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

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<?php
/* For licensing terms, see /license.txt */
/**
* @author Frederik Vermeire <frederik.vermeire@pandora.be>, UGent Internship
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University: code cleaning
* @author Julio Montoya <gugli100@gmail.com>, MORE code cleaning 2011
*
* @abstract The task of the internship was to integrate the 'send messages to specific users' with the
* Announcements tool and also add the resource linker here. The database also needed refactoring
* as there was no title field (the title was merged into the content field)
* @package chamilo.announcements
* @todo make AWACS out of the configuration settings
* @todo this file is 1300+ lines without any functions -> needs to be split into
* multiple functions
*/
/*
INIT SECTION
*/
// name of the language file that needs to be included
$language_file = array('announcements', 'group', 'survey');
// use anonymous mode when accessing this course tool
$use_anonymous = true;
// setting the global file that gets the general configuration, the databases, the languages, ...
require_once '../inc/global.inc.php';
$this_section=SECTION_COURSES;
$nameTools = get_lang('ToolAnnouncement');
//session
if(isset($_GET['id_session'])) {
$_SESSION['id_session'] = intval($_GET['id_session']);
}
/* ACCESS RIGHTS */
api_protect_course_script();
// Configuration settings
$display_announcement_list = true;
$display_form = false;
$display_title_list = true;
// Maximum title messages to display
$maximum = '12';
// Length of the titles
$length = '36';
// Database Table Definitions
$tbl_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
$tbl_user = Database::get_main_table(TABLE_MAIN_USER);
$tbl_courses = Database::get_main_table(TABLE_MAIN_COURSE);
$tbl_sessions = Database::get_main_table(TABLE_MAIN_SESSION);
$tbl_session_course_user= Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
$tbl_groupUser = Database::get_course_table(TABLE_GROUP_USER);
$tbl_announcement = Database::get_course_table(TABLE_ANNOUNCEMENT);
$tbl_announcement_attachment = Database::get_course_table(TABLE_ANNOUNCEMENT_ATTACHMENT);
$tbl_item_property = Database::get_course_table(TABLE_ITEM_PROPERTY);
/* Libraries */
$lib = api_get_path(LIBRARY_PATH); //avoid useless function calls
require_once $lib.'groupmanager.lib.php';
require_once $lib.'mail.lib.inc.php';
require_once $lib.'tracking.lib.php';
require_once $lib.'fckeditor/fckeditor.php';
require_once $lib.'fileUpload.lib.php';
require_once 'announcements.inc.php';
$course_id = api_get_course_int_id();
/* Tracking */
event_access_tool(TOOL_ANNOUNCEMENT);
/* POST TO */
$safe_emailTitle = $_POST['emailTitle'];
$safe_newContent = $_POST['newContent'];
$content_to_modify = $title_to_modify = '';
if (!empty($_POST['To'])) {
if (api_get_session_id()!=0 && api_is_allowed_to_session_edit(false,true)==false) {
api_not_allowed();
}
$display_form = true;
$form_elements = array ('emailTitle'=>$safe_emailTitle, 'newContent'=>$safe_newContent, 'id'=>$_POST['id'], 'emailoption'=>$_POST['email_ann']);
$_SESSION['formelements'] = $form_elements;
$form_elements = $_SESSION['formelements'];
$title_to_modify = $form_elements["emailTitle"];
$content_to_modify = $form_elements["newContent"];
$announcement_to_modify = $form_elements["id"];
}
/*
Show/hide user/group form
*/
$setting_select_groupusers = true;
if (empty($_POST['To']) and !$_SESSION['select_groupusers']) {
$_SESSION['select_groupusers'] = "hide";
}
$select_groupusers_status=$_SESSION['select_groupusers'];
if (!empty($_POST['To']) and ($select_groupusers_status=="hide")) {
$_SESSION['select_groupusers'] = "show";
}
if (!empty($_POST['To']) and ($select_groupusers_status=="show")) {
$_SESSION['select_groupusers'] = "hide";
}
/* Action handling */
// display the form
if (((!empty($_GET['action']) && $_GET['action'] == 'add') && $_GET['origin'] == "") || (!empty($_GET['action']) && $_GET['action'] == 'edit') || !empty($_POST['To'])) {
if (api_get_session_id()!=0 && api_is_allowed_to_session_edit(false,true)==false) {
api_not_allowed();
}
$display_form = true;
}
// clear all resources
if ((empty($originalresource) || ($originalresource!=='no')) and (!empty($action) && $action=='add')) {
$_SESSION['formelements']=null;
}
$htmlHeadXtra[] = AnnouncementManager::to_javascript();
$htmlHeadXtra[] = '<script type="text/javascript">
function setFocus(){
$("#emailTitle").focus();
}
$(document).ready(function () {
setFocus();
});
</script>';
/* Filter user/group */
if(!empty($_GET['toolgroup'])){
if($_GET['toolgroup'] == strval(intval($_GET['toolgroup']))){ //check is integer
$toolgroup = $_GET['toolgroup'];
$_SESSION['select_groupusers'] = 'hide';
} else {
$toolgroup = 0;
}
api_session_register("toolgroup");
}
/* Sessions */
$ctok = $_SESSION['sec_token'];
$stok = Security::get_token();
$to = null;
$email_ann = null;
if (!empty($_SESSION['formelements']) and !empty($_GET['originalresource']) and $_GET['originalresource'] == 'no') {
$form_elements = $_SESSION['formelements'];
$title_to_modify = $form_elements['emailTitle'];
$content_to_modify = $form_elements['newContent'];
$announcement_to_modify = $form_elements['id'];
$to = $form_elements['to'];
//load_edit_users('announcement',$announcement_to_modify);
$email_ann = $form_elements['emailoption'];
}
if(!empty($_GET['remind_inactive'])) {
$to[] = 'USER:'.intval($_GET['remind_inactive']);
}
if (!empty($_SESSION['toolgroup'])){
$_clean_toolgroup=intval($_SESSION['toolgroup']);
$group_properties = GroupManager :: get_group_properties($_clean_toolgroup);
$interbreadcrumb[] = array ("url" => "../group/group.php", "name" => get_lang('Groups'));
$interbreadcrumb[] = array ("url"=>"../group/group_space.php?gidReq=".$_clean_toolgroup, "name"=> get_lang('GroupSpace').' '.$group_properties['name']);
}
$announcement_id = intval($_GET['id']);
$message = null;
if (empty($_GET['origin']) or $_GET['origin'] !== 'learnpath') {
//we are not in the learning path
Display::display_header($nameTools,get_lang('Announcements'));
}
if (api_is_allowed_to_edit(false,true) OR (api_get_course_setting('allow_user_edit_announcement') && !api_is_anonymous())) {
/*
Change visibility of announcement
*/
// $_GET['isStudentView']<>"false" is added to prevent that the visibility
// is changed after you do the following:
// change visibility -> studentview -> course manager view
if (!isset($_GET['isStudentView']) || $_GET['isStudentView']!='false') {
if (isset($_GET['id']) AND $_GET['id'] AND isset($_GET['action']) AND $_GET['action']=="showhide") {
if (api_get_session_id()!=0 && api_is_allowed_to_session_edit(false,true)==false) {
api_not_allowed();
}
if (!api_is_course_coach() || api_is_element_in_the_session(TOOL_ANNOUNCEMENT, $_GET['id'])) {
if ($ctok == $_GET['sec_token']) {
AnnouncementManager::change_visibility_announcement($_course, $_GET['id']);
$message = get_lang('VisibilityChanged');
}
}
}
}
/*
Delete announcement
*/
if (!empty($_GET['action']) && $_GET['action']=='delete' && isset($_GET['id'])) {
$id=intval($_GET['id']);
if (api_get_session_id()!=0 && api_is_allowed_to_session_edit(false,true)==false) {
api_not_allowed();
}
if (!api_is_course_coach() || api_is_element_in_the_session(TOOL_ANNOUNCEMENT, $id)) {
// tooledit : visibility = 2 : only visibile for platform administrator
if ($ctok == $_GET['sec_token']) {
AnnouncementManager::delete_announcement($_course, $id);
//delete_added_resource("Ad_Valvas", $delete);
$id = null;
$emailTitle = null;
$newContent = null;
$message = get_lang('AnnouncementDeleted');
}
}
}
//delete attachment file
if (isset($_GET['action']) && $_GET['action'] == 'delete') {
$id = $_GET['id_attach'];
AnnouncementManager::delete_announcement_attachment_file($id);
}
/*
Delete all announcements
*/
if (!empty($_GET['action']) and $_GET['action']=='delete_all') {
if (api_is_allowed_to_edit()) {
AnnouncementManager::delete_all_announcements($_course);
$id = null;
$emailTitle = null;
$newContent = null;
$message = get_lang('AnnouncementDeletedAll');
}
}
/*
Modify announcement
*/
if (!empty($_GET['action']) and $_GET['action']=='modify' AND isset($_GET['id'])) {
if (api_get_session_id()!=0 && api_is_allowed_to_session_edit(false,true)==false) {
api_not_allowed();
}
$display_form = true;
// RETRIEVE THE CONTENT OF THE ANNOUNCEMENT TO MODIFY
$id = intval($_GET['id']);
if (!api_is_course_coach() || api_is_element_in_the_session(TOOL_ANNOUNCEMENT, $id)) {
$sql="SELECT * FROM $tbl_announcement WHERE id = '$id'";
$rs = Database::query($sql);
$myrow = Database::fetch_array($rs);
$last_id = $id;
$edit_attachment = AnnouncementManager::edit_announcement_attachment_file($last_id, $_FILES['user_upload'], $file_comment);
if ($myrow) {
$announcement_to_modify = $myrow['id'];
$content_to_modify = $myrow['content'];
$title_to_modify = $myrow['title'];
if ($originalresource!=="no") {
$to=AnnouncementManager::load_edit_users("announcement", $announcement_to_modify);
}
$display_announcement_list = false;
}
if ($to=="everyone" OR !empty($_SESSION['toolgroup'])) {
$_SESSION['select_groupusers']="hide";
} else {
$_SESSION['select_groupusers']="show";
}
}
}
/*
Move announcement up/down
*/
if (isset($_GET['sec_token']) && $ctok == $_GET['sec_token']) {
if (!empty($_GET['down'])) {
$thisAnnouncementId = intval($_GET['down']);
$sortDirection = "DESC";
}
if (!empty($_GET['up'])) {
$thisAnnouncementId = intval($_GET['up']);
$sortDirection = "ASC";
}
}
if (!empty($sortDirection)) {
if (!in_array(trim(strtoupper($sortDirection)), array('ASC', 'DESC'))) {
$sortDirection='ASC';
}
$my_sql = "SELECT announcement.id, announcement.display_order " .
"FROM $tbl_announcement announcement, " .
"$tbl_item_property itemproperty " .
"WHERE
announcement.c_id = $course_id AND
itemproperty.c_id = $course_id AND
itemproperty.ref=announcement.id " .
"AND itemproperty.tool='".TOOL_ANNOUNCEMENT."' " .
"AND itemproperty.visibility<>2 " .
"ORDER BY display_order $sortDirection";
$result = Database::query($my_sql);
while (list ($announcementId, $announcementOrder) = Database::fetch_row($result)) {
// STEP 2 : FOUND THE NEXT ANNOUNCEMENT ID AND ORDER.
// COMMIT ORDER SWAP ON THE DB
if ($thisAnnouncementOrderFound) {
$nextAnnouncementId = $announcementId;
$nextAnnouncementOrder = $announcementOrder;
Database::query("UPDATE $tbl_announcement SET display_order = '$nextAnnouncementOrder' WHERE id = '$thisAnnouncementId'");
Database::query("UPDATE $tbl_announcement SET display_order = '$thisAnnouncementOrder' WHERE id = '$nextAnnouncementId.'");
break;
}
// STEP 1 : FIND THE ORDER OF THE ANNOUNCEMENT
if ($announcementId == $thisAnnouncementId) {
$thisAnnouncementOrder = $announcementOrder;
$thisAnnouncementOrderFound = true;
}
}
// show message
$message = get_lang('AnnouncementMoved');
}
/*
Submit announcement
*/
//if (api_is_allowed_to_edit(false,true) OR (api_get_course_setting('allow_user_edit_announcement') && !api_is_anonymous())) {
$emailTitle=(!empty($_POST['emailTitle'])?$safe_emailTitle:'');
$newContent=(!empty($_POST['newContent'])?$safe_newContent:'');
$submitAnnouncement=isset($_POST['submitAnnouncement'])?$_POST['submitAnnouncement']:0;
$id = 0;
if (!empty($_POST['id'])) {
$id=intval($_POST['id']);
}
if ($submitAnnouncement && empty($emailTitle)) {
$error_message = get_lang('TitleIsRequired');
$content_to_modify = $newContent;
} else if ($submitAnnouncement) {
if (isset($id) && $id) {
// there is an Id => the announcement already exists => update mode
if ($ctok == $_POST['sec_token']) {
$file_comment = $_POST['file_comment'];
$file = $_FILES['user_upload'];
$edit_id = AnnouncementManager::edit_announcement($id, $emailTitle, $newContent, $_POST['selectedform'], $file, $file_comment);
/*
if (!$delete) {
update_added_resources("Ad_Valvas", $id);
}*/
$message = get_lang('AnnouncementModified');
}
} else {
//insert mode
if ($ctok == $_POST['sec_token']) {
//if (!$surveyid) {
$result = Database::query("SELECT MAX(display_order) FROM $tbl_announcement WHERE session_id=".api_get_session_id()." OR session_id=0");
list($orderMax) = Database::fetch_row($result);
$order = $orderMax + 1;
$file = $_FILES['user_upload'];
$file_comment = $_POST['file_comment'];
if (!empty($_SESSION['toolgroup'])) {
$insert_id = AnnouncementManager::add_group_announcement($safe_emailTitle,$safe_newContent,$order,array('GROUP:'.$_SESSION['toolgroup']),$_POST['selectedform'],$file,$file_comment);
} else {
$insert_id = AnnouncementManager::add_announcement($safe_emailTitle, $safe_newContent, $order, $_POST['selectedform'], $file, $file_comment);
}
//store_resources($_SESSION['source_type'],$insert_id);
$_SESSION['select_groupusers']="hide";
$message = get_lang('AnnouncementAdded');
/* MAIL FUNCTION */
if ($_POST['email_ann'] && empty($_POST['onlyThoseMails'])) {
$sent_to = AnnouncementManager::sent_to("announcement", $insert_id);
$userlist = $sent_to['users'];
$grouplist = $sent_to['groups'];
// groepen omzetten in users
if ($grouplist) {
$grouplist = "'".implode("', '",$grouplist)."'"; //protect individual elements with surrounding quotes
$sql = "SELECT user_id
FROM $tbl_groupUser gu
WHERE c_id = $course_id AND gu.group_id IN (".$grouplist.")";
$groupMemberResult = Database::query($sql);
if ($groupMemberResult) {
while ($u = Database::fetch_array($groupMemberResult)) {
$userlist [] = $u ['user_id']; // complete the user id list ...
}
}
}
if (is_array($userlist)) {
$userlist = "'".implode("', '", array_unique($userlist) )."'";
// send to the created 'userlist'
$sqlmail = "SELECT user_id, lastname, firstname, email
FROM $tbl_user
WHERE user_id IN (".$userlist.")";
} else if (empty($_POST['not_selected_form'])) {
if(empty($_SESSION['id_session']) || api_get_setting('use_session_mode')=='false') {
// send to everybody
$sqlmail = "SELECT user.user_id, user.email, user.lastname, user.firstname
FROM $tbl_course_user, $tbl_user
WHERE course_code='".Database::escape_string($_course['sysCode'])."'
AND course_rel_user.user_id = user.user_id AND relation_type <>".COURSE_RELATION_TYPE_RRHH." ";
} else {
$sqlmail = "SELECT user.user_id, user.email, user.lastname, user.firstname
FROM $tbl_user
INNER JOIN $tbl_session_course_user
ON $tbl_user.user_id = $tbl_session_course_user.id_user
AND $tbl_session_course_user.course_code = '".$_course['id']."'
AND $tbl_session_course_user.id_session = ".api_get_session_id();
}
}
if ($sqlmail != '') {
$rs_mail = Database::query($sqlmail);
/* Send email one by one to avoid antispam */
$db_name = Database::get_course_table(TABLE_MAIN_SURVEY);
while ($myrow = Database::fetch_array($rs_mail)) {
$emailSubject = "[" . $_course['official_code'] . "] " . $emailTitle;
// intro of the email: receiver name and subject
$mail_body = api_get_person_name($myrow["lastname"], $myrow["firstname"], null, PERSON_NAME_EMAIL_ADDRESS)."<br />\n".stripslashes($emailTitle)."<br />";
// Main part of the email
$mail_body .= trim(stripslashes(AnnouncementManager::parse_content($newContent, api_get_course_id())));
// Signature of email: sender name and course URL after -- line
$mail_body .= "<br />-- <br />";
$mail_body .= api_get_person_name($_user['firstName'], $_user['lastName'], null, PERSON_NAME_EMAIL_ADDRESS)." \n";
$mail_body .= "<br /> \n<a href=\"".api_get_path(WEB_CODE_PATH).'announcements/announcements.php?'.api_get_cidreq()."\">";
$mail_body .= $_course['official_code'].' '.$_course['name'] . "</a>";
$recipient_name = api_get_person_name($myrow["firstname"], $myrow["lastname"], null, PERSON_NAME_EMAIL_ADDRESS);
$mailid = $myrow["email"];
$sender_name = api_get_person_name($_SESSION['_user']['firstName'], $_SESSION['_user']['lastName'], null, PERSON_NAME_EMAIL_ADDRESS);
$sender_email = $_SESSION['_user']['mail'];
// send attachment file
$data_file = array();
$sql = 'SELECT path, filename FROM '.$tbl_announcement_attachment.' WHERE announcement_id = "'.$insert_id.'"';
$rs_attach = Database::query($sql);
if (Database::num_rows($rs_attach) > 0) {
$row_attach = Database::fetch_array($rs_attach);
$path_attach = api_get_path(SYS_COURSE_PATH).$_course['path'].'/upload/announcements/'.$row_attach['path'];
$filename_attach = $row_attach['filename'];
$data_file = array('path' => $path_attach,'filename' => $filename_attach);
}
@api_mail_html($recipient_name, $mailid, stripslashes($emailSubject), $mail_body, $sender_name, $sender_email, null, $data_file, true);
//@todo who uses the $table_reminder??
if ($_REQUEST['reminder']=="1") {
$time=getdate();
$time = $time['yday'];
$time = $time+7;
$sql="INSERT INTO $table_reminder(sid,db_name,email,subject,content,reminder_choice,reminder_time,avail_till) values('$surveyid','$db_name','$mailid','".addslashes($emailSubject)."','".addslashes($mail_body)."','1','$time','$end_date')";
Database::query($sql);
} else if ($_REQUEST['reminder']=="2") {
$time=getdate();
$time = $time['yday'];
$time = $time+14;
$sql="INSERT INTO $table_reminder(sid,db_name,email,subject,content,reminder_choice,reminder_time,avail_till) values('$surveyid','$db_name','$mailid','".addslashes($emailSubject)."','".addslashes($mail_body)."','1','$time','$end_date')";
Database::query($sql);
} else if ($_REQUEST['reminder']=="3") {
$time=getdate();
$time = $time['yday'];
$time = $time+30;
$sql="INSERT INTO $table_reminder(sid,db_name,email,subject,content,reminder_choice,reminder_time,avail_till) values('$surveyid','$db_name','$mailid','".addslashes($emailSubject)."','".addslashes($mail_body)."','1','$time','$end_date')";
Database::query($sql);
}
}
AnnouncementManager::update_mail_sent($insert_id);
$message = $added_and_sent;
}
} // $email_ann*/
} // end condition token
} // isset
// UNSET VARIABLES
unset($form_elements);
$_SESSION['formelements']=null;
$newContent = null;
$emailTitle = null;
unset($emailTitle);
unset($newContent);
unset($content_to_modify);
unset($title_to_modify);
} // if $submit Announcement
}
/* Tool introduction */
if (empty($_GET['origin']) || $_GET['origin'] !== 'learnpath') {
Display::display_introduction_section(TOOL_ANNOUNCEMENT);
}
/* DISPLAY LEFT COLUMN */
//condition for the session
$session_id = api_get_session_id();
$condition_session = api_get_session_condition($session_id,true,true);
if(api_is_allowed_to_edit(false,true)) {
// check teacher status
if (empty($_GET['origin']) or $_GET['origin'] !== 'learnpath') {
if (api_get_group_id() == 0) {
$group_condition = "";
} else {
$group_condition = "AND (ip.to_group_id='".api_get_group_id()."' OR ip.to_group_id = 0)";
}
$sql = "SELECT announcement.*, ip.visibility, ip.to_group_id, ip.insert_user_id
FROM $tbl_announcement announcement, $tbl_item_property ip
WHERE
announcement.c_id = $course_id AND
ip.c_id = $course_id AND
announcement.id = ip.ref AND
ip.tool='announcement' AND
ip.visibility<>'2'
$group_condition
$condition_session
GROUP BY ip.ref
ORDER BY display_order DESC
LIMIT 0,$maximum";
}
} else {
// students only get to see the visible announcements
if (empty($_GET['origin']) or $_GET['origin'] !== 'learnpath') {
$group_memberships=GroupManager::get_group_ids($_course['real_id'], $_user['user_id']);
if ((api_get_course_setting('allow_user_edit_announcement') && !api_is_anonymous())) {
if (api_get_group_id() == 0) {
$cond_user_id = " AND (ip.lastedit_user_id = '".api_get_user_id()."' OR ( ip.to_user_id='".$_user['user_id']."'" .
"OR ip.to_group_id IN (0, ".implode(", ", $group_memberships)."))) ";
} else {
$cond_user_id = " AND (ip.lastedit_user_id = '".api_get_user_id()."'
OR ip.to_group_id IN (0, ".api_get_group_id()."))";
}
} else {
if (api_get_group_id() == 0) {
$cond_user_id = " AND ( ip.to_user_id='".$_user['user_id']."'" .
"OR ip.to_group_id IN (0, ".implode(", ", $group_memberships).")) ";
} else {
$cond_user_id = " AND ( ip.to_user_id='".$_user['user_id']."'" .
"OR ip.to_group_id IN (0, ".api_get_group_id().")) ";
}
}
// the user is member of several groups => display personal announcements AND his group announcements AND the general announcements
if (is_array($group_memberships) && count($group_memberships)>0) {
$sql="SELECT announcement.*, ip.visibility, ip.to_group_id, ip.insert_user_id
FROM $tbl_announcement announcement, $tbl_item_property ip
WHERE
announcement.c_id = $course_id AND
ip.c_id = $course_id AND
announcement.id = ip.ref AND
ip.tool='announcement'
AND ip.visibility='1'
$cond_user_id
$condition_session
GROUP BY ip.ref
ORDER BY display_order DESC
LIMIT 0,$maximum";
} else {
// the user is not member of any group
// this is an identified user => show the general announcements AND his personal announcements
if ($_user['user_id']) {
if ((api_get_course_setting('allow_user_edit_announcement') && !api_is_anonymous())) {
$cond_user_id = " AND (ip.lastedit_user_id = '".api_get_user_id()."' OR ( ip.to_user_id='".$_user['user_id']."' OR ip.to_group_id='0')) ";
} else {
$cond_user_id = " AND ( ip.to_user_id='".$_user['user_id']."' OR ip.to_group_id='0') ";
}
$sql="SELECT announcement.*, ip.visibility, ip.to_group_id, ip.insert_user_id
FROM $tbl_announcement announcement, $tbl_item_property ip
WHERE
announcement.c_id = $course_id AND
ip.c_id = $course_id AND
announcement.id = ip.ref
AND ip.tool='announcement'
AND ip.visibility='1'
$cond_user_id
$condition_session
GROUP BY ip.ref
ORDER BY display_order DESC
LIMIT 0,$maximum";
} else {
if (api_get_course_setting('allow_user_edit_announcement')) {
$cond_user_id = " AND (ip.lastedit_user_id = '".api_get_user_id()."' OR ip.to_group_id='0') ";
} else {
$cond_user_id = " AND ip.to_group_id='0' ";
}
// the user is not identiefied => show only the general announcements
$sql="SELECT announcement.*, ip.visibility, ip.to_group_id, ip.insert_user_id
FROM $tbl_announcement announcement, $tbl_item_property ip
WHERE
announcement.c_id = $course_id AND
ip.c_id = $course_id AND
announcement.id = ip.ref
AND ip.tool='announcement'
AND ip.visibility='1'
AND ip.to_group_id='0'
$condition_session
GROUP BY ip.ref
ORDER BY display_order DESC
LIMIT 0,$maximum";
}
}
}
}
$result = Database::query($sql);
$announcement_number = Database::num_rows($result);
/*
ADD ANNOUNCEMENT / DELETE ALL
*/
$show_actions = false;
if ((api_is_allowed_to_edit(false,true) OR (api_get_course_setting('allow_user_edit_announcement') && !api_is_anonymous())) and (empty($_GET['origin']) or $_GET['origin'] !== 'learnpath')) {
echo '<div class="actions">';
if (isset($_GET['action']) && in_array($_GET['action'], array('add', 'modify','view'))) {
echo "<a href='".api_get_self()."?".api_get_cidreq()."&origin=".(empty($_GET['origin'])?'':$_GET['origin'])."'>".Display::return_icon('back.png',get_lang('Back'),'','32')."</a>";
} else {
echo "<a href='".api_get_self()."?".api_get_cidreq()."&action=add&origin=".(empty($_GET['origin'])?'':$_GET['origin'])."'>".Display::return_icon('new_announce.png',get_lang('AddAnnouncement'),'','32')."</a>";
}
$show_actions = true;
} else {
if (in_array($_GET['action'], array('view'))) {
echo '<div class="actions">';
echo "<a href='".api_get_self()."?".api_get_cidreq()."&origin=".(empty($_GET['origin'])?'':$_GET['origin'])."'>".Display::return_icon('back.png',get_lang('Back'),'','32')."</a>";
echo '</div>';
}
}
if (api_is_allowed_to_edit() && $announcement_number > 1) {
if (api_get_group_id() == 0 ) {
if (!$show_actions)
echo '<div class="actions">';
if (!in_array($_GET['action'], array('add', 'modify','view')))
echo "<a href=\"".api_get_self()."?".api_get_cidreq()."&action=delete_all\" onclick=\"javascript:if(!confirm('".get_lang("ConfirmYourChoice")."')) return false;\">".Display::return_icon('delete_announce.png',get_lang('AnnouncementDeleteAll'),'','32')."</a>";
} // if announcementNumber > 1
}
if ($show_actions)
echo '</div>';
// ANNOUNCEMENTS LIST
if ($message) {
Display::display_confirmation_message($message);
$display_announcement_list = true;
$display_form = false;
}
if (!empty($error_message)) {
Display::display_error_message($error_message);
$display_announcement_list = false;
$display_form = true;
}
/*
DISPLAY FORM
*/
if ($display_form) {
$content_to_modify = stripslashes($content_to_modify);
$title_to_modify = stripslashes($title_to_modify);
// DISPLAY ADD ANNOUNCEMENT COMMAND
//echo '<form method="post" name="f1" enctype = "multipart/form-data" action="'.api_get_self().'?publish_survey='.Security::remove_XSS($surveyid).'&id='.Security::remove_XSS($_GET['id']).'&db_name='.$db_name.'&cidReq='.Security::remove_XSS($_GET['cidReq']).'" style="margin:0px;">';
$id = isset($_GET['id']) ? intval($_GET['id']) : 0;
echo '<form method="post" name="f1" enctype = "multipart/form-data" action="'.api_get_self().'?id='.$id.'&'.api_get_cidreq().'" style="margin:0px;">';
if (empty($_GET['id'])) {
$form_name = get_lang('AddAnnouncement');
} else {
$form_name = get_lang('ModifyAnnouncement');
}
echo '<div class="row"><div class="form_header">'.$form_name.'</div></div>';
//this variable defines if the course administrator can send a message to a specific user / group or not
if (empty($_SESSION['toolgroup'])) {
echo ' <div class="row">
<div class="label">'.
Display::return_icon('group.png', get_lang('ModifyRecipientList'), array ('align' => 'absmiddle'),22).'<a href="#" onclick="if(document.getElementById(\'recipient_list\').style.display==\'none\') document.getElementById(\'recipient_list\').style.display=\'block\'; else document.getElementById(\'recipient_list\').style.display=\'none\';">'.get_lang('SentTo').'</a>
</div>
<div class="formw">';
if (isset($_GET['id']) && is_array($to)) {
echo '&nbsp;';
} elseif (isset($_GET['remind_inactive'])) {
$email_ann = '1';
$_SESSION['select_groupusers']="show";
$content_to_modify = sprintf(get_lang('RemindInactiveLearnersMailContent'), api_get_setting('siteName'), 7);
$title_to_modify = sprintf(get_lang('RemindInactiveLearnersMailSubject'), api_get_setting('siteName'));
} elseif (isset($_GET['remindallinactives']) && $_GET['remindallinactives']=='true') {
// we want to remind inactive users. The $_GET['since'] parameter determines which users have to be warned (i.e the users who have been inactive for x days or more
$since = isset($_GET['since']) ? intval($_GET['since']) : 6;
// getting the users who have to be reminded
$to = Tracking :: get_inactives_students_in_course($_course['id'],$since, api_get_session_id());
// setting the variables for the form elements: the users who need to receive the message
foreach($to as &$user) {
$user = 'USER:'.$user;
}
// setting the variables for the form elements: the 'visible to' form element has to be expanded
$_SESSION['select_groupusers']="show";
// setting the variables for the form elements: the message has to be sent by email
$email_ann = '1';
// setting the variables for the form elements: the title of the email
//$title_to_modify = sprintf(get_lang('RemindInactiveLearnersMailSubject'), api_get_setting('siteName'),' > ',$_course['name']);
$title_to_modify = sprintf(get_lang('RemindInactiveLearnersMailSubject'), api_get_setting('siteName'));
// setting the variables for the form elements: the message of the email
//$content_to_modify = sprintf(get_lang('RemindInactiveLearnersMailContent'),api_get_setting('siteName'),' > ',$_course['name'],$since);
$content_to_modify = sprintf(get_lang('RemindInactiveLearnersMailContent'),api_get_setting('siteName'),$since);
// when we want to remind the users who have never been active then we have a different subject and content for the announcement
if ($_GET['since'] == 'never') {
$title_to_modify = sprintf(get_lang('RemindInactiveLearnersMailSubject'), api_get_setting('siteName'));
$content_to_modify = get_lang('YourAccountIsActiveYouCanLoginAndCheckYourCourses');
}
} else {
echo get_lang('Everybody');
}
AnnouncementManager::show_to_form($to);
echo ' </div>
</div>';
if (!isset($announcement_to_modify) ) $announcement_to_modify ='';
if ($announcement_to_modify=='') {
($email_ann=='1')?$checked='checked':$checked='';
echo ' <div class="row">
<div class="label">
</div>
<div class="formw">
<input id="email_ann" class="checkbox" type="checkbox" value="1" name="email_ann" checked>
<label for="email_ann">'.get_lang('EmailOption').'</label>
</div>
</div>';
}
} else {
if (!isset($announcement_to_modify) ) {
$announcement_to_modify ="";
}
if ($announcement_to_modify=='') {
($email_ann=='1' || !empty($surveyid))?$checked='checked':$checked='';
echo '<div class="row">
<div class="label">
<input class="checkbox" type="checkbox" value="1" name="email_ann" '.$checked.'>
</div>
<div class="formw">'.
get_lang('EmailOption').': '.get_lang('MyGroup').'&nbsp;&nbsp;<a href="#" onclick="if(document.getElementById(\'recipient_list\').style.display==\'none\') document.getElementById(\'recipient_list\').style.display=\'block\'; else document.getElementById(\'recipient_list\').style.display=\'none\';">'.get_lang('ModifyRecipientList').'</a>';
AnnouncementManager::show_to_form_group($_SESSION['toolgroup']);
echo '</div></div>';
}
}
// the announcement title
echo ' <div class="row">
<div id="msg_error" style="display:none;color:red;margin-left:20%"></div>
<div class="label">
<span class="form_required">*</span> '.get_lang('EmailTitle').'
</div>
<div class="formw">
<input type="text" id="emailTitle" name="emailTitle" value="'.Security::remove_XSS($title_to_modify).'" size="60">
</div>
</div>';
unset($title_to_modify);
$title_to_modify = null;
if (!isset($announcement_to_modify) ) $announcement_to_modify ="";
if (!isset($content_to_modify) ) $content_to_modify ="";
if (!isset($title_to_modify)) $title_to_modify = "";
echo '<input type="hidden" name="id" value="'.$announcement_to_modify.'" />';
$oFCKeditor = new FCKeditor('newContent') ;
$oFCKeditor->Width = '100%';
$oFCKeditor->Height = '300';
if(!api_is_allowed_to_edit()) {
$oFCKeditor->ToolbarSet = "AnnouncementsStudent";
} else {
$oFCKeditor->ToolbarSet = "Announcements";
}
$oFCKeditor->Value = $content_to_modify;
echo '<div class="row"><div class="formw">';
echo Display::display_normal_message(get_lang('Tags').' <br /><br />'.implode('<br />', AnnouncementManager::get_tags()), false);
echo $oFCKeditor->CreateHtml();
echo '</div></div>';
//File attachment
echo ' <div class="row">
<div class="label">
<a href="javascript://" onclick="return plus_attachment();"><span id="plus"><img style="vertical-align:middle;" src="../img/div_show.gif" alt="" />&nbsp;'.get_lang('AddAnAttachment').'</span></a>
</div>
<div class="formw">
<table id="options" style="display: none;">
<tr>
<td colspan="2">
<label for="file_name">'.get_lang('FileName').'&nbsp;</label>
<input type="file" name="user_upload"/>
</td>
</tr>
<tr>
<td colspan="2">
<label for="comment">'.get_lang('FileComment').'</label><br />
<textarea name="file_comment" rows ="4" cols = "34" ></textarea>
</td>
</tr>
</table>
</div>
</div>';
echo'<br />';
echo '<div class="row"><div class="formw">';
if (empty($_SESSION['toolgroup'])) {
echo '<input type="hidden" name="submitAnnouncement" value="OK">';
echo '<input type="hidden" name="sec_token" value="'.$stok.'" />';
echo '<button class="save" type="button" value="'.' '.get_lang('Send').' '.'" onclick="selectAll(this.form.elements[3],true)" >'.get_lang('ButtonPublishAnnouncement').'</button><br /><br />';
} else {
echo '<input type="hidden" name="submitAnnouncement" value="OK">';
echo '<input type="hidden" name="sec_token" value="'.$stok.'" />';
echo '<button class="save" type="button" value="'.' '.get_lang('Send').' '.'" onclick="selectAll(this.form.elements[4],true)" >'.get_lang('ButtonPublishAnnouncement').'</button><br /><br />';
}
echo '</div></div>';
echo '</form><br />';
if ((isset($_GET['action']) && isset($_GET['id']) && is_array($to))||isset($_GET['remindallinactives'])||isset($_GET['remind_inactive'])) {
echo '<script>document.getElementById(\'recipient_list\').style.display=\'block\';</script>';
}
} // displayform
/*
DISPLAY ANNOUNCEMENT LIST
*/
$course_id = api_get_course_int_id();
//if ($display_announcement_list && !$surveyid) {
if ($display_announcement_list) {
// by default we use the id of the current user. The course administrator can see the announcement of other users by using the user / group filter
//$user_id=$_user['user_id'];
if (isset($_SESSION['user'])) {
//$user_id=$_SESSION['user'];
}
$user_id = api_get_user_id();
if (isset($_SESSION['group'])) {
//$group_id=$_SESSION['group'];
}
$group_id = api_get_group_id();
$group_memberships = GroupManager::get_group_ids($course_id, api_get_user_id());
//$is_group_member = GroupManager :: is_tutor(api_get_user_id());
if (api_is_allowed_to_edit(false,true) OR (api_get_course_setting('allow_user_edit_announcement') && !api_is_anonymous())) {
// A.1. you are a course admin with a USER filter
// => see only the messages of this specific user + the messages of the group (s)he is member of.
if (!empty($_SESSION['user'])) {
if (is_array($group_memberships) && count($group_memberships)>0) {
$sql = "SELECT announcement.*, ip.visibility, ip.to_group_id, ip.insert_user_id, ip.insert_date
FROM $tbl_announcement announcement, $tbl_item_property ip
WHERE announcement.c_id = $course_id AND
ip.c_id = $course_id AND
announcement.id = ip.ref AND
ip.tool = 'announcement' AND
(ip.to_user_id=$user_id OR ip.to_group_id IN (0, ".implode(", ", $group_memberships).") )
$condition_session
ORDER BY display_order DESC";
} else {
$sql = "SELECT announcement.*, ip.visibility, ip.to_group_id, ip.insert_user_id, ip.insert_date
FROM $tbl_announcement announcement, $tbl_item_property ip
WHERE announcement.c_id = $course_id AND
ip.c_id = $course_id AND
announcement.id = ip.ref AND
ip.tool ='announcement' AND
(ip.to_user_id = $user_id OR ip.to_group_id='0') AND
ip.visibility='1'
$condition_session
ORDER BY display_order DESC";
}
} elseif (api_get_group_id() !=0 ) {
// A.2. you are a course admin with a GROUP filter
// => see only the messages of this specific group
$sql="SELECT announcement.*, ip.visibility, ip.to_group_id, ip.insert_user_id, ip.insert_date
FROM $tbl_announcement announcement, $tbl_item_property ip
WHERE announcement.c_id = $course_id AND
ip.c_id = $course_id AND
announcement.id = ip.ref
AND ip.tool='announcement'
AND ip.visibility<>'2'
AND (ip.to_group_id=$group_id OR ip.to_group_id='0')
$condition_session
GROUP BY ip.ref
ORDER BY display_order DESC";
} else {
// A.3 you are a course admin without any group or user filter
// A.3.a you are a course admin without user or group filter but WITH studentview
// => see all the messages of all the users and groups without editing possibilities
if (isset($isStudentView) and $isStudentView=="true") {
$sql="SELECT
announcement.*, ip.visibility, ip.to_group_id, ip.insert_user_id, ip.insert_date
FROM $tbl_announcement announcement, $tbl_item_property ip
WHERE announcement.c_id = $course_id AND
ip.c_id = $course_id AND
announcement.id = ip.ref
AND ip.tool='announcement'
AND ip.visibility='1'
$condition_session
GROUP BY ip.ref
ORDER BY display_order DESC";
} else {
// A.3.a you are a course admin without user or group filter and WTIHOUT studentview (= the normal course admin view)
// => see all the messages of all the users and groups with editing possibilities
$sql="SELECT announcement.*, ip.visibility, ip.to_group_id, ip.insert_user_id, ip.insert_date
FROM $tbl_announcement announcement, $tbl_item_property ip
WHERE announcement.c_id = $course_id AND
ip.c_id = $course_id AND
announcement.id = ip.ref
AND ip.tool='announcement'
AND (ip.visibility='0' or ip.visibility='1')
$condition_session
GROUP BY ip.ref
ORDER BY display_order DESC";
}
}
} else {
//STUDENT
if (is_array($group_memberships) && count($group_memberships)>0) {
if ((api_get_course_setting('allow_user_edit_announcement') && !api_is_anonymous())) {
if (api_get_group_id() == 0) {
//No group
$cond_user_id = " AND (ip.lastedit_user_id = '".api_get_user_id()."' OR ( ip.to_user_id='".$_user['user_id']."'" .
" OR ip.to_group_id IN (0, ".implode(", ", $group_memberships)."))) ";
} else {
$cond_user_id = " AND (ip.lastedit_user_id = '".api_get_user_id()."'
OR ip.to_group_id IN (0, ".api_get_group_id()."))";
}
//$cond_user_id = " AND (ip.lastedit_user_id = '".api_get_user_id()."' OR (ip.to_user_id=$user_id OR ip.to_group_id IN (0, ".implode(", ", $group_memberships).") )) ";
} else {
if (api_get_group_id() == 0) {
$cond_user_id = " AND (ip.to_user_id=$user_id OR ip.to_group_id IN (0, ".implode(", ", $group_memberships).")) ";
} else {
$cond_user_id = " AND (ip.to_user_id=$user_id OR ip.to_group_id IN (0, ".api_get_group_id()."))";
}
}
$sql = "SELECT announcement.*, ip.visibility, ip.to_group_id, ip.insert_user_id, ip.insert_date
FROM $tbl_announcement announcement, $tbl_item_property ip
WHERE announcement.c_id = $course_id AND
ip.c_id = $course_id AND
announcement.id = ip.ref
AND ip.tool='announcement'
$cond_user_id
$condition_session
AND ip.visibility='1'
ORDER BY display_order DESC";
} else {
if ($_user['user_id']) {
if ((api_get_course_setting('allow_user_edit_announcement') && !api_is_anonymous())) {
$cond_user_id = " AND (ip.lastedit_user_id = '".api_get_user_id()."' OR (ip.to_user_id='".$_user['user_id']."' OR ip.to_group_id='0')) ";
} else {
$cond_user_id = " AND (ip.to_user_id='".$_user['user_id']."' OR ip.to_group_id='0') ";
}
$sql = "SELECT announcement.*, ip.visibility, ip.to_group_id, ip.insert_user_id, ip.insert_date
FROM $tbl_announcement announcement, $tbl_item_property ip
WHERE
announcement.c_id = $course_id AND
ip.c_id = $course_id AND
announcement.id = ip.ref AND
ip.tool='announcement'
$cond_user_id
$condition_session
AND ip.visibility='1'
AND announcement.session_id IN(0,".api_get_session_id().")
ORDER BY display_order DESC";
} else {
if ((api_get_course_setting('allow_user_edit_announcement') && !api_is_anonymous())) {
$cond_user_id = " AND (ip.lastedit_user_id = '".api_get_user_id()."' OR ip.to_group_id='0' ) ";
} else {
$cond_user_id = " AND ip.to_group_id='0' ";
}
$sql = "SELECT announcement.*, ip.visibility, ip.to_group_id, ip.insert_user_id, ip.insert_date
FROM $tbl_announcement announcement, $tbl_item_property ip
WHERE
announcement.c_id = $course_id AND
ip.c_id = $course_id AND
announcement.id = ip.ref
AND ip.tool='announcement'
$cond_user_id
$condition_session
AND ip.visibility='1'
AND announcement.session_id IN(0,".api_get_session_id().")";
}
}
}
$result = Database::query($sql);
$num_rows = Database::num_rows($result);
// DISPLAY: NO ITEMS
if (!isset($_GET['action']) || !in_array($_GET['action'], array('add', 'modify','view')))
if ($num_rows == 0) {
Display::display_warning_message(get_lang('NoAnnouncements'));
} else {
$iterator = 1;
$bottomAnnouncement = $announcement_number;
echo '<table width="100%" class="data_table">';
$ths = Display::tag('th', get_lang('Title'));
$ths .= Display::tag('th', get_lang('By') );
$ths .= Display::tag('th', get_lang('LastUpdateDate') );
if (api_is_allowed_to_edit(false,true) OR (api_is_course_coach() && api_is_element_in_the_session(TOOL_ANNOUNCEMENT,$myrow['id']))
OR (api_get_course_setting('allow_user_edit_announcement') && !api_is_anonymous())) {
$ths .= Display::tag('th', get_lang('Modify'));
}
echo Display::tag('tr', $ths);
$displayed = array();
while ($myrow = Database::fetch_array($result, 'ASSOC')) {
if (!in_array($myrow['id'], $displayed)) {
$sent_to_icon = '';
// the email icon
if ($myrow['email_sent'] == '1') {
$sent_to_icon = ' '.Display::return_icon('email.gif', get_lang('AnnounceSentByEmail'));
}
$title = $myrow['title'].$sent_to_icon;
/* DATE */
$last_post_datetime = $myrow['end_date'];
// the styles
if ($myrow['visibility'] == '0') {
$style='invisible';
} else {
$style = '';
}
echo "<tr>";
// show attachment list
$attachment_list = array();
$attachment_list = AnnouncementManager::get_attachment($myrow['id']);
$attachment = '';
$attachment_icon = '';
if (count($attachment_list)>0) {
$attachment_icon = ' '.Display::return_icon('attachment.gif',get_lang('Attachment'));
}
/* TITLE */
$title = Display::url($title.$attachment_icon, '?action=view&id='.$myrow['id']);
echo Display::tag('td', Security::remove_XSS($title), array('class' => $style));
$user_info = api_get_user_info($myrow['insert_user_id']);
echo Display::tag('td', api_get_person_name($user_info['firstName'], $user_info['lastName']).' ('.$user_info['username'].')');
echo Display::tag('td', api_convert_and_format_date($myrow['insert_date'], DATE_TIME_FORMAT_LONG));
// we can edit if : we are the teacher OR the element belongs to the session we are coaching OR the option to allow users to edit is on
$modify_icons = '';
if (api_is_allowed_to_edit(false,true) OR (api_is_course_coach() && api_is_element_in_the_session(TOOL_ANNOUNCEMENT, $myrow['id']))
OR (api_get_course_setting('allow_user_edit_announcement') && !api_is_anonymous())) {
$modify_icons = "<a href=\"".api_get_self()."?".api_get_cidreq()."&action=modify&id=".$myrow['id']."\">".Display::return_icon('edit.png', get_lang('Edit'),'',22)."</a>";
if ($myrow['visibility']==1) {
$image_visibility="visible";
$alt_visibility=get_lang('Hide');
} else {
$image_visibility="invisible";
$alt_visibility=get_lang('Visible');
}
$modify_icons .= "<a href=\"".api_get_self()."?".api_get_cidreq()."&origin=".(!empty($_GET['origin'])?Security::remove_XSS($_GET['origin']):'')."&action=showhide&id=".$myrow['id']."&sec_token=".$stok."\">".
Display::return_icon($image_visibility.'.png', $alt_visibility,'',22)."</a>";
// DISPLAY MOVE UP COMMAND only if it is not the top announcement
if ($iterator != 1) {
$modify_icons .= "<a href=\"".api_get_self()."?".api_get_cidreq()."&up=".$myrow["id"]."&sec_token=".$stok."\">".Display::return_icon('up.gif', get_lang('Up'))."</a>";
} else {
$modify_icons .= Display::return_icon('up_na.gif', get_lang('Up'));
}
if ($iterator < $bottomAnnouncement) {
$modify_icons .= "<a href=\"".api_get_self()."?".api_get_cidreq()."&down=".$myrow["id"]."&sec_token=".$stok."\">".Display::return_icon('down.gif', get_lang('Down'))."</a>";
} else {
$modify_icons .= Display::return_icon('down_na.gif', get_lang('Down'));
}
if (api_is_allowed_to_edit(false,true)) {
$modify_icons .= "<a href=\"".api_get_self()."?".api_get_cidreq()."&action=delete&id=".$myrow['id']."&sec_token=".$stok."\" onclick=\"javascript:if(!confirm('".addslashes(api_htmlentities(get_lang('ConfirmYourChoice'),ENT_QUOTES,$charset))."')) return false;\">".
Display::return_icon('delete.png', get_lang('Delete'),'',22).
"</a>";
}
$iterator ++;
echo Display::tag('td', $modify_icons);
}
echo "</tr>";
}
$displayed[]=$myrow['id'];
} // end while
echo "</table>";
}
} // end: if ($displayAnnoucementList)
if (isset($_GET['action']) && $_GET['action'] == 'view') {
AnnouncementManager::display_announcement($announcement_id);
}
/* FOOTER */
if (empty($_GET['origin']) or $_GET['origin'] !== 'learnpath') {
//we are not in learnpath tool
Display::display_footer();
}