Actualización

plugin/notebookteacher/README.md

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+Este plugin da la posibilidad a los profesores de un curso escribir en un bloc de notas compartido.
+
+Los estudiantes no tienen acceso a las notas compartidas de los profesores.
+
+**Instrucciones de puesta en funcionamiento**
+
+- Subir la carpeta **notebookteacher** a la carpeta plugin de chamilo.
+
+- Habilitar el plugin en la administración de Chamilo.
+- El icono de la herramienta aparecerá en pantalla de los cursos con el resto de herramientas
+- Si no se visualiza el icono en el cursos correctamente y sale el icono de plugin genérico:
+    - Copiar los iconos de la carpeta resources/img/64 dentro de /main/img/icons/64
+    - Copiar el icono de la carpeta resources/img/22 dentro de /main/img
+
+**Solo si ya tiene instalado el plugin previamente:**
+
+Para actualizar la base de datos del plugin con los últimos cambios de la estructura deberá poner en su
+navegador la siguiente dirección cambiando el nombre del dominio con el que proceda en su caso.
+
+http://*sudominio.com*/**plugin/notebookteacher/update.php**

plugin/notebookteacher/config.php

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+<?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';

plugin/notebookteacher/database.php

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+<?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')) {
+    exit('This script must be loaded through the Chamilo plugin installer sequence');
+}
+
+$entityManager = Database::getManager();
+$pluginSchema = new \Doctrine\DBAL\Schema\Schema();
+$connection = $entityManager->getConnection();
+$platform = $connection->getDatabasePlatform();
+
+if ($pluginSchema->hasTable(NotebookTeacherPlugin::TABLE_NOTEBOOKTEACHER)) {
+    return;
+}
+
+//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

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+<?php
+/* For license terms, see /license.txt */
+require_once 'config.php';

plugin/notebookteacher/install.php

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+<?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
+ */
+require_once __DIR__.'/config.php';
+if (!api_is_platform_admin()) {
+    exit('You must have admin permissions to install plugins');
+}
+NotebookTeacherPlugin::create()->install();

plugin/notebookteacher/lang/english.php

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+<?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

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+<?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

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+<?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/src/NotebookTeacher.php

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+<?php
+/* For licensing terms, see /license.txt */
+
+use ChamiloSession as Session;
+
+/**
+ * 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
+ * @author Julio Montoya
+ *
+ * @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 javascriptNotebook()
+    {
+        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   $sessionId Optional. The session ID
+     *
+     * @return bool
+     */
+    public static function saveNote($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 $notebookId
+     *
+     * @return array|mixed
+     */
+    public static function getNoteInformation($notebookId)
+    {
+        if (empty($notebookId)) {
+            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 = $courseId AND id = '".intval($notebookId)."' ";
+        $result = Database::query($sql);
+        if (Database::num_rows($result) != 1) {
+            return [];
+        }
+
+        return Database::fetch_array($result);
+    }
+
+    /**
+     * This functions updates the note in the database.
+     *
+     * @param array $values
+     *
+     * @return bool
+     */
+    public static function updateNote($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 $notebookId
+     *
+     * @return bool
+     */
+    public static function deleteNote($notebookId)
+    {
+        if (empty($notebookId) || $notebookId != strval(intval($notebookId))) {
+            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 = $courseId AND
+                    id = '".intval($notebookId)."' 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 displayNotes()
+    {
+        $plugin = NotebookTeacherPlugin::create();
+        $userInfo = api_get_user_info();
+        $sortDirection = 'DESC';
+        $linkSortDirection = 'ASC';
+
+        if (!isset($_GET['direction'])) {
+            $sortDirection = 'ASC';
+            $linkSortDirection = 'DESC';
+        } elseif ($_GET['direction'] == 'ASC') {
+            $sortDirection = 'ASC';
+            $linkSortDirection = 'DESC';
+        }
+
+        $studentId = isset($_GET['student_id']) ? (int) $_GET['student_id'] : 0;
+        $currentUrl = api_get_self().'?'.api_get_cidreq().'&student_id='.$studentId;
+        $sessionId = api_get_session_id();
+        $courseCode = api_get_course_id();
+        $courseId = api_get_course_int_id();
+
+        if (empty($sessionId)) {
+            $userList = CourseManager::get_user_list_from_course_code(
+                $courseCode,
+                0,
+                null,
+                null,
+                STUDENT
+            );
+        } else {
+            $userList = CourseManager::get_user_list_from_course_code(
+                $courseCode,
+                $sessionId,
+                null,
+                null,
+                0
+            );
+        }
+
+        $form = new FormValidator('search_student');
+
+        // Status
+        $students = [];
+        $students[] = $plugin->get_lang('AllStudent');
+        foreach ($userList as $key => $userItem) {
+            $students[$key] = api_get_person_name($userItem['firstname'], $userItem['lastname']);
+        }
+
+        $form->addElement(
+            'select',
+            'student_filter',
+            $plugin->get_lang('StudentFilter'),
+            $students,
+            [
+                'id' => 'student_filter',
+                'onchange' => 'javascript: studentFilter();',
+            ]
+        );
+        $user_data = ['student_filter' => $studentId];
+        $form->setDefaults($user_data);
+
+        $selectStudent = $form->returnForm();
+
+        // action links
+        echo '<div class="actions">';
+        if (!api_is_drh()) {
+            if (!api_is_anonymous()) {
+                if (empty($sessionId)) {
+                    echo '<a href="'.$currentUrl.'&action=addnote">'.
+                        Display::return_icon(
+                            'new_note.png',
+                            get_lang('NoteAddNew'),
+                            '',
+                            '32'
+                        ).'</a>';
+                } elseif (api_is_allowed_to_session_edit(false, true)) {
+                    echo '<a href="'.$currentUrl.'&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="'.$currentUrl.
+                '&action=changeview&view=creation_date&direction='.$linkSortDirection.'">'.
+            Display::return_icon('notes_order_by_date_new.png', get_lang('OrderByCreationDate'), '', '32').'</a>';
+        echo '<a href="'.$currentUrl.
+                '&action=changeview&view=update_date&direction='.$linkSortDirection.'">'.
+            Display::return_icon('notes_order_by_date_mod.png', get_lang('OrderByModificationDate'), '', '32').'</a>';
+        echo '<a href="'.$currentUrl.
+                '&action=changeview&view=title&direction='.$linkSortDirection.'">'.
+            Display::return_icon('notes_order_by_title.png', get_lang('OrderByTitle'), '', '32').'</a>';
+
+        echo '</div>';
+        echo '<div class="row">'.$selectStudent.'</div>';
+        $view = Session::read('notebook_view');
+        if (!isset($view) ||
+            !in_array($view, ['creation_date', 'update_date', 'title'])
+        ) {
+            Session::write('notebook_view', 'creation_date');
+        }
+
+        $view = Session::read('notebook_view');
+        // Database table definition
+        $tableNotebook = Database::get_main_table(NotebookTeacherPlugin::TABLE_NOTEBOOKTEACHER);
+        if ($view == 'creation_date' || $view == 'update_date') {
+            $orderBy = " ORDER BY `$view` $sortDirection ";
+        } else {
+            $orderBy = " ORDER BY `$view` $sortDirection ";
+        }
+
+        // condition for the session
+        $conditionSession = api_get_session_condition($sessionId);
+        $condExtra = $view == 'update_date' ? " AND update_date <> ''" : " ";
+
+        if ($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) {
+                        $studentText = '';
+                        if ($row['student_id'] > 0) {
+                            $studentInfo = api_get_user_info($row['student_id']);
+                            $studentText = $studentInfo['complete_name_with_username'];
+                        }
+                        echo Display::page_subheader2($studentText);
+                        $first = false;
+                    }
+
+                    // Validation when belongs to a session
+                    $sessionImg = api_get_session_image($row['session_id'], $userInfo['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'];
+                    $actions = '';
+                    if (intval($row['user_id']) == api_get_user_id()) {
+                        $actions = '<a href="'.
+                                api_get_self().'?'.
+                                api_get_cidreq().'&student_id='.$studentId.'&action=editnote&notebook_id='.$row['id'].'">'.
+                                Display::return_icon('edit.png', get_lang('Edit'), '', ICON_SIZE_SMALL).'</a>';
+                        $actions .= '<a href="'.
+                                api_get_self().
+                                '?action=deletenote&student_id='.$studentId.'&notebook_id='.$row['id'].
+                                '" onclick="return confirmation(\''.$row['title'].'\');">'.
+                                Display::return_icon('delete.png', get_lang('Delete'), '', ICON_SIZE_SMALL).'</a>';
+                    }
+                    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($plugin->get_lang('NoNotebookUser'), 'warning');
+            }
+        } else {
+            // All students
+            foreach ($userList 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'], $userInfo['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'];
+
+                        $actions = '';
+                        if (intval($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>';
+                        }
+
+                        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'], $userInfo['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'];
+                    $actions = '';
+                    if (intval($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>';
+                    }
+
+                    echo Display::panel(
+                        $row['description'],
+                        $row['title'].$sessionImg.' <div class="pull-right">'.$actions.'</div>',
+                        get_lang('CreationDate').': '.
+                        Display::dateToStringAgoAndLongDate($row['creation_date']).$updateValue.$author
+                    );
+                }
+            }
+        }
+    }
+
+    /**
+     * @param FormValidator $form
+     * @param int           $studentId
+     *
+     * @return FormValidator
+     */
+    public static function getForm($form, $studentId)
+    {
+        $sessionId = api_get_session_id();
+        $courseCode = api_get_course_id();
+        if (empty($sessionId)) {
+            $userList = CourseManager::get_user_list_from_course_code(
+                $courseCode,
+                0,
+                null,
+                null,
+                STUDENT
+            );
+        } else {
+            $userList = CourseManager::get_user_list_from_course_code(
+                $courseCode,
+                $sessionId,
+                null,
+                null,
+                0
+            );
+        }
+
+        $students = ['' => ''];
+        foreach ($userList as $key => $userItem) {
+            $students[$key] = api_get_person_name($userItem['firstname'], $userItem['lastname']);
+        }
+
+        $form->addElement(
+            'select',
+            'student_id',
+            get_lang('Student'),
+            $students
+        );
+
+        $form->addElement('text', 'note_title', get_lang('NoteTitle'), ['id' => 'note_title']);
+        $form->applyFilter('text', 'html_filter');
+        $form->applyFilter('text', 'attr_on_filter');
+        $form->addHtmlEditor(
+            'note_comment',
+            get_lang('NoteComment'),
+            false,
+            false,
+            api_is_allowed_to_edit()
+                ? ['ToolbarSet' => 'Notebook', 'Width' => '100%', 'Height' => '300']
+                : ['ToolbarSet' => 'NotebookStudent', 'Width' => '100%', 'Height' => '300', 'UserStatus' => 'student']
+        );
+
+        $form->addButtonCreate(get_lang('Save'), 'SubmitNote');
+
+        // Setting the rules
+        $form->addRule('note_title', get_lang('ThisFieldIsRequired'), 'required');
+
+        return $form;
+    }
+}

plugin/notebookteacher/src/NotebookTeacherPlugin.php

@@ -0,0 +1,130 @@
+<?php
+/* For license terms, see /license.txt */
+
+/**
+ * Plugin class for the NotebookTeacher plugin.
+ *
+ * @package chamilo.plugin.notebookteacher
+ *
+ * @author Jose Angel Ruiz <desarrollo@nosolored.com>
+ * @author Julio Montoya
+ */
+class NotebookTeacherPlugin extends Plugin
+{
+    public const TABLE_NOTEBOOKTEACHER = 'plugin_notebook_teacher';
+    public $isCoursePlugin = true;
+
+    /**
+     * NotebookTeacherPlugin constructor.
+     */
+    protected function __construct()
+    {
+        parent::__construct(
+            '1.1',
+            'Jose Angel Ruiz - NoSoloRed (original author), Julio Montoya',
+            [
+                'enable_plugin_notebookteacher' => 'boolean',
+            ]
+        );
+
+        $this->isAdminPlugin = true;
+    }
+
+    /**
+     * @return NotebookTeacherPlugin
+     */
+    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;
+        }
+
+        $list = [
+            '/64/notebookteacher.png',
+            '/64/notebookteacher_na.png',
+            '/32/notebookteacher.png',
+            '/32/notebookteacher_na.png',
+            '/32/test2pdf_na.png',
+            '/22/notebookteacher.png',
+        ];
+
+        foreach ($list as $file) {
+            $source = __DIR__.'/../resources/img/'.$file;
+            $destination = __DIR__.'/../../../main/img/icons/'.$file;
+            $res = @copy($source, $destination);
+            if (!$res) {
+                break;
+            }
+        }
+
+        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();
+
+        $tablesToBeDeleted = [self::TABLE_NOTEBOOKTEACHER];
+        foreach ($tablesToBeDeleted as $tableToBeDeleted) {
+            $table = Database::get_main_table($tableToBeDeleted);
+            $sql = "DROP TABLE IF EXISTS $table";
+            Database::query($sql);
+        }
+        $this->manageTab(false);
+    }
+
+    /**
+     * Update.
+     */
+    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(self::TABLE_NOTEBOOKTEACHER)));
+        echo 'Plugin actualizado';
+        Display::display_footer();
+    }
+}

plugin/notebookteacher/src/index.php

@@ -0,0 +1,225 @@
+<?php
+/* For licensing terms, see /license.txt */
+
+use ChamiloSession as Session;
+
+$course_plugin = 'notebookteacher';
+require_once __DIR__.'/../config.php';
+
+// Notice for unauthorized people.
+api_protect_course_script(true);
+
+$_setting['student_view_enabled'] = 'false';
+
+$plugin = NotebookTeacherPlugin::create();
+$enable = $plugin->get('enable_plugin_notebookteacher') == 'true';
+
+if (!$enable) {
+    api_not_allowed(true, $plugin->get_lang('ToolDisabled'));
+}
+
+$allow = api_is_teacher() || api_is_drh();
+if (!$allow) {
+    api_not_allowed(true);
+}
+
+$current_course_tool = $plugin->get_lang('NotebookTeacher');
+$notebookId = isset($_GET['notebook_id']) ? (int) $_GET['notebook_id'] : 0;
+$studentId = isset($_GET['student_id']) ? $_GET['student_id'] : 0;
+$action = isset($_GET['action']) ? Security::remove_XSS($_GET['action']) : '';
+$currentUrl = api_get_self().'?'.api_get_cidreq().'&student_id='.$studentId;
+
+// The section (tabs)
+$this_section = SECTION_COURSES;
+$location = api_get_self().'?'.api_get_cidreq();
+
+// Additional javascript
+$htmlHeadXtra[] = NotebookTeacher::javascriptNotebook();
+$htmlHeadXtra[] = '<script>
+function setFocus(){
+    $("#note_title").focus();
+}
+$(document).ready(function () {
+    setFocus();
+});
+
+function studentFilter() {
+    var student_id = $("#student_filter").val();
+    location.href ="'.$location.'&student_id="+student_id;
+}
+</script>';
+
+// Tracking
+Event::event_access_tool('notebookteacher');
+
+$noteBookTeacher = $tool = $plugin->get_lang('NotebookTeacher');
+
+switch ($action) {
+    case 'addnote':
+        $tool = 'NoteAddNew';
+        $interbreadcrumb[] = [
+            'url' => 'index.php?'.api_get_cidreq(),
+            'name' => $noteBookTeacher,
+        ];
+
+        if ((api_get_session_id() != 0 &&
+            !api_is_allowed_to_session_edit(false, true) || api_is_drh())) {
+            api_not_allowed();
+        }
+        Session::write('notebook_view', 'creation_date');
+
+        $form = new FormValidator(
+            'note',
+            'post',
+            $currentUrl.'&action=addnote'
+        );
+        $form->addHeader(get_lang('NoteAddNew'));
+        $form = NotebookTeacher::getForm($form, $studentId);
+
+        $form->setDefaults(['student_id' => $studentId]);
+        // The validation or display
+        if ($form->validate()) {
+            $check = Security::check_token('post');
+            if ($check) {
+                $values = $form->exportValues();
+                $res = NotebookTeacher::saveNote($values);
+                if ($res) {
+                    Display::addFlash(Display::return_message(get_lang('NoteAdded'), 'confirmation'));
+                }
+            }
+
+            header('Location: '.$currentUrl);
+            exit;
+        } else {
+            // Displaying the header
+            Display::display_header(get_lang(ucfirst($tool)));
+
+            // Tool introduction
+            Display::display_introduction_section($noteBookTeacher);
+
+            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();
+        }
+        break;
+    case 'editnote':
+        $tool = 'ModifyNote';
+        $interbreadcrumb[] = [
+            'url' => 'index.php?'.api_get_cidreq(),
+            'name' => $noteBookTeacher,
+        ];
+
+        if (empty($notebookId)) {
+            api_not_allowed(true);
+        }
+
+        $defaults = NotebookTeacher::getNoteInformation($notebookId);
+
+        if (empty($defaults)) {
+            api_not_allowed(true);
+        }
+
+        $form = new FormValidator(
+            'note',
+            'post',
+            $currentUrl.'&action='.$action.'&notebook_id='.$notebookId
+        );
+        // Setting the form elements
+        $form->addHeader(get_lang('ModifyNote'));
+        $form->addHidden('notebook_id', $notebookId);
+        $form = NotebookTeacher::getForm($form, $defaults['student_id']);
+
+        // Setting the defaults
+        $form->setDefaults($defaults);
+
+        // The validation or display
+        if ($form->validate()) {
+            $check = Security::check_token('post');
+            if ($check) {
+                $values = $form->exportValues();
+                $res = NotebookTeacher::updateNote($values);
+                if ($res) {
+                    Display::addFlash(Display::return_message(get_lang('NoteUpdated'), 'confirmation'));
+                }
+            }
+            header('Location: '.$currentUrl);
+            exit;
+        } else {
+            // Displaying the header
+            Display::display_header(get_lang(ucfirst($tool)));
+
+            // Tool introduction
+            Display::display_introduction_section($noteBookTeacher);
+            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();
+        }
+        break;
+    case 'deletenote':
+        $res = NotebookTeacher::deleteNote($notebookId);
+        if ($res) {
+            Display::addFlash(Display::return_message(get_lang('NoteDeleted'), 'confirmation'));
+        }
+        header('Location: '.$currentUrl);
+        exit;
+        break;
+    case 'changeview':
+        if (in_array($_GET['view'], ['creation_date', 'update_date', 'title'])) {
+            switch ($_GET['view']) {
+                case 'creation_date':
+                    if (!$_GET['direction'] || $_GET['direction'] == 'ASC') {
+                        Display::addFlash(
+                            Display::return_message(get_lang('NotesSortedByCreationDateAsc'), 'confirmation')
+                        );
+                    } else {
+                        Display::addFlash(
+                            Display::return_message(get_lang('NotesSortedByCreationDateDESC'), 'confirmation')
+                        );
+                    }
+                    break;
+                case 'update_date':
+                    if (!$_GET['direction'] || $_GET['direction'] == 'ASC') {
+                        Display::addFlash(
+                            Display::return_message(get_lang('NotesSortedByUpdateDateAsc'), 'confirmation')
+                        );
+                    } else {
+                        Display::addFlash(
+                            Display::return_message(get_lang('NotesSortedByUpdateDateDESC'), 'confirmation')
+                        );
+                    }
+                    break;
+                case 'title':
+                    if (!$_GET['direction'] || $_GET['direction'] == 'ASC') {
+                        Display::addFlash(Display::return_message(get_lang('NotesSortedByTitleAsc'), 'confirmation'));
+                    } else {
+                        Display::addFlash(Display::return_message(get_lang('NotesSortedByTitleDESC'), 'confirmation'));
+                    }
+                    break;
+            }
+            Session::write('notebook_view', Security::remove_XSS($_GET['view']));
+            header('Location: '.$currentUrl);
+            exit;
+        }
+        break;
+    default:
+        // Displaying the header
+        Display::display_header(get_lang(ucfirst($tool)));
+
+        // Tool introduction
+        Display::display_introduction_section($noteBookTeacher);
+        NotebookTeacher::displayNotes();
+        break;
+}
+
+Display::display_footer();

plugin/notebookteacher/start.php

@@ -0,0 +1,33 @@
+<?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 {
+        $session = api_get_session_entity(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);
+        exit;
+    }
+} else {
+    api_not_allowed(true, $plugin->get_lang('ToolDisabled'));
+}

plugin/notebookteacher/uninstall.php

@@ -0,0 +1,12 @@
+<?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
+ */
+require_once __DIR__.'/config.php';
+NotebookTeacherPlugin::create()->uninstall();

plugin/notebookteacher/update.php

@@ -0,0 +1,14 @@
+<?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
+ */
+require_once __DIR__.'/config.php';
+
+if (!api_is_platform_admin()) {
+    exit('You must have admin permissions to install plugins');
+}
+NotebookTeacherPlugin::create()->update();