fix issue on php8

Author: landofcoder

Block/Latest.php

@@ -1,18 +1,18 @@
 <?php
 /**
  * Venustheme
- * 
+ *
  * NOTICE OF LICENSE
- * 
+ *
  * This source file is subject to the Venustheme.com license that is
  * available through the world-wide-web at this URL:
  * http://www.venustheme.com/license-agreement.html
- * 
+ *
  * DISCLAIMER
- * 
+ *
  * Do not edit or add to this file if you wish to upgrade this extension to newer
  * version in the future.
- * 
+ *
  * @category   Venustheme
  * @package    Ves_Blog
  * @copyright  Copyright (c) 2016 Venustheme (http://www.venustheme.com/)
@@ -57,11 +57,11 @@ class Latest extends \Magento\Framework\View\Element\Template
     protected $_resource;
 
     /**
-     * @param \Magento\Framework\View\Element\Template\Context $context     
-     * @param \Magento\Framework\Registry                      $registry    
-     * @param \Ves\Blog\Model\Post                             $postFactory 
-     * @param \Ves\Blog\Helper\Data                            $blogHelper  
-     * @param array                                            $data        
+     * @param \Magento\Framework\View\Element\Template\Context $context
+     * @param \Magento\Framework\Registry                      $registry
+     * @param \Ves\Blog\Model\Post                             $postFactory
+     * @param \Ves\Blog\Helper\Data                            $blogHelper
+     * @param array                                            $data
      */
     public function __construct(
     	\Magento\Framework\View\Element\Template\Context $context,
@@ -169,7 +169,7 @@ public function getCollection(){
      * @return $this
      */
     protected function _prepareLayout()
-    {	
+    {
     	$page_title = $this->getConfig('blog_latest_page/page_title');
     	$meta_description = $this->getConfig('blog_latest_page/meta_description');
     	$meta_keywords = $this->getConfig('blog_latest_page/meta_keywords');
@@ -178,13 +178,13 @@ protected function _prepareLayout()
         $this->pageConfig->addBodyClass('vesblog-page');
     	$this->pageConfig->addBodyClass('ves-bloglatest');
     	if($page_title){
-    		$this->pageConfig->getTitle()->set($page_title);   
+    		$this->pageConfig->getTitle()->set($page_title);
     	}
     	if($meta_keywords){
-    		$this->pageConfig->setKeywords($meta_keywords);   
+    		$this->pageConfig->setKeywords($meta_keywords);
     	}
     	if($meta_description){
-    		$this->pageConfig->setDescription($meta_description);   
+    		$this->pageConfig->setDescription($meta_description);
     	}
     	return parent::_prepareLayout();
     }
@@ -205,12 +205,12 @@ public function getToolbarBlock()
     public function getPostsBlock()
     {
         $collection = $this->getCollection();
-        $block = $this->_postsBlock; 
+        $block = $this->_postsBlock;
         $block->setData($this->getData())->setCollection($collection);
         $html = $block->toHtml();
         if ($html) {
             return $html;
-        }   
+        }
     }
 
     /**
@@ -246,7 +246,8 @@ protected function _beforeToHtml()
         ->setCurPage(1);
 
         $excluedCategories = $this->_blogHelper->getConfig("blog_latest_page/exclued_categories");
-        if (trim($excluedCategories)) {
+        $excluedCategories = $excluedCategories ? trim($excluedCategories) : "";
+        if ($excluedCategories) {
             $postCollection->getSelect()->joinLeft(
                 [
                     'cat' => $this->_resource->getTableName('ves_blog_post_category')],
@@ -258,7 +259,7 @@ protected function _beforeToHtml()
                     'category_id' => 'category_id'
                 ]
                 )
-            ->where('cat.category_id NOT IN (' . trim($excluedCategories) . ')');
+            ->where('cat.category_id NOT IN (' . $excluedCategories. ')');
         }
         $postCollection->getSelect()->order("main_table.creation_time " . $orderby);
 
@@ -272,4 +273,4 @@ protected function _beforeToHtml()
         }
         return parent::_beforeToHtml();
     }
-}
+}