From dceb5164e1adf284b0cb075c71ed1baa5497f10f Mon Sep 17 00:00:00 2001
From: nosolored <nosolored@gmail.com>
Date: Mon, 30 May 2016 10:49:46 +0200
Subject: [PATCH 1/2] Add index to accelerate query - refs #8200

---
 app/Migrations/Schema/V110/Version20151221150100.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/app/Migrations/Schema/V110/Version20151221150100.php b/app/Migrations/Schema/V110/Version20151221150100.php
index db9aeb051e..18492e3b2b 100644
--- a/app/Migrations/Schema/V110/Version20151221150100.php
+++ b/app/Migrations/Schema/V110/Version20151221150100.php
@@ -16,6 +16,9 @@ class Version20151221150100 extends AbstractMigrationChamilo
      */
     public function up(Schema $schema)
     {
+        $this->addSql(" 
+            ALTER TABLE c_quiz_answer ADD INDEX idx_quiz_qid (question_id)");
+
         $this->addSql("
             UPDATE track_e_attempt a
             INNER JOIN c_quiz_answer qa

From ce7f036ff4b5ab00f327b52496101a39ef141359 Mon Sep 17 00:00:00 2001
From: nosolored <nosolored@gmail.com>
Date: Thu, 7 Jul 2016 13:34:04 +0200
Subject: [PATCH 2/2] Fix- Add index to accelerate query - refs #8200

---
 .../Schema/V110/Version20151221150100.php     |  3 --
 .../Schema/V110/Version20160707131900.php     | 29 +++++++++++++++++++
 .../CourseBundle/Entity/CQuizAnswer.php       |  3 +-
 3 files changed, 31 insertions(+), 4 deletions(-)
 create mode 100644 app/Migrations/Schema/V110/Version20160707131900.php

diff --git a/app/Migrations/Schema/V110/Version20151221150100.php b/app/Migrations/Schema/V110/Version20151221150100.php
index 18492e3b2b..db9aeb051e 100644
--- a/app/Migrations/Schema/V110/Version20151221150100.php
+++ b/app/Migrations/Schema/V110/Version20151221150100.php
@@ -16,9 +16,6 @@ class Version20151221150100 extends AbstractMigrationChamilo
      */
     public function up(Schema $schema)
     {
-        $this->addSql(" 
-            ALTER TABLE c_quiz_answer ADD INDEX idx_quiz_qid (question_id)");
-
         $this->addSql("
             UPDATE track_e_attempt a
             INNER JOIN c_quiz_answer qa
diff --git a/app/Migrations/Schema/V110/Version20160707131900.php b/app/Migrations/Schema/V110/Version20160707131900.php
new file mode 100644
index 0000000000..436dd0ff06
--- /dev/null
+++ b/app/Migrations/Schema/V110/Version20160707131900.php
@@ -0,0 +1,29 @@
+<?php
+/* For licensing terms, see /license.txt */
+
+namespace Application\Migrations\Schema\V110;
+
+use Application\Migrations\AbstractMigrationChamilo;
+use Doctrine\DBAL\Schema\Schema;
+
+/**
+ * Fix c_quiz_answer's correct field for id_auto
+ */
+class Version20160707131900 extends AbstractMigrationChamilo
+{
+    /**
+     * @param Schema $schema
+     */
+    public function up(Schema $schema)
+    {
+        $this->addSql(" 
+            ALTER TABLE c_quiz_answer ADD INDEX idx_cqa_q (question_id)");
+    }
+
+    /**
+     * @param Schema $schema
+     */
+    public function down(Schema $schema)
+    {
+    }
+}
diff --git a/src/Chamilo/CourseBundle/Entity/CQuizAnswer.php b/src/Chamilo/CourseBundle/Entity/CQuizAnswer.php
index 3b7044c80d..45e8c836c1 100644
--- a/src/Chamilo/CourseBundle/Entity/CQuizAnswer.php
+++ b/src/Chamilo/CourseBundle/Entity/CQuizAnswer.php
@@ -11,7 +11,8 @@ use Doctrine\ORM\Mapping as ORM;
  * @ORM\Table(
  *  name="c_quiz_answer",
  *  indexes={
- *      @ORM\Index(name="c_id", columns={"c_id"})
+ *      @ORM\Index(name="c_id", columns={"c_id"}),
+ *      @ORM\Index(name="idx_cqa_q", columns={"question_id"})
  *  }
  * )
  * @ORM\Entity