From e401f68529e8af9f5c17396647c0516809430fd6 Mon Sep 17 00:00:00 2001
From: Sachintechjoomla <sachin_s@techjoomla.com>
Date: Tue, 4 Jun 2024 10:00:56 +0530
Subject: [PATCH] Issue #220502 Fix: We cannot access 'Notification Templates'
 in backend -> An error has occurred. 0 Class "JError" not found

---
 .../admin/views/logs/view.html.php                   |  3 ++-
 .../admin/views/notification/view.html.php           |  4 ++--
 .../admin/views/notifications/view.html.php          |  4 ++--
 src/com_tjnotifications/install.tjnotifications.php  | 12 +++++++-----
 4 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/src/com_tjnotifications/admin/views/logs/view.html.php b/src/com_tjnotifications/admin/views/logs/view.html.php
index 6b127247..292ea27e 100644
--- a/src/com_tjnotifications/admin/views/logs/view.html.php
+++ b/src/com_tjnotifications/admin/views/logs/view.html.php
@@ -50,7 +50,8 @@ public function display($tpl = null)
 		// Check for errors.
 		if (count($errors = $this->get('Errors')))
 		{
-			JError::raiseError(500, implode('<br />', $errors));
+			$app = Factory::getApplication();
+			$app->enqueueMessage(implode('<br />', $errors), 'error');
 
 			return false;
 		}
diff --git a/src/com_tjnotifications/admin/views/notification/view.html.php b/src/com_tjnotifications/admin/views/notification/view.html.php
index 301c0fcf..c964a2fe 100644
--- a/src/com_tjnotifications/admin/views/notification/view.html.php
+++ b/src/com_tjnotifications/admin/views/notification/view.html.php
@@ -56,7 +56,7 @@ public function display($tpl = null)
 		if (empty($this->user->authorise('core.create', 'com_tjnotifications')) || empty($this->user->authorise('core.edit', 'com_tjnotifications')))
 		{
 			$msg = Text::_('JERROR_ALERTNOAUTHOR');
-			JError::raiseError(403, $msg);
+			$this->app->enqueueMessage($msg, 'error');
 			$this->app->redirect(Route::_('index.php?Itemid=0', false));
 		}
 
@@ -74,7 +74,7 @@ public function display($tpl = null)
 		// Check for errors.
 		if (count($errors = $this->get('Errors')))
 		{
-			JError::raiseError(500, implode('<br />', $errors));
+			$this->app->enqueueMessage(implode('<br />', $errors), 'error');
 
 			return false;
 		}
diff --git a/src/com_tjnotifications/admin/views/notifications/view.html.php b/src/com_tjnotifications/admin/views/notifications/view.html.php
index e668c2df..cf218afc 100644
--- a/src/com_tjnotifications/admin/views/notifications/view.html.php
+++ b/src/com_tjnotifications/admin/views/notifications/view.html.php
@@ -62,7 +62,7 @@ public function display($tpl = null)
 		if (empty($this->user->authorise('core.viewlist', 'com_tjnotifications')))
 		{
 			$msg = Text::_('JERROR_ALERTNOAUTHOR');
-			JError::raiseError(403, $msg);
+			$this->app->enqueueMessage($msg, 'error');
 			$this->app->redirect(Route::_('index.php?Itemid=0', false));
 		}
 
@@ -78,7 +78,7 @@ public function display($tpl = null)
 		// Check for errors.
 		if (count($errors = $this->get('Errors')))
 		{
-			JError::raiseError(500, implode('<br />', $errors));
+			$this->app->enqueueMessage(implode('<br />', $errors), 'error');
 
 			return false;
 		}
diff --git a/src/com_tjnotifications/install.tjnotifications.php b/src/com_tjnotifications/install.tjnotifications.php
index 15eef954..b544125e 100644
--- a/src/com_tjnotifications/install.tjnotifications.php
+++ b/src/com_tjnotifications/install.tjnotifications.php
@@ -265,7 +265,8 @@ public function installSqlFiles($parent)
 
 						if (!$db->execute())
 						{
-							JError::raiseWarning(1, Text::sprintf('JLIB_INSTALLER_ERROR_SQL_ERROR', $db->stderr(true)));
+							$app = Factory::getApplication();
+							$app->enqueueMessage(Text::sprintf('JLIB_INSTALLER_ERROR_SQL_ERROR', $db->stderr(true)), 'error');
 
 							return false;
 						}
@@ -294,6 +295,7 @@ public function installSqlFiles($parent)
 	 */
 	public function fixTemplateTable($db, $dbprefix, $config)
 	{
+		$app = Factory::getApplication();
 		$query = "SHOW COLUMNS FROM #__tj_notification_templates WHERE `Field` = 'title'";
 		$db->setQuery($query);
 		$check = $db->loadResult();
@@ -305,7 +307,7 @@ public function fixTemplateTable($db, $dbprefix, $config)
 
 			if (!$db->execute())
 			{
-				JError::raiseError(500, $db->stderr());
+				$app->enqueueMessage($db->stderr(), 'error');
 			}
 		}
 
@@ -320,7 +322,7 @@ public function fixTemplateTable($db, $dbprefix, $config)
 
 			if (!$db->execute())
 			{
-				JError::raiseError(500, $db->stderr());
+				$app->enqueueMessage($db->stderr(), 'error');
 			}
 		}
 
@@ -335,7 +337,7 @@ public function fixTemplateTable($db, $dbprefix, $config)
 
 			if (!$db->execute())
 			{
-				JError::raiseError(500, $db->stderr());
+				$app->enqueueMessage($db->stderr(), 'error');
 			}
 		}
 
@@ -350,7 +352,7 @@ public function fixTemplateTable($db, $dbprefix, $config)
 
 			if (!$db->execute())
 			{
-				JError::raiseError(500, $db->stderr());
+				$app->enqueueMessage($db->stderr(), 'error');
 			}
 		}
 	}