From c26196587119c2dff954b7692f8a9e9dae6d642d Mon Sep 17 00:00:00 2001
From: Angel Fernando Quiroz Campos <angelfqc.18@gmail.com>
Date: Wed, 27 Nov 2019 17:11:20 -0500
Subject: [PATCH] MigrationMoodle: Add task for question categories - refs
 BT#15992

---
 plugin/migrationmoodle/admin.php              |  4 +
 plugin/migrationmoodle/lang/english.php       |  1 +
 .../src/Loader/QuestionCategoriesLoader.php   | 40 +++++++++
 .../src/Task/QuestionCategoriesTask.php       | 62 ++++++++++++++
 ...LoadedCourseFromQuestionCategoryLookup.php | 81 +++++++++++++++++++
 5 files changed, 188 insertions(+)
 create mode 100644 plugin/migrationmoodle/src/Loader/QuestionCategoriesLoader.php
 create mode 100644 plugin/migrationmoodle/src/Task/QuestionCategoriesTask.php
 create mode 100644 plugin/migrationmoodle/src/Transformer/Property/LoadedCourseFromQuestionCategoryLookup.php

diff --git a/plugin/migrationmoodle/admin.php b/plugin/migrationmoodle/admin.php
index 5ac9469f20..836fd55fca 100644
--- a/plugin/migrationmoodle/admin.php
+++ b/plugin/migrationmoodle/admin.php
@@ -104,6 +104,10 @@ $menu = [
         'action' => 'files_for_quizzes',
         'parent' => 21,
     ],
+    23 => [
+        'action' => 'question_categories',
+        'parent' => 21,
+    ],
 ];
 
 Display::display_header($plugin->get_title());
diff --git a/plugin/migrationmoodle/lang/english.php b/plugin/migrationmoodle/lang/english.php
index 5b161c31f6..c562ec04a0 100644
--- a/plugin/migrationmoodle/lang/english.php
+++ b/plugin/migrationmoodle/lang/english.php
@@ -30,3 +30,4 @@ $strings['CQuizTask'] = 'C Quiz';
 $strings['RoleAssignmentsTask'] = 'Role assignments';
 $strings['QuizzesTask'] = 'Quizzes';
 $strings['FilesForQuizzesTask'] = 'Files for quizzes';
+$strings['QuestionCategoriesTask'] = 'Question categories';
diff --git a/plugin/migrationmoodle/src/Loader/QuestionCategoriesLoader.php b/plugin/migrationmoodle/src/Loader/QuestionCategoriesLoader.php
new file mode 100644
index 0000000000..8a10b85830
--- /dev/null
+++ b/plugin/migrationmoodle/src/Loader/QuestionCategoriesLoader.php
@@ -0,0 +1,40 @@
+<?php
+/* For licensing terms, see /license.txt */
+
+namespace Chamilo\PluginBundle\MigrationMoodle\Loader;
+
+use Chamilo\PluginBundle\MigrationMoodle\Interfaces\LoaderInterface;
+
+/**
+ * Class QuestionCategoriesLoader.
+ *
+ * Loader for create a category for Chamilo quiz questions coming from a Moodle question category.
+ *
+ * @package Chamilo\PluginBundle\MigrationMoodle\Loader
+ */
+class QuestionCategoriesLoader implements LoaderInterface
+{
+    /**
+     * Load the data and return the ID inserted.
+     *
+     * @param array $incomingData
+     *
+     * @throws \Exception
+     *
+     * @return int
+     */
+    public function load(array $incomingData)
+    {
+        $category = new \TestCategory();
+        $category->name = $incomingData['name'];
+        $category->description = $incomingData['description'];
+
+        $id = $category->save($incomingData['c_id']);
+
+        if (false === $id) {
+            throw new \Exception("The quiz category \"{$incomingData['name']}\" already exists.");
+        }
+
+        return $id;
+    }
+}
diff --git a/plugin/migrationmoodle/src/Task/QuestionCategoriesTask.php b/plugin/migrationmoodle/src/Task/QuestionCategoriesTask.php
new file mode 100644
index 0000000000..e7e222308c
--- /dev/null
+++ b/plugin/migrationmoodle/src/Task/QuestionCategoriesTask.php
@@ -0,0 +1,62 @@
+<?php
+/* For licensing terms, see /license.txt */
+
+namespace Chamilo\PluginBundle\MigrationMoodle\Task;
+
+use Chamilo\PluginBundle\MigrationMoodle\Extractor\BaseExtractor;
+use Chamilo\PluginBundle\MigrationMoodle\Loader\QuestionCategoriesLoader;
+use Chamilo\PluginBundle\MigrationMoodle\Transformer\BaseTransformer;
+use Chamilo\PluginBundle\MigrationMoodle\Transformer\Property\LoadedCourseFromQuestionCategoryLookup;
+
+/**
+ * Class QuestionCategoriesTask.
+ *
+ * Task for create categories for Chamilo quiz questions coming from a Moodle questions categories.
+ *
+ * @package Chamilo\PluginBundle\MigrationMoodle\Task
+ */
+class QuestionCategoriesTask extends BaseTask
+{
+    /**
+     * @return array
+     */
+    public function getExtractConfiguration()
+    {
+        return [
+            'class' => BaseExtractor::class,
+            'query' => "SELECT qc.id, qc.name, qc.info, c.contextlevel, c.instanceid
+                FROM mdl_question_categories qc
+                INNER JOIN mdl_context c ON qc.contextid = c.id
+                WHERE c.contextlevel IN (50, 70)
+                    AND qc.parent != 0",
+        ];
+    }
+
+    /**
+     * @return array
+     */
+    public function getTransformConfiguration()
+    {
+        return [
+            'class' => BaseTransformer::class,
+            'map' => [
+                'c_id' => [
+                    'class' => LoadedCourseFromQuestionCategoryLookup::class,
+                    'properties' => ['contextlevel', 'instanceid']
+                ],
+                'name' => 'name',
+                'description' => 'info',
+            ],
+        ];
+    }
+
+    /**
+     * @return array
+     */
+    public function getLoadConfiguration()
+    {
+        return [
+            'class' => QuestionCategoriesLoader::class,
+        ];
+    }
+}
diff --git a/plugin/migrationmoodle/src/Transformer/Property/LoadedCourseFromQuestionCategoryLookup.php b/plugin/migrationmoodle/src/Transformer/Property/LoadedCourseFromQuestionCategoryLookup.php
new file mode 100644
index 0000000000..03c3277b52
--- /dev/null
+++ b/plugin/migrationmoodle/src/Transformer/Property/LoadedCourseFromQuestionCategoryLookup.php
@@ -0,0 +1,81 @@
+<?php
+/* For licensing terms, see /license.txt */
+
+namespace Chamilo\PluginBundle\MigrationMoodle\Transformer\Property;
+
+use Doctrine\DBAL\DBALException;
+use Doctrine\DBAL\FetchMode;
+
+/**
+ * Class LoadedCourseFromQuestionCategoryLookup.
+ *
+ * Lookup for a course ID loaded based on the context from a Moodle question category.
+ *
+ * @package Chamilo\PluginBundle\MigrationMoodle\Transformer\Property
+ */
+class LoadedCourseFromQuestionCategoryLookup extends LoadedCourseLookup
+{
+    /**
+     * @param array $data
+     *
+     * @throws \Exception
+     *
+     * @return mixed
+     */
+    public function transform(array $data)
+    {
+        $instanceId = $data['instanceid'];
+        $contextLevel = $data['contextlevel'];
+
+        $mCourseId = 0;
+
+        switch ($contextLevel) {
+            case 50: // course
+                $mCourseId = $instanceId;
+                break;
+            case 70: // module
+                $mCourseId = $this->searchInModuleContext($instanceId);
+                break;
+        }
+
+        if (empty($mCourseId)) {
+            throw new \Exception("Course not found for context $instanceId with level $contextLevel");
+        }
+
+        return parent::transform([$mCourseId]);
+    }
+
+    /**
+     * @param int $instanceId
+     *
+     * @throws \Exception
+     *
+     * @return int
+     */
+    private function searchInModuleContext($instanceId)
+    {
+        try {
+            $connection = \MigrationMoodlePlugin::create()->getConnection();
+        } catch (DBALException $e) {
+            throw new \Exception('Unable to start connection.', 0, $e);
+        }
+
+        $query = "SELECT course FROM mdl_course_modules WHERE id = ?";
+
+        try {
+            $statement = $connection->executeQuery($query, [$instanceId]);
+        } catch (DBALException $e) {
+            throw new \Exception("Unable to execute query \"$query\".", 0, $e);
+        }
+
+        $result = $statement->fetch(FetchMode::ASSOCIATIVE);
+
+        $connection->close();
+
+        if (false === $result) {
+            return 0;
+        }
+
+        return (int) $result['course'];
+    }
+}