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<?php
{
require_once('../config.php');
require_once($CFG->dirroot.'/message/lib.php');
$id = required_param('id',PARAM_INT);
$messagebody = optional_param('messagebody','',PARAM_CLEANHTML);
$send = optional_param('send','',PARAM_ALPHA);
$returnto = optional_param('returnto','',PARAM_LOCALURL);
$preview = optional_param('preview','',PARAM_ALPHA);
$format = optional_param('format',FORMAT_MOODLE,PARAM_INT);
$edit = optional_param('edit','',PARAM_ALPHA);
$deluser = optional_param('deluser',0,PARAM_INT);
if (!$course = get_record('course','id',$id)) {
error("Invalid course id");
}
if (!isteacher($course->id)) {
error("Only teachers can use this page");
}
if (empty($SESSION->emailto)) {
$SESSION->emailto = array();
}
if (!array_key_exists($id,$SESSION->emailto)) {
$SESSION->emailto[$id] = array();
}
if ($deluser) {
if (array_key_exists($id,$SESSION->emailto) && array_key_exists($deluser,$SESSION->emailto[$id])) {
unset($SESSION->emailto[$id][$deluser]);
}
}
if (empty($SESSION->emailselect[$id]) || $messagebody) {
$SESSION->emailselect[$id] = array('messagebody' => $messagebody);
}
$messagebody = $SESSION->emailselect[$id]['messagebody'];
$count = 0;
foreach ($_POST as $k => $v) {
if (preg_match('/^(user|teacher)(\d+)$/',$k,$m)) {
if (!array_key_exists($m[2],$SESSION->emailto[$id])) {
if ($user = get_record_select('user','id = '.$m[2],'id,firstname,lastname,idnumber,email,emailstop,mailformat,lastaccess')) {
$SESSION->emailto[$id][$m[2]] = $user;
$SESSION->emailto[$id][$m[2]]->teacher = ($m[1] == 'teacher');
$count++;
}
}
}
}
$strtitle = get_string('coursemessage');
if (empty($messagebody)) {
$formstart = "theform.messagebody";
} else {
$formstart = "";
}
print_header($strtitle,$strtitle,"<A HREF=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->shortname</A> -> <a href=\"index.php?id=$course->id\">".get_string("participants")."</a> -> ".$strtitle,$formstart);
if ($count) {
if ($count == 1) {
$heading = get_string('addedrecip','moodle',$count);
} else {
$heading = get_string('addedrecips','moodle',$count);
}
print_heading($heading);
}
if (!empty($messagebody) && !$edit && !$deluser && ($preview || $send)) {
if (count($SESSION->emailto[$id])) {
if ($preview) {
echo '<form method="post" action="messageselect.php" style="margin: 0 20px;">
<input type="hidden" name="returnto" value="'.stripslashes($returnto).'">
<input type="hidden" name="id" value="'.$id.'">
<input type="hidden" name="format" value="'.$format.'">
';
echo "<h3>".get_string('previewhtml')."</h3><div class=\"messagepreview\">\n".format_text(stripslashes($messagebody),$format)."\n</div>";
echo "\n<p align=\"center\"><input type=\"submit\" name=\"send\" value=\"Send\" /> <input type=\"submit\" name=\"edit\" value=\"Edit\" /></p>\n</form>";
} elseif ($send) {
$good = 1;
$teachers = array();
foreach ($SESSION->emailto[$id] as $user) {
$good = $good && message_post_message($USER,$user,$messagebody,$format,'direct');
if ($user->teacher) {
$teachers[] = $user->id;
}
}
if ($good) {
print_heading(get_string('messagedselectedusers'));
unset($SESSION->emailto[$id]);
unset($SESSION->emailselect[$id]);
} else {
print_heading(get_string('messagedselectedusersfailed'));
}
echo '<p align="center"><a href="index.php?id='.$id.'">'.get_string('backtoparticipants').'</a></p>';
}
print_footer();
exit;
} else {
notify(get_string('nousersyet'));
}
}
echo '<p align="center"><a href="'.$returnto.'">'.get_string("keepsearching").'</a>'.((count($SESSION->emailto[$id])) ? ', '.get_string('usemessageform') : '').'</p>';
if ((!empty($send) || !empty($preview) || !empty($edit)) && (empty($messagebody))) {
notify(get_string('allfieldsrequired'));
}
if (count($SESSION->emailto[$id])) {
$usehtmleditor = can_use_richtext_editor();
require("message.html");
if ($usehtmleditor) {
use_html_editor("messagebody");
}
}
print_footer();
}
?>
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