_pgsql_db/m200000_000000_create_table_accounts.php
@@ -0,0 +1,21 @@
+<?php
+
+/**
+ * Table for Account
+ */
+class m200000_000000_create_table_accounts extends \yii\db\Migration
+{
+    public function up()
+    {
+        $this->createTable('{{%accounts}}', [
+            'id' => $this->primaryKey(),
+            'name' => $this->string(128)->notNull(),
+            'paymentMethodName' => $this->text()->null(),
+        ]);
+    }
+
+    public function down()
+    {
+        $this->dropTable('{{%accounts}}');
+    }
+}
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/migrations_pgsql_db/m200000_000001_create_table_contacts.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/migrations_pgsql_db/m200000_000001_create_table_contacts.php
new file mode 100644
index 00000000..5fcda9dc
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/migrations_pgsql_db/m200000_000001_create_table_contacts.php
@@ -0,0 +1,24 @@
+<?php
+
+/**
+ * Table for Contact
+ */
+class m200000_000001_create_table_contacts extends \yii\db\Migration
+{
+    public function up()
+    {
+        $this->createTable('{{%contacts}}', [
+            'id' => $this->primaryKey(),
+            'account_id' => $this->integer()->notNull(),
+            'active' => $this->boolean()->null()->defaultValue(false),
+            'nickname' => $this->text()->null(),
+        ]);
+        $this->addForeignKey('fk_contacts_account_id_accounts_id', '{{%contacts}}', 'account_id', '{{%accounts}}', 'id');
+    }
+
+    public function down()
+    {
+        $this->dropForeignKey('fk_contacts_account_id_accounts_id', '{{%contacts}}');
+        $this->dropTable('{{%contacts}}');
+    }
+}
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/migrations_pgsql_db/m200000_000002_create_table_payment_methods.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/migrations_pgsql_db/m200000_000002_create_table_payment_methods.php
new file mode 100644
index 00000000..b6be74a0
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/migrations_pgsql_db/m200000_000002_create_table_payment_methods.php
@@ -0,0 +1,22 @@
+<?php
+
+/**
+ * Table for PaymentMethod
+ */
+class m200000_000002_create_table_payment_methods extends \yii\db\Migration
+{
+    public function up()
+    {
+        $this->createTable('{{%payment_methods}}', [
+            'id' => $this->primaryKey(),
+            'name' => $this->string(150)->notNull(),
+        ]);
+        $this->createIndex('payment_methods_name_key', '{{%payment_methods}}', 'name', true);
+    }
+
+    public function down()
+    {
+        $this->dropIndex('payment_methods_name_key', '{{%payment_methods}}');
+        $this->dropTable('{{%payment_methods}}');
+    }
+}
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/Account.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/Account.php
new file mode 100644
index 00000000..2d25d7fc
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/Account.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace app\models;
+
+class Account extends \app\models\base\Account
+{
+
+
+}
+
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/AccountFaker.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/AccountFaker.php
new file mode 100644
index 00000000..0b5284d5
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/AccountFaker.php
@@ -0,0 +1,42 @@
+<?php
+namespace app\models;
+
+use Faker\UniqueGenerator;
+
+/**
+ * Fake data generator for Account
+ * @method static Account makeOne($attributes = [], ?UniqueGenerator $uniqueFaker = null);
+ * @method static Account saveOne($attributes = [], ?UniqueGenerator $uniqueFaker = null);
+ * @method static Account[] make(int $number, $commonAttributes = [], ?UniqueGenerator $uniqueFaker = null)
+ * @method static Account[] save(int $number, $commonAttributes = [], ?UniqueGenerator $uniqueFaker = null)
+ */
+class AccountFaker extends BaseModelFaker
+{
+
+    /**
+     * @param array|callable $attributes
+     * @return Account|\yii\db\ActiveRecord
+     * @example
+     *  $model = (new PostFaker())->generateModels(['author_id' => 1]);
+     *  $model = (new PostFaker())->generateModels(function($model, $faker, $uniqueFaker) {
+     *            $model->scenario = 'create';
+     *            $model->author_id = 1;
+     *            return $model;
+     *  });
+    **/
+    public function generateModel($attributes = [])
+    {
+        $faker = $this->faker;
+        $uniqueFaker = $this->uniqueFaker;
+        $model = new Account();
+        //$model->id = $uniqueFaker->numberBetween(0, 1000000);
+        $model->name = substr($faker->text(128), 0, 128);
+        $model->paymentMethodName = $faker->sentence;
+        if (!is_callable($attributes)) {
+            $model->setAttributes($attributes, false);
+        } else {
+            $model = $attributes($model, $faker, $uniqueFaker);
+        }
+        return $model;
+    }
+}
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/BaseModelFaker.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/BaseModelFaker.php
new file mode 100644
index 00000000..c367fbb4
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/BaseModelFaker.php
@@ -0,0 +1,144 @@
+<?php
+
+namespace app\models;
+
+use Faker\Factory as FakerFactory;
+use Faker\Generator;
+use Faker\UniqueGenerator;
+
+/**
+ * Base fake data generator
+ */
+abstract class BaseModelFaker
+{
+    /**
+     * @var Generator
+    */
+    protected $faker;
+    /**
+     * @var UniqueGenerator
+    */
+    protected $uniqueFaker;
+
+    public function __construct()
+    {
+        $this->faker = FakerFactory::create(str_replace('-', '_', \Yii::$app->language));
+        $this->uniqueFaker = new UniqueGenerator($this->faker);
+    }
+
+    abstract public function generateModel($attributes = []);
+
+    public function getFaker():Generator
+    {
+        return $this->faker;
+    }
+
+    public function getUniqueFaker():UniqueGenerator
+    {
+        return $this->uniqueFaker;
+    }
+
+    public function setFaker(Generator $faker):void
+    {
+        $this->faker = $faker;
+    }
+
+    public function setUniqueFaker(UniqueGenerator $faker):void
+    {
+        $this->uniqueFaker = $faker;
+    }
+
+    /**
+     * Generate and return model
+     * @param array|callable $attributes
+     * @param UniqueGenerator|null $uniqueFaker
+     * @return \yii\db\ActiveRecord
+     * @example MyFaker::makeOne(['user_id' => 1, 'title' => 'foo']);
+     * @example MyFaker::makeOne( function($model, $faker) {
+     *        $model->scenario = 'create';
+     *        $model->setAttributes(['user_id' => 1, 'title' => $faker->sentence]);
+     *        return $model;
+     *  });
+     */
+    public static function makeOne($attributes = [], ?UniqueGenerator $uniqueFaker = null)
+    {
+        $fakeBuilder = new static();
+        if ($uniqueFaker !== null) {
+            $fakeBuilder->setUniqueFaker($uniqueFaker);
+        }
+        $model = $fakeBuilder->generateModel($attributes);
+        return $model;
+    }
+
+    /**
+     * Generate, save and return model
+     * @param array|callable $attributes
+     * @param UniqueGenerator|null $uniqueFaker
+     * @return \yii\db\ActiveRecord
+     * @example MyFaker::saveOne(['user_id' => 1, 'title' => 'foo']);
+     * @example MyFaker::saveOne( function($model, $faker) {
+     *        $model->scenario = 'create';
+     *        $model->setAttributes(['user_id' => 1, 'title' => $faker->sentence]);
+     *        return $model;
+     *  });
+     */
+    public static function saveOne($attributes = [], ?UniqueGenerator $uniqueFaker = null)
+    {
+        $model = static::makeOne($attributes, $uniqueFaker);
+        $model->save();
+        return $model;
+    }
+
+    /**
+     * Generate and return multiple models
+     * @param int $number
+     * @param array|callable $commonAttributes
+     * @return \yii\db\ActiveRecord[]|array
+     * @example TaskFaker::make(5, ['project_id'=>1, 'user_id' => 2]);
+     * @example TaskFaker::make(5, function($model, $faker, $uniqueFaker) {
+     *       $model->setAttributes(['name' => $uniqueFaker->username, 'state'=>$faker->boolean(20)]);
+     *       return $model;
+     * });
+     */
+    public static function make(int $number, $commonAttributes = [], ?UniqueGenerator $uniqueFaker = null):array
+    {
+        if ($number < 1) {
+            return [];
+        }
+        $fakeBuilder = new static();
+        if ($uniqueFaker !== null) {
+            $fakeBuilder->setUniqueFaker($uniqueFaker);
+        }
+        return array_map(function () use ($commonAttributes, $fakeBuilder) {
+            $model = $fakeBuilder->generateModel($commonAttributes);
+            return $model;
+        }, range(0, $number -1));
+    }
+
+    /**
+     * Generate, save and return multiple models
+     * @param int $number
+     * @param array|callable $commonAttributes
+     * @return \yii\db\ActiveRecord[]|array
+     * @example TaskFaker::save(5, ['project_id'=>1, 'user_id' => 2]);
+     * @example TaskFaker::save(5, function($model, $faker, $uniqueFaker) {
+     *       $model->setAttributes(['name' => $uniqueFaker->username, 'state'=>$faker->boolean(20)]);
+     *       return $model;
+     * });
+     */
+    public static function save(int $number, $commonAttributes = [], ?UniqueGenerator $uniqueFaker = null):array
+    {
+        if ($number < 1) {
+            return [];
+        }
+        $fakeBuilder = new static();
+        if ($uniqueFaker !== null) {
+            $fakeBuilder->setUniqueFaker($uniqueFaker);
+        }
+        return array_map(function () use ($commonAttributes, $fakeBuilder) {
+            $model = $fakeBuilder->generateModel($commonAttributes);
+            $model->save();
+            return $model;
+        }, range(0, $number -1));
+    }
+}
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/Contact.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/Contact.php
new file mode 100644
index 00000000..8447fdaf
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/Contact.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace app\models;
+
+class Contact extends \app\models\base\Contact
+{
+
+
+}
+
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/ContactFaker.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/ContactFaker.php
new file mode 100644
index 00000000..c1a4a88f
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/ContactFaker.php
@@ -0,0 +1,52 @@
+<?php
+namespace app\models;
+
+use Faker\UniqueGenerator;
+
+/**
+ * Fake data generator for Contact
+ * @method static Contact makeOne($attributes = [], ?UniqueGenerator $uniqueFaker = null);
+ * @method static Contact saveOne($attributes = [], ?UniqueGenerator $uniqueFaker = null);
+ * @method static Contact[] make(int $number, $commonAttributes = [], ?UniqueGenerator $uniqueFaker = null)
+ * @method static Contact[] save(int $number, $commonAttributes = [], ?UniqueGenerator $uniqueFaker = null)
+ */
+class ContactFaker extends BaseModelFaker
+{
+
+    /**
+     * @param array|callable $attributes
+     * @return Contact|\yii\db\ActiveRecord
+     * @example
+     *  $model = (new PostFaker())->generateModels(['author_id' => 1]);
+     *  $model = (new PostFaker())->generateModels(function($model, $faker, $uniqueFaker) {
+     *            $model->scenario = 'create';
+     *            $model->author_id = 1;
+     *            return $model;
+     *  });
+    **/
+    public function generateModel($attributes = [])
+    {
+        $faker = $this->faker;
+        $uniqueFaker = $this->uniqueFaker;
+        $model = new Contact();
+        //$model->id = $uniqueFaker->numberBetween(0, 1000000);
+        $model->account_id = $faker->randomElement(\app\models\Account::find()->select("id")->column());
+        $model->active = $faker->boolean;
+        $model->nickname = $faker->sentence;
+        if (!is_callable($attributes)) {
+            $model->setAttributes($attributes, false);
+        } else {
+            $model = $attributes($model, $faker, $uniqueFaker);
+        }
+        return $model;
+    }
+
+    public static function dependentOn()
+    {
+        return [
+            // just model class names
+            'Account',
+
+        ];
+    }
+}
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/PaymentMethod.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/PaymentMethod.php
new file mode 100644
index 00000000..dec326f2
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/PaymentMethod.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace app\models;
+
+class PaymentMethod extends \app\models\base\PaymentMethod
+{
+
+
+}
+
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/PaymentMethodFaker.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/PaymentMethodFaker.php
new file mode 100644
index 00000000..34a0b9a1
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/PaymentMethodFaker.php
@@ -0,0 +1,40 @@
+<?php
+namespace app\models;
+
+use Faker\UniqueGenerator;
+
+/**
+ * Fake data generator for PaymentMethod
+ * @method static PaymentMethod makeOne($attributes = [], ?UniqueGenerator $uniqueFaker = null);
+ * @method static PaymentMethod saveOne($attributes = [], ?UniqueGenerator $uniqueFaker = null);
+ * @method static PaymentMethod[] make(int $number, $commonAttributes = [], ?UniqueGenerator $uniqueFaker = null)
+ * @method static PaymentMethod[] save(int $number, $commonAttributes = [], ?UniqueGenerator $uniqueFaker = null)
+ */
+class PaymentMethodFaker extends BaseModelFaker
+{
+
+    /**
+     * @param array|callable $attributes
+     * @return PaymentMethod|\yii\db\ActiveRecord
+     * @example
+     *  $model = (new PostFaker())->generateModels(['author_id' => 1]);
+     *  $model = (new PostFaker())->generateModels(function($model, $faker, $uniqueFaker) {
+     *            $model->scenario = 'create';
+     *            $model->author_id = 1;
+     *            return $model;
+     *  });
+    **/
+    public function generateModel($attributes = [])
+    {
+        $faker = $this->faker;
+        $uniqueFaker = $this->uniqueFaker;
+        $model = new PaymentMethod();
+        //$model->id = $uniqueFaker->numberBetween(0, 1000000);
+        if (!is_callable($attributes)) {
+            $model->setAttributes($attributes, false);
+        } else {
+            $model = $attributes($model, $faker, $uniqueFaker);
+        }
+        return $model;
+    }
+}
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/base/Account.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/base/Account.php
new file mode 100644
index 00000000..f3dae5db
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/base/Account.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace app\models\base;
+
+/**
+ * Account
+ *
+ * @property int $id
+ * @property string $name account name
+ * @property string $paymentMethodName
+ *
+ */
+abstract class Account extends \yii\db\ActiveRecord
+{
+    public static function tableName()
+    {
+        return '{{%accounts}}';
+    }
+
+    public function rules()
+    {
+        return [
+            'trim' => [['name', 'paymentMethodName'], 'trim'],
+            'required' => [['name'], 'required'],
+            'name_string' => [['name'], 'string', 'max' => 128],
+            'paymentMethodName_string' => [['paymentMethodName'], 'string'],
+        ];
+    }
+}
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/base/Contact.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/base/Contact.php
new file mode 100644
index 00000000..21a2e7f1
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/base/Contact.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace app\models\base;
+
+/**
+ * Contact
+ *
+ * @property int $id
+ * @property int $account_id Account
+ * @property bool $active
+ * @property string $nickname
+ *
+ * @property \app\models\Account $account
+ */
+abstract class Contact extends \yii\db\ActiveRecord
+{
+    public static function tableName()
+    {
+        return '{{%contacts}}';
+    }
+
+    public function rules()
+    {
+        return [
+            'trim' => [['nickname'], 'trim'],
+            'required' => [['account_id'], 'required'],
+            'account_id_integer' => [['account_id'], 'integer'],
+            'account_id_exist' => [['account_id'], 'exist', 'targetRelation' => 'Account'],
+            'active_boolean' => [['active'], 'boolean'],
+            'active_default' => [['active'], 'default', 'value' => false],
+            'nickname_string' => [['nickname'], 'string'],
+        ];
+    }
+
+    public function getAccount()
+    {
+        return $this->hasOne(\app\models\Account::class, ['id' => 'account_id']);
+    }
+}
diff --git a/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/base/PaymentMethod.php b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/base/PaymentMethod.php
new file mode 100644
index 00000000..79e8c05b
--- /dev/null
+++ b/tests/specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql/models/base/PaymentMethod.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace app\models\base;
+
+/**
+ * PaymentMethod
+ *
+ * @property int $id
+ * @property string $name
+ *
+ */
+abstract class PaymentMethod extends \yii\db\ActiveRecord
+{
+    public static function tableName()
+    {
+        return '{{%payment_methods}}';
+    }
+
+    public function rules()
+    {
+        return [
+            'trim' => [['name'], 'trim'],
+            'required' => [['name'], 'required'],
+            'name_unique' => [['name'], 'unique'],
+            'name_string' => [['name'], 'string', 'max' => 150],
+        ];
+    }
+}
diff --git a/tests/unit/IssueFixTest.php b/tests/unit/IssueFixTest.php
index c38a57ff..04a31c2d 100644
--- a/tests/unit/IssueFixTest.php
+++ b/tests/unit/IssueFixTest.php
@@ -300,4 +300,19 @@ public function test163GeneratorCrashWhenUsingReferenceInsideAnObject()
         ]);
         $this->checkFiles($actualFiles, $expectedFiles);
     }
+
+    // #175 https://github.com/cebe/yii2-openapi/issues/175
+    // Bug: allOf with multiple $refs
+    public function test175BugAllOfWithMultipleDollarRefs()
+    {
+        $testFile = Yii::getAlias("@specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/index.php");
+        $this->runGenerator($testFile, 'pgsql');
+         $actualFiles = FileHelper::findFiles(Yii::getAlias('@app'), [
+             'recursive' => true,
+         ]);
+         $expectedFiles = FileHelper::findFiles(Yii::getAlias("@specs/issue_fix/175_bug_allof_with_multiple_dollarrefs/pgsql"), [
+             'recursive' => true,
+         ]);
+         $this->checkFiles($actualFiles, $expectedFiles);
+    }
 }