'; 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; } public static function display_all_announcements($visible, $id = -1, $start = 0,$user_id='') { $user_selected_language = api_get_interface_language(); $start = intval($start); $tbl_announcement_group = Database :: get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS_GROUPS); $temp_user_groups = GroupPortalManager::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, GroupPortalManager::get_parent_groups($user_group['id'])); } //checks if tables exists to not break platform not updated $ann_group_db_ok =false; if( Database::num_rows(Database::query("SHOW TABLES LIKE 'announcement_rel_group'")) > 0) $ann_group_db_ok =true; $groups_string = '('.implode($groups,',').')'; $db_table = Database :: get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS); $now = api_get_utc_datetime(); $sql = "SELECT * FROM ".$db_table." WHERE ( lang = '$user_selected_language' OR lang IS NULL) AND ( '$now' >= date_start AND '$now' <= date_end) "; switch ($visible) { case self::VISIBLE_GUEST : $sql .= " AND visible_guest = 1 "; break; case self::VISIBLE_STUDENT : $sql .= " AND visible_student = 1 "; break; case self::VISIBLE_TEACHER : $sql .= " AND visible_teacher = 1 "; break; } if (count($groups) > 0 and $ann_group_db_ok ) { $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) { $query_string = ereg_replace('announcement=[1-9]+', '', $_SERVER['QUERY_STRING']); $query_string = ereg_replace('&$', '', $query_string); $url = api_get_self(); $content .= ''; } return $content; } public static function display_arrow($user_id) { $start = (int)$_GET['start']; $nb_announcement = SystemAnnouncementManager :: count_nb_announcement($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 $content; } public static function count_nb_announcement($start = 0, $user_id = '') { $start = intval($start); $visibility = api_is_allowed_to_create_course() ? self::VISIBLE_TEACHER : self::VISIBLE_STUDENT; $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="'.$user_selected_language.'" OR lang IS NULL) '; if (isset($user_id)) { switch ($visibility) { case self::VISIBLE_GUEST : $sql .= " AND visible_guest = 1 "; break; case self::VISIBLE_STUDENT : $sql .= " AND visible_student = 1 "; break; case self::VISIBLE_TEACHER : $sql .= " AND visible_teacher = 1 "; break; } } global $_configuration; $current_access_url_id = 1; if ($_configuration['multiple_access_urls']) { $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() { $db_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 $db_table"; global $_configuration; $current_access_url_id = 1; if ($_configuration['multiple_access_urls']) { $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"; $announcements = Database::query($sql); $all_announcements = array(); while ($announcement = Database::fetch_object($announcements)) { $all_announcements[] = $announcement; } return $all_announcements; } /** * Adds an announcement to the database * @param string Title of the announcement * @param string Content of the announcement * @param string Start date (YYYY-MM-DD HH:II: SS) * @param string End date (YYYY-MM-DD HH:II: SS) * @param int Whether the announcement should be visible to teachers (1) or not (0) * @param int Whether the announcement should be visible to students (1) or not (0) * @param int Whether the announcement should be visible to anonymous users (1) or not (0) * @param string The language for which the announvement should be shown. Leave null for all langages * @param int Whether to send an e-mail to all users (1) or not (0) * @return mixed insert_id on success, false on failure */ public static function add_announcement($title, $content, $date_start, $date_end, $visible_teacher = 0, $visible_student = 0, $visible_guest = 0, $lang = null, $send_mail = 0, $add_to_calendar = 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], $date_start_to_compare[0])) { Display :: display_normal_message(get_lang('InvalidStartDate')); return false; } if (($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], $date_end_to_compare[0])) { Display :: display_normal_message(get_lang('InvalidEndDate')); return false; } if( strlen(trim($title)) == 0) { Display::display_normal_message(get_lang('InvalidTitle')); return false; } $start = api_get_utc_datetime($date_start); $end = api_get_utc_datetime($date_end); $title = Database::escape_string($title); $content = Database::escape_string($content); //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); $langsql = is_null($lang) ? 'NULL' : "'".Database::escape_string($lang)."'"; global $_configuration; $current_access_url_id = 1; if ($_configuration['multiple_access_urls']) { $current_access_url_id = api_get_current_access_url_id(); } $sql = "INSERT INTO ".$db_table." (title,content,date_start,date_end,visible_teacher,visible_student,visible_guest, lang, access_url_id) VALUES ('".$title."','".$content."','".$start."','".$end."','".$visible_teacher."','".$visible_student."','".$visible_guest."',".$langsql.", ".$current_access_url_id.")"; if ($send_mail==1) { SystemAnnouncementManager::send_system_announcement_by_email($title, $content,$visible_teacher, $visible_student, $lang); } $res = Database::query($sql); if ($res === false) { Debug::log_s(mysql_error()); return false; } if ($add_to_calendar) { require_once 'calendar.lib.php'; $agenda_id = agenda_add_item($title, $original_content, $date_start, $date_end); } return Database::insert_id(); } /** * Makes the announcement id visible only for groups in groups_array * @param int announcement id * @param array array of group id **/ public static function announcement_for_groups($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 ($res === false) { Debug::log_s(mysql_error()); return false; } foreach ($group_array as $group_id) { if (intval($group_id) != 0 ) { $res = Database::query("INSERT into $tbl_announcement_group set announcement_id=".intval($announcement_id) .", group_id=".intval($group_id)); if ($res === false) { Debug::log_s(mysql_error()); 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_MAIN_GROUP); //first delete all group associations for this announcement $res = Database::query("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"); $groups = Database::fetch_array($res); return $groups; } /** * Updates an announcement to the database * @param integer $id : id of the announcement * @param string $title : title of the announcement * @param string $content : content of the announcement * @param array $date_start: start date of announcement (0 => day ; 1 => month ; 2 => year ; 3 => hour ; 4 => minute) * @param array $date_end : end date of announcement (0 => day ; 1 => month ; 2 => year ; 3 => hour ; 4 => minute) * @return bool True on success, false on failure */ public static function update_announcement($id, $title, $content, $date_start, $date_end, $visible_teacher = 0, $visible_student = 0, $visible_guest = 0,$lang=null, $send_mail=0) { $a_dateS = explode(' ',$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); $langsql = is_null($lang) ? 'NULL' : "'".Database::escape_string($lang)."'"; $db_table = Database :: get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS); if (!checkdate($date_start_to_compare[1], $date_start_to_compare[2], $date_start_to_compare[0])) { Display :: display_normal_message(get_lang('InvalidStartDate')); return false; } if (($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], $date_end_to_compare[0])) { Display :: display_normal_message(get_lang('InvalidEndDate')); return false; } if( strlen(trim($title)) == 0) { Display::display_normal_message(get_lang('InvalidTitle')); return false; } $start = api_get_utc_datetime($date_start); $end = api_get_utc_datetime($date_end); $title = Database::escape_string($title); $content = Database::escape_string($content); //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); $id = intval($id); $sql = "UPDATE ".$db_table." SET lang=$langsql,title='".$title."',content='".$content."',date_start='".$start."',date_end='".$end."', "; $sql .= " visible_teacher = '".$visible_teacher."', visible_student = '".$visible_student."', visible_guest = '".$visible_guest."' , access_url_id = '".api_get_current_access_url_id()."' WHERE id = ".$id; if ($send_mail==1) { SystemAnnouncementManager::send_system_announcement_by_email($title, $content,$visible_teacher, $visible_student, $lang); } $res = Database::query($sql); if ($res === false) { Debug::log_s(mysql_error()); return false; } 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) { $db_table = Database :: get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS); $id = intval($id); $sql = "DELETE FROM ".$db_table." WHERE id =".$id; $res = Database::query($sql); if ($res === false) { Debug::log_s(mysql_error()); 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 $announcement_id * @param int $user For who should the visibility be changed (possible values are VISIBLE_TEACHER, VISIBLE_STUDENT, VISIBLE_GUEST) * @return bool True on success, false on failure */ public static function set_visibility($announcement_id, $user, $visible) { $db_table = Database::get_main_table(TABLE_MAIN_SYSTEM_ANNOUNCEMENTS); $visible = intval($visible); $announcement_id = intval($announcement_id); if (!in_array($user, array(self::VISIBLE_GUEST, self::VISIBLE_STUDENT, self::VISIBLE_TEACHER))) { return false; } $field = ($user == self::VISIBLE_TEACHER ? 'visible_teacher' : ($user == self::VISIBLE_STUDENT ? 'visible_student' : 'visible_guest')); $sql = "UPDATE ".$db_table." SET ".$field." = '".$visible."' WHERE id='".$announcement_id."'"; $res = Database::query($sql); if ($res === false) { Debug::log_s(mysql_error()); return false; } return true; } /** * Send a system announcement by e-mail to all teachers/students depending on parameters * @param string Title * @param string Content * @param int Whether to send to all teachers (1) or not (0) * @param int Whether to send to all students (1) or not (0) * @param string Language (optional, considered for all languages if left empty) * @return bool True if the message was sent or there was no destination matching. False on database or e-mail sending error. */ public static function send_system_announcement_by_email($title, $content, $teacher, $student, $language = null) { global $charset; 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 "; } $user_table = Database :: get_main_table(TABLE_MAIN_USER); if ($teacher <> 0 AND $student == 0) { $sql = "SELECT DISTINCT u.user_id FROM $user_table u $url_condition WHERE status = '1' "; } if ($teacher == 0 AND $student <> 0) { $sql = "SELECT DISTINCT u.user_id FROM $user_table u $url_condition WHERE status = '5' "; } if ($teacher<> 0 AND $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 $sql .= " AND email <>'' AND active = 1 "; if ((empty($teacher) or $teacher == '0') AND (empty($student) or $student == '0')) { return true; } $result = Database::query($sql); if ($result === false) { return false; } $title = api_html_entity_decode(stripslashes($title), ENT_QUOTES, $charset); $content = api_html_entity_decode(stripslashes(str_replace(array('\r\n', '\n', '\r'),'', $content)), ENT_QUOTES, $charset); $message_sent = false; while ($row = Database::fetch_array($result,'ASSOC')) { MessageManager::send_message_simple($row['user_id'], $title, $content); $message_sent = true; } return $message_sent; //true if at least one e-mail was sent } /** * Displays announcements as an slideshow * @param int $visible VISIBLE_GUEST, VISIBLE_STUDENT or VISIBLE_TEACHER * @param int $id The identifier of the announcement to display */ public static function display_announcements_slider($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 = '$user_selected_language' OR lang IS NULL) AND ( '$now' >= date_start AND '$now' <= date_end) "; switch ($visible) { case self::VISIBLE_GUEST : $sql .= " AND visible_guest = 1 "; break; case self::VISIBLE_STUDENT : $sql .= " AND visible_student = 1 "; break; case self::VISIBLE_TEACHER : $sql .= " AND visible_teacher = 1 "; break; } if (isset($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"; $announcements = Database::query($sql); $html = ''; if (Database::num_rows($announcements) > 0) { $html .= Display::page_header(get_lang('SystemAnnouncements')); $html .= ''; } return $html; } }