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executable file 220 lines (184 sloc) 8.832 kB
<?php // $Id: uploadgroups.php, 2005/10/31 19:09:31
/// Bulk group creation registration script from a comma separated file
require_once('../../../config.php');
require_once($CFG->dirroot.'/course/lib.php');
require_once($CFG->dirroot.'/group/lib.php');
$id = required_param('id', PARAM_INT); // Course id
if (! $course = get_record('course', 'id', $id) ) {
error("That's an invalid course id");
}
require_login($course->id);
$context = get_context_instance(CONTEXT_COURSE, $id);
if (!has_capability('moodle/course:managegroups', $context)) {
error("You do not have the required permissions to manage groups.");
}
//if (!confirm_sesskey()) {
// error(get_string('confirmsesskeybad', 'error'));
//}
$strimportgroups = get_string("importgroups");
$csv_encode = '/\&\#44/';
if (isset($CFG->CSV_DELIMITER)) {
$csv_delimiter = '\\' . $CFG->CSV_DELIMITER;
$csv_delimiter2 = $CFG->CSV_DELIMITER;
if (isset($CFG->CSV_ENCODE)) {
$csv_encode = '/\&\#' . $CFG->CSV_ENCODE . '/';
}
} else {
$csv_delimiter = "\,";
$csv_delimiter2 = ",";
}
/// Print the header
$navlinks = array();
$navlinks[] = array('name' => $course->shortname,
'link' => "$CFG->wwwroot/course/view.php?id=$course->id",
'type' => 'misc');
$navlinks[] = array('name' => get_string('import'),
'link' => "$CFG->wwwroot/course/import.php?id=$course->id",
'type' => 'misc');
$navlinks[] = array('name' => $strimportgroups, 'link' => null, 'type' => 'misc');
$navigation = build_navigation($navlinks);
print_header("$course->shortname: $strimportgroups", $course->fullname, $navigation);
/// If a file has been uploaded, then process it
require_once($CFG->dirroot.'/lib/uploadlib.php');
$um = new upload_manager('userfile',false,false,null,false,0);
if ($um->preprocess_files()) {
$filename = $um->files['userfile']['tmp_name'];
//Fix mac/dos newlines
$text = my_file_get_contents($filename);
$text = preg_replace('!\r\n?!',"\n",$text);
$fp = fopen($filename, "w");
fwrite($fp,$text);
fclose($fp);
$fp = fopen($filename, "r");
// make arrays of valid fields for error checking
$required = array("groupname" => 1, );
$optionalDefaults = array("lang" => 1, );
$optional = array("coursename" => 1,
"idnumber" =>1,
"description" => 1,
"enrolmentkey" => 1,
"theme" => 1,
"picture" => 1,
"hidepicture" => 1, );
// --- get header (field names) ---
$header = split($csv_delimiter, fgets($fp,1024));
// check for valid field names
foreach ($header as $i => $h) {
$h = trim($h); $header[$i] = $h; // remove whitespace
if ( !(isset($required[$h]) or
isset($optionalDefaults[$h]) or
isset($optional[$h])) ) {
error(get_string('invalidfieldname', 'error', $h), 'index.php?id='.$id.'&amp;sesskey='.$USER->sesskey);
}
if ( isset($required[$h]) ) {
$required[$h] = 2;
}
}
// check for required fields
foreach ($required as $key => $value) {
if ($value < 2) {
error(get_string('fieldrequired', 'error', $key), 'uploaduser.php?id='.$id.'&amp;sesskey='.$USER->sesskey);
}
}
$linenum = 2; // since header is line 1
while (!feof ($fp)) {
$newgroup = new object();//to make Martin happy
foreach ($optionalDefaults as $key => $value) {
$newgroup->$key = current_language(); //defaults to current language
}
//Note: commas within a field should be encoded as &#44 (for comma separated csv files)
//Note: semicolon within a field should be encoded as &#59 (for semicolon separated csv files)
$line = split($csv_delimiter, fgets($fp,1024));
foreach ($line as $key => $value) {
//decode encoded commas
$record[$header[$key]] = preg_replace($csv_encode,$csv_delimiter2,trim($value));
}
if ($record[$header[0]]) {
// add a new group to the database
// add fields to object $user
foreach ($record as $name => $value) {
// check for required values
if (isset($required[$name]) and !$value) {
error(get_string('missingfield', 'error', $name). " ".
get_string('erroronline', 'error', $linenum) .". ".
get_string('processingstops', 'error'),
'uploaduser.php?sesskey='.$USER->sesskey);
}
else if ($name == "groupname") {
$newgroup->name = addslashes($value);
}
// normal entry
else {
$newgroup->{$name} = addslashes($value);
}
}
///Find the courseid of the course with the given shortname
//if idnumber is set, we use that.
//unset invalid courseid
if (isset($newgroup->idnumber)){
if (!$mycourse = get_record('course', 'idnumber',$newgroup->idnumber)){
notify(get_string('unknowncourseidnumber', 'error', $newgroup->idnumber));
unset($newgroup->courseid);//unset so 0 doesnt' get written to database
}
$newgroup->courseid = $mycourse->id;
}
//else use course short name to look up
//unset invalid coursename (if no id)
else if (isset($newgroup->coursename)){
if (!$mycourse = get_record('course', 'shortname',$newgroup->coursename)){
notify(get_string('unknowncourse', 'error', $newgroup->coursename));
unset($newgroup->courseid);//unset so 0 doesnt' get written to database
}
$newgroup->courseid = $mycourse->id;
}
//else juse use current id
else{
$newgroup->courseid = $id;
}
//if courseid is set
if (isset($newgroup->courseid)){
$newgroup->courseid = (int)$newgroup->courseid;
$newgroup->timecreated = time();
$linenum++;
$groupname = $newgroup->name;
$newgrpcoursecontext = get_context_instance(CONTEXT_COURSE, $newgroup->courseid);
///Users cannot upload groups in courses they cannot update.
if (!has_capability('moodle/course:managegroups', $newgrpcoursecontext)){
notify(get_string('nopermissionforcreation','group',$groupname));
} else {
if ( $groupid = groups_get_group_by_name($newgroup->courseid, $groupname) || !($newgroup->id = groups_create_group($newgroup)) ) {
//Record not added - probably because group is already registered
//In this case, output groupname from previous registration
if ($groupid) {
notify("$groupname :".get_string('groupexistforcourse', 'error', $groupname));
} else {
notify(get_string('groupnotaddederror', 'error', $groupname));
}
}
else {
notify(get_string('groupaddedsuccesfully', 'group', $groupname));
}
}
} //close courseid validity check
unset ($newgroup);
}//close if ($record[$header[0]])
}//close while($fp)
fclose($fp);
echo '<hr />';
}
/// Print the form
require('mod.php');
print_footer($course);
function my_file_get_contents($filename, $use_include_path = 0) {
/// Returns the file as one big long string
$data = "";
$file = @fopen($filename, "rb", $use_include_path);
if ($file) {
while (!feof($file)) {
$data .= fread($file, 1024);
}
fclose($file);
}
return $data;
}
?>
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