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dialogues.php
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dialogues.php
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<?php // $Id$
/*************************************************
ACTIONS handled are:
closeconversation
confirmclose
getsubject
insertentries
openconversation
printdialogue
showdialogues
updatesubject
************************************************/
require_once("../../config.php");
require_once("lib.php");
require_once("locallib.php");
require_variable($id); // Course Module ID
if (! $cm = get_record("course_modules", "id", $id)) {
error("Course Module ID was incorrect");
}
if (! $course = get_record("course", "id", $cm->course)) {
error("Course is misconfigured");
}
if (! $dialogue = get_record("dialogue", "id", $cm->instance)) {
error("Course module dialogue is incorrect");
}
require_login($course->id);
// set up some general variables
$usehtmleditor = can_use_html_editor();
$strdialogues = get_string("modulenameplural", "dialogue");
$strdialogue = get_string("modulename", "dialogue");
// ... print the header and...
print_header_simple("$dialogue->name", "",
"<a href=\"index.php?id=$course->id\">$strdialogues</a> ->
<a hre=\"view.php?id=$cm->id\">$dialogue->name</a>",
"", "", true);
require_variable($action); // need something to do!
// vet conversation id, if present
if (!empty($_REQUEST['cid'])) {
if ($conversation = get_record("dialogue_conversations", "id", $_REQUEST['cid'])) {
if (($conversation->userid <> $USER->id) and ($conversation->recipientid <> $USER->id)) {
error("Dialogue id incorrect");
}
} else {
error("Dialogue: Conversation record not found");
}
}
/************** close conversation ************************************/
if ($action == 'closeconversation') {
if (empty($_GET['cid'])) {
error("Close dialogue: Missing conversation id");
}
else {
$conversationid = $_GET['cid'];
}
if (!set_field("dialogue_conversations", "closed", 1, "id", $conversationid)) {
error("Close dialogue: unable to set closed");
}
if (!set_field("dialogue_conversations", "lastid", $USER->id, "id", $conversationid)) {
error("Close dialogue: unable to set lastid");
}
$pane=$_GET['pane'];
add_to_log($course->id, "dialogue", "closed", "view.php?id=$cm->id", "$conversationid");
redirect("view.php?id=$cm->id&pane=$pane", get_string("dialogueclosed", "dialogue"));
}
/****************** confirm close ************************************/
elseif ($action == 'confirmclose' ) {
if (empty($_GET['cid'])) {
error("Confirm Close: conversation id missing");
}
if (!$conversation = get_record("dialogue_conversations", "id", $_GET['cid'])) {
error("Confirm close: cannot get conversation record");
}
if ($conversation->userid == $USER->id) {
if (!$user = get_record("user", "id", $conversation->recipientid)) {
error("Confirm Close: cannot get recipient record");
}
}
else {
if (!$user = get_record("user", "id", $conversation->userid)) {
error("Confirm Close: cannot get user record");
}
}
$pane = $_GET['pane'];
notice_yesno(get_string("confirmclosure", "dialogue", fullname($user)),
"dialogues.php?action=closeconversation&id=$cm->id&cid=$conversation->id&pane=$pane",
"view.php?id=$cm->id&pane=$pane");
}
/****************** get subject ************************************/
elseif ($action == 'getsubject' ) {
if (empty($_GET['cid'])) {
error("Confirm Close: conversation id missing");
}
print_heading(get_string("addsubject", "dialogue"));
echo "<form name=\"getsubjectform\" method=\"post\" action=\"dialogues.php\">\n";
echo "<input type=\"hidden\" name=\"action\" value=\"updatesubject\"/>\n";
echo "<input type=\"hidden\" name=\"id\" value=\"".p($_GET[id])."\"/>\n";
echo "<input type=\"hidden\" name=\"cid\" value=\"".p($_GET[cid])."\"/>\n";
echo "<input type=\"hidden\" name=\"pane\" value=\"".p($_GET[pane])."\"/>\n";
echo "<table align=\"center\" border=\"1\" width=\"60%\">\n";
echo "<tr><td align=\"right\"><b>".get_string("subject", "dialogue")."</b></td>";
echo "<td><input type=\"text\" size=\"50\" maxsize=\"100\" name=\"subject\"
value=\"\" /></td></tr>\n";
echo "<tr><td colspan=\"2\" align=\"center\"><input type=\"submit\" value=\"".
get_string("addsubject", "dialogue")."\" /></td></tr>\n";
echo "</table></form>\n";
}
/****************** insert conversation entries ******************************/
elseif ($action == 'insertentries' ) {
$timenow = time();
$n = 0;
// get all the open conversations for this user
if ($conversations = dialogue_get_conversations($dialogue, $USER, "closed = 0")) {
foreach ($conversations as $conversation) {
$textarea_name = "reply$conversation->id";
$stripped_text = '';
if (isset($_POST[$textarea_name])) {
$stripped_text = strip_tags(trim($_POST[$textarea_name]));
}
if ($stripped_text) {
unset($item);
$item->dialogueid = $dialogue->id;
$item->conversationid = $conversation->id;
$item->userid = $USER->id;
$item->timecreated = time();
// reverse the dialogue mail default
$item->mailed = !$dialogue->maildefault;
$item->text = clean_text($_POST[$textarea_name]);
if (!$item->id = insert_record("dialogue_entries", $item)) {
error("Insert Entries: Could not insert dialogue record!");
}
if (!set_field("dialogue_conversations", "lastid", $USER->id, "id", $conversation->id)) {
error("Insert Dialogue Entries: could not set lastid");
}
if (!set_field("dialogue_conversations", "timemodified", $timenow, "id",
$conversation->id)) {
error("Insert Dialogue Entries: could not set lastid");
}
// reset seenon time
if (!set_field("dialogue_conversations", "seenon", 0, "id",
$conversation->id)) {
error("Insert Dialogue Entries: could not reset seenon");
}
add_to_log($course->id, "dialogue", "add entry", "view.php?id=$cm->id", "$item->id");
$n++;
}
}
}
redirect("view.php?id=$cm->id&pane={$_POST['pane']}", get_string("numberofentriesadded",
"dialogue", $n));
}
/****************** list closed conversations *********************************/
elseif ($action == 'listclosed') {
print_simple_box( text_to_html($dialogue->intro) , "center");
echo "<br />";
dialogue_list_closed_conversations($dialogue);
}
/****************** open conversation ************************************/
elseif ($action == 'openconversation' ) {
if (empty($_POST['recipientid'])) {
redirect("view.php?id=$cm->id", get_string("nopersonchosen", "dialogue"));
} else {
$recipientid = $_POST['recipientid'];
if (substr($recipientid, 0, 1) == 'g') { // it's a group
$groupid = intval(substr($recipientid, 1));
if ($groupid) { // it's a real group
$recipients = get_records_sql("SELECT u.*
FROM {$CFG->prefix}user u,
{$CFG->prefix}groups_members g
WHERE g.groupid = $groupid and
u.id = g.userid");
} else { // it's all participants
$recipients = get_course_students($course->id);
}
} else {
$recipients[$recipientid] = get_record("user", "id", $recipientid);
}
if ($recipients) {
$n = 0;
foreach ($recipients as $recipient) {
if ($recipient->id == $USER->id) { // teacher could be member of a group
continue;
}
$stripped_text = strip_tags(trim($_POST['firstentry']));
if (!$stripped_text) {
redirect("view.php?id=$cm->id", get_string("notextentered", "dialogue"));
}
unset($conversation);
$conversation->dialogueid = $dialogue->id;
$conversation->userid = $USER->id;
$conversation->recipientid = $recipient->id;
$conversation->lastid = $USER->id; // this USER is adding an entry too
$conversation->timemodified = time();
$conversation->subject = clean_text($_POST['subject']); // may be blank
if (!$conversation->id = insert_record("dialogue_conversations", $conversation)) {
error("Open dialogue: Could not insert dialogue record!");
}
add_to_log($course->id, "dialogue", "open", "view.php?id=$cm->id", "$dialogue->id");
// now add the entry
unset($entry);
$entry->dialogueid = $dialogue->id;
$entry->conversationid = $conversation->id;
$entry->userid = $USER->id;
$entry->timecreated = time();
// reverse the dialogue default value
$entry->mailed = !$dialogue->maildefault;
$entry->text = clean_text($_POST['firstentry']);
if (!$entry->id = insert_record("dialogue_entries", $entry)) {
error("Insert Entries: Could not insert dialogue record!");
}
add_to_log($course->id, "dialogue", "add entry", "view.php?id=$cm->id", "$entry->id");
$n++;
}
print_heading(get_string("numberofentriesadded", "dialogue", $n));
} else {
redirect("view.php?id=$cm->id", get_string("noavailablepeople", "dialogue"));
}
if (isset($groupid)) {
if ($groupid) { // a real group
if (!$group = get_record("groups", "id", $groupid)) {
error("Dialogue open conversation: Group not found");
}
redirect("view.php?id=$cm->id", get_string("dialogueopened", "dialogue", $group->name));
} else { // all participants
redirect("view.php?id=$cm->id", get_string("dialogueopened", "dialogue",
get_string("allparticipants")));
}
} else {
if (!$user = get_record("user", "id", $conversation->recipientid)) {
error("Open dialogue: user record not found");
}
redirect("view.php?id=$cm->id", get_string("dialogueopened", "dialogue", fullname($user) ));
}
}
}
/****************** print dialogue (allowing new entry)********************/
elseif ($action == 'printdialogue') {
if (!$conversation = get_record("dialogue_conversations", "id", $_GET['cid'])) {
error("Print Dialogue: can not get conversation record");
}
print_simple_box( text_to_html($dialogue->intro) , "center");
echo "<br />";
dialogue_print_conversation($dialogue, $conversation);
}
/****************** show dialogues ****************************************/
elseif ($action == 'showdialogues') {
if (!$conversation = get_record("dialogue_conversations", "id", $_GET['cid'])) {
error("Show Dialogue: can not get conversation record");
}
print_simple_box( text_to_html($dialogue->intro) , "center");
echo "<br />";
dialogue_show_conversation($dialogue, $conversation);
dialogue_show_other_conversations($dialogue, $conversation);
}
/****************** update subject ****************************************/
elseif ($action == 'updatesubject') {
if (!$conversation = get_record("dialogue_conversations", "id", $_POST['cid'])) {
error("Update Subject: can not get conversation record");
}
if (!$_POST['subject']) {
redirect("view.php?id=$cm->id&pane=$_POST[pane]", get_string("nosubject", "dialogue"));
} elseif (!set_field("dialogue_conversations", "subject", clean_text($_POST['subject']), "id", $_POST['cid'])) {
error("Update subject: could not update conversation record");
}
redirect("view.php?id=$cm->id&pane=$_POST[pane]", get_string("subjectadded", "dialogue"));
}
/*************** no man's land **************************************/
else {
error("Fatal Error: Unknown Action: ".$action."\n");
}
print_footer($course);
?>