Auth::updateCourseCategory() - Code Metrics - Inspection of "LOCAL: changes made locally and probably already i..." - chamilo/chamilo-lms - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — webservicelpcreate ( d8cb35 )

unknown

created 2021-09-03 13:18 UTC

Auth::updateCourseCategory() A

↳ Parent: Auth

Complexity

Conditions	2
Paths	2

Size

Total Lines	23
Code Lines	16

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	2
eloc	16
nc	2
nop	2
dl	0
loc	23
rs	9.7333
c	0
b	0
f	0

<?php

/* For licensing terms, see /license.txt */

/**
 * Class Auth
 * Auth can be used to instantiate objects or as a library to manage courses
 * This file contains a class used like library provides functions for auth tool.
 * It's also used like model to courses_controller (MVC pattern).
 *
 * @author Christian Fasanando <[email protected]>
 */
class Auth
{
    /**
     * Constructor.
     */
    public function __construct()
    {
    }

    /**
     * This function get all the courses in the particular user category.
     *
     * @return array
     */
    public function getCoursesInCategory()
    {
        $user_id = api_get_user_id();

        // table definitions
        $TABLECOURS = Database::get_main_table(TABLE_MAIN_COURSE);
        $TABLECOURSUSER = Database::get_main_table(TABLE_MAIN_COURSE_USER);
        $avoidCoursesCondition = CoursesAndSessionsCatalog::getAvoidCourseCondition();
        $visibilityCondition = CourseManager::getCourseVisibilitySQLCondition('course', true);

        $sql = "SELECT
                    course.id as real_id,
                    course.code, course.visual_code, course.subscribe subscr, course.unsubscribe unsubscr,
                    course.title title, course.tutor_name tutor, course.directory, course_rel_user.status status,
                    course_rel_user.sort sort, course_rel_user.user_course_cat user_course_cat
                FROM $TABLECOURS course,
                $TABLECOURSUSER  course_rel_user
                WHERE
                    course.id = course_rel_user.c_id AND
                    course_rel_user.user_id = '".$user_id."' AND
                    course_rel_user.relation_type <> ".COURSE_RELATION_TYPE_RRHH."
                    $avoidCoursesCondition
                    $visibilityCondition
                ORDER BY course_rel_user.user_course_cat, course_rel_user.sort ASC";
        $result = Database::query($sql);
        $data = [];
        while ($course = Database::fetch_array($result)) {
            $data[$course['user_course_cat']][] = $course;
        }

        return $data;
    }

    /**
     * stores  the changes in a course category
     * (moving a course to a different course category).
     *
     * @param int $courseId
     * @param int       Category id
     *
     * @return bool True if it success
     */
    public function updateCourseCategory($courseId, $newcategory)
    {
        $courseId = (int) $courseId;
        $newcategory = (int) $newcategory;
        $current_user = api_get_user_id();

        $table = Database::get_main_table(TABLE_MAIN_COURSE_USER);
        $max_sort_value = api_max_sort_value($newcategory, $current_user);
        $sql = "UPDATE $table SET
                    user_course_cat='".$newcategory."',
                    sort='".($max_sort_value + 1)."'
                WHERE
                    c_id ='".$courseId."' AND
                    user_id='".$current_user."' AND
                    relation_type<>".COURSE_RELATION_TYPE_RRHH;
        $resultQuery = Database::query($sql);

        $result = false;
        if (Database::affected_rows($resultQuery)) {
            $result = true;
        }

        return $result;
    }

    /**
     * moves the course one place up or down.
     *
     * @param string    Direction (up/down)
     * @param string    Course code
     * @param int       Category id
     *
     * @return bool True if it success
     */
    public function move_course($direction, $course2move, $category)
    {
        // definition of tables
        $table = Database::get_main_table(TABLE_MAIN_COURSE_USER);

        $current_user_id = api_get_user_id();
        $all_user_courses = CourseManager::getCoursesByUserCourseCategory($current_user_id);

        // we need only the courses of the category we are moving in
        $user_courses = [];
        foreach ($all_user_courses as $key => $course) {
            if ($course['user_course_category'] == $category) {
                $user_courses[] = $course;
            }
        }

        $target_course = [];
        foreach ($user_courses as $count => $course) {
            if ($course2move == $course['code']) {
                // source_course is the course where we clicked the up or down icon
                $source_course = $course;
                // target_course is the course before/after the source_course (depending on the up/down icon)
                if ($direction == 'up') {
                    $target_course = $user_courses[$count - 1];
                } else {
                    $target_course = $user_courses[$count + 1];
                }
                break;
            }
        }

        $result = false;
        if (count($target_course) > 0 && count($source_course) > 0) {

            $courseInfo = api_get_course_info($source_course['code']);
            $courseId = $courseInfo['real_id'];

            $targetCourseInfo = api_get_course_info($target_course['code']);
            $targetCourseId = $targetCourseInfo['real_id'];

            $sql = "UPDATE $table
                    SET sort='".$target_course['sort']."'
                    WHERE
                        c_id = '".$courseId."' AND
                        user_id = '".$current_user_id."' AND
                        relation_type<>".COURSE_RELATION_TYPE_RRHH;

            $result1 = Database::query($sql);

            $sql = "UPDATE $table SET sort='".$source_course['sort']."'
                    WHERE
                        c_id ='".$targetCourseId."' AND
                        user_id='".$current_user_id."' AND
                        relation_type<>".COURSE_RELATION_TYPE_RRHH;

            $result2 = Database::query($sql);

            if (Database::affected_rows($result1) && Database::affected_rows($result2)) {
                $result = true;
            }
        }

        return $result;
    }

    /**
     * Moves the course one place up or down.
     *
     * @param string $direction     Direction up/down
     * @param string $category2move Category id
     *
     * @return bool True If it success
     */
    public function move_category($direction, $category2move)
    {
        $userId = api_get_user_id();
        $userCategories = CourseManager::get_user_course_categories($userId);
        $categories = array_values($userCategories);

        $previous = null;
        $target_category = [];
        foreach ($categories as $key => $category) {
            $category_id = $category['id'];
            if ($category2move == $category_id) {
                // source_course is the course where we clicked the up or down icon
                $source_category = $userCategories[$category2move];
                // target_course is the course before/after the source_course (depending on the up/down icon)
                if ($direction === 'up') {
                    if (isset($categories[$key - 1])) {
                        $target_category = $userCategories[$categories[$key - 1]['id']];
                    }
                } else {
                    if (isset($categories[$key + 1])) {
                        $target_category = $userCategories[$categories[$key + 1]['id']];
                    }
                }
            }
        }

        $result = false;
        if (count($target_category) > 0 && count($source_category) > 0) {

            $table = Database::get_main_table(TABLE_USER_COURSE_CATEGORY);
            $sql = "UPDATE $table SET
                    sort = '".Database::escape_string($target_category['sort'])."'
                    WHERE id='".intval($source_category['id'])."' AND user_id='".$userId."'";
            $resultFirst = Database::query($sql);
            $sql = "UPDATE $table SET
                    sort = '".Database::escape_string($source_category['sort'])."'
                    WHERE id='".intval($target_category['id'])."' AND user_id='".$userId."'";
            $resultSecond = Database::query($sql);
            if (Database::affected_rows($resultFirst) && Database::affected_rows($resultSecond)) {
                $result = true;
            }
        }

        return $result;
    }

    /**
     * Updates the user course category in the chamilo_user database.
     *
     * @param string  Category title
     * @param int     Category id
     *
     * @return bool True if it success
     */
    public function store_edit_course_category($title, $category_id)
    {
        $title = Database::escape_string($title);
        $category_id = (int) $category_id;
        $result = false;
        $table = Database::get_main_table(TABLE_USER_COURSE_CATEGORY);
        $sql = "UPDATE $table
                SET title='".api_htmlentities($title, ENT_QUOTES, api_get_system_encoding())."'
                WHERE id='".$category_id."'";
        $resultQuery = Database::query($sql);
        if (Database::affected_rows($resultQuery)) {
            $result = true;
        }

        return $result;
    }

    /**
     * deletes a course category and moves all the courses that were in this category to main category.
     *
     * @param int     Category id
     *
     * @return bool True if it success
     */
    public function delete_course_category($category_id)
    {
        $current_user_id = api_get_user_id();
        $tucc = Database::get_main_table(TABLE_USER_COURSE_CATEGORY);
        $TABLECOURSUSER = Database::get_main_table(TABLE_MAIN_COURSE_USER);
        $category_id = (int) $category_id;
        $result = false;
        $sql = "DELETE FROM $tucc
                WHERE
                    id='".$category_id."' AND
                    user_id='".$current_user_id."'";
        $resultQuery = Database::query($sql);
        if (Database::affected_rows($resultQuery)) {
            $result = true;
        }
        $sql = "UPDATE $TABLECOURSUSER
                SET user_course_cat='0'
                WHERE
                    user_course_cat='".$category_id."' AND
                    user_id='".$current_user_id."' AND
                    relation_type<>".COURSE_RELATION_TYPE_RRHH." ";
        Database::query($sql);

        return $result;
    }

    /**
     * @param int $categoryId
     *
     * @return array|mixed
     */
    public function getUserCourseCategory($categoryId)
    {
        $userId = api_get_user_id();
        $tucc = Database::get_main_table(TABLE_USER_COURSE_CATEGORY);
        $categoryId = (int) $categoryId;

        $sql = "SELECT * FROM $tucc
                WHERE
                    id= $categoryId AND
                    user_id= $userId";
        $resultQuery = Database::query($sql);

        return Database::fetch_array($resultQuery, 'ASSOC');
    }

    /**
     * unsubscribe the user from a given course.
     *
     * @param string $course_code
     *
     * @return bool True if it success
     */
    public function remove_user_from_course($course_code)
    {
        $tbl_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);

        // protect variables
        $current_user_id = api_get_user_id();
        $course_code = Database::escape_string($course_code);
        $result = true;

        $courseInfo = api_get_course_info($course_code);
        $courseId = $courseInfo['real_id'];

        // we check (once again) if the user is not course administrator
        // because the course administrator cannot unsubscribe himself
        // (s)he can only delete the course
        $sql = "SELECT * FROM $tbl_course_user
                WHERE
                    user_id='".$current_user_id."' AND
                    c_id ='".$courseId."' AND
                    status='1' ";
        $result_check = Database::query($sql);
        $number_of_rows = Database::num_rows($result_check);
        if ($number_of_rows > 0) {
            $result = false;
        }

        CourseManager::unsubscribe_user($current_user_id, $course_code);

        return $result;
    }

    /**
     * stores the user course category in the chamilo_user database.
     *
     * @param string  Category title
     *
     * @return bool True if it success
     */
    public function store_course_category($category_title)
    {
        $table = Database::get_main_table(TABLE_USER_COURSE_CATEGORY);

        // protect data
        $current_user_id = api_get_user_id();
        $category_title = Database::escape_string($category_title);

        // step 1: we determine the max value of the user defined course categories
        $sql = "SELECT sort FROM $table
                WHERE user_id='".$current_user_id."'
                ORDER BY sort DESC";
        $rs_sort = Database::query($sql);
        $maxsort = Database::fetch_array($rs_sort);
        $nextsort = $maxsort['sort'] + 1;

        // step 2: we check if there is already a category with this name,
        // if not we store it, else we give an error.
        $sql = "SELECT * FROM $table
                WHERE
                    user_id='".$current_user_id."' AND
                    title='".$category_title."'
                ORDER BY sort DESC";
        $rs = Database::query($sql);

        $result = false;
        if (Database::num_rows($rs) == 0) {
            $sql = "INSERT INTO $table (user_id, title,sort)
                    VALUES ('".$current_user_id."', '".api_htmlentities(
                    $category_title,
                    ENT_QUOTES,
                    api_get_system_encoding()
                )."', '".$nextsort."')";
            $resultQuery = Database::query($sql);
            if (Database::affected_rows($resultQuery)) {
                $result = true;
            }
        }

        return $result;
    }
}


1			<?php
2
3			/* For licensing terms, see /license.txt */
4
5			/**
6			* Class Auth
7			* Auth can be used to instantiate objects or as a library to manage courses
8			* This file contains a class used like library provides functions for auth tool.
9			* It's also used like model to courses_controller (MVC pattern).
10			*
11			* @author Christian Fasanando <[email protected]>
12			*/
13			class Auth
14			{
15			/**
16			* Constructor.
17			*/
18			public function __construct()
19			{
20			}
21
22			/**
23			* This function get all the courses in the particular user category.
24			*
25			* @return array
26			*/
27			public function getCoursesInCategory()
28			{
29			$user_id = api_get_user_id();
30
31			// table definitions
32			$TABLECOURS = Database::get_main_table(TABLE_MAIN_COURSE);
33			$TABLECOURSUSER = Database::get_main_table(TABLE_MAIN_COURSE_USER);
34			$avoidCoursesCondition = CoursesAndSessionsCatalog::getAvoidCourseCondition();
35			$visibilityCondition = CourseManager::getCourseVisibilitySQLCondition('course', true);
36
37			$sql = "SELECT
38			course.id as real_id,
39			course.code, course.visual_code, course.subscribe subscr, course.unsubscribe unsubscr,
40			course.title title, course.tutor_name tutor, course.directory, course_rel_user.status status,
41			course_rel_user.sort sort, course_rel_user.user_course_cat user_course_cat
42			FROM $TABLECOURS course,
43			$TABLECOURSUSER course_rel_user
44			WHERE
45			course.id = course_rel_user.c_id AND
46			course_rel_user.user_id = '".$user_id."' AND
47			course_rel_user.relation_type <> ".COURSE_RELATION_TYPE_RRHH."
48			$avoidCoursesCondition
49			$visibilityCondition
50			ORDER BY course_rel_user.user_course_cat, course_rel_user.sort ASC";
51			$result = Database::query($sql);
52			$data = [];
53			while ($course = Database::fetch_array($result)) {
54			$data[$course['user_course_cat']][] = $course;
55			}
56
57			return $data;
58			}
59
60			/**
61			* stores the changes in a course category
62			* (moving a course to a different course category).
63			*
64			* @param int $courseId
65			* @param int Category id
66			*
67			* @return bool True if it success
68			*/
69			public function updateCourseCategory($courseId, $newcategory)
70			{
71			$courseId = (int) $courseId;
72			$newcategory = (int) $newcategory;
73			$current_user = api_get_user_id();
74
75			$table = Database::get_main_table(TABLE_MAIN_COURSE_USER);
76			$max_sort_value = api_max_sort_value($newcategory, $current_user);
77			$sql = "UPDATE $table SET
78			user_course_cat='".$newcategory."',
79			sort='".($max_sort_value + 1)."'
80			WHERE
81			c_id ='".$courseId."' AND
82			user_id='".$current_user."' AND
83			relation_type<>".COURSE_RELATION_TYPE_RRHH;
84			$resultQuery = Database::query($sql);
85
86			$result = false;
87			if (Database::affected_rows($resultQuery)) {
88			$result = true;
89			}
90
91			return $result;
92			}
93
94			/**
95			* moves the course one place up or down.
96			*
97			* @param string Direction (up/down)
98			* @param string Course code
99			* @param int Category id
100			*
101			* @return bool True if it success
102			*/
103			public function move_course($direction, $course2move, $category)
104			{
105			// definition of tables
106			$table = Database::get_main_table(TABLE_MAIN_COURSE_USER);
107
108			$current_user_id = api_get_user_id();
109			$all_user_courses = CourseManager::getCoursesByUserCourseCategory($current_user_id);
110
111			// we need only the courses of the category we are moving in
112			$user_courses = [];
113			foreach ($all_user_courses as $key => $course) {
114			if ($course['user_course_category'] == $category) {
115			$user_courses[] = $course;
116			}
117			}
118
119			$target_course = [];
120			foreach ($user_courses as $count => $course) {
121			if ($course2move == $course['code']) {
122			// source_course is the course where we clicked the up or down icon
123			$source_course = $course;
124			// target_course is the course before/after the source_course (depending on the up/down icon)
125			if ($direction == 'up') {
126			$target_course = $user_courses[$count - 1];
127			} else {
128			$target_course = $user_courses[$count + 1];
129			}
130			break;
131			}
132			}
133
134			$result = false;
135			if (count($target_course) > 0 && count($source_course) > 0) {
			0 ignored issues – show Comprehensibility Best Practice introduced 2018-01-05 13:33 UTC by Report Bug Copy Issue Report The variable `$source_course` does not seem to be defined for all execution paths leading up to this point. Loading history...
136			$courseInfo = api_get_course_info($source_course['code']);
137			$courseId = $courseInfo['real_id'];
138
139			$targetCourseInfo = api_get_course_info($target_course['code']);
140			$targetCourseId = $targetCourseInfo['real_id'];
141
142			$sql = "UPDATE $table
143			SET sort='".$target_course['sort']."'
144			WHERE
145			c_id = '".$courseId."' AND
146			user_id = '".$current_user_id."' AND
147			relation_type<>".COURSE_RELATION_TYPE_RRHH;
148
149			$result1 = Database::query($sql);
150
151			$sql = "UPDATE $table SET sort='".$source_course['sort']."'
152			WHERE
153			c_id ='".$targetCourseId."' AND
154			user_id='".$current_user_id."' AND
155			relation_type<>".COURSE_RELATION_TYPE_RRHH;
156
157			$result2 = Database::query($sql);
158
159			if (Database::affected_rows($result1) && Database::affected_rows($result2)) {
160			$result = true;
161			}
162			}
163
164			return $result;
165			}
166
167			/**
168			* Moves the course one place up or down.
169			*
170			* @param string $direction Direction up/down
171			* @param string $category2move Category id
172			*
173			* @return bool True If it success
174			*/
175			public function move_category($direction, $category2move)
176			{
177			$userId = api_get_user_id();
178			$userCategories = CourseManager::get_user_course_categories($userId);
179			$categories = array_values($userCategories);
180
181			$previous = null;
182			$target_category = [];
183			foreach ($categories as $key => $category) {
184			$category_id = $category['id'];
185			if ($category2move == $category_id) {
186			// source_course is the course where we clicked the up or down icon
187			$source_category = $userCategories[$category2move];
188			// target_course is the course before/after the source_course (depending on the up/down icon)
189			if ($direction === 'up') {
190			if (isset($categories[$key - 1])) {
191			$target_category = $userCategories[$categories[$key - 1]['id']];
192			}
193			} else {
194			if (isset($categories[$key + 1])) {
195			$target_category = $userCategories[$categories[$key + 1]['id']];
196			}
197			}
198			}
199			}
200
201			$result = false;
202			if (count($target_category) > 0 && count($source_category) > 0) {
			0 ignored issues – show Comprehensibility Best Practice introduced 2018-01-05 13:33 UTC by Report Bug Copy Issue Report The variable `$source_category` does not seem to be defined for all execution paths leading up to this point. Loading history...
203			$table = Database::get_main_table(TABLE_USER_COURSE_CATEGORY);
204			$sql = "UPDATE $table SET
205			sort = '".Database::escape_string($target_category['sort'])."'
206			WHERE id='".intval($source_category['id'])."' AND user_id='".$userId."'";
207			$resultFirst = Database::query($sql);
208			$sql = "UPDATE $table SET
209			sort = '".Database::escape_string($source_category['sort'])."'
210			WHERE id='".intval($target_category['id'])."' AND user_id='".$userId."'";
211			$resultSecond = Database::query($sql);
212			if (Database::affected_rows($resultFirst) && Database::affected_rows($resultSecond)) {
213			$result = true;
214			}
215			}
216
217			return $result;
218			}
219
220			/**
221			* Updates the user course category in the chamilo_user database.
222			*
223			* @param string Category title
224			* @param int Category id
225			*
226			* @return bool True if it success
227			*/
228			public function store_edit_course_category($title, $category_id)
229			{
230			$title = Database::escape_string($title);
231			$category_id = (int) $category_id;
232			$result = false;
233			$table = Database::get_main_table(TABLE_USER_COURSE_CATEGORY);
234			$sql = "UPDATE $table
235			SET title='".api_htmlentities($title, ENT_QUOTES, api_get_system_encoding())."'
236			WHERE id='".$category_id."'";
237			$resultQuery = Database::query($sql);
238			if (Database::affected_rows($resultQuery)) {
239			$result = true;
240			}
241
242			return $result;
243			}
244
245			/**
246			* deletes a course category and moves all the courses that were in this category to main category.
247			*
248			* @param int Category id
249			*
250			* @return bool True if it success
251			*/
252			public function delete_course_category($category_id)
253			{
254			$current_user_id = api_get_user_id();
255			$tucc = Database::get_main_table(TABLE_USER_COURSE_CATEGORY);
256			$TABLECOURSUSER = Database::get_main_table(TABLE_MAIN_COURSE_USER);
257			$category_id = (int) $category_id;
258			$result = false;
259			$sql = "DELETE FROM $tucc
260			WHERE
261			id='".$category_id."' AND
262			user_id='".$current_user_id."'";
263			$resultQuery = Database::query($sql);
264			if (Database::affected_rows($resultQuery)) {
265			$result = true;
266			}
267			$sql = "UPDATE $TABLECOURSUSER
268			SET user_course_cat='0'
269			WHERE
270			user_course_cat='".$category_id."' AND
271			user_id='".$current_user_id."' AND
272			relation_type<>".COURSE_RELATION_TYPE_RRHH." ";
273			Database::query($sql);
274
275			return $result;
276			}
277
278			/**
279			* @param int $categoryId
280			*
281			* @return array\|mixed
282			*/
283			public function getUserCourseCategory($categoryId)
284			{
285			$userId = api_get_user_id();
286			$tucc = Database::get_main_table(TABLE_USER_COURSE_CATEGORY);
287			$categoryId = (int) $categoryId;
288
289			$sql = "SELECT * FROM $tucc
290			WHERE
291			id= $categoryId AND
292			user_id= $userId";
293			$resultQuery = Database::query($sql);
294
295			return Database::fetch_array($resultQuery, 'ASSOC');
296			}
297
298			/**
299			* unsubscribe the user from a given course.
300			*
301			* @param string $course_code
302			*
303			* @return bool True if it success
304			*/
305			public function remove_user_from_course($course_code)
306			{
307			$tbl_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
308
309			// protect variables
310			$current_user_id = api_get_user_id();
311			$course_code = Database::escape_string($course_code);
312			$result = true;
313
314			$courseInfo = api_get_course_info($course_code);
315			$courseId = $courseInfo['real_id'];
316
317			// we check (once again) if the user is not course administrator
318			// because the course administrator cannot unsubscribe himself
319			// (s)he can only delete the course
320			$sql = "SELECT * FROM $tbl_course_user
321			WHERE
322			user_id='".$current_user_id."' AND
323			c_id ='".$courseId."' AND
324			status='1' ";
325			$result_check = Database::query($sql);
326			$number_of_rows = Database::num_rows($result_check);
327			if ($number_of_rows > 0) {
328			$result = false;
329			}
330
331			CourseManager::unsubscribe_user($current_user_id, $course_code);
332
333			return $result;
334			}
335
336			/**
337			* stores the user course category in the chamilo_user database.
338			*
339			* @param string Category title
340			*
341			* @return bool True if it success
342			*/
343			public function store_course_category($category_title)
344			{
345			$table = Database::get_main_table(TABLE_USER_COURSE_CATEGORY);
346
347			// protect data
348			$current_user_id = api_get_user_id();
349			$category_title = Database::escape_string($category_title);
350
351			// step 1: we determine the max value of the user defined course categories
352			$sql = "SELECT sort FROM $table
353			WHERE user_id='".$current_user_id."'
354			ORDER BY sort DESC";
355			$rs_sort = Database::query($sql);
356			$maxsort = Database::fetch_array($rs_sort);
357			$nextsort = $maxsort['sort'] + 1;
358
359			// step 2: we check if there is already a category with this name,
360			// if not we store it, else we give an error.
361			$sql = "SELECT * FROM $table
362			WHERE
363			user_id='".$current_user_id."' AND
364			title='".$category_title."'
365			ORDER BY sort DESC";
366			$rs = Database::query($sql);
367
368			$result = false;
369			if (Database::num_rows($rs) == 0) {
370			$sql = "INSERT INTO $table (user_id, title,sort)
371			VALUES ('".$current_user_id."', '".api_htmlentities(
372			$category_title,
373			ENT_QUOTES,
374			api_get_system_encoding()
375			)."', '".$nextsort."')";
376			$resultQuery = Database::query($sql);
377			if (Database::affected_rows($resultQuery)) {
378			$result = true;
379			}
380			}
381
382			return $result;
383			}
384			}
385

chamilo / chamilo-lms

Push — webservicelpcreate ( d8cb35 )

Auth::updateCourseCategory() A

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