fix: improve phpstan hints

composer.json

@@ -24,12 +24,12 @@
     },
     "require-dev": {
         "yiisoft/yii2": "^2.0",
-        "codeception/codeception": "> 4",
+        "codeception/codeception": "> 5",
         "codeception/module-yii2": "^1.1",
-        "codeception/module-asserts": "^1.2",
-        "vimeo/psalm": "^4.21",
-        "symplify/easy-coding-standard": "^11.1",
-        "phpstan/phpstan": "^1.8",
+        "codeception/module-asserts": "^3",
+        "vimeo/psalm": "^5",
+        "symplify/easy-coding-standard": "^12",
+        "phpstan/phpstan": "^1",
         "captainhook/plugin-composer": "^5.3",
         "ramsey/conventional-commits": "^1.3"
 

src/VirtualFieldQueryBehavior.php

@@ -30,6 +30,7 @@ public function attach($owner): void
      */
     public function withFields(string ...$fields): ActiveQuery
     {
-        return $this->addField($this->owner, array_values($fields));
+        $this->addField($this->owner, array_values($fields));
+        return $this->owner;
     }
 }

src/VirtualFieldQueryTrait.php

@@ -25,30 +25,30 @@ private function getModelInstance(string $class): ActiveRecord
     }
 
     /**
-     * @param ActiveQuery $query
      * @param list<string> $fields
-     * @return ActiveQuery
-     * @throws exceptions\FieldNotFoundException
      */
-    private function addField(ActiveQuery $query, array $fields): ActiveQuery
+    private function addField(ActiveQuery $query, array $fields): void
     {
         /** @var class-string<ActiveRecord> $modelClass */
         $modelClass = $query->modelClass;
         $model = $this->getModelInstance($modelClass);
 
         $columns = [];
-        if (empty($query->select)) {
+        if ($query->select === null || $query->select === []) {
             $columns[] = '*';
         }
         foreach ($fields as $field) {
             $columns[$field] = $model->getVirtualExpression($field);
         }
         $query->addSelect($columns);
-        return $query;
     }
 
+    /**
+     * @return $this
+     */
     public function withFields(string ...$fields): ActiveQuery
     {
-        return $this->addField($this, array_values($fields));
+        $this->addField($this, array_values($fields));
+        return $this;
     }
 }