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<?php
///////////////////////////////////////////////////////////////////////////
// //
// NOTICE OF COPYRIGHT //
// //
// Moodle - Modular Object-Oriented Dynamic Learning Environment //
// http://moodle.org //
// //
// Copyright (C) 1999-onwards Moodle Pty Ltd http://moodle.com //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation; either version 2 of the License, or //
// (at your option) any later version. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License for more details: //
// //
// http://www.gnu.org/copyleft/gpl.html //
// //
///////////////////////////////////////////////////////////////////////////
class data_field_file extends data_field_base {
var $type = 'file';
function display_add_field($recordid = 0, $formdata = null) {
global $DB, $OUTPUT, $PAGE;
$itemid = null;
// editing an existing database entry
if ($formdata) {
$fieldname = 'field_' . $this->field->id . '_file';
$itemid = clean_param($formdata->$fieldname, PARAM_INT);
} else if ($recordid) {
if (!$content = $DB->get_record('data_content', array('fieldid' => $this->field->id, 'recordid' => $recordid))) {
// Quickly make one now!
$content = new stdClass();
$content->fieldid = $this->field->id;
$content->recordid = $recordid;
$id = $DB->insert_record('data_content', $content);
$content = $DB->get_record('data_content', array('id' => $id));
}
file_prepare_draft_area($itemid, $this->context->id, 'mod_data', 'content', $content->id);
} else {
$itemid = file_get_unused_draft_itemid();
}
// database entry label
$html = '<div title="' . s($this->field->description) . '">';
$html .= '<fieldset><legend><span class="accesshide">'.$this->field->name;
if ($this->field->required) {
$html .= ' ' . get_string('requiredelement', 'form') . '</span></legend>';
$image = $OUTPUT->pix_icon('req', get_string('requiredelement', 'form'));
$html .= html_writer::div($image, 'inline-req');
} else {
$html .= '</span></legend>';
}
// itemid element
$html .= '<input type="hidden" name="field_'.$this->field->id.'_file" value="'.s($itemid).'" />';
$options = new stdClass();
$options->maxbytes = $this->field->param3;
$options->maxfiles = 1; // Limit to one file for the moment, this may be changed if requested as a feature in the future.
$options->itemid = $itemid;
$options->accepted_types = '*';
$options->return_types = FILE_INTERNAL | FILE_CONTROLLED_LINK;
$options->context = $PAGE->context;
$fm = new form_filemanager($options);
// Print out file manager.
$output = $PAGE->get_renderer('core', 'files');
$html .= '<div class="mod-data-input">';
$html .= $output->render($fm);
$html .= '</div>';
$html .= '</fieldset>';
$html .= '</div>';
return $html;
}
function display_search_field($value = '') {
return '<label class="accesshide" for="f_' . $this->field->id . '">' . $this->field->name . '</label>' .
'<input type="text" size="16" id="f_'.$this->field->id.'" name="f_'.$this->field->id.'" ' .
'value="'.s($value).'" class="form-control"/>';
}
function generate_sql($tablealias, $value) {
global $DB;
static $i=0;
$i++;
$name = "df_file_$i";
return array(" ({$tablealias}.fieldid = {$this->field->id} AND ".$DB->sql_like("{$tablealias}.content", ":$name", false).") ", array($name=>"%$value%"));
}
public function parse_search_field($defaults = null) {
$param = 'f_'.$this->field->id;
if (empty($defaults[$param])) {
$defaults = array($param => '');
}
return optional_param($param, $defaults[$param], PARAM_NOTAGS);
}
function 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 $file;
}
function display_browse_field($recordid, $template) {
global $CFG, $DB, $OUTPUT;
if (!$content = $DB->get_record('data_content', array('fieldid'=>$this->field->id, 'recordid'=>$recordid))) {
return '';
}
if (empty($content->content)) {
return '';
}
if (!$file = $this->get_file($recordid, $content)) {
return '';
}
$name = empty($content->content1) ? $file->get_filename() : $content->content1;
$src = file_encode_url($CFG->wwwroot.'/pluginfile.php', '/'.$this->context->id.'/mod_data/content/'.$content->id.'/'.$file->get_filename());
$width = $this->field->param1 ? ' width = "'.s($this->field->param1).'" ':' ';
$height = $this->field->param2 ? ' height = "'.s($this->field->param2).'" ':' ';
$str = $OUTPUT->pix_icon(file_file_icon($file), get_mimetype_description($file), 'moodle', array('width' => 16, 'height' => 16)). ' '.
'<a href="'.$src.'" >'.s($name).'</a>';
return $str;
}
// content: "a##b" where a is the file name, b is the display name
function update_content($recordid, $value, $name='') {
global $CFG, $DB, $USER;
$fs = get_file_storage();
// 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', $content);
}
file_save_draft_area_files($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 {
$content->content = array_values($files)[0]->get_filename();
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} file field (field id: {$this->field->id}) area during update data record {$recordid} (content id: {$content->id})', DEBUG_NORMAL);
}
}
$DB->update_record('data_content', $content);
}
function text_export_supported() {
return false;
}
function file_ok($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;
}
}