function validation($data, $files)
{
$errors = parent::validation($data, $files);
if ($this->taoresource_entry_mode == 'add') {
// make sure that either the file or the URL are supplied
if (empty($data['url']) && $_FILES['taoresourcefile']['size'] <= 0) {
$errors['url'] = get_string('missingresource', 'taoresource');
}
// if file is uploaded - check that there was no problem
if (empty($data['url']) && $_FILES['taoresourcefile']['error'] != 0) {
// error - physical upload of file failed
$errors['taoresourcefile'] = get_string('fileuploadfailed', 'taoresource');
}
// check that this resource signature does not allready exist
if (!empty($data['url'])) {
$hash = sha1($data['url']);
$result = count_records('taoresource_entry', 'identifier', $hash) + count_records('taoresource_entry', 'url', $data['url']);
if ($result > 0) {
$errors['url'] = get_string('resourceexists', 'taoresource');
}
} else {
$tempfile = $_FILES['taoresourcefile']['tmp_name'];
$hash = taoresource_sha1file($tempfile);
$taoresource_entry->identifier = $hash;
$uri = $hash . '-' . $_FILES['taoresourcefile']['name'];
$result = count_records('taoresource_entry', 'identifier', $hash) + count_records('taoresource_entry', 'url', $uri);
if ($result > 0) {
$errors['taoresourcefile'] = get_string('resourceexists', 'taoresource');
}
}
}
// let the plugins see the form validation
$plugins = taoresource_get_plugins();
foreach ($plugins as $plugin) {
$rc = $plugin->taoresource_entry_validation($data, $files, $errors, $this->taoresource_entry_mode);
if (!$rc) {
break;
}
}
return $errors;
}
// page step 1
if ($pagestep == 1) {
// is this a local resource or a remote one?
if (!empty($taoresource_entry->url)) {
$taoresource_entry->identifier = sha1($taoresource_entry->url);
$taoresource_entry->mimetype = mimeinfo("type", $taoresource_entry->url);
} else {
// if resource uploaded then move to temp area until user has
// completed metadata
if (!taoresource_check_and_create_moddata_temp_dir()) {
error("Error - can't create resources temp dir");
}
$tempfile = $_FILES['taoresourcefile']['tmp_name'];
$taoresource_entry->uploadname = clean_param($_FILES['taoresourcefile']['name'], PARAM_PATH);
$taoresource_entry->mimetype = clean_param($_FILES['taoresourcefile']['type'], PARAM_URL);
if (empty($tempfile) || !($hash = taoresource_sha1file($tempfile))) {
error("Error - can't create hash of incoming resource file");
}
$taoresource_entry->identifier = $hash;
$taoresource_entry->file = $hash . '-' . $taoresource_entry->uploadname;
$taoresource_entry->tempfilename = $CFG->dataroot . TAORESOURCE_TEMPPATH . $taoresource_entry->file;
$formdata->identifier = $taoresource_entry->identifier;
$formdata->file = $taoresource_entry->file;
$formdata->uploadname = $taoresource_entry->uploadname;
$formdata->mimetype = $taoresource_entry->mimetype;
if (!taoresource_copy_file($tempfile, $taoresource_entry->tempfilename, true)) {
error("Error - can't copy upload file to temp");
}
}
} else {
// is this a local resource or a remote one?
