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questiontype.php
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questiontype.php
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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle 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 3 of the License, or
// (at your option) any later version.
//
// Moodle 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.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Question type class for the fileresponse question type.
*
* @package qtype_fileresponse
* @copyright 2012 Luca Bösch [email protected]
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once($CFG->libdir . '/questionlib.php');
/**
* The fileresponse question type.
*
* @copyright 2005 Mark Nielsen
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class qtype_fileresponse extends question_type {
public function is_manual_graded() {
return true;
}
public function response_file_areas() {
return array('attachments', 'answer');
}
public function get_question_options($question) {
global $DB;
$question->options = $DB->get_record('qtype_fileresponse_options',
array('questionid' => $question->id), '*', MUST_EXIST);
parent::get_question_options($question);
}
public function save_question_options($formdata) {
global $DB;
$context = $formdata->context;
$options = $DB->get_record('qtype_fileresponse_options', array('questionid' => $formdata->id));
if (!$options) {
$options = new stdClass();
$options->questionid = $formdata->id;
$options->id = $DB->insert_record('qtype_fileresponse_options', $options);
}
/* Fileresponse only accepts 'plain' as format. */
$options->responseformat = 'plain';
$options->responsefieldlines = $formdata->responsefieldlines;
$options->attachments = $formdata->attachments;
if (isset($formdata->forcedownload)) {
$options->forcedownload = $formdata->forcedownload;
} else {
$options->forcedownload = 0;
}
$options->allowpickerplugins = $formdata->allowpickerplugins;
if (!isset($formdata->filetypeslist)) {
$options->filetypeslist = "";
} else {
$options->filetypeslist = $formdata->filetypeslist;
}
$options->graderinfo = $this->import_or_save_files($formdata->graderinfo,
$context, 'qtype_fileresponse', 'graderinfo', $formdata->id);
$options->graderinfoformat = $formdata->graderinfo['format'];
/* Fileresponse doesn't display a response template. */
$options->responsetemplate = '';
/* Fileresponse doesn't display a response template. */
$options->responsetemplateformat = FORMAT_HTML;
$DB->update_record('qtype_fileresponse_options', $options);
}
protected function initialise_question_instance(question_definition $question, $questiondata) {
parent::initialise_question_instance($question, $questiondata);
/* Fileresponse only accepts 'plain' as format. */
$question->responseformat = 'plain';
$question->responsefieldlines = $questiondata->options->responsefieldlines;
$question->attachments = $questiondata->options->attachments;
$question->forcedownload = $questiondata->options->forcedownload;
$question->allowpickerplugins = $questiondata->options->allowpickerplugins;
$question->graderinfo = $questiondata->options->graderinfo;
$question->graderinfoformat = $questiondata->options->graderinfoformat;
/* Fileresponse doesn't display a response template. */
$question->responsetemplate = '';
/* Fileresponse doesn't display a response template. */
$question->responsetemplateformat = FORMAT_HTML;
$filetypesutil = new \core_form\filetypes_util();
$question->filetypeslist = $filetypesutil->normalize_file_types($questiondata->options->filetypeslist);
}
public function delete_question($questionid, $contextid) {
global $DB;
$DB->delete_records('qtype_fileresponse_options', array('questionid' => $questionid));
parent::delete_question($questionid, $contextid);
}
/**
* @return array the different response formats that the question type supports.
* internal name => human-readable name.
*/
public function response_formats() {
/* Fileresponse only accepts 'plain' as format. */
return array(
'plain' => get_string('formatplain', 'qtype_fileresponse')
);
}
/**
* @return array the choices that should be offered when asking if a response is required
*/
public function response_required_options() {
return array(
1 => get_string('responseisrequired', 'qtype_fileresponse'),
0 => get_string('responsenotrequired', 'qtype_fileresponse'),
);
}
/**
* @return array the choices that should be offered for the input box size.
*/
public function response_sizes() {
$choices = array();
for ($lines = 0; $lines <= 40; $lines += 5) {
if ($lines == 0) {
$choices[$lines] = get_string('noinputbox', 'qtype_fileresponse');
} else {
$choices[$lines] = get_string('nlines', 'qtype_fileresponse', $lines);
}
}
return $choices;
}
/**
* @return array the choices that should be offered for the number of attachments.
*/
public function attachment_options() {
return array(
// Fileresponse has to have at least one file required.
1 => '1',
2 => '2',
3 => '3',
-1 => get_string('unlimited'),
);
}
/**
* @return array the choices that should be offered for the number of required attachments.
*/
public function attachments_required_options() {
return array(
0 => get_string('attachmentsoptional', 'qtype_fileresponse'),
1 => '1',
2 => '2',
3 => '3'
);
}
/**
* @return array the choices that should be offered for the forcedownload.
*/
public function forcedownload_options() {
return array(
0 => get_string('withdownload', 'qtype_fileresponse'),
1 => get_string('withoutdownload', 'qtype_fileresponse'),
);
}
/**
* @return array the choices that should be offered for the allowpickerplugins.
*/
public function allowpickerplugins_options() {
return array(
0 => get_string('allowpickerpluginsno', 'qtype_fileresponse'),
1 => get_string('allowpickerpluginsyes', 'qtype_fileresponse'),
);
}
public function move_files($questionid, $oldcontextid, $newcontextid) {
parent::move_files($questionid, $oldcontextid, $newcontextid);
$fs = get_file_storage();
$fs->move_area_files_to_new_context($oldcontextid,
$newcontextid, 'qtype_fileresponse', 'graderinfo', $questionid);
}
protected function delete_files($questionid, $contextid) {
parent::delete_files($questionid, $contextid);
$fs = get_file_storage();
$fs->delete_area_files($contextid, 'qtype_fileresponse', 'graderinfo', $questionid);
}
/**
* Provide export functionality for xml format.
*
* @param question object the question object
* @param format object the format object so that helper methods can be used
* @param extra mixed any additional format specific data that may be passed by the format (see
* format code for info)
*
* @return string the data to append to the output buffer or false if error
*/
public function export_to_xml($question, qformat_xml $format, $extra = null) {
$expout = '';
$fs = get_file_storage();
$contextid = $question->contextid;
// Set the additional fields.
$expout .= ' <responseformat>' . $question->options->responseformat .
"</responseformat>\n";
$expout .= ' <responsefieldlines>' . $question->options->responsefieldlines .
"</responsefieldlines>\n";
$expout .= ' <attachments>' . $question->options->attachments .
"</attachments>\n";
$expout .= ' <forcedownload>' . $question->options->forcedownload .
"</forcedownload>\n";
$expout .= ' <allowpickerplugins>' . $question->options->allowpickerplugins .
"</allowpickerplugins>\n";
$files = $fs->get_area_files($contextid, 'qtype_fileresponse', 'graderinfo', $question->id);
$expout .= ' <graderinfo format="'.$question->options->graderinfoformat.'">' .
$format->writetext($question->options->graderinfo);
$expout .= $format->write_files($files);
$expout .= "</graderinfo>\n";
$expout .= ' <graderinfoformat>' . $question->options->graderinfoformat .
"</graderinfoformat>\n";
return $expout;
}
/**
* Provide import functionality for xml format.
*
* @param data mixed the segment of data containing the question
* @param question object question object processed (so far) by standard import code
* @param format object the format object so that helper methods can be used (in particular
* error())
* @param extra mixed any additional format specific data that may be passed by the format (see
* format code for info)
*
* @return object question object suitable for save_options() call or false if cannot handle
*/
public function import_from_xml($data, $question, qformat_xml $format, $extra = null) {
// Check whether the question is for us.
if (!isset($data['@']['type']) || $data['@']['type'] != 'fileresponse') {
return false;
}
$question = $format->import_headers($data);
$question->qtype = 'fileresponse';
$question->responseformat = $format->getpath($data,
array('#', 'responseformat', 0, '#', 'text', 0, '#'
), 'plain');
$question->responsefieldlines = $format->getpath($data,
array('#', 'responsefieldlines', 0, '#'
), 0);
$question->attachments = $format->getpath($data,
array('#', 'attachments', 0, '#'
), 0);
$question->forcedownload = $format->getpath($data,
array('#', 'forcedownload', 0, '#'
), 0);
$question->allowpickerplugins = $format->getpath($data,
array('#', 'allowpickerplugins', 0, '#'
), 0);
$question->graderinfo = array();
$question->graderinfo['text'] = $format->getpath($data,
array('#', 'graderinfo', 0, '#', 'text', 0, '#'
), '', true);
$question->graderinfo['format'] = $format->getpath($data,
array('#', 'graderinfo', 0, '@', 'format'), 1);
// Restore files in graderinfo.
$files = $format->getpath($data, array('#', 'graderinfo', 0, '#', 'file'
), array(), false);
foreach ($files as $file) {
$filesdata = new stdclass();
$filesdata->content = $file['#'];
$filesdata->encoding = $file['@']['encoding'];
$filesdata->name = $file['@']['name'];
$question->graderinfo['files'][] = $filesdata;
}
$question->graderinfoformat = $format->getpath($data, array('#', 'graderinfoformat', 0, '#'), 1);
return $question;
}
}