';
return $str;
}
// TODO delete this function and instead subclass data_field_file - see MDL-16493
function get_file($recordid, $content=null) {
global $DB;
if (empty($content)) {
if (!$content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
return null;
}
}
$fs = get_file_storage();
if (!$file = $fs->get_file($this->context->id, 'mod_data', 'content', $content->id, '/', $content->content)) {
return null;
}
return $file;
}
function display_search_field($value = '') {
return '' .
'';
}
public function parse_search_field($defaults = null) {
$param = 'f_'.$this->field->id;
if (empty($defaults[$param])) {
$defaults = array($param => '');
}
return optional_param($param, $defaults[$param], PARAM_NOTAGS);
}
function generate_sql($tablealias, $value) {
global $DB;
static $i=0;
$i++;
$name = "df_picture_$i";
return array(" ({$tablealias}.fieldid = {$this->field->id} AND ".$DB->sql_like("{$tablealias}.content", ":$name", false).") ", array($name=>"%$value%"));
}
function display_browse_field($recordid, $template) {
global $CFG, $DB;
if (!$content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
return false;
}
if (empty($content->content)) {
return '';
}
$alt = $content->content1;
$title = $alt;
if ($template == 'listtemplate') {
$src = file_encode_url($CFG->wwwroot.'/pluginfile.php', '/'.$this->context->id.'/mod_data/content/'.$content->id.'/'.'thumb_'.$content->content);
// no need to add width/height, because the thumb is resized properly
$str = '';
} else {
$src = file_encode_url($CFG->wwwroot.'/pluginfile.php', '/'.$this->context->id.'/mod_data/content/'.$content->id.'/'.$content->content);
$width = $this->field->param1 ? ' width="'.s($this->field->param1).'" ':' ';
$height = $this->field->param2 ? ' height="'.s($this->field->param2).'" ':' ';
$str = '';
}
return $str;
}
function update_field() {
global $DB, $OUTPUT;
// Get the old field data so that we can check whether the thumbnail dimensions have changed
$oldfield = $DB->get_record('data_fields', array('id'=>$this->field->id));
$DB->update_record('data_fields', $this->field);
// Have the thumbnail dimensions changed?
if ($oldfield && ($oldfield->param4 != $this->field->param4 || $oldfield->param5 != $this->field->param5)) {
// Check through all existing records and update the thumbnail
if ($contents = $DB->get_records('data_content', array('fieldid'=>$this->field->id))) {
$fs = get_file_storage();
if (count($contents) > 20) {
echo $OUTPUT->notification(get_string('resizingimages', 'data'), 'notifysuccess');
echo "\n\n";
// To make sure that ob_flush() has the desired effect
ob_flush();
}
foreach ($contents as $content) {
if (!$file = $fs->get_file($this->context->id, 'mod_data', 'content', $content->id, '/', $content->content)) {
continue;
}
if ($thumbfile = $fs->get_file($this->context->id, 'mod_data', 'content', $content->id, '/', 'thumb_'.$content->content)) {
$thumbfile->delete();
}
core_php_time_limit::raise(300);
// Might be slow!
$this->update_thumbnail($content, $file);
}
}
}
return true;
}
function update_content($recordid, $value, $name='') {
global $CFG, $DB, $USER;
// Should always be available since it is set by display_add_field before initializing the draft area.
$content = $DB->get_record('data_content', array('fieldid' => $this->field->id, 'recordid' => $recordid));
if (!$content) {
$content = (object)array('fieldid' => $this->field->id, 'recordid' => $recordid);
$content->id = $DB->insert_record('data_content', $content);
}
$names = explode('_', $name);
switch ($names[2]) {
case 'file':
$fs = get_file_storage();
file_save_draft_area_files($value, $this->context->id, 'mod_data', 'content', $content->id);
$usercontext = context_user::instance($USER->id);
$files = $fs->get_area_files(
$this->context->id,
'mod_data', 'content',
$content->id,
'itemid, filepath, filename',
false);
// We expect no or just one file (maxfiles = 1 option is set for the form_filemanager).
if (count($files) == 0) {
$content->content = null;
} else {
$file = array_values($files)[0];
if (count($files) > 1) {
// This should not happen with a consistent database. Inform admins/developers about the inconsistency.
debugging('more then one file found in mod_data instance {$this->data->id} picture field (field id: {$this->field->id}) area during update data record {$recordid} (content id: {$content->id})', DEBUG_NORMAL);
}
if ($file->get_imageinfo() === false) {
$url = new moodle_url('/mod/data/edit.php', array('d' => $this->field->dataid));
redirect($url, get_string('invalidfiletype', 'error', $file->get_filename()));
}
$content->content = $file->get_filename();
$this->update_thumbnail($content, $file);
}
$DB->update_record('data_content', $content);
break;
case 'alttext':
// only changing alt tag
$content->content1 = clean_param($value, PARAM_NOTAGS);
$DB->update_record('data_content', $content);
break;
default:
break;
}
}
function update_thumbnail($content, $file) {
// (Re)generate thumbnail image according to the dimensions specified in the field settings.
// If thumbnail width and height are BOTH not specified then no thumbnail is generated, and
// additionally an attempted delete of the existing thumbnail takes place.
$fs = get_file_storage();
$file_record = array('contextid'=>$file->get_contextid(), 'component'=>$file->get_component(), 'filearea'=>$file->get_filearea(),
'itemid'=>$file->get_itemid(), 'filepath'=>$file->get_filepath(),
'filename'=>'thumb_'.$file->get_filename(), 'userid'=>$file->get_userid());
try {
// this may fail for various reasons
$fs->convert_image($file_record, $file, $this->field->param4, $this->field->param5, true);
return true;
} catch (Exception $e) {
debugging($e->getMessage());
return false;
}
}
function text_export_supported() {
return false;
}
function file_ok($path) {
return true;
}
/**
* Custom notempty function
*
* @param string $value
* @param string $name
* @return bool
*/
function notemptyfield($value, $name) {
global $USER;
$names = explode('_', $name);
if ($names[2] == 'file') {
$usercontext = context_user::instance($USER->id);
$fs = get_file_storage();
$files = $fs->get_area_files($usercontext->id, 'user', 'draft', $value);
return count($files) >= 2;
}
return false;
}
/**
* Return the plugin configs for external functions.
*
* @return array the list of config parameters
* @since Moodle 3.3
*/
public function get_config_for_external() {
// Return all the config parameters.
$configs = [];
for ($i = 1; $i <= 10; $i++) {
$configs["param$i"] = $this->field->{"param$i"};
}
return $configs;
}
}