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Basic script to add/delete teachers of courses

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This commit is contained in:
martin
2001-11-29 05:46:15 +00:00
parent 2a46a71bf3
commit dbb24f689d
1 changed files with 99 additions and 57 deletions
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admin/teacher.php
+99 -57
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@@ -12,7 +12,7 @@
require_login();
if (!isadmin()) {
error("You must be an administrator to edit users this way.");
error("You must be an administrator to use this page.");
}
if (!$id) {
@@ -34,75 +34,117 @@
}
/// If data submitted, then process and store.
print_header("Add teachers to $course->shortname", "Add teachers to a course", "<A HREF=\"$CFG->wwwroot/admin\">Admin</A> -> Add teachers to $course->shortname", "");
if (match_referer() && isset($HTTP_POST_VARS)) {
$usernew = (object)$HTTP_POST_VARS;
/// Get all existing teachers for this course.
$teachers = get_records_sql("SELECT u.*,t.authority,t.id as teachid FROM user u, user_teachers t
WHERE t.course = '$course->id'
AND t.user = u.id
ORDER BY t.authority ASC");
if (find_form_errors($user, $usernew, $err) ) {
$user = $usernew;
/// Add a teacher if one is specified
} else {
if ($add) {
if (! $user = get_record("user", "id", $add)) {
error("That teacher (id = $add) doesn't exist", "teacher.php?id=$course->id");
}
$usernew->timemodified = time();
if (update_record("user", $usernew)) {
redirect("index.php", "Changes saved");
} else {
error("Could not update the user record ($user->id)");
foreach ($teachers as $tt) {
if ($tt->id == $user->id) {
error("That user is already a teacher for this course.", "teacher.php?id=$course->id");
}
}
}
$teacher->user = $user->id;
$teacher->course = $course->id;
if ($teachers) {
$teacher->authority = 2;
} else {
$teacher->authority = 1; // First teacher is the main teacher
}
$teacher->id = insert_record("user_teachers", $teacher);
if (! $teacher->id) {
error("Could not add that teacher to this course!");
}
$user->authority = $teacher->authority;
$teachers[] = $user;
}
/// Remove a teacher if one is specified.
if ($remove) {
if (! $user = get_record("user", "id", $remove)) {
error("That teacher (id = $remove) doesn't exist", "teacher.php?id=$course->id");
}
foreach ($teachers as $tt) {
if ($tt->id == $user->id) {
delete_records("user_teachers", "id", "$tt->teachid");
}
}
$teachers = get_records_sql("SELECT u.*,t.authority,t.id as teachid FROM user u, user_teachers t
WHERE t.course = '$course->id'
AND t.user = u.id
ORDER BY t.authority ASC");
}
/// Show existing teachers for this course
if ($teachers) {
print_simple_box_start("center", "", "$THEME->cellheading");
print_heading("Existing teachers");
foreach ($teachers as $teacher) {
echo "<LI>$teacher->firstname $teacher->lastname, $teacher->email &nbsp;&nbsp; <A HREF=\"teacher.php?id=$course->id&remove=$teacher->id\">remove</A>";
}
print_simple_box_end();
}
/// Print list of potential teachers
echo "<BR>";
print_simple_box_start("center", "", "$THEME->cellcontent");
print_heading("Potential teachers");
if ($search) {
$users = get_records_sql("SELECT * from user WHERE confirmed = 1
AND (firstname LIKE '%$search%' OR
lastname LIKE '%$search%' OR
email LIKE '%$search%')");
} else {
$users = get_records("user", "confirmed", "1");
}
/// Otherwise fill and print the form.
foreach ($users as $user) { // Remove users who are already teachers
foreach ($teachers as $teacher) {
if ($teacher->id == $user->id) {
continue 2;
}
}
$potential[] = $user;
}
XXXXXXX
if (! $potential) {
echo "No potential teachers";
print_header("Edit user profile", "Edit user profile", "<A HREF=\"$CFG->wwwroot/admin\">Admin</A> -> Edit user", "");
} else {
if (count($potential) <= 20) {
foreach ($potential as $user) {
echo "<LI>$user->firstname $user->lastname, $user->email &nbsp;&nbsp; <A HREF=\"teacher.php?id=$course->id&add=$user->id\">add</A>";
}
} else {
echo "There are too many users to show.<BR>Enter a search word here.";
echo "<FORM ACTION=teacher.php METHOD=GET>";
echo "<INPUT TYPE=hidden NAME=id VALUE=\"$course->id\">";
echo "<INPUT TYPE=text NAME=search SIZE=20>";
echo "<INPUT TYPE=submit VALUE=Search>";
echo "</FORM>";
}
}
print_simple_box_start("center", "", "$THEME->cellheading");
echo "<H2>User profile for $usernew->firstname $usernew->lastname</H2>";
include("user.html");
print_simple_box_end();
print_footer();
/// FUNCTIONS ////////////////////
function find_form_errors(&$user, &$usernew, &$err) {
if (empty($usernew->email))
$err["email"] = "Missing email address";
else if (! validate_email($usernew->email))
$err["email"] = "Invalid email address, check carefully";
else if ($otheruser = get_record("user", "email", $usernew->email)) {
if ($otheruser->id <> $user->id) {
$err["email"] = "Email address already in use by someone else.";
}
}
$user->email = $usernew->email;
if (empty($user->password) && empty($usernew->password)) {
$err["password"] = "Must have a password";
}
if (empty($usernew->username))
$err["username"] = "Must have a username";
if (empty($usernew->firstname))
$err["firstname"] = "Must enter your first name";
if (empty($usernew->lastname))
$err["lastname"] = "Must enter your last name";
return count($err);
}
?>