refactoring

Author: Bohdan Berezhniy

Model/Config.php

@@ -34,6 +34,7 @@ class Config
     const XML_PATH_GENERAL_LIST_PAGE_CONTAINER_SELECTOR = 'mfproductlabel/general/pl_selector';
 
     const XML_PATH_EXCLUDE_PAGE_TYPES = 'mfproductlabel/general/exclude_page_types';
+
     /**
      * Config constructor.
      * @param ScopeConfigInterface $scopeConfig
@@ -89,9 +90,13 @@ public function getConfig($path, $storeId = null)
         );
     }
 
+    /**
+     * @return array
+     */
     public function getExcludePageTypes(): array
     {
-        $pageTypes = $this->scopeConfig->getValue(self::XML_PATH_EXCLUDE_PAGE_TYPES);
+        $pageTypes = (string)$this->scopeConfig->getValue(self::XML_PATH_EXCLUDE_PAGE_TYPES);
+
         return explode(',', $pageTypes);
     }
 

Model/Config/Backend/ExcludePageType.php

@@ -57,9 +57,12 @@ public function afterRenderResult(
         ResponseInterface $response
     ) {
         $html = $response->getBody();
-        if ($this->config->isEnabled() && (false !== strpos($html, Html::COMMENT_PREFIX))
-            && !in_array($this->request->getFullActionName(),$this->config->getExcludePageTypes()))
-        {
+
+        if (
+            $this->config->isEnabled()
+            && !in_array($this->request->getFullActionName(), $this->config->getExcludePageTypes())
+            && (false !== strpos($html, Html::COMMENT_PREFIX))
+        ) {
             $response->setBody($this->htmlParser->execute($html));
         }
 

Plugin/Frontend/Magento/Framework/Controller/ResultInterface.php

@@ -35,10 +35,10 @@
                     <label>Product List Label Container</label>
                     <comment>Only one class that located above the product image!</comment>
                 </field>
-                <field id="exclude_page_types" translate="label" type="multiselect" sortOrder="20" showInDefault="1" showInWebsite="0" showInStore="0" canRestore="1">
-                    <label>Dont Use On Page</label>
-                    <backend_model>Magefan\ProductLabel\Model\Config\Backend\ExcludePageType</backend_model>
+                <field id="exclude_page_types" translate="label" type="multiselect" sortOrder="60" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
+                    <label>Don't Use On Pages</label>
                     <source_model>Magefan\ProductLabel\Model\Config\Source\PageType</source_model>
+                    <can_be_empty>1</can_be_empty>
                 </field>
             </group>
         </section>

etc/adminhtml/system.xml

@@ -16,6 +16,7 @@
                 <labels_per_product>1</labels_per_product>
                 <pp_selector>.fotorama__stage__shaft</pp_selector>
                 <pl_selector>.product-image-wrapper</pl_selector>
+                <exclude_page_types></exclude_page_types>
             </general>
         </mfproductlabel>