Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/inc/lib/notebook.lib.php

232 lines
10 KiB

<?php
/* For licensing terms, see /license.txt */
/**
* 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
* @package chamilo.library
*/
class NotebookManager
{
private function __construct()
{
}
/**
* a little bit of javascript to display a prettier warning when deleting a note
*
* @return unknown
*
* @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
* @version januari 2009, dokeos 1.8.6
*/
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 $values
* @return bool
* @author Christian Fasanando <christian.fasanando@dokeos.com>
* @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
* @version januari 2009, dokeos 1.8.6
*
*/
static function save_note($values)
{
if (!is_array($values) or empty($values['note_title'])) {
return false;
}
// Database table definition
$t_notebook = Database :: get_course_table(TABLE_NOTEBOOK);
$course_id = api_get_course_int_id();
$sql = "INSERT INTO $t_notebook (c_id, user_id, course, session_id, title, description, creation_date,update_date,status)
VALUES(
$course_id,
'" . api_get_user_id() . "',
'" . Database::escape_string(api_get_course_id()) . "',
'" . Database::escape_string($_SESSION['id_session']) . "',
'" . Database::escape_string($values['note_title']) . "',
'" . Database::escape_string($values['note_comment']) . "',
'" . Database::escape_string(date('Y-m-d H:i:s')) . "',
'" . Database::escape_string(date('Y-m-d H:i:s')) . "',
'0')";
$result = Database::query($sql);
$id = Database::insert_id();
if ($id > 0) {
//insert into item_property
api_item_property_update(api_get_course_info(), TOOL_NOTEBOOK, $id, 'NotebookAdded', api_get_user_id());
}
$affected_rows = Database::affected_rows();
if (!empty($affected_rows)) {
return $id;
}
}
static function get_note_information($notebook_id) {
if (empty($notebook_id)) {
return array();
}
// Database table definition
$t_notebook = Database :: get_course_table(TABLE_NOTEBOOK);
$course_id = api_get_course_int_id();
$sql = "SELECT notebook_id AS notebook_id,
title AS note_title,
description AS note_comment,
session_id AS session_id
FROM $t_notebook
WHERE c_id = $course_id AND notebook_id = '" . Database::escape_string($notebook_id) . "' ";
$result = Database::query($sql);
if (Database::num_rows($result) != 1) {
return array();
}
return Database::fetch_array($result);
}
/**
* This functions updates the note in the database
*
* @param array $values
*
* @author Christian Fasanando <christian.fasanando@dokeos.com>
* @author Patrick Cool <patrick.cool@ugent.be>, Ghent University, Belgium
* @version januari 2009, dokeos 1.8.6
*/
static function update_note($values) {
if (!is_array($values) or empty($values['note_title'])) {
return false;
}
// Database table definition
$t_notebook = Database :: get_course_table(TABLE_NOTEBOOK);
$course_id = api_get_course_int_id();
$sql = "UPDATE $t_notebook SET
user_id = '" . api_get_user_id() . "',
course = '" . Database::escape_string(api_get_course_id()) . "',
session_id = '" . Database::escape_string($_SESSION['id_session']) . "',
title = '" . Database::escape_string($values['note_title']) . "',
description = '" . Database::escape_string($values['note_comment']) . "',
update_date = '" . Database::escape_string(date('Y-m-d H:i:s')) . "'
WHERE c_id = $course_id AND notebook_id = '" . Database::escape_string($values['notebook_id']) . "'";
$result = Database::query($sql);
//update item_property (update)
api_item_property_update(api_get_course_info(), TOOL_NOTEBOOK, $values['notebook_id'], 'NotebookUpdated', api_get_user_id());
$affected_rows = Database::affected_rows();
if (!empty($affected_rows)) {
return true;
}
}
static function delete_note($notebook_id)
{
if (empty($notebook_id) or $notebook_id != strval(intval($notebook_id))) {
return false;
}
// Database table definition
$t_notebook = Database :: get_course_table(TABLE_NOTEBOOK);
$course_id = api_get_course_int_id();
$sql = "DELETE FROM $t_notebook WHERE c_id = $course_id AND notebook_id='" . intval($notebook_id) . "' AND user_id = '" . api_get_user_id() . "'";
$result = Database::query($sql);
$affected_rows = Database::affected_rows();
if ($affected_rows != 1) {
return false;
}
//update item_property (delete)
api_item_property_update(api_get_course_info(), TOOL_NOTEBOOK, intval($notebook_id), 'delete', api_get_user_id());
return true;
}
static function display_notes()
{
global $_user;
if (!$_GET['direction']) {
$sort_direction = 'ASC';
$link_sort_direction = 'DESC';
} elseif ($_GET['direction'] == 'ASC') {
$sort_direction = 'ASC';
$link_sort_direction = 'DESC';
} else {
$sort_direction = 'DESC';
$link_sort_direction = 'ASC';
}
// action links
echo '<div class="actions">';
if (!api_is_anonymous()) {
if (api_get_session_id() == 0)
echo '<a href="index.php?' . api_get_cidreq() . '&amp;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() . '&amp;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() . '&amp;action=changeview&amp;view=creation_date&amp;direction=' . $link_sort_direction . '">' . Display::return_icon('notes_order_by_date_new.png', get_lang('OrderByCreationDate'), '', '32') . '</a>';
echo '<a href="index.php?' . api_get_cidreq() . '&amp;action=changeview&amp;view=update_date&amp;direction=' . $link_sort_direction . '">' . Display::return_icon('notes_order_by_date_mod.png', get_lang('OrderByModificationDate'), '', '32') . '</a>';
echo '<a href="index.php?' . api_get_cidreq() . '&amp;action=changeview&amp;view=title&amp;direction=' . $link_sort_direction . '">' . Display::return_icon('notes_order_by_title.png', get_lang('OrderByTitle'), '', '32') . '</a>';
echo '</div>';
if (!in_array($_SESSION['notebook_view'], array('creation_date', 'update_date', 'title'))) {
$_SESSION['notebook_view'] = 'creation_date';
}
// Database table definition
$t_notebook = Database :: get_course_table(TABLE_NOTEBOOK);
$order_by = "";
if ($_SESSION['notebook_view'] == 'creation_date' || $_SESSION['notebook_view'] == 'update_date') {
$order_by = " ORDER BY " . $_SESSION['notebook_view'] . " $sort_direction ";
} else {
$order_by = " ORDER BY " . $_SESSION['notebook_view'] . " $sort_direction ";
}
//condition for the session
$session_id = api_get_session_id();
$condition_session = api_get_session_condition($session_id);
$cond_extra = ($_SESSION['notebook_view'] == 'update_date') ? " AND update_date <> '0000-00-00 00:00:00'" : " ";
$course_id = api_get_course_int_id();
$sql = "SELECT * FROM $t_notebook WHERE c_id = $course_id AND user_id = '" . api_get_user_id() . "' $condition_session $cond_extra $order_by";
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
//validacion when belongs to a session
$session_img = api_get_session_image($row['session_id'], $_user['status']);
$creation_date = api_get_local_time($row['creation_date'], null, date_default_timezone_get());
$update_date = api_get_local_time($row['update_date'], null, date_default_timezone_get());
echo '<div class="sectiontitle">';
echo '<span style="float: right;"> (' . get_lang('CreationDate') . ': ' . date_to_str_ago($creation_date) . '&nbsp;&nbsp;<span class="dropbox_date">' . $creation_date . '</span>';
if ($row['update_date'] <> $row['creation_date']) {
echo ', ' . get_lang('UpdateDate') . ': ' . date_to_str_ago($update_date) . '&nbsp;&nbsp;<span class="dropbox_date">' . $update_date . '</span>';
}
echo ')</span>';
echo $row['title'] . $session_img;
echo '</div>';
echo '<div class="sectioncomment">' . $row['description'] . '</div>';
echo '<div>';
echo '<a href="' . api_get_self() . '?action=editnote&amp;notebook_id=' . $row['notebook_id'] . '">' . Display::return_icon('edit.png', get_lang('Edit'), '', ICON_SIZE_SMALL) . '</a>';
echo '<a href="' . api_get_self() . '?action=deletenote&amp;notebook_id=' . $row['notebook_id'] . '" onclick="return confirmation(\'' . $row['title'] . '\');">' . Display::return_icon('delete.png', get_lang('Delete'), '', ICON_SIZE_SMALL) . '</a>';
echo '</div>';
}
}
}