'; echo '

'.get_lang('SystemAnnouncements').'

'; echo ''; while ($announcement = Database::fetch_object($announcements)) { if ($id != $announcement->id) { if (strlen($query_string) > 0) { $show_url = 'news_list.php#'.$announcement->id; } else { $show_url = 'news_list.php#'.$announcement->id; } $display_date = api_convert_and_format_date($announcement->display_date, DATE_FORMAT_LONG); echo ' '; } else { echo ''; } return; } /** * @param string $visibility * @param int $id * @param int $start * @param string $user_id * @return string */ public static function displayAllAnnouncements($visibility, $id = -1, $start = 0, $user_id = '') { $user_selected_language = api_get_interface_language(); $start = intval($start); $userGroup = new UserGroup(); $tbl_announcement_group = Database::get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS_GROUPS); $temp_user_groups = $userGroup->get_groups_by_user(api_get_user_id(), 0); $groups = array(); foreach ($temp_user_groups as $user_group) { $groups = array_merge($groups, array($user_group['id'])); $groups = array_merge($groups, $userGroup->get_parent_groups($user_group['id'])); } // Checks if tables exists to not break platform not updated $groups_string = '('.implode($groups, ',').')'; $table = Database::get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS); $now = api_get_utc_datetime(); $sql = "SELECT * FROM $table WHERE (lang = '$user_selected_language' OR lang IS NULL) AND ( '$now' >= date_start AND '$now' <= date_end) "; $sql .= self::getVisibilityCondition($visibility); if (count($groups) > 0) { $sql .= " OR id IN ( SELECT announcement_id FROM $tbl_announcement_group WHERE group_id in $groups_string ) "; } if (api_is_multiple_url_enabled()) { $current_access_url_id = api_get_current_access_url_id(); $sql .= " AND access_url_id IN ('1', '$current_access_url_id')"; } if (!isset($_GET['start']) || $_GET['start'] == 0) { $sql .= " ORDER BY date_start DESC LIMIT ".$start.",20"; } else { $sql .= " ORDER BY date_start DESC LIMIT ".($start + 1).",20"; } $announcements = Database::query($sql); $content = ''; if (Database::num_rows($announcements) > 0) { $content .= ''; } return $content; } /** * @param int $user_id * @return string */ public static function display_arrow($user_id) { $start = (int) $_GET['start']; $nb_announcement = self::count_nb_announcement($start, $user_id); $next = ((int) $_GET['start'] + 19); $prev = ((int) $_GET['start'] - 19); $content = ''; if (!isset($_GET['start']) || $_GET['start'] == 0) { if ($nb_announcement > 20) { $content .= ''.get_lang('NextBis').' >> '; } } else { echo ' << '.get_lang('Prev').''; if ($nb_announcement > 20) { $content .= ''.get_lang('NextBis').' >> '; } } return $content; } /** * @param int $start * @param string $user_id * @return int */ public static function count_nb_announcement($start = 0, $user_id = '') { $start = intval($start); $user_selected_language = api_get_interface_language(); $db_table = Database::get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS); $sql = 'SELECT id FROM '.$db_table.' WHERE (lang="'.$user_selected_language.'" OR lang IS NULL) '; $visibility = self::getCurrentUserVisibility(); $sql .= self::getVisibilityCondition($visibility); $current_access_url_id = 1; if (api_is_multiple_url_enabled()) { $current_access_url_id = api_get_current_access_url_id(); } $sql .= " AND access_url_id = '$current_access_url_id' "; $sql .= 'LIMIT '.$start.', 21'; $announcements = Database::query($sql); $i = 0; while ($rows = Database::fetch_array($announcements)) { $i++; } return $i; } /** * Get all announcements * @return array An array with all available system announcements (as php * objects) */ public static function get_all_announcements() { $table = Database::get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS); $now = api_get_utc_datetime(); $sql = "SELECT *, IF ( '$now' >= date_start AND '$now' <= date_end, '1', '0') AS visible FROM $table"; $current_access_url_id = 1; if (api_is_multiple_url_enabled()) { $current_access_url_id = api_get_current_access_url_id(); } $sql .= " WHERE access_url_id = '$current_access_url_id' "; $sql .= " ORDER BY date_start ASC"; $result = Database::query($sql); $announcements = array(); while ($announcement = Database::fetch_object($result)) { $announcements[] = $announcement; } return $announcements; } /** * Adds an announcement to the database * * @param string $title Title of the announcement * @param string $content Content of the announcement * @param string $date_start Start date (YYYY-MM-DD HH:II: SS) * @param string $date_end End date (YYYY-MM-DD HH:II: SS) * @param array $visibility * @param string $lang The language for which the announvement should be shown. Leave null for all langages * @param int $send_mail Whether to send an e-mail to all users (1) or not (0) * @param bool $add_to_calendar * @param bool $sendEmailTest * * @return mixed insert_id on success, false on failure */ public static function add_announcement( $title, $content, $date_start, $date_end, $visibility, $lang = '', $send_mail = 0, $add_to_calendar = false, $sendEmailTest = false ) { $original_content = $content; $a_dateS = explode(' ', $date_start); $a_arraySD = explode('-', $a_dateS[0]); $a_arraySH = explode(':', $a_dateS[1]); $date_start_to_compare = array_merge($a_arraySD, $a_arraySH); $a_dateE = explode(' ', $date_end); $a_arrayED = explode('-', $a_dateE[0]); $a_arrayEH = explode(':', $a_dateE[1]); $date_end_to_compare = array_merge($a_arrayED, $a_arrayEH); $db_table = Database::get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS); if (!checkdate($date_start_to_compare[1], $date_start_to_compare[2], $date_start_to_compare[0])) { Display::addFlash(Display::return_message(get_lang('InvalidStartDate'), 'warning')); return false; } if (($date_end_to_compare[1] || $date_end_to_compare[2] || $date_end_to_compare[0]) && !checkdate($date_end_to_compare[1], $date_end_to_compare[2], $date_end_to_compare[0]) ) { Display::addFlash(Display::return_message(get_lang('InvalidEndDate'), 'warning')); return false; } if (strlen(trim($title)) == 0) { Display::addFlash(Display::return_message(get_lang('InvalidTitle'), 'warning')); return false; } $start = api_get_utc_datetime($date_start); $end = api_get_utc_datetime($date_end); //Fixing urls that are sent by email //$content = str_replace('src=\"/home/', 'src=\"'.api_get_path(WEB_PATH).'home/', $content); //$content = str_replace('file=/home/', 'file='.api_get_path(WEB_PATH).'home/', $content); $content = str_replace('src=\"'.api_get_path(REL_HOME_PATH), 'src=\"'.api_get_path(WEB_PATH).api_get_path(REL_HOME_PATH), $content); $content = str_replace('file='.api_get_path(REL_HOME_PATH), 'file='.api_get_path(WEB_PATH).api_get_path(REL_HOME_PATH), $content); $lang = is_null($lang) ? '' : $lang; $current_access_url_id = 1; if (api_is_multiple_url_enabled()) { $current_access_url_id = api_get_current_access_url_id(); } $params = [ 'title' => $title, 'content' => $content, 'date_start' => $start, 'date_end' => $end, 'lang' => $lang, 'access_url_id' => $current_access_url_id ]; foreach ($visibility as $key => $value) { $params[$key] = $value; } $resultId = Database::insert($db_table, $params); if ($resultId) { if ($sendEmailTest) { self::send_system_announcement_by_email( $title, $content, $visibility, $lang, true ); } else { if ($send_mail == 1) { self::send_system_announcement_by_email( $title, $content, $visibility, $lang ); } } if ($add_to_calendar) { $agenda = new Agenda('admin'); $agenda->addEvent( $date_start, $date_end, false, $title, $original_content ); } return $resultId; } return false; } /** * Makes the announcement id visible only for groups in groups_array * @param int $announcement_id * @param array $group_array array of group id * @return bool **/ public static function announcement_for_groups($announcement_id, $group_array) { $tbl_announcement_group = Database::get_main_table( TABLE_MAIN_SYSTEM_ANNOUNCEMENTS_GROUPS ); //first delete all group associations for this announcement $res = Database::query( "DELETE FROM $tbl_announcement_group WHERE announcement_id=".intval($announcement_id) ); if ($res === false) { return false; } foreach ($group_array as $group_id) { if (intval($group_id) != 0) { $sql = "INSERT INTO $tbl_announcement_group SET announcement_id=".intval($announcement_id).", group_id=".intval($group_id); $res = Database::query($sql); if ($res === false) { return false; } } } return true; } /** * Gets the groups of this announce * @param int announcement id * @return array array of group id **/ public static function get_announcement_groups($announcement_id) { $tbl_announcement_group = Database::get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS_GROUPS); $tbl_group = Database::get_main_table(TABLE_USERGROUP); //first delete all group associations for this announcement $sql = "SELECT g.id as group_id, g.name as group_name FROM $tbl_group g , $tbl_announcement_group ag WHERE announcement_id =".intval($announcement_id)." AND ag.group_id = g.id"; $res = Database::query($sql); $groups = Database::fetch_array($res); return $groups; } /** * Updates an announcement to the database * * @param integer $id of the announcement * @param string $title title of the announcement * @param string $content content of the announcement * @param array $date_start start date (0 => day ; 1 => month ; 2 => year ; 3 => hour ; 4 => minute) * @param array $date_end end date of (0 => day ; 1 => month ; 2 => year ; 3 => hour ; 4 => minute) * @param array $visibility * @return bool True on success, false on failure */ public static function update_announcement( $id, $title, $content, $date_start, $date_end, $visibility, $lang = null, $send_mail = 0, $sendEmailTest = false ) { $em = Database::getManager(); $announcement = $em->find('ChamiloCoreBundle:SysAnnouncement', $id); if (!$announcement) { return false; } $a_dateS = explode(' ', $date_start); $a_arraySD = explode('-', $a_dateS[0]); $a_arraySH = explode(':', $a_dateS[1]); $date_start_to_compare = array_merge($a_arraySD, $a_arraySH); $a_dateE = explode(' ', $date_end); $a_arrayED = explode('-', $a_dateE[0]); $a_arrayEH = explode(':', $a_dateE[1]); $date_end_to_compare = array_merge($a_arrayED, $a_arrayEH); $lang = is_null($lang) ? '' : $lang; if (!checkdate($date_start_to_compare[1], $date_start_to_compare[2], $date_start_to_compare[0])) { echo Display::return_message(get_lang('InvalidStartDate')); return false; } if (($date_end_to_compare[1] || $date_end_to_compare[2] || $date_end_to_compare[0]) && !checkdate($date_end_to_compare[1], $date_end_to_compare[2], $date_end_to_compare[0]) ) { echo Display::return_message(get_lang('InvalidEndDate')); return false; } if (strlen(trim($title)) == 0) { echo Display::return_message(get_lang('InvalidTitle')); return false; } $start = api_get_utc_datetime($date_start); $end = api_get_utc_datetime($date_end); //Fixing urls that are sent by email //$content = str_replace('src=\"/home/', 'src=\"'.api_get_path(WEB_PATH).'home/', $content); //$content = str_replace('file=/home/', 'file='.api_get_path(WEB_PATH).'home/', $content); $content = str_replace('src=\"'.api_get_path(REL_HOME_PATH), 'src=\"'.api_get_path(WEB_PATH).api_get_path(REL_HOME_PATH), $content); $content = str_replace('file='.api_get_path(REL_HOME_PATH), 'file='.api_get_path(WEB_PATH).api_get_path(REL_HOME_PATH), $content); if ($sendEmailTest) { self::send_system_announcement_by_email( $title, $content, null, null, $lang, $sendEmailTest ); } else { if ($send_mail == 1) { self::send_system_announcement_by_email( $title, $content, $visibility, $lang ); } } $dateStart = new DateTime($start, new DateTimeZone('UTC')); $dateEnd = new DateTime($end, new DateTimeZone('UTC')); $announcement ->setLang($lang) ->setTitle($title) ->setContent($content) ->setDateStart($dateStart) ->setDateEnd($dateEnd) //->setVisibleTeacher($visible_teacher) //->setVisibleStudent($visible_student) //->setVisibleGuest($visible_guest) ->setAccessUrlId(api_get_current_access_url_id()); $em->merge($announcement); $em->flush(); // Update visibility $list = self::getVisibilityList(); $table = Database::get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS); foreach ($list as $key => $title) { $value = isset($visibility[$key]) && $visibility[$key] ? 1 : 0; $sql = "UPDATE $table SET $key = '$value' WHERE id = $id"; Database::query($sql); } return true; } /** * Deletes an announcement * @param int $id The identifier of the announcement that should be * @return bool True on success, false on failure */ public static function delete_announcement($id) { $table = Database::get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS); $id = intval($id); $sql = "DELETE FROM $table WHERE id =".$id; $res = Database::query($sql); if ($res === false) { return false; } return true; } /** * Gets an announcement * @param int $id The identifier of the announcement that should be * @return object Object of class StdClass or the required class, containing the query result row */ public static function get_announcement($id) { $db_table = Database::get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS); $id = intval($id); $sql = "SELECT * FROM ".$db_table." WHERE id = ".$id; $announcement = Database::fetch_object(Database::query($sql)); return $announcement; } /** * Change the visibility of an announcement * @param int $id * @param int $user For who should the visibility be changed * @param bool $visible * @return bool True on success, false on failure */ public static function set_visibility($id, $user, $visible) { $table = Database::get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS); $id = (int) $id; $list = array_keys(self::getVisibilityList()); $user = trim($user); $visible = (int) $visible; if (!in_array($user, $list)) { return false; } $field = $user; $sql = "UPDATE $table SET ".$field." = '".$visible."' WHERE id='".$id."'"; $res = Database::query($sql); if ($res === false) { return false; } return true; } /** * Send a system announcement by e-mail to all teachers/students depending on parameters * @param string $title * @param string $content * @param array $visibility * @param string $language Language (optional, considered for all languages if left empty) * @param bool $sendEmailTest * @return bool True if the message was sent or there was no destination matching. * False on database or e-mail sending error. */ public static function send_system_announcement_by_email( $title, $content, $visibility, $language = null, $sendEmailTest = false ) { $content = str_replace(array('\r\n', '\n', '\r'), '', $content); $now = api_get_utc_datetime(); $teacher = $visibility['visible_teacher']; $student = $visibility['visible_student']; if ($sendEmailTest) { MessageManager::send_message_simple(api_get_user_id(), $title, $content); return true; } $user_table = Database::get_main_table(TABLE_MAIN_USER); if (api_is_multiple_url_enabled()) { $current_access_url_id = api_get_current_access_url_id(); $url_rel_user = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER); $url_condition = " INNER JOIN $url_rel_user uu ON uu.user_id = u.user_id "; } if ($teacher <> 0 && $student == 0) { $sql = "SELECT DISTINCT u.user_id FROM $user_table u $url_condition WHERE status = '1' "; } if ($teacher == 0 && $student <> 0) { $sql = "SELECT DISTINCT u.user_id FROM $user_table u $url_condition WHERE status = '5' "; } if ($teacher <> 0 && $student <> 0) { $sql = "SELECT DISTINCT u.user_id FROM $user_table u $url_condition WHERE 1 = 1 "; } if (!empty($language)) { //special condition because language was already treated for SQL insert before $sql .= " AND language = '".Database::escape_string($language)."' "; } if (api_is_multiple_url_enabled()) { $sql .= " AND access_url_id = '".$current_access_url_id."' "; } // Sent to active users. $sql .= " AND email <>'' AND active = 1 "; // Expiration date $sql .= " AND (expiration_date = '' OR expiration_date IS NULL OR expiration_date > '$now') "; if ((empty($teacher) || $teacher == '0') && (empty($student) || $student == '0')) { return true; } $result = Database::query($sql); if ($result === false) { return false; } $message_sent = false; while ($row = Database::fetch_array($result, 'ASSOC')) { MessageManager::send_message_simple($row['user_id'], $title, $content); $message_sent = true; } // Minor validation to clean up the attachment files in the announcement if (!empty($_FILES)) { $attachments = $_FILES; foreach ($attachments as $attachment) { unlink($attachment['tmp_name']); } } return $message_sent; //true if at least one e-mail was sent } /** * Displays announcements as an slideshow * @param string $visible see self::VISIBLE_* constants * @param int $id The identifier of the announcement to display * * @return string */ public static function displayAnnouncementsSlider($visible, $id = null) { $user_selected_language = Database::escape_string(api_get_interface_language()); $table = Database::get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS); $cut_size = 500; $now = api_get_utc_datetime(); $sql = "SELECT * FROM $table WHERE (lang = '$user_selected_language' OR lang = '') AND ('$now' >= date_start AND '$now' <= date_end) "; $sql .= self::getVisibilityCondition($visible); if (isset($id) && !empty($id)) { $id = intval($id); $sql .= " AND id = $id "; } if (api_is_multiple_url_enabled()) { $current_url_id = api_get_current_access_url_id(); $sql .= " AND access_url_id IN ('1', '$current_url_id') "; } $sql .= " ORDER BY date_start DESC"; $result = Database::query($sql); $announcements = []; if (Database::num_rows($result) > 0) { while ($announcement = Database::fetch_object($result)) { $announcementData = [ 'id' => $announcement->id, 'title' => $announcement->title, 'content' => $announcement->content, 'readMore' => null ]; if (empty($id)) { if (api_strlen(strip_tags($announcement->content)) > $cut_size) { $announcementData['content'] = cut($announcement->content, $cut_size); $announcementData['readMore'] = true; } } $announcements[] = $announcementData; } } if (count($announcements) === 0) { return null; } $template = new Template(null, false, false); $template->assign('announcements', $announcements); $layout = $template->get_template('announcement/slider.tpl'); return $template->fetch($layout); } /** * Get the HTML code for an announcement * @param int $announcementId The announcement ID * @param int $visibility The announcement visibility * @return string The HTML code */ public static function displayAnnouncement($announcementId, $visibility) { $selectedUserLanguage = Database::escape_string(api_get_interface_language()); $announcementTable = Database::get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS); $now = api_get_utc_datetime(); $whereConditions = [ "(lang = ? OR lang IS NULL OR lang = '') " => $selectedUserLanguage, "AND (? >= date_start AND ? <= date_end) " => [$now, $now], "AND id = ? " => intval($announcementId) ]; $condition = self::getVisibilityCondition($visibility); $whereConditions[$condition] = 1; if (api_is_multiple_url_enabled()) { $whereConditions["AND access_url_id IN (1, ?) "] = api_get_current_access_url_id(); } $announcement = Database::select( '*', $announcementTable, [ 'where' => $whereConditions, 'order' => 'date_start', ], 'first' ); $template = new Template(null, false, false); $template->assign('announcement', $announcement); $layout = $template->get_template('announcement/view.tpl'); return $template->fetch($layout); } /** * @return bool */ public static function newRolesActivated() { /* In order to use this option you need to run this SQL changes : ALTER TABLE sys_announcement ADD COLUMN visible_drh INT DEFAULT 0; ALTER TABLE sys_announcement ADD COLUMN visible_session_admin INT DEFAULT 0; ALTER TABLE sys_announcement ADD COLUMN visible_boss INT DEFAULT 0; */ return api_get_configuration_value('system_announce_extra_roles'); } /** * @return string */ public static function getCurrentUserVisibility() { if (api_is_anonymous()) { return SystemAnnouncementManager::VISIBLE_GUEST; } if (self::newRolesActivated()) { if (api_is_student_boss()) { return SystemAnnouncementManager::VISIBLE_STUDENT_BOSS; } if (api_is_session_admin()) { return SystemAnnouncementManager::VISIBLE_SESSION_ADMIN; } if (api_is_drh()) { return SystemAnnouncementManager::VISIBLE_DRH; } if (api_is_allowed_to_create_course()) { return SystemAnnouncementManager::VISIBLE_TEACHER; } else { return SystemAnnouncementManager::VISIBLE_STUDENT; } } else { // Default behaviour return api_is_allowed_to_create_course() ? SystemAnnouncementManager::VISIBLE_TEACHER : SystemAnnouncementManager::VISIBLE_STUDENT; } } }