Plugin notebookteacher

main/inc/lib/course_home.lib.php

@@ -510,7 +510,9 @@ class CourseHome
 
         switch ($course_tool_category) {
             case TOOL_STUDENT_VIEW:
-                $conditions = ' WHERE visibility = 1 AND (category = "authoring" OR category = "interaction" OR category = "plugin") ';
+                $conditions = ' WHERE visibility = 1 AND 
+                                (category = "authoring" OR category = "interaction" OR category = "plugin") AND 
+                                name <> "notebookteacher" ';
                 if ((api_is_coach() || api_is_course_tutor()) && $_SESSION['studentview'] != 'studentview') {
                     $conditions = ' WHERE (
                         visibility = 1 AND (

main/inc/lib/plugin.lib.php

@@ -108,7 +108,7 @@ class AppPlugin
         $pluginList = [];
         if (!empty($pluginListName)) {
             foreach ($pluginListName as $pluginName) {
-                $pluginInfo = $this->getPluginInfo($pluginName);
+                $pluginInfo = $this->getPluginInfo($pluginName, true);
                 if (isset($pluginInfo['plugin_class'])) {
                     $pluginList[] = $pluginInfo['plugin_class']::create();
                 }

main/mySpace/myStudents.php

@@ -418,6 +418,18 @@ if (!empty($student_id) && !empty($course_code)) {
         Display::return_icon('statistics.png', get_lang('AccessDetails'), '', ICON_SIZE_MEDIUM).
         '</a>';
 }
+
+$notebookTeacherPlugin = NotebookTeacherPlugin::create();
+$notebookTeacherEnable = $notebookTeacherPlugin->get('enable_plugin_notebookteacher') === 'true';
+
+if ($notebookTeacherEnable && !empty($student_id) && !empty($course_code)) {
+    // link notebookteacher
+    $optionsLink = 'student_id='.$student_id.'&origin='.$origin.'&cidReq='.$course_code.'&id_session='.$sessionId;
+    echo '<a href="'.api_get_path(WEB_PLUGIN_PATH).'notebookteacher/src/index.php?'.$optionsLink.'">'.
+        Display::return_icon('notebookteacher.png', get_lang('Notebook'), '', ICON_SIZE_MEDIUM).
+    '</a>';
+}
+    
 if (api_can_login_as($student_id)) {
     echo '<a href="'.api_get_path(WEB_CODE_PATH).'admin/user_list.php?action=login_as&user_id='.$student_id.'&sec_token='.$token.'">'.
         Display::return_icon('login_as.png', get_lang('LoginAs'), null, ICON_SIZE_MEDIUM).'</a>&nbsp;&nbsp;';

plugin/notebookteacher/config.php

@@ -0,0 +1,12 @@
+<?php
+/* For licensing terms, see /license.txt */
+/**
+ * Config the plugin.
+ *
+ * @package chamilo.plugin.notebookteacher
+ *
+ * @author Jose Angel Ruiz <desarrollo@nosolored.com>
+ */
+require_once __DIR__ . '/../../main/inc/global.inc.php';
+require_once api_get_path(LIBRARY_PATH) . 'plugin.class.php';
+require_once api_get_path(SYS_PLUGIN_PATH) . 'notebookteacher/src/notebookteacher_plugin.class.php';

plugin/notebookteacher/database.php

@@ -0,0 +1,41 @@
+<?php
+/* For license terms, see /license.txt */
+/**
+ * Plugin database installation script. Can only be executed if included
+ * inside another script loading global.inc.php.
+ *
+ * @package chamilo.plugin.notebookteacher
+ */
+/**
+ * Check if script can be called
+ */
+if (!function_exists('api_get_path')) {
+    die('This script must be loaded through the Chamilo plugin installer sequence');
+}
+
+$entityManager = Database::getManager();
+$pluginSchema = new \Doctrine\DBAL\Schema\Schema();
+$connection = $entityManager->getConnection();
+$platform = $connection->getDatabasePlatform();
+
+//Create tables
+$notebookTable = $pluginSchema->createTable(NotebookTeacherPlugin::TABLE_NOTEBOOKTEACHER);
+$notebookTable->addColumn('id', \Doctrine\DBAL\Types\Type::INTEGER, ['autoincrement' => true, 'unsigned' => true]);
+$notebookTable->addColumn('c_id', \Doctrine\DBAL\Types\Type::INTEGER, ['unsigned' => true]);
+$notebookTable->addColumn('session_id', \Doctrine\DBAL\Types\Type::INTEGER, ['unsigned' => true]);
+$notebookTable->addColumn('user_id', \Doctrine\DBAL\Types\Type::INTEGER, ['unsigned' => true]);
+$notebookTable->addColumn('student_id', \Doctrine\DBAL\Types\Type::INTEGER, ['unsigned' => true]);
+$notebookTable->addColumn('course', \Doctrine\DBAL\Types\Type::STRING);
+$notebookTable->addColumn('title', \Doctrine\DBAL\Types\Type::STRING);
+$notebookTable->addColumn('description', \Doctrine\DBAL\Types\Type::TEXT);
+$notebookTable->addColumn('creation_date', \Doctrine\DBAL\Types\Type::DATETIME);
+$notebookTable->addColumn('update_date', \Doctrine\DBAL\Types\Type::DATETIME);
+$notebookTable->addColumn('status', \Doctrine\DBAL\Types\Type::INTEGER, ['unsigned' => true]);
+$notebookTable->addIndex(['c_id']);
+$notebookTable->setPrimaryKey(['id']);
+
+$queries = $pluginSchema->toSql($platform);
+
+foreach ($queries as $query) {
+    Database::query($query);
+}

plugin/notebookteacher/index.php

@@ -0,0 +1,3 @@
+<?php
+/* For license terms, see /license.txt */
+require_once 'config.php';

plugin/notebookteacher/install.php

@@ -0,0 +1,16 @@
+<?php
+/* For license terms, see /license.txt */
+/**
+ * This script is included by main/admin/settings.lib.php and generally
+ * includes things to execute in the main database (settings_current table).
+ *
+ * @package chamilo.plugin.notebookteacher
+ */
+/**
+ * Initialization
+ */
+require_once __DIR__ . '/config.php';
+if (!api_is_platform_admin()) {
+    die('You must have admin permissions to install plugins');
+}
+NotebookTeacherPlugin::create()->install();

plugin/notebookteacher/lang/english.php

@@ -0,0 +1,13 @@
+<?php
+$strings['plugin_title'] = "Teacher notes";
+$strings['plugin_comment'] = "This plugin allows the teachers of a course to have a shared notebook. Students do not have access.";
+$strings['NotebookTeacher'] = "Teacher notes";
+$strings['enable_plugin_notebookteacher'] = "Enable plugin";
+$strings['ToolDisabled'] = "The tool is disabled from the administration";
+$strings['ToolForTeacher'] = "Exclusive tool for teachers";
+$strings['AllStudent'] = "All students";
+$strings['StudentFilter'] = "Student filter";
+$strings['NoNotebookFilter'] = "No notes created with the current filter";
+$strings['NoNotebook'] = "No notes created in the system";
+$strings['NoNotebookUser'] = "No notes for this student";
+$strings['NotebookNoStudentAssigned'] = "Notes without assigned students";

plugin/notebookteacher/lang/spanish.php

@@ -0,0 +1,13 @@
+<?php
+$strings['plugin_title'] = "Notas profesores";
+$strings['plugin_comment'] = "Este plugin permite a los profesores de un curso tener un bloc de notas compartido. Alumnos no tienen acceso.";
+$strings['NotebookTeacher'] = "Notas profesores";
+$strings['enable_plugin_notebookteacher'] = "Activar plugin";
+$strings['ToolDisabled'] = "La herramienta está deshabilitada desde la administración";
+$strings['ToolForTeacher'] = "Herramienta exclusiva para profesores";
+$strings['AllStudent'] = "Todos los estudiantes";
+$strings['StudentFilter'] = "Filtro estudiantes";
+$strings['NoNotebookFilter'] = "No hay notas creadas con el filtro actual";
+$strings['NoNotebook'] = "No hay notas creadas en el sistema";
+$strings['NoNotebookUser'] = "No hay notas para este alumno";
+$strings['NotebookNoStudentAssigned'] = "Notas sin estudiantes asignados";

plugin/notebookteacher/plugin.php

@@ -0,0 +1,14 @@
+<?php
+/* For license terms, see /license.txt */
+/**
+ * This script is a configuration file for the date plugin.
+ * You can use it as a master for other platform plugins (course plugins are slightly different).
+ * These settings will be used in the administration interface for plugins (Chamilo configuration settings->Plugins).
+ *
+ * @package chamilo.plugin.notebookteacher
+ */
+/**
+ * Plugin details (must be present)
+ */
+require_once __DIR__ . '/config.php';
+$plugin_info = NotebookTeacherPlugin::create()->get_info();

plugin/notebookteacher/readme.txt

@@ -0,0 +1,19 @@
+Este plugin da la posibilidad a los profesores de un curso escribir en un bloc de notas compartido.<br>
+Los estudiantes no tienen acceso a las notas compartidas de los profesores.<br/><br/>
+<b>Instrucciones de puesta en funcionamiento:</b><br>
+- Subir la carpeta <b>notebookteacher</b> a la carpeta plugin de chamilo.<br>
+
+- Habilitar el plugin en la administraci&oacute;n de Chamilo.<br>
+- El icono de la herramienta aparecer&aacute; en pantalla de los cursos con el resto de herramientas<br>
+- Si no se visualiza el icono en el cursos correctamente y sale el icono de plugin gen&eacute;rico:<br>
+<ul>
+    <li>Copiar los iconos de la carpeta resources/img/64 dentro de /main/img/icons/64</li>
+    <li>Copiar el icono de la carpeta resources/img/22 dentro de /main/img</li>
+</ul>
+<br>
+<b>Solo si ya tiene instalado el plugin previamente:</b><br>
+Para actualizar la base de datos del plugin con los &uacute;ltimos cambios de la estructura deber&aacute; poner en su
+navegador la siguiente direcci&oacute;n cambiando el nombre del dominio con el que proceda en su caso.<br>
+http://<i>sudominio.com/</i><b>plugin/notebookteacher/update.php</b>
+</p>
+<br>

plugin/notebookteacher/src/index.notebookteacher.php

@@ -0,0 +1,7 @@
+<?php
+/* For license terms, see /license.txt */
+/**
+ * Index of the Test to pdf plugin courses list.
+ *
+ * @package chamilo.plugin.notebookteacher
+ */

plugin/notebookteacher/src/index.php

@@ -0,0 +1,390 @@
+<?php
+/* For licensing terms, see /license.txt */
+
+$course_plugin = 'notebookteacher';
+require_once __DIR__.'/../config.php';
+require_once __DIR__.'/notebookteacher.lib.php';
+
+$_setting['student_view_enabled'] = 'false';
+
+$plugin = NotebookTeacherPlugin::create();
+$current_course_tool = $plugin->get_lang('NotebookTeacher');
+$enable = $plugin->get('enable_plugin_notebookteacher') == 'true';
+
+if ($enable) {
+    if (api_is_teacher() || api_is_drh()) {
+        // The section (tabs)
+        $this_section = SECTION_COURSES;
+
+        // Notice for unauthorized people.
+        api_protect_course_script(true);
+        $location = 'index.php?'.api_get_cidreq();
+
+        // Additional javascript
+        $htmlHeadXtra[] = NotebookTeacher::javascript_notebook();
+        $htmlHeadXtra[] = '<script>
+        function setFocus(){
+            $("#note_title").focus();
+        }
+        $(document).ready(function () {
+            setFocus();
+        });
+
+        function filter_student() {
+            var student_id = $("#student_filter").val();
+            location.href ="'.$location.'&student_id="+student_id;
+        }
+        </script>';
+
+        // Setting the tool constants
+        $tool = $plugin->get_lang('NotebookTeacher');
+
+        // Tracking
+        Event::event_access_tool('notebookteacher');
+
+        $action = isset($_GET['action']) ? $_GET['action'] : '';
+
+        // Tool name
+        if ($action === 'addnote') {
+            $tool = 'NoteAddNew';
+            $interbreadcrumb[] = ['url' => 'index.php?'.api_get_cidreq(), 'name' => $plugin->get_lang('NotebookTeacher')];
+        }
+        if ($action === 'editnote') {
+            $tool = 'ModifyNote';
+            $interbreadcrumb[] = ['url' => 'index.php?'.api_get_cidreq(), 'name' => $plugin->get_lang('NotebookTeacher')];
+        }
+
+        // Displaying the header
+        Display::display_header(get_lang(ucfirst($tool)));
+
+        // Tool introduction
+        Display::display_introduction_section($plugin->get_lang('NotebookTeacher'));
+
+        // Action handling: Adding a note
+        if ($action === 'addnote') {
+            if ((api_get_session_id() != 0 && !api_is_allowed_to_session_edit(false, true) || api_is_drh())) {
+                api_not_allowed();
+            }
+
+            $_SESSION['notebook_view'] = 'creation_date';
+
+            $form = new FormValidator(
+                'note',
+                'post',
+                api_get_self().'?action='.Security::remove_XSS($_GET['action']).'&'.api_get_cidreq()
+            );
+            // Setting the form elements
+            $form->addElement('header', '', get_lang('NoteAddNew'));
+            $form->addElement('text', 'note_title', get_lang('NoteTitle'), ['id' => 'note_title']);
+
+            $student_id = isset($_GET['student_id']) ? $_GET['student_id'] : null;
+            $sessionId = api_get_session_id();
+            $courseCode = api_get_course_id();
+            $active = isset($_GET['active']) ? $_GET['active'] : null;
+            $status = STUDENT;
+            $course_info = api_get_course_info();
+            $courseId = $course_info['real_id'];
+            $current_access_url_id = api_get_current_access_url_id();
+            $sort_by_first_name = api_sort_by_first_name();
+
+            if (!empty($sessionId)) {
+                $table_session_course_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
+                $table_users = Database::get_main_table(TABLE_MAIN_USER);
+                $sql = "SELECT DISTINCT
+                            user.user_id, ".($is_western_name_order
+                                    ? "user.firstname, user.lastname"
+                                    : "user.lastname, user.firstname")."
+                        FROM $table_session_course_user as session_course_user,
+                $table_users as user ";
+                if (api_is_multiple_url_enabled()) {
+                    $sql .= ' , '.Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER).' au ';
+                }
+                $sql .= " WHERE c_id = '$courseId' AND session_course_user.user_id = user.user_id ";
+                $sql .= ' AND session_id = '.$sessionId;
+
+                if (api_is_multiple_url_enabled()) {
+                    $sql .= " AND user.user_id = au.user_id AND access_url_id =  $current_access_url_id  ";
+                }
+
+                // only users no coaches/teachers
+                if ($type == COURSEMANAGER) {
+                    $sql .= " AND session_course_user.status = 2 ";
+                } else {
+                    $sql .= " AND session_course_user.status = 0 ";
+                }
+                $sql .= $sort_by_first_name ? 
+                        ' ORDER BY user.firstname, user.lastname' : 
+                        ' ORDER BY user.lastname, user.firstname';
+
+                $rs = Database::query($sql);
+
+                $a_course_users = [];
+                while ($row = Database::fetch_assoc($rs)) {
+                    $a_course_users[$row['user_id']] = $row;
+                }
+            } else {
+                $a_course_users = CourseManager::get_user_list_from_course_code(
+                    $courseCode,
+                    0,
+                    null,
+                    null,
+                    $status,
+                    null,
+                    false,
+                    false,
+                    null,
+                    null,
+                    null,
+                    $active
+                );
+            }
+
+            $studentList = [];
+            $studentList[0] = '';
+            foreach ($a_course_users as $key => $user_item) {
+                $studentList[$key] = $user_item['firstname'].' '.$user_item['lastname'];
+            }
+
+            $form->addElement(
+                    'select',
+                    'student_id',
+                    get_lang('Student'),
+                    $studentList,
+                    [
+                        'id' => 'student_id',
+                    ]
+            );
+
+            $form->addElement(
+                'html_editor',
+                'note_comment',
+                get_lang('NoteComment'),
+                null,
+                api_is_allowed_to_edit()
+                ? ['ToolbarSet' => 'Notebook', 'Width' => '100%', 'Height' => '300']
+                : ['ToolbarSet' => 'NotebookStudent', 'Width' => '100%', 'Height' => '300', 'UserStatus' => 'student']
+            );
+            $form->addButtonCreate(get_lang('AddNote'), 'SubmitNote');
+
+            // Setting the rules
+            $form->addRule('note_title', get_lang('ThisFieldIsRequired'), 'required');
+
+            // The validation or display
+            if ($form->validate()) {
+                $check = Security::check_token('post');
+                if ($check) {
+                    $values = $form->exportValues();
+                    $res = NotebookTeacher::save_note($values);
+                    if ($res) {
+                        echo Display::return_message(get_lang('NoteAdded'), 'confirmation');
+                    }
+                }
+                Security::clear_token();
+                NotebookTeacher::display_notes();
+            } else {
+                echo '<div class="actions">';
+                echo '<a href="index.php">'.
+                        Display::return_icon('back.png', get_lang('BackToNotesList'), '', ICON_SIZE_MEDIUM).
+                    '</a>';
+                echo '</div>';
+                $token = Security::get_token();
+                $form->addElement('hidden', 'sec_token');
+                $form->setConstants(['sec_token' => $token]);
+                $form->display();
+            }
+        } elseif ($action === 'editnote' && is_numeric($_GET['notebook_id'])) {
+            // Action handling: Editing a note
+            if (!empty($_GET['isStudentView']) || api_is_drh()) {
+                NotebookTeacher::display_notes();
+                exit;
+            }
+
+            // Initialize the object
+            $form = new FormValidator(
+                'note',
+                'post',
+                api_get_self().'?action='.Security::remove_XSS($_GET['action']).
+                    '&notebook_id='.intval($_GET['notebook_id']).'&'.api_get_cidreq()
+            );
+            // Setting the form elements
+            $form->addElement('header', '', get_lang('ModifyNote'));
+            $form->addElement('hidden', 'notebook_id');
+            $form->addElement('text', 'note_title', get_lang('NoteTitle'), ['size' => '100']);
+
+            $sessionId = api_get_session_id();
+            $courseCode = api_get_course_id();
+            $active = isset($_GET['active']) ? $_GET['active'] : null;
+            $status = STUDENT;
+            $student_id = isset($_GET['student_id']) ? $_GET['student_id'] : null;
+            $course_info = api_get_course_info();
+            $courseId = $course_info['real_id'];
+            $current_access_url_id = api_get_current_access_url_id();
+            $sort_by_first_name = api_sort_by_first_name();
+
+            if (!empty($sessionId)) {
+                $table_session_course_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
+                $table_users = Database::get_main_table(TABLE_MAIN_USER);
+                $sql = "SELECT DISTINCT
+                        user.user_id, ".($is_western_name_order
+                                ? "user.firstname, user.lastname"
+                                : "user.lastname, user.firstname")."
+                        FROM $table_session_course_user as session_course_user,
+                $table_users as user ";
+                if (api_is_multiple_url_enabled()) {
+                    $sql .= ' , '.Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER).' au ';
+                }
+                $sql .= " WHERE c_id = '$courseId' AND session_course_user.user_id = user.user_id ";
+                $sql .= ' AND session_id = '.$sessionId;
+
+                if (api_is_multiple_url_enabled()) {
+                    $sql .= " AND user.user_id = au.user_id AND access_url_id =  $current_access_url_id  ";
+                }
+
+                // only users no coaches/teachers
+                if ($type == COURSEMANAGER) {
+                    $sql .= " AND session_course_user.status = 2 ";
+                } else {
+                    $sql .= " AND session_course_user.status = 0 ";
+                }
+                $sql .= $sort_by_first_name 
+                        ? ' ORDER BY user.firstname, user.lastname'
+                        : ' ORDER BY user.lastname, user.firstname';
+
+                $rs = Database::query($sql);
+
+                $a_course_users = [];
+                while ($row = Database::fetch_assoc($rs)) {
+                    $a_course_users[$row['user_id']] = $row;
+                }
+            } else {
+                $a_course_users = CourseManager::get_user_list_from_course_code(
+                        $courseCode,
+                        0,
+                        null,
+                        null,
+                        $status,
+                        null,
+                        false,
+                        false,
+                        null,
+                        null,
+                        null,
+                        $active
+                        );
+            }
+
+            $studentList = [];
+            $studentList[0] = '';
+            foreach ($a_course_users as $key => $user_item) {
+                $studentList[$key] = $user_item['firstname'].' '.$user_item['lastname'];
+            }
+
+            $form->addElement(
+                    'select',
+                    'student_id',
+                    get_lang('Student'),
+                    $studentList,
+                    [
+                       'id' => 'student_id',
+                    ]
+            );
+
+            $form->addElement(
+                'html_editor',
+                'note_comment',
+                get_lang('NoteComment'),
+                null,
+                api_is_allowed_to_edit()
+                ? ['ToolbarSet' => 'Notebook', 'Width' => '100%', 'Height' => '300']
+                : ['ToolbarSet' => 'NotebookStudent', 'Width' => '100%', 'Height' => '300', 'UserStatus' => 'student']
+            );
+            $form->addButtonUpdate(get_lang('ModifyNote'), 'SubmitNote');
+
+            // Setting the defaults
+            $defaults = NotebookTeacher::get_note_information(Security::remove_XSS($_GET['notebook_id']));
+            $form->setDefaults($defaults);
+
+            // Setting the rules
+            $form->addRule('note_title', get_lang('ThisFieldIsRequired'), 'required');
+
+            // The validation or display
+            if ($form->validate()) {
+                $check = Security::check_token('post');
+                if ($check) {
+                    $values = $form->exportValues();
+                    $res = NotebookTeacher::update_note($values);
+                    if ($res) {
+                        echo Display::return_message(get_lang('NoteUpdated'), 'confirmation');
+                    }
+                }
+                Security::clear_token();
+                NotebookTeacher::display_notes();
+            } else {
+                echo '<div class="actions">';
+                echo '<a href="index.php">'.
+                    Display::return_icon('back.png', get_lang('BackToNotesList'), '', ICON_SIZE_MEDIUM).'</a>';
+                echo '</div>';
+                $token = Security::get_token();
+                $form->addElement('hidden', 'sec_token');
+                $form->setConstants(['sec_token' => $token]);
+                $form->display();
+            }
+        } elseif ($action === 'deletenote' && is_numeric($_GET['notebook_id'])) {
+            // Action handling: deleting a note
+            $res = NotebookTeacher::delete_note($_GET['notebook_id']);
+            if ($res) {
+                echo Display::return_message(get_lang('NoteDeleted'), 'confirmation');
+            }
+
+            NotebookTeacher::display_notes();
+        } elseif (
+            $action === 'changeview' && in_array($_GET['view'], ['creation_date', 'update_date', 'title'])) {
+
+            // Action handling: changing the view (sorting order)
+            switch ($_GET['view']) {
+                case 'creation_date':
+                    if (!$_GET['direction'] || $_GET['direction'] == 'ASC') {
+                        echo Display::return_message(get_lang('NotesSortedByCreationDateAsc'), 'confirmation');
+                    } else {
+                        echo Display::return_message(get_lang('NotesSortedByCreationDateDESC'), 'confirmation');
+                    }
+                    break;
+                case 'update_date':
+                    if (!$_GET['direction'] || $_GET['direction'] == 'ASC') {
+                        echo Display::return_message(get_lang('NotesSortedByUpdateDateAsc'), 'confirmation');
+                    } else {
+                        echo Display::return_message(get_lang('NotesSortedByUpdateDateDESC'), 'confirmation');
+                    }
+                    break;
+                case 'title':
+                    if (!$_GET['direction'] || $_GET['direction'] == 'ASC') {
+                        echo Display::return_message(get_lang('NotesSortedByTitleAsc'), 'confirmation');
+                    } else {
+                        echo Display::return_message(get_lang('NotesSortedByTitleDESC'), 'confirmation');
+                    }
+                    break;
+            }
+            $_SESSION['notebook_view'] = $_GET['view'];
+            NotebookTeacher::display_notes();
+        } else {
+            NotebookTeacher::display_notes();
+        }
+        
+        Display::display_footer();
+    } else {
+        /** @var \Chamilo\CoreBundle\Entity\Session $session */
+        $session = Database::getManager()
+            ->find('ChamiloCoreBundle:Session', api_get_session_id());
+        $_course = api_get_course_info();
+        $web_course_path = api_get_path(WEB_COURSE_PATH);
+        $url = $web_course_path.$_course['path'].'/index.php'.($session ? '?id_session='.$session->getId() : '');
+
+        Display::addFlash(
+            Display::return_message($plugin->get_lang('ToolForTeacher'))
+        );
+
+        header('Location: ' . $url);
+    }
+} else {
+    echo $plugin->get_lang('ToolDisabled');
+}

plugin/notebookteacher/src/notebookteacher.lib.php

@@ -0,0 +1,487 @@
+<?php
+/* For licensing terms, see /license.txt */
+require_once __DIR__.'/../config.php';
+/**
+ * This class provides methods for the notebook management.
+ * Include/require it in your code to use its features.
+ *
+ * @author Carlos Vargas <litox84@gmail.com>, move code of main/notebook up here
+ * @author Jose Angel Ruiz <desarrollo@nosolored.com>, adaptation for the plugin
+ *
+ * @package chamilo.library
+ */
+class NotebookTeacher
+{
+    /**
+     * Constructor
+     */
+    public function __construct()
+    {
+    }
+
+    /**
+     * a little bit of javascript to display a prettier warning when deleting a note
+     *
+     * @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
+     *
+     * @version januari 2009, dokeos 1.8.6
+     *     
+     * @return string
+     */
+    public static function javascript_notebook()
+    {
+        return "<script>
+				function confirmation (name)
+				{
+					if (confirm(\" " . get_lang("NoteConfirmDelete")." \"+ name + \" ?\"))
+						{return true;}
+					else
+						{return false;}
+				}
+				</script>";
+    }
+
+    /**
+     * This functions stores the note in the database
+     *
+     * @param array $values
+     * @param int $userId Optional. The user ID
+     * @param int $courseId Optional. The course ID
+     * @param int $sessionId Optional. The session ID
+     *
+     * @return bool
+     */
+    public static function save_note($values, $userId = 0, $courseId = 0, $sessionId = 0)
+    {
+        if (!is_array($values) || empty($values['note_title'])) {
+            return false;
+        }
+
+        // Database table definition
+        $table = Database::get_main_table(NotebookTeacherPlugin::TABLE_NOTEBOOKTEACHER);
+        $userId = $userId ?: api_get_user_id();
+        $courseId = $courseId ?: api_get_course_int_id();
+        $courseInfo = api_get_course_info_by_id($courseId);
+        $courseCode = $courseInfo['code'];
+        $sessionId = $sessionId ?: api_get_session_id();
+        $now = api_get_utc_datetime();
+        $params = [
+            'c_id' => $courseId,
+            'session_id' => $sessionId,
+            'user_id' => $userId,
+            'student_id' => intval($values['student_id']),
+            'course' => $courseCode,
+            'title' => $values['note_title'],
+            'description' => $values['note_comment'],
+            'creation_date' => $now,
+            'update_date' => $now,
+            'status' => 0,
+        ];
+        $id = Database::insert($table, $params);
+
+        if ($id > 0) {
+            return $id;
+        }
+    }
+
+    /**
+     * @param int $notebook_id
+     *
+     * @return array|mixed
+     */
+    public static function get_note_information($notebook_id)
+    {
+        if (empty($notebook_id)) {
+            return [];
+        }
+
+        // Database table definition
+        $tableNotebook = Database::get_main_table(NotebookTeacherPlugin::TABLE_NOTEBOOKTEACHER);
+        $courseId = api_get_course_int_id();
+
+        $sql = "SELECT
+                id AS notebook_id,
+                title AS note_title,
+                description AS note_comment,
+                session_id AS session_id,
+                student_id AS student_id
+               FROM $tableNotebook
+               WHERE c_id = $courseId AND id = '".intval($notebook_id)."' ";
+        $result = Database::query($sql);
+        if (Database::num_rows($result) != 1) {
+            return [];
+        }
+        return Database::fetch_array($result);
+    }
+
+    /**
+     * This functions updates the note in the database.
+     *
+     * @param array $values
+     *
+     * @return bool
+     */
+    public static function update_note($values)
+    {
+        if (!is_array($values) or empty($values['note_title'])) {
+            return false;
+        }
+        // Database table definition
+        $table = Database::get_main_table(NotebookTeacherPlugin::TABLE_NOTEBOOKTEACHER);
+
+        $courseId = api_get_course_int_id();
+        $sessionId = api_get_session_id();
+
+        $params = [
+            'user_id' => api_get_user_id(),
+            'student_id' => intval($values['student_id']),
+            'course' => api_get_course_id(),
+            'session_id' => $sessionId,
+            'title' => $values['note_title'],
+            'description' => $values['note_comment'],
+            'update_date' => api_get_utc_datetime()
+        ];
+
+        Database::update(
+            $table,
+            $params,
+            [
+                'c_id = ? AND id = ?' => [
+                    $courseId,
+                    $values['notebook_id']
+                ],
+            ]
+        );
+        return true;
+    }
+
+    /**
+     * @param int $notebook_id
+     *
+     * @return bool
+     */
+    public static function delete_note($notebook_id)
+    {
+        if (empty($notebook_id) || $notebook_id != strval(intval($notebook_id))) {
+            return false;
+        }
+
+        // Database table definition
+        $tableNotebook = Database::get_main_table(NotebookTeacherPlugin::TABLE_NOTEBOOKTEACHER);
+
+        $courseId = api_get_course_int_id();
+
+        $sql = "DELETE FROM $tableNotebook
+                WHERE
+                    c_id = $courseId AND
+                    id = '".intval($notebook_id)."' AND
+                    user_id = '" . api_get_user_id()."'";
+        $result = Database::query($sql);
+
+        if (Database::affected_rows($result) != 1) {
+            return false;
+        }
+        return true;
+    }
+
+    /**
+     * Display notes.
+     */
+    public static function display_notes()
+    {
+        $plugin = NotebookTeacherPlugin::create();
+        $_user = api_get_user_info();
+        if (!isset($_GET['direction'])) {
+            $sortDirection = 'ASC';
+            $linkSortDirection = 'DESC';
+        } elseif ($_GET['direction'] == 'ASC') {
+            $sortDirection = 'ASC';
+            $linkSortDirection = 'DESC';
+        } else {
+            $sortDirection = 'DESC';
+            $linkSortDirection = 'ASC';
+        }
+
+        $studentId = isset($_GET['student_id']) ? $_GET['student_id'] : null;
+        $selectStudent = '';
+        $sessionId = api_get_session_id();
+        $courseCode = api_get_course_id();
+        $active = isset($_GET['active']) ? $_GET['active'] : null;
+        $status = STUDENT;
+        $courseInfo = api_get_course_info();
+        $courseId = $courseInfo['real_id'];
+        $currentAccessUrlId = api_get_current_access_url_id();
+        $sortByfirstName = api_sort_by_first_name();
+
+        if (!empty($sessionId)) {
+            $tableSessionCourseUser = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
+            $tableUsers = Database::get_main_table(TABLE_MAIN_USER);
+            $sql = "SELECT DISTINCT
+                        user.user_id, ".($is_western_name_order ? "user.firstname, user.lastname" : "user.lastname, user.firstname")."
+                    FROM $tableSessionCourseUser as session_course_user,
+            $tableUsers as user ";
+            if (api_is_multiple_url_enabled()) {
+                $sql .= ' , '.Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER).' au ';
+            }
+            $sql .= " WHERE c_id = '$courseId' AND session_course_user.user_id = user.user_id ";
+            $sql .= ' AND session_id = '.$sessionId;
+
+            if (api_is_multiple_url_enabled()) {
+                $sql .= " AND user.user_id = au.user_id AND access_url_id =  $currentAccessUrlId  ";
+            }
+
+            // only users no coaches/teachers
+            if ($type == COURSEMANAGER) {
+                $sql .= " AND session_course_user.status = 2 ";
+            } else {
+                $sql .= " AND session_course_user.status = 0 ";
+            }
+            $sql .= $sortByfirstName ? ' ORDER BY user.firstname, user.lastname' : ' ORDER BY user.lastname, user.firstname';
+
+            $rs = Database::query($sql);
+
+            $courseUsersList = [];
+            while ($row = Database::fetch_assoc($rs)) {
+                $courseUsersList[$row['user_id']] = $row;
+            }
+        } else {
+            $courseUsersList = CourseManager::get_user_list_from_course_code(
+                $courseCode,
+                0,
+                null,
+                null,
+                $status,
+                null,
+                false,
+                false,
+                null,
+                null,
+                null,
+                $active
+            );
+        }
+
+        $form = new FormValidator('search_student');
+
+        // Status
+        $students = [];
+        $students[] = $plugin->get_lang('AllStudent');
+        foreach ($courseUsersList as $key => $userItem) {
+            $students[$key] = $userItem['firstname'].' '.$userItem['lastname'];
+        }
+
+        $form->addElement(
+            'select',
+            'student_filter',
+            $plugin->get_lang('StudentFilter'),
+            $students,
+            [
+                'id' => 'student_filter',
+                'onchange' => 'javascript: filter_student();',
+            ]
+        );
+        $user_data = ['student_filter' => $studentId];
+        $form->setDefaults($user_data);
+
+        $selectStudent = $form->returnForm();
+
+        // action links
+        echo '<div class="actions">';
+        if (!api_is_drh()) {
+            if (!api_is_anonymous()) {
+                if (api_get_session_id() == 0) {
+                    echo '<a href="index.php?'.api_get_cidreq().'&action=addnote">'.
+                        Display::return_icon(
+                            'new_note.png',
+                            get_lang('NoteAddNew'),
+                            '',
+                            '32'
+                        ).'</a>';
+                } elseif (api_is_allowed_to_session_edit(false, true)) {
+                    echo '<a href="index.php?'.api_get_cidreq().'&action=addnote">'.
+                        Display::return_icon('new_note.png', get_lang('NoteAddNew'), '', '32').'</a>';
+                }
+            } else {
+                echo '<a href="javascript:void(0)">'.
+                    Display::return_icon('new_note.png', get_lang('NoteAddNew'), '', '32').'</a>';
+            }
+        }
+
+        echo '<a href="index.php?'.api_get_cidreq().'&action=changeview&view=creation_date&direction='.$linkSortDirection.'&student_id='.$studentId.'">'.
+            Display::return_icon('notes_order_by_date_new.png', get_lang('OrderByCreationDate'), '', '32').'</a>';
+        echo '<a href="index.php?'.api_get_cidreq().'&action=changeview&view=update_date&direction='.$linkSortDirection.'&student_id='.$studentId.'">'.
+            Display::return_icon('notes_order_by_date_mod.png', get_lang('OrderByModificationDate'), '', '32').'</a>';
+        echo '<a href="index.php?'.api_get_cidreq().'&action=changeview&view=title&direction='.$linkSortDirection.'&student_id='.$studentId.'">'.
+            Display::return_icon('notes_order_by_title.png', get_lang('OrderByTitle'), '', '32').'</a>';
+
+        echo '</div>';
+        echo '<div class="row">'.$selectStudent.'</div>';
+
+        if (!isset($_SESSION['notebook_view']) ||
+            !in_array($_SESSION['notebook_view'], ['creation_date', 'update_date', 'title'])
+        ) {
+            $_SESSION['notebook_view'] = 'creation_date';
+        }
+
+        // Database table definition
+        $tableNotebook = Database::get_main_table(NotebookTeacherPlugin::TABLE_NOTEBOOKTEACHER);
+        if ($_SESSION['notebook_view'] == 'creation_date' || $_SESSION['notebook_view'] == 'update_date') {
+            $orderBy = " ORDER BY ".$_SESSION['notebook_view']." $sortDirection ";
+        } else {
+            $orderBy = " ORDER BY ".$_SESSION['notebook_view']." $sortDirection ";
+        }
+
+        //condition for the session
+        $session_id = api_get_session_id();
+        $conditionSession = api_get_session_condition($session_id);
+
+        $condExtra = ($_SESSION['notebook_view'] == 'update_date') ? " AND update_date <> ''" : " ";
+        $courseId = api_get_course_int_id();
+
+        if ($studentId > 0) {
+            // Only one student
+            $conditionStudent = " AND student_id = $studentId";
+
+            $sql = "SELECT * FROM $tableNotebook
+                    WHERE
+                    c_id = $courseId
+                    $conditionSession
+                    $conditionStudent
+                    $condExtra $orderBy
+                    ";
+            $first = true;
+            $result = Database::query($sql);
+            if (Database::num_rows($result) > 0) {
+                while ($row = Database::fetch_array($result)) {
+                    if ($first) {
+                        if ($row['student_id'] > 0) {
+                            $studentInfo = api_get_user_info($row['student_id']);
+                            $studentText = $studentInfo['complete_name'];
+                        } else {
+                            $studentText = '';
+                        }
+                        echo Display::page_subheader($studentText);
+                        $first = false;
+                    }
+                    // Validation when belongs to a session
+                    $sessionImg = api_get_session_image($row['session_id'], $_user['status']);
+                    $updateValue = '';
+                    if ($row['update_date'] <> $row['creation_date']) {
+                        $updateValue = ', '.get_lang('UpdateDate').': '.Display::dateToStringAgoAndLongDate($row['update_date']);
+                    }
+                    $userInfo = api_get_user_info($row['user_id']);
+                    $author = ', '.get_lang('Teacher').': '.$userInfo['complete_name'];
+
+                    if (intval($row['user_id']) == api_get_user_id()) {
+                        $actions = '<a href="'.api_get_self().'?'.api_get_cidreq().'action=editnote&notebook_id='.$row['id'].'">'.
+                                Display::return_icon('edit.png', get_lang('Edit'), '', ICON_SIZE_SMALL).'</a>';
+                        $actions .= '<a href="'.api_get_self().'?action=deletenote&notebook_id='.$row['id'].'" onclick="return confirmation(\''.$row['title'].'\');">'.
+                                Display::return_icon('delete.png', get_lang('Delete'), '', ICON_SIZE_SMALL).'</a>';
+                    } else {
+                        $actions = '';
+                    }
+
+                    echo Display::panel(
+                            $row['description'],
+                            $row['title'].$sessionImg.' <div class="pull-right">'.$actions.'</div>',
+                            get_lang('CreationDate').': '.Display::dateToStringAgoAndLongDate($row['creation_date']).$updateValue.$author
+                    );
+                }
+            } else {
+                echo Display::return_message($plugin->get_lang('NoNotebookUser'), 'warning');
+            }
+        } else {
+            // All students
+            foreach ($courseUsersList as $key => $userItem) {
+                $studentId = $key;
+                $studentText = $userItem['firstname'].' '.$userItem['lastname'];
+
+                $conditionStudent = " AND student_id = $studentId";
+
+                $sql = "SELECT * FROM $tableNotebook
+                        WHERE
+                        c_id = $courseId
+                        $conditionSession
+                        $conditionStudent
+                        $condExtra $orderBy
+                ";
+
+                $result = Database::query($sql);
+                if (Database::num_rows($result) > 0) {
+                    echo Display::page_subheader($studentText);
+                    while ($row = Database::fetch_array($result)) {
+
+                        // Validation when belongs to a session
+                        $sessionImg = api_get_session_image($row['session_id'], $_user['status']);
+                        $updateValue = '';
+
+                        if ($row['update_date'] <> $row['creation_date']) {
+                            $updateValue = ', '.get_lang('UpdateDate').': '.Display::dateToStringAgoAndLongDate($row['update_date']);
+                        }
+
+                        $userInfo = api_get_user_info($row['user_id']);
+                        $author = ', '.get_lang('Teacher').': '.$userInfo['complete_name'];
+
+                        if (intval($row['user_id']) == api_get_user_id()) {
+                            $actions = '<a href="'.api_get_self().'?action=editnote&notebook_id='.$row['id'].'&'.api_get_cidreq().'">'.
+                                    Display::return_icon('edit.png', get_lang('Edit'), '', ICON_SIZE_SMALL).'</a>';
+                            $actions .= '<a href="'.api_get_self().'?action=deletenote&notebook_id='.$row['id'].'" onclick="return confirmation(\''.$row['title'].'\');">'.
+                                    Display::return_icon('delete.png', get_lang('Delete'), '', ICON_SIZE_SMALL).'</a>';
+                        } else {
+                            $actions = '';
+                        }
+
+                        echo Display::panel(
+                                $row['description'],
+                                $row['title'].$sessionImg.' <div class="pull-right">'.$actions.'</div>',
+                                get_lang('CreationDate').': '.Display::dateToStringAgoAndLongDate($row['creation_date']).$updateValue.$author
+                        );
+                    }
+                }
+            }
+
+            $conditionStudent = " AND student_id = 0";
+
+            $sql = "SELECT * FROM $tableNotebook
+                    WHERE
+                    c_id = $courseId
+                    $conditionSession
+                    $conditionStudent
+                    $condExtra $orderBy
+            ";
+
+            $result = Database::query($sql);
+            if (Database::num_rows($result) > 0) {
+                echo Display::page_subheader($plugin->get_lang('NotebookNoStudentAssigned'));
+                while ($row = Database::fetch_array($result)) {
+
+                    // Validation when belongs to a session
+                    $sessionImg = api_get_session_image($row['session_id'], $_user['status']);
+                    $updateValue = '';
+
+                    if ($row['update_date'] <> $row['creation_date']) {
+                        $updateValue = ', '.get_lang('UpdateDate').': '.Display::dateToStringAgoAndLongDate($row['update_date']);
+                    }
+
+                    $userInfo = api_get_user_info($row['user_id']);
+                    $author = ', '.get_lang('Teacher').': '.$userInfo['complete_name'];
+
+                    if (intval($row['user_id']) == api_get_user_id()) {
+                        $actions = '<a href="'.api_get_self().'?action=editnote&notebook_id='.$row['id'].'&'.api_get_cidreq().'">'.
+                                Display::return_icon('edit.png', get_lang('Edit'), '', ICON_SIZE_SMALL).'</a>';
+                        $actions .= '<a href="'.api_get_self().'?action=deletenote&notebook_id='.$row['id'].'" onclick="return confirmation(\''.$row['title'].'\');">'.
+                                Display::return_icon('delete.png', get_lang('Delete'), '', ICON_SIZE_SMALL).'</a>';
+                    } else {
+                        $actions = '';
+                    }
+
+                    echo Display::panel(
+                            $row['description'],
+                            $row['title'].$sessionImg.' <div class="pull-right">'.$actions.'</div>',
+                            get_lang('CreationDate').': '.Display::dateToStringAgoAndLongDate($row['creation_date']).$updateValue.$author
+                    );
+                }
+            }
+        }
+    }
+}

plugin/notebookteacher/src/notebookteacher_plugin.class.php

@@ -0,0 +1,125 @@
+<?php
+/* For license terms, see /license.txt */
+/**
+ * Description of notebookteacher_plugin.
+ *
+ * @package chamilo.plugin.notebookteacher
+ *
+ * @author Jose Angel Ruiz <desarrollo@nosolored.com>
+ */
+/**
+ * Plugin class for the NotebookTeacher plugin.
+ */
+class NotebookTeacherPlugin extends Plugin
+{
+    const TABLE_NOTEBOOKTEACHER = 'plugin_notebook_teacher';
+    public $isCoursePlugin = true;
+
+    protected function __construct()
+    {
+        parent::__construct(
+            '1.1',
+            'Jose Angel Ruiz - NoSoloRed (original author)',
+            [
+                'enable_plugin_notebookteacher' => 'boolean',
+            ]
+        );
+
+        $this->isAdminPlugin = true;
+    }
+
+    /**
+     *
+     * @return StaticPlugin
+     */
+    public static function create()
+    {
+        static $result = null;
+
+        return $result ? $result : $result = new self();
+    }
+
+    /**
+     * This method creates the tables required to this plugin.
+     */
+    public function install()
+    {
+        //Installing course settings
+        $this->install_course_fields_in_all_courses();
+
+        $tablesToBeCompared = [
+                self::TABLE_NOTEBOOKTEACHER
+        ];
+        $em = Database::getManager();
+        $cn = $em->getConnection();
+        $sm = $cn->getSchemaManager();
+        $tables = $sm->tablesExist($tablesToBeCompared);
+
+        if ($tables) {
+            return false;
+        }
+
+        $srcfile1 = __DIR__.'/../resources/img/64/notebookteacher.png';
+        $srcfile2 = __DIR__.'/../resources/img/64/notebookteacher_na.png';
+        $srcfile3 = __DIR__.'/../resources/img/32/notebookteacher.png';
+        $srcfile4 = __DIR__.'/../resources/img/22/notebookteacher.png';
+        $dstfile1 = __DIR__.'/../../../main/img/icons/64/notebookteacher.png';
+        $dstfile2 = __DIR__.'/../../../main/img/icons/64/notebookteacher_na.png';
+        $dstfile3 = __DIR__.'/../../../main/img/icons/32/notebookteacher.png';
+        $dstfile4 = __DIR__.'/../../../main/img/notebookteacher.png';
+        copy($srcfile1, $dstfile1);
+        copy($srcfile2, $dstfile2);
+        copy($srcfile3, $dstfile3);
+        copy($srcfile4, $dstfile4);
+
+        require_once api_get_path(SYS_PLUGIN_PATH) . 'notebookteacher/database.php';
+    }
+
+    /**
+     * This method drops the plugin tables.
+     */
+    public function uninstall()
+    {
+        //Deleting course settings
+        $this->uninstall_course_fields_in_all_courses($this->course_settings);
+
+        $tablesToBeDeleted = [
+            TABLE_NOTEBOOKTEACHER
+        ];
+        foreach ($tablesToBeDeleted as $tableToBeDeleted) {
+            $table = Database::get_main_table($tableToBeDeleted);
+            $sql = "DROP TABLE IF EXISTS $tableToBeDeleted";
+            Database::query($sql);
+        }
+        $this->manageTab(false);
+    }
+
+    public function update()
+    {
+        $tableNotebookTeacher = self::TABLE_NOTEBOOKTEACHER;
+
+        $sql = 'SHOW COLUMNS FROM '.$tableNotebookTeacher.' WHERE Field = "student_id"';
+        $rs = Database::query($sql);
+        if (Database::num_rows($rs) === 0) {
+            $sql = "ALTER TABLE ".$tableNotebookTeacher." ADD student_id INT( 10 ) UNSIGNED NOT NULL AFTER user_id";
+            Database::query($sql);
+        }
+
+        $srcfile1 = __DIR__.'/../resources/img/64/notebookteacher.png';
+        $srcfile2 = __DIR__.'/../resources/img/64/notebookteacher_na.png';
+        $srcfile3 = __DIR__.'/../resources/img/32/notebookteacher.png';
+        $srcfile4 = __DIR__.'/../resources/img/22/notebookteacher.png';
+        $dstfile1 = __DIR__.'/../../../main/img/icons/64/notebookteacher.png';
+        $dstfile2 = __DIR__.'/../../../main/img/icons/64/notebookteacher_na.png';
+        $dstfile3 = __DIR__.'/../../../main/img/icons/32/notebookteacher.png';
+        $dstfile4 = __DIR__.'/../../../main/img/notebookteacher.png';
+        copy($srcfile1, $dstfile1);
+        copy($srcfile2, $dstfile2);
+        copy($srcfile3, $dstfile3);
+        copy($srcfile4, $dstfile4);
+
+        Display::display_header(get_lang(ucfirst($tool)));
+        echo 'Plugin actualizado';
+        Display::display_footer();
+    }
+}

plugin/notebookteacher/start.php

@@ -0,0 +1,35 @@
+<?php
+/**
+ * This script initiates a notebookteacher plugin.
+ *
+ * @package chamilo.plugin.notebookteacher
+ */
+
+$course_plugin = 'notebookteacher';
+require_once __DIR__.'/config.php';
+
+$plugin = NotebookTeacherPlugin::create();
+$enable = $plugin->get('enable_plugin_notebookteacher') == 'true';
+
+if ($enable) {
+    if (api_is_teacher() || api_is_drh()) {
+        $url = 'src/index.php?'.api_get_cidreq();
+        header('Location: ' . $url);
+        exit;
+    } else {
+        /** @var \Chamilo\CoreBundle\Entity\Session $session */
+        $session = Database::getManager()
+        ->find('ChamiloCoreBundle:Session', api_get_session_id());
+        $_course = api_get_course_info();
+        $webCoursePath = api_get_path(WEB_COURSE_PATH);
+        $url = $webCoursePath.$_course['path'].'/index.php'.($session ? '?id_session='.$session->getId() : '');
+        
+        Display::addFlash(
+            Display::return_message($plugin->get_lang('ToolForTeacher'))
+        );
+
+        header('Location: ' . $url);
+    }
+} else {
+    echo $plugin->get_lang('ToolDisabled');
+}

plugin/notebookteacher/uninstall.php

@@ -0,0 +1,14 @@
+<?php
+/* For license terms, see /license.txt */
+/**
+ * This script is included by main/admin/settings.lib.php when unselecting a plugin
+ * and is meant to remove things installed by the install.php script in both
+ * the global database and the courses tables.
+ *
+ * @package chamilo.plugin.notebookteacher
+ */
+/**
+ * Queries
+ */
+require_once __DIR__ . '/config.php';
+NotebookTeacherPlugin::create()->uninstall();

plugin/notebookteacher/update.php

@@ -0,0 +1,16 @@
+<?php
+/* For license terms, see /license.txt */
+/**
+ * This script is included by main/admin/settings.lib.php and generally
+ * includes things to execute in the main database (settings_current table).
+ *
+ * @package chamilo.plugin.notebookteacher
+ */
+/**
+ * Initialization
+ */
+require_once __DIR__ . '/config.php';
+if (!api_is_platform_admin()) {
+    die('You must have admin permissions to install plugins');
+}
+NotebookTeacherPlugin::create()->update();