Fix this issue

Author: SOHELAHMED7

src/lib/openapi/PropertySchema.php

@@ -196,7 +196,7 @@ private function initItemsReference():void
             return;
         }
         $this->refPointer = $items->getJsonReference()->getJsonPointer()->getPointer();
-        $this->uri = $this->property->getJsonReference()->getDocumentUri();
+        $this->uri = $items->getJsonReference()->getDocumentUri();
         if ($this->isRefPointerToSelf()) {
             $this->refSchema = $this->schema;
         } elseif ($this->isRefPointerToSchema()) {
@@ -267,7 +267,9 @@ public function getSelfTargetProperty():?PropertySchema
 
     public function isRefPointerToSchema():bool
     {
-        return $this->refPointer && strpos($this->refPointer, self::REFERENCE_PATH) === 0;
+        return $this->refPointer &&
+            ((strpos($this->refPointer, self::REFERENCE_PATH) === 0) ||
+                (str_ends_with($this->uri, '.yml')) || (str_ends_with($this->uri, '.yaml')));
     }
 
     public function isRefPointerToSelf():bool
@@ -303,16 +305,14 @@ public function getRefSchemaName():string
         $pattern = strpos($this->refPointer, '/properties/') !== false ?
             '~^'.self::REFERENCE_PATH.'(?<schemaName>.+)/properties/(?<propName>.+)$~'
             : '~^'.self::REFERENCE_PATH.'(?<schemaName>.+)$~';
+        $separateFilePattern = '/((\.\/)*)(?<schemaName>.+)(\.)(yml|yaml)(.*)/'; # https://github.com/php-openapi/yii2-openapi/issues/74
         if (!\preg_match($pattern, $this->refPointer, $matches)) {
-            $pattern = '/((\.\/)*)(?<schemaName>.+)(\.)(yml|yaml)(.*)/';
-//            $pattern = '~^(?<schemaName>.+)(\.+)(yaml+)(.*)$~';
-            if (strpos($this->uri, '#') !== false && !\preg_match($pattern, $this->uri, $matches)) {
-//                throw new InvalidDefinitionException('Invalid schema reference');
-            } else {
+            if (!\preg_match($separateFilePattern, $this->uri, $separateFilePatternMatches)) {
                 throw new InvalidDefinitionException('Invalid schema reference');
+            } else {
+                return $separateFilePatternMatches['schemaName'];
             }
         }
-        var_dump($matches);
         return $matches['schemaName'];
     }
 

tests/specs/issue_fix/74_invalid_schema_reference_error/Product.yaml

@@ -7,20 +7,12 @@ required:
   - id
   - vat_rate
 
-
 properties:
-
   id:
     type: integer
-    example: 12531
-    readOnly: true
-
-
   vat_rate:
     type: string
     enum:
       - standard
-      - reduced
-      - custom
       - none
     default: standard

tests/specs/issue_fix/74_invalid_schema_reference_error/index.yaml

@@ -20,13 +20,4 @@ components:
           #           $ref: '#/components/schemas/Product/properties/vat_rate' # issue is not observed
           $ref: './Product.yaml#/properties/vat_rate'  # issue is observed
     Product:
-      type: object
-      properties:
-        id:
-          type: integer
-        vat_rate:
-          type: string
-          enum:
-            - normal
-            - none
-          default: normal
+      $ref: ./Product.yaml