From 6cedc657791774c45da6f239ad0344d3cc58355b Mon Sep 17 00:00:00 2001
From: jitendrapurohit <jitendra@fuzion.co.nz>
Date: Mon, 25 Oct 2021 12:01:41 +0530
Subject: [PATCH] Fix fatal error in joomla with civicrm task query param

---
 CRM/Contribute/Task.php      | 4 ++--
 CRM/Core/Controller/Task.php | 5 ++++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/CRM/Contribute/Task.php b/CRM/Contribute/Task.php
index b95755c481..9f54f2258d 100644
--- a/CRM/Contribute/Task.php
+++ b/CRM/Contribute/Task.php
@@ -91,7 +91,7 @@ class CRM_Contribute_Task extends CRM_Core_Task {
           'result' => FALSE,
           'title_single_mode' => ts('Send Receipt'),
           'name' => ts('Send Receipt'),
-          'url' => 'civicrm/contribute/task?reset=1&task=receipt',
+          'url' => 'civicrm/contribute/task?reset=1&task_item=receipt',
           'key' => 'receipt',
           'icon' => 'fa-envelope-o',
           'filters' => ['contribution_status_id' => [CRM_Core_PseudoConstant::getKey('CRM_Contribute_BAO_Contribution', 'contribution_status_id', 'Completed')]],
@@ -101,7 +101,7 @@ class CRM_Contribute_Task extends CRM_Core_Task {
           'title' => ts('Thank-you letters - print or email'),
           'class' => 'CRM_Contribute_Form_Task_PDFLetter',
           'result' => FALSE,
-          'url' => 'civicrm/contribute/task?reset=1&task=letter',
+          'url' => 'civicrm/contribute/task?reset=1&task_item=letter',
           'key' => 'letter',
           'name' => ts('Send Letter'),
           'is_single_mode' => TRUE,
diff --git a/CRM/Core/Controller/Task.php b/CRM/Core/Controller/Task.php
index 5af9740b65..02674c6a40 100644
--- a/CRM/Core/Controller/Task.php
+++ b/CRM/Core/Controller/Task.php
@@ -72,7 +72,10 @@ abstract class CRM_Core_Controller_Task extends CRM_Core_Controller {
    * @throws \CRM_Core_Exception
    */
   protected function getTaskClass(): array {
-    $task = CRM_Utils_Request::retrieve('task', 'Alphanumeric', $this, TRUE);
+    $task = CRM_Utils_Request::retrieve('task_item', 'Alphanumeric', $this);
+    if (empty($task)) {
+      $task = CRM_Utils_Request::retrieve('task', 'Alphanumeric', $this, TRUE);
+    }
     foreach ($this->getAvailableTasks() as $taskAction) {
       if (($taskAction['key'] ?? '') === $task) {
         return (array) $taskAction['class'];
-- 
2.25.1