From 59ffa7c5d44224567d1a9b77da036db0ebb684cf Mon Sep 17 00:00:00 2001
From: Angel Fernando Quiroz Campos <angelfqc.18@gmail.com>
Date: Fri, 21 Dec 2018 11:53:26 -0500
Subject: [PATCH] Add warning when editing question added from question pool
 #2565

---
 main/exercise/admin.php          | 10 ++++++++++
 main/exercise/question.class.php | 22 ++++++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/main/exercise/admin.php b/main/exercise/admin.php
index 14bc37cce0..c458b720c7 100755
--- a/main/exercise/admin.php
+++ b/main/exercise/admin.php
@@ -366,6 +366,16 @@ if ($inATest) {
     if ($objExercise->added_in_lp()) {
         echo Display::return_message(get_lang('AddedToLPCannotBeAccessed'), 'warning');
     }
+
+    if ($editQuestion && $objQuestion->existsInAnotherExercises()) {
+        echo Display::return_message(
+            Display::returnFontAwesomeIcon('exclamation-triangle"')
+                .get_lang('ThisQuestionExistsInAnotherExercisesWarning'),
+            'warning',
+            false
+        );
+    }
+
     echo '<div class="alert alert-info">';
     echo sprintf(
         get_lang('XQuestionsWithTotalScoreY'),
diff --git a/main/exercise/question.class.php b/main/exercise/question.class.php
index 13901524f5..28bb422829 100755
--- a/main/exercise/question.class.php
+++ b/main/exercise/question.class.php
@@ -2373,4 +2373,26 @@ abstract class Question
 
         return false;
     }
+
+    /**
+     * Check if this question exists in another exercise.
+     *
+     * @throws \Doctrine\ORM\Query\QueryException
+     *
+     * @return mixed
+     */
+    public function existsInAnotherExercises()
+    {
+        $em = Database::getManager();
+
+        $count = $em
+            ->createQuery('
+                SELECT COUNT(qq.iid) FROM ChamiloCourseBundle:CQuizRelQuestion qq
+                WHERE qq.questionId = :id
+            ')
+            ->setParameters(['id' => (int) $this->id])
+            ->getSingleScalarResult();
+
+        return $count > 1;
+    }
 }