diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7d67d101..146e6518 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3']
+        php-versions: ['7.4', '8.0', '8.1', '8.2', '8.3']
 
     # TODO use cache
     steps:
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
diff --git a/src/lib/ValidationRulesBuilder.php b/src/lib/ValidationRulesBuilder.php
index 035c8a3d..3f3c1398 100644
--- a/src/lib/ValidationRulesBuilder.php
+++ b/src/lib/ValidationRulesBuilder.php
@@ -142,7 +142,8 @@ private function addRulesByAttributeName(Attribute $attribute):void
             '~(url|site|website|href|link)~i' => 'url',
         ];
         foreach ($patterns as $pattern => $validator) {
-            if (preg_match($pattern, strtolower($attribute->columnName))) {
+            if (empty($attribute->reference) # ignore column name based rules in case of reference/relation # https://github.com/cebe/yii2-openapi/issues/159
+                && preg_match($pattern, strtolower($attribute->columnName))) {
                 $key = $attribute->columnName . '_' . $validator;
                 $this->rules[$key] = new ValidationRule([$attribute->columnName], $validator);
                 return;
@@ -232,7 +233,9 @@ private function prepareTypeScope():void
                 $this->typeScope['required'][$attribute->columnName] = $attribute->columnName;
             }
 
-            if ($attribute->phpType === 'string') {
+            if ($attribute->phpType === 'string' &&
+                empty($attribute->enumValues) # don't apply trim on enum columns # https://github.com/cebe/yii2-openapi/issues/158
+            ) {
                 $this->typeScope['trim'][$attribute->columnName] = $attribute->columnName;
             }
 
diff --git a/src/lib/openapi/ResponseSchema.php b/src/lib/openapi/ResponseSchema.php
index f64bd8de..06b53f23 100644
--- a/src/lib/openapi/ResponseSchema.php
+++ b/src/lib/openapi/ResponseSchema.php
@@ -7,6 +7,7 @@
 
 namespace cebe\yii2openapi\lib\openapi;
 
+use cebe\openapi\exceptions\UnresolvableReferenceException;
 use cebe\openapi\spec\MediaType;
 use cebe\openapi\spec\Operation;
 use cebe\openapi\spec\Reference;
@@ -36,10 +37,10 @@ protected static function isObjectSchema($schema): bool
     protected static function isArraySchemaWithRefItems($schema): bool
     {
         return isset($schema->items) && $schema->items instanceof Reference &&
-            (isset($schema->type) &&  $schema->type === 'array');
+            (isset($schema->type) && $schema->type === 'array');
     }
 
-    protected static function hasAttributesReference($schema):bool
+    protected static function hasAttributesReference($schema): bool
     {
         return isset($schema->properties['attributes']) && $schema->properties['attributes'] instanceof Reference;
     }
@@ -49,17 +50,20 @@ protected static function schemaNameByRef($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);
     }
 
     /**
-     * @param \cebe\openapi\spec\Operation $operation
+     * @param Operation $operation
      * @return array
-     * @throws \cebe\openapi\exceptions\UnresolvableReferenceException
+     * @throws UnresolvableReferenceException
      */
-    public static function guessResponseRelations(Operation $operation):array
+    public static function guessResponseRelations(Operation $operation): array
     {
         if (!isset($operation->responses)) {
             return [];
@@ -109,12 +113,12 @@ public static function guessResponseRelations(Operation $operation):array
     }
 
     /**
-     * @param \cebe\openapi\spec\Operation $operation
+     * @param Operation $operation
      * @param                              $actionType
      * @return string|null
-     * @throws \cebe\openapi\exceptions\UnresolvableReferenceException
+     * @throws UnresolvableReferenceException
      */
-    public static function guessModelClass(Operation $operation, $actionType):?string
+    public static function guessModelClass(Operation $operation, $actionType): ?string
     {
         // first, check request body
         $requestBody = $operation->requestBody;
@@ -159,20 +163,26 @@ public static function guessModelClass(Operation $operation, $actionType):?strin
     }
 
     /**
-     * @param \cebe\openapi\SpecObjectInterface $property
+     * @param SpecObjectInterface $property
      * @return array|null[]
-     * @throws \cebe\openapi\exceptions\UnresolvableReferenceException
+     * @throws UnresolvableReferenceException
      */
     public static function guessModelClassFromJsonResource(SpecObjectInterface $property): array
     {
-        $schema = $property instanceof Reference? $property->resolve() : $property;
-
-        if (self::isObjectSchema($schema) && self::hasAttributesReference($schema)) {
-            $name = self::schemaNameByRef($schema->properties['attributes']);
-            if ($name !== null) {
-                return [$name, '', '', 'object'];
+        $schema = $property instanceof Reference ? $property->resolve() : $property;
+        if (self::isObjectSchema($schema)) {
+            if (self::hasAttributesReference($schema)) {
+                $name = self::schemaNameByRef($schema->properties['attributes']);
+                if ($name !== null) {
+                    return [$name, '', '', 'object'];
+                }
+                return [null, null, null, null];
+            } else { # https://github.com/cebe/yii2-openapi/issues/172
+                $name = self::schemaNameByRef($property);
+                if ($name !== null) {
+                    return [$name, '', '', 'object'];
+                }
             }
-            return [null, null, null, null];
         }
         if (self::isArraySchemaWithRefItems($property)) {
             $ref = $property->items->resolve();
@@ -188,11 +198,11 @@ public static function guessModelClassFromJsonResource(SpecObjectInterface $prop
     }
 
     /**
-     * @param \cebe\openapi\spec\MediaType $content
+     * @param MediaType $content
      * @return array|null[]
-     * @throws \cebe\openapi\exceptions\UnresolvableReferenceException
+     * @throws UnresolvableReferenceException
      */
-    public static function guessModelClassFromContent(MediaType $content):array
+    public static function guessModelClassFromContent(MediaType $content): array
     {
         /** @var $referencedSchema Schema */
         if ($content->schema instanceof Reference) {
@@ -255,9 +265,9 @@ public static function guessModelClassFromContent(MediaType $content):array
      * @param Operation $operation
      * @param           $modelClass
      * @return null|array
-     * @throws \cebe\openapi\exceptions\UnresolvableReferenceException
+     * @throws UnresolvableReferenceException
      */
-    public static function findResponseWrapper(Operation $operation, $modelClass):?array
+    public static function findResponseWrapper(Operation $operation, $modelClass): ?array
     {
         if (!isset($operation->responses)) {
             return null;
diff --git a/tests/specs/blog_v2/models/base/Post.php b/tests/specs/blog_v2/models/base/Post.php
index aec49f28..44fe4275 100644
--- a/tests/specs/blog_v2/models/base/Post.php
+++ b/tests/specs/blog_v2/models/base/Post.php
@@ -29,7 +29,7 @@ public static function tableName()
     public function rules()
     {
         return [
-            'trim' => [['title', 'slug', 'lang', 'created_at'], 'trim'],
+            'trim' => [['title', 'slug', 'created_at'], 'trim'],
             'required' => [['title', 'category_id', 'active'], 'required'],
             'category_id_integer' => [['category_id'], 'integer'],
             'category_id_exist' => [['category_id'], 'exist', 'targetRelation' => 'Category'],
diff --git a/tests/specs/blog_v2/models/base/Tag.php b/tests/specs/blog_v2/models/base/Tag.php
index 15b383fb..f1a57778 100644
--- a/tests/specs/blog_v2/models/base/Tag.php
+++ b/tests/specs/blog_v2/models/base/Tag.php
@@ -21,7 +21,7 @@ public static function tableName()
     public function rules()
     {
         return [
-            'trim' => [['name', 'lang'], 'trim'],
+            'trim' => [['name'], 'trim'],
             'required' => [['name', 'lang'], 'required'],
             'name_unique' => [['name'], 'unique'],
             'name_string' => [['name'], 'string', 'max' => 100],
diff --git a/tests/specs/blog_v2/models/base/User.php b/tests/specs/blog_v2/models/base/User.php
index f75a9d97..195b5b5e 100644
--- a/tests/specs/blog_v2/models/base/User.php
+++ b/tests/specs/blog_v2/models/base/User.php
@@ -24,7 +24,7 @@ public static function tableName()
     public function rules()
     {
         return [
-            'trim' => [['login', 'email', 'password', 'role', 'created_at'], 'trim'],
+            'trim' => [['login', 'email', 'password', 'created_at'], 'trim'],
             'required' => [['login', 'email', 'password'], 'required'],
             'login_unique' => [['login'], 'unique'],
             'email_unique' => [['email'], 'unique'],
diff --git a/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/index.php b/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/index.php
new file mode 100644
index 00000000..515b362c
--- /dev/null
+++ b/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/index.php
@@ -0,0 +1,14 @@
+<?php
+
+return [
+    'openApiPath' => '@specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/index.yaml',
+    'generateUrls' => false,
+    'generateModels' => true,
+    'excludeModels' => [
+        'Error',
+    ],
+    'generateControllers' => false,
+    'generateMigrations' => false,
+    'generateModelFaker' => true, // `generateModels` must be `true` in orde to use `generateModelFaker` as `true`
+];
+
diff --git a/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/index.yaml b/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/index.yaml
new file mode 100644
index 00000000..b8268605
--- /dev/null
+++ b/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/index.yaml
@@ -0,0 +1,40 @@
+
+openapi: 3.0.3
+
+info:
+  title: 'Proxy-Service'
+  version: 1.0.0
+
+components:
+
+  schemas:
+
+    Mailing:
+      description: Mailing
+      type: object
+      required:
+        - id
+        - name
+      properties:
+        id:
+          type: integer
+          readOnly: true
+        name:
+          description: name
+          type: string
+          maxLength: 128
+        paymentMethodName:
+          type: string
+          enum:
+            - card
+            - cash
+            - ewallet
+
+paths:
+  '/':
+    get:
+      operationId: opId
+      summary: summary
+      responses:
+        '200':
+          description: OK
diff --git a/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/maria/models/BaseModelFaker.php b/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/maria/models/BaseModelFaker.php
new file mode 100644
index 00000000..c367fbb4
--- /dev/null
+++ b/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/maria/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, $number -1));
+    }
+}
diff --git a/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/maria/models/Mailing.php b/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/maria/models/Mailing.php
new file mode 100644
index 00000000..bb3f8821
--- /dev/null
+++ b/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/maria/models/Mailing.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace app\models;
+
+class Mailing extends \app\models\base\Mailing
+{
+
+
+}
+
diff --git a/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/maria/models/MailingFaker.php b/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/maria/models/MailingFaker.php
new file mode 100644
index 00000000..25e1a71b
--- /dev/null
+++ b/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/maria/models/MailingFaker.php
@@ -0,0 +1,42 @@
+<?php
+namespace app\models;
+
+use Faker\UniqueGenerator;
+
+/**
+ * Fake data generator for Mailing
+ * @method static Mailing makeOne($attributes = [], ?UniqueGenerator $uniqueFaker = null);
+ * @method static Mailing saveOne($attributes = [], ?UniqueGenerator $uniqueFaker = null);
+ * @method static Mailing[] make(int $number, $commonAttributes = [], ?UniqueGenerator $uniqueFaker = null)
+ * @method static Mailing[] save(int $number, $commonAttributes = [], ?UniqueGenerator $uniqueFaker = null)
+ */
+class MailingFaker extends BaseModelFaker
+{
+
+    /**
+     * @param array|callable $attributes
+     * @return Mailing|\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;
+        $model = new Mailing();
+        //$model->id = $uniqueFaker->numberBetween(0, 1000000);
+        $model->name = substr($faker->text(128), 0, 128);
+        $model->paymentMethodName = $faker->randomElement(['card','cash','ewallet']);
+        if (!is_callable($attributes)) {
+            $model->setAttributes($attributes, false);
+        } else {
+            $model = $attributes($model, $faker, $uniqueFaker);
+        }
+        return $model;
+    }
+}
diff --git a/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/maria/models/base/Mailing.php b/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/maria/models/base/Mailing.php
new file mode 100644
index 00000000..2839c526
--- /dev/null
+++ b/tests/specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/maria/models/base/Mailing.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace app\models\base;
+
+/**
+ * Mailing
+ *
+ * @property int $id
+ * @property string $name name
+ * @property string $paymentMethodName
+ *
+ */
+abstract class Mailing extends \yii\db\ActiveRecord
+{
+    public static function tableName()
+    {
+        return '{{%mailings}}';
+    }
+
+    public function rules()
+    {
+        return [
+            'trim' => [['name'], 'trim'],
+            'required' => [['name'], 'required'],
+            'name_string' => [['name'], 'string', 'max' => 128],
+            'paymentMethodName_string' => [['paymentMethodName'], 'string'],
+            'paymentMethodName_in' => [['paymentMethodName'], 'in', 'range' => [
+                'card',
+                'cash',
+                'ewallet',
+            ]],
+        ];
+    }
+}
diff --git a/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/index.php b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/index.php
new file mode 100644
index 00000000..b66f036b
--- /dev/null
+++ b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/index.php
@@ -0,0 +1,14 @@
+<?php
+
+return [
+    'openApiPath' => '@specs/issue_fix/159_bug_giiapi_generated_rules_emailid/index.yaml',
+    'generateUrls' => false,
+    'generateModels' => true,
+    'excludeModels' => [
+        'Error',
+    ],
+    'generateControllers' => false,
+    'generateMigrations' => false,
+    'generateModelFaker' => true, // `generateModels` must be `true` in orde to use `generateModelFaker` as `true`
+];
+
diff --git a/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/index.yaml b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/index.yaml
new file mode 100644
index 00000000..4fbb6f88
--- /dev/null
+++ b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/index.yaml
@@ -0,0 +1,54 @@
+
+openapi: 3.0.3
+
+info:
+  title: 'Proxy-Service'
+  version: 1.0.0
+
+components:
+
+  schemas:
+
+    Mailing:
+      description: Mailing
+      type: object
+      required:
+        - id
+        - name
+      properties:
+        id:
+          type: integer
+          readOnly: true
+        name:
+          description: name
+          type: string
+          maxLength: 128
+        paymentMethodName:
+          type: string
+
+    Contact:
+      description: Contact
+      type: object
+      required:
+        - id
+        - mailing
+      properties:
+        id:
+          type: integer
+          readOnly: true
+        mailing:
+          $ref: '#/components/schemas/Mailing'
+        active:
+          type: boolean
+          default: false
+        nickname:
+          type: string
+
+paths:
+  '/':
+    get:
+      operationId: opId
+      summary: summary
+      responses:
+        '200':
+          description: OK
diff --git a/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/BaseModelFaker.php b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/BaseModelFaker.php
new file mode 100644
index 00000000..c367fbb4
--- /dev/null
+++ b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/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, $number -1));
+    }
+}
diff --git a/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/Contact.php b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/Contact.php
new file mode 100644
index 00000000..8447fdaf
--- /dev/null
+++ b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/Contact.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace app\models;
+
+class Contact extends \app\models\base\Contact
+{
+
+
+}
+
diff --git a/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/ContactFaker.php b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/ContactFaker.php
new file mode 100644
index 00000000..75604ea2
--- /dev/null
+++ b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/ContactFaker.php
@@ -0,0 +1,52 @@
+<?php
+namespace app\models;
+
+use Faker\UniqueGenerator;
+
+/**
+ * Fake data generator for Contact
+ * @method static Contact makeOne($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->mailing_id = $faker->randomElement(\app\models\Mailing::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 $model;
+    }
+
+    public static function dependentOn()
+    {
+        return [
+            // just model class names
+            'Mailing',
+
+        ];
+    }
+}
diff --git a/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/Mailing.php b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/Mailing.php
new file mode 100644
index 00000000..bb3f8821
--- /dev/null
+++ b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/Mailing.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace app\models;
+
+class Mailing extends \app\models\base\Mailing
+{
+
+
+}
+
diff --git a/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/MailingFaker.php b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/MailingFaker.php
new file mode 100644
index 00000000..1cd0a3f2
--- /dev/null
+++ b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/MailingFaker.php
@@ -0,0 +1,42 @@
+<?php
+namespace app\models;
+
+use Faker\UniqueGenerator;
+
+/**
+ * Fake data generator for Mailing
+ * @method static Mailing makeOne($attributes = [], ?UniqueGenerator $uniqueFaker = null);
+ * @method static Mailing saveOne($attributes = [], ?UniqueGenerator $uniqueFaker = null);
+ * @method static Mailing[] make(int $number, $commonAttributes = [], ?UniqueGenerator $uniqueFaker = null)
+ * @method static Mailing[] save(int $number, $commonAttributes = [], ?UniqueGenerator $uniqueFaker = null)
+ */
+class MailingFaker extends BaseModelFaker
+{
+
+    /**
+     * @param array|callable $attributes
+     * @return Mailing|\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;
+        $model = new Mailing();
+        //$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/159_bug_giiapi_generated_rules_emailid/maria/models/base/Contact.php b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/base/Contact.php
new file mode 100644
index 00000000..efbd8b32
--- /dev/null
+++ b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/base/Contact.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace app\models\base;
+
+/**
+ * Contact
+ *
+ * @property int $id
+ * @property int $mailing_id Mailing
+ * @property bool $active
+ * @property string $nickname
+ *
+ * @property \app\models\Mailing $mailing
+ */
+abstract class Contact extends \yii\db\ActiveRecord
+{
+    public static function tableName()
+    {
+        return '{{%contacts}}';
+    }
+
+    public function rules()
+    {
+        return [
+            'trim' => [['nickname'], 'trim'],
+            'required' => [['mailing_id'], 'required'],
+            'mailing_id_integer' => [['mailing_id'], 'integer'],
+            'mailing_id_exist' => [['mailing_id'], 'exist', 'targetRelation' => 'Mailing'],
+            'active_boolean' => [['active'], 'boolean'],
+            'active_default' => [['active'], 'default', 'value' => false],
+            'nickname_string' => [['nickname'], 'string'],
+        ];
+    }
+
+    public function getMailing()
+    {
+        return $this->hasOne(\app\models\Mailing::class, ['id' => 'mailing_id']);
+    }
+}
diff --git a/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/base/Mailing.php b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/base/Mailing.php
new file mode 100644
index 00000000..77049b23
--- /dev/null
+++ b/tests/specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria/models/base/Mailing.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace app\models\base;
+
+/**
+ * Mailing
+ *
+ * @property int $id
+ * @property string $name name
+ * @property string $paymentMethodName
+ *
+ */
+abstract class Mailing extends \yii\db\ActiveRecord
+{
+    public static function tableName()
+    {
+        return '{{%mailings}}';
+    }
+
+    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/172_schemayaml_requestbody_has_no_effect/index.php b/tests/specs/issue_fix/172_schemayaml_requestbody_has_no_effect/index.php
new file mode 100644
index 00000000..3debbb46
--- /dev/null
+++ b/tests/specs/issue_fix/172_schemayaml_requestbody_has_no_effect/index.php
@@ -0,0 +1,14 @@
+<?php
+
+return [
+    'openApiPath' => '@specs/issue_fix/172_schemayaml_requestbody_has_no_effect/index.yaml',
+    'generateUrls' => false,
+    'generateModels' => false,
+    'excludeModels' => [
+        'Error',
+    ],
+    'generateControllers' => true,
+    'generateMigrations' => false,
+    'generateModelFaker' => false, // `generateModels` must be `true` in orde to use `generateModelFaker` as `true`
+];
+
diff --git a/tests/specs/issue_fix/172_schemayaml_requestbody_has_no_effect/index.yaml b/tests/specs/issue_fix/172_schemayaml_requestbody_has_no_effect/index.yaml
new file mode 100644
index 00000000..f309e31d
--- /dev/null
+++ b/tests/specs/issue_fix/172_schemayaml_requestbody_has_no_effect/index.yaml
@@ -0,0 +1,68 @@
+openapi: 3.0.3
+
+info:
+  title: 'Proxy-Service'
+  version: 1.0.0
+
+components:
+
+  requestBodies:
+
+    Account:
+      description: 'Create / update account'
+      required: true
+      content:
+        application/vnd.api+json:
+          schema:
+            type: object
+            properties:
+              data:
+                $ref: '#/components/schemas/Account'
+
+  responses:
+
+    Account:
+      description: 'Returns one account by ID.'
+      content:
+        application/vnd.api+json:
+          schema:
+            $ref: '#/components/schemas/Account'
+
+  schemas:
+
+    Account:
+      description: Account
+      type: object
+      required:
+        - id
+        - name
+      properties:
+        id:
+          type: integer
+          readOnly: true
+        name:
+          description: account name
+          type: string
+          maxLength: 128
+
+paths:
+
+  '/accounts':
+
+    post:
+      operationId: createAccount
+      summary: Create a account
+      description: Create account
+      requestBody:
+        $ref: '#/components/requestBodies/Account'
+      responses:
+        '201':
+          description: OK
+#          $ref: '#/components/responses/Account'
+        '400':
+          description: BodyParams must be an array.
+        '422':
+          description: Validation error.
+      tags:
+        - Accounts
+
diff --git a/tests/specs/issue_fix/172_schemayaml_requestbody_has_no_effect/pgsql/controllers/AccountController.php b/tests/specs/issue_fix/172_schemayaml_requestbody_has_no_effect/pgsql/controllers/AccountController.php
new file mode 100644
index 00000000..8c4f5280
--- /dev/null
+++ b/tests/specs/issue_fix/172_schemayaml_requestbody_has_no_effect/pgsql/controllers/AccountController.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace app\controllers;
+
+class AccountController extends \app\controllers\base\AccountController
+{
+
+    public function checkAccess($action, $model = null, $params = [])
+    {
+        //TODO implement checkAccess
+    }
+
+
+}
+
diff --git a/tests/specs/issue_fix/172_schemayaml_requestbody_has_no_effect/pgsql/controllers/base/AccountController.php b/tests/specs/issue_fix/172_schemayaml_requestbody_has_no_effect/pgsql/controllers/base/AccountController.php
new file mode 100644
index 00000000..e476d384
--- /dev/null
+++ b/tests/specs/issue_fix/172_schemayaml_requestbody_has_no_effect/pgsql/controllers/base/AccountController.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace app\controllers\base;
+
+abstract class AccountController extends \yii\rest\Controller
+{
+    public function actions()
+    {
+        return [
+            'create' => [
+                'class' => \yii\rest\CreateAction::class,
+                'modelClass' => \app\models\Account::class,
+                'checkAccess' => [$this, 'checkAccess'],
+            ],
+            '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 = []);
+
+}
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/specs/postgres_custom/models/base/Custom.php b/tests/specs/postgres_custom/models/base/Custom.php
index f7bbc803..ea4bd5f7 100644
--- a/tests/specs/postgres_custom/models/base/Custom.php
+++ b/tests/specs/postgres_custom/models/base/Custom.php
@@ -26,7 +26,6 @@ public static function tableName()
     public function rules()
     {
         return [
-            'trim' => [['status', 'status_x'], 'trim'],
             'num_integer' => [['num'], 'integer'],
             'num_default' => [['num'], 'default', 'value' => 0],
             'json1_default' => [['json1'], 'default', 'value' => []],
diff --git a/tests/unit/IssueFixTest.php b/tests/unit/IssueFixTest.php
index c38a57ff..b6c7abdb 100644
--- a/tests/unit/IssueFixTest.php
+++ b/tests/unit/IssueFixTest.php
@@ -300,4 +300,64 @@ 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);
+    }
+
+    // #172 https://github.com/cebe/yii2-openapi/issues/172
+    // schema.yaml: requestBody has no effect
+    public function test172SchemayamlRequestBodyHasNoEffect()
+    {
+        $testFile = Yii::getAlias("@specs/issue_fix/172_schemayaml_requestbody_has_no_effect/index.php");
+        $this->runGenerator($testFile, 'pgsql');
+        $actualFiles = FileHelper::findFiles(Yii::getAlias('@app'), [
+            'recursive' => true,
+        ]);
+        $expectedFiles = FileHelper::findFiles(Yii::getAlias("@specs/issue_fix/172_schemayaml_requestbody_has_no_effect/pgsql"), [
+            'recursive' => true,
+        ]);
+        $this->checkFiles($actualFiles, $expectedFiles);
+    }
+
+    // https://github.com/cebe/yii2-openapi/issues/159
+    public function test159BugGiiapiGeneratedRulesEmailid()
+    {
+        $this->changeDbToMariadb();
+        $testFile = Yii::getAlias("@specs/issue_fix/159_bug_giiapi_generated_rules_emailid/index.php");
+        $this->runGenerator($testFile, 'maria');
+        $actualFiles = FileHelper::findFiles(Yii::getAlias('@app'), [
+            'recursive' => true,
+        ]);
+        $expectedFiles = FileHelper::findFiles(Yii::getAlias("@specs/issue_fix/159_bug_giiapi_generated_rules_emailid/maria"), [
+            'recursive' => true,
+        ]);
+        $this->checkFiles($actualFiles, $expectedFiles);
+    }
+
+    // https://github.com/cebe/yii2-openapi/issues/158
+    public function test158BugGiiapiGeneratedRulesEnumWithTrim()
+    {
+        $this->changeDbToMariadb();
+        $testFile = Yii::getAlias("@specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/index.php");
+        $this->runGenerator($testFile, 'maria');
+        $actualFiles = FileHelper::findFiles(Yii::getAlias('@app'), [
+            'recursive' => true,
+        ]);
+        $expectedFiles = FileHelper::findFiles(Yii::getAlias("@specs/issue_fix/158_bug_giiapi_generated_rules_enum_with_trim/maria"), [
+            'recursive' => true,
+        ]);
+        $this->checkFiles($actualFiles, $expectedFiles);
+    }
 }
diff --git a/tests/unit/ValidatorRulesBuilderTest.php b/tests/unit/ValidatorRulesBuilderTest.php
index 81d8a8fd..43343df6 100644
--- a/tests/unit/ValidatorRulesBuilderTest.php
+++ b/tests/unit/ValidatorRulesBuilderTest.php
@@ -42,7 +42,6 @@ public function testBuild()
             'trim' => new ValidationRule([
                 'title',
                 'article',
-                'state',
                 'created_at',
                 'contact_email',
                 'required_with_def',