/question/type/ddimageortext/questiontype.php
PHP | 284 lines | 208 code | 42 blank | 34 comment | 20 complexity | faabc4c1768647ba5f9643334e8c4e38 MD5 | raw file
- <?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 drag-and-drop onto image question type.
- *
- * @package qtype_ddimageortext
- * @copyright 2009 The Open University
- * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
- defined('MOODLE_INTERNAL') || die();
- require_once($CFG->dirroot . '/question/type/ddimageortext/questiontypebase.php');
- define('QTYPE_DDIMAGEORTEXT_BGIMAGE_MAXWIDTH', 600);
- define('QTYPE_DDIMAGEORTEXT_BGIMAGE_MAXHEIGHT', 400);
- define('QTYPE_DDIMAGEORTEXT_DRAGIMAGE_MAXWIDTH', 150);
- define('QTYPE_DDIMAGEORTEXT_DRAGIMAGE_MAXHEIGHT', 100);
- /**
- * The drag-and-drop onto image question type class.
- *
- * @copyright 2009 The Open University
- * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
- class qtype_ddimageortext extends qtype_ddtoimage_base {
- protected function make_choice($dragdata) {
- return new qtype_ddimageortext_drag_item($dragdata->label, $dragdata->no,
- $dragdata->draggroup, $dragdata->infinite, $dragdata->id);
- }
- protected function make_place($dropzonedata) {
- return new qtype_ddimageortext_drop_zone($dropzonedata->label, $dropzonedata->no,
- $dropzonedata->group,
- $dropzonedata->xleft, $dropzonedata->ytop);
- }
- protected function make_hint($hint) {
- return question_hint_with_parts::load_from_record($hint);
- }
- public function save_question_options($formdata) {
- global $DB, $USER;
- $context = $formdata->context;
- $options = $DB->get_record('qtype_ddimageortext', array('questionid' => $formdata->id));
- if (!$options) {
- $options = new stdClass();
- $options->questionid = $formdata->id;
- $options->correctfeedback = '';
- $options->partiallycorrectfeedback = '';
- $options->incorrectfeedback = '';
- $options->id = $DB->insert_record('qtype_ddimageortext', $options);
- }
- $options->shuffleanswers = !empty($formdata->shuffleanswers);
- $options = $this->save_combined_feedback_helper($options, $formdata, $context, true);
- $this->save_hints($formdata, true);
- $DB->update_record('qtype_ddimageortext', $options);
- $DB->delete_records('qtype_ddimageortext_drops', array('questionid' => $formdata->id));
- foreach (array_keys($formdata->drops) as $dropno) {
- if ($formdata->drops[$dropno]['choice'] == 0) {
- continue;
- }
- $drop = new stdClass();
- $drop->questionid = $formdata->id;
- $drop->no = $dropno + 1;
- $drop->xleft = $formdata->drops[$dropno]['xleft'];
- $drop->ytop = $formdata->drops[$dropno]['ytop'];
- $drop->choice = $formdata->drops[$dropno]['choice'];
- $drop->label = $formdata->drops[$dropno]['droplabel'];
- $DB->insert_record('qtype_ddimageortext_drops', $drop);
- }
- // An array of drag no -> drag id.
- $olddragids = $DB->get_records_menu('qtype_ddimageortext_drags',
- array('questionid' => $formdata->id),
- '', 'no, id');
- foreach (array_keys($formdata->drags) as $dragno) {
- $info = file_get_draft_area_info($formdata->dragitem[$dragno]);
- if ($info['filecount'] > 0 || (trim($formdata->draglabel[$dragno]) != '')) {
- $draftitemid = $formdata->dragitem[$dragno];
- $drag = new stdClass();
- $drag->questionid = $formdata->id;
- $drag->no = $dragno + 1;
- $drag->draggroup = $formdata->drags[$dragno]['draggroup'];
- $drag->infinite = empty($formdata->drags[$dragno]['infinite']) ? 0 : 1;
- $drag->label = $formdata->draglabel[$dragno];
- if (isset($olddragids[$dragno + 1])) {
- $drag->id = $olddragids[$dragno + 1];
- unset($olddragids[$dragno + 1]);
- $DB->update_record('qtype_ddimageortext_drags', $drag);
- } else {
- $drag->id = $DB->insert_record('qtype_ddimageortext_drags', $drag);
- }
- if ($formdata->drags[$dragno]['dragitemtype'] == 'image') {
- self::constrain_image_size_in_draft_area($draftitemid,
- QTYPE_DDIMAGEORTEXT_DRAGIMAGE_MAXWIDTH,
- QTYPE_DDIMAGEORTEXT_DRAGIMAGE_MAXHEIGHT);
- file_save_draft_area_files($draftitemid, $formdata->context->id,
- 'qtype_ddimageortext', 'dragimage', $drag->id,
- array('subdirs' => 0, 'maxbytes' => 0, 'maxfiles' => 1));
- } else {
- // Delete any existing files for draggable text item type.
- $fs = get_file_storage();
- $fs->delete_area_files($formdata->context->id, 'qtype_ddimageortext',
- 'dragimage', $drag->id);
- }
- }
- }
- if (!empty($olddragids)) {
- list($sql, $params) = $DB->get_in_or_equal(array_values($olddragids));
- $DB->delete_records_select('qtype_ddimageortext_drags', "id $sql", $params);
- }
- self::constrain_image_size_in_draft_area($formdata->bgimage,
- QTYPE_DDIMAGEORTEXT_BGIMAGE_MAXWIDTH,
- QTYPE_DDIMAGEORTEXT_BGIMAGE_MAXHEIGHT);
- file_save_draft_area_files($formdata->bgimage, $formdata->context->id,
- 'qtype_ddimageortext', 'bgimage', $formdata->id,
- array('subdirs' => 0, 'maxbytes' => 0, 'maxfiles' => 1));
- }
- public function move_files($questionid, $oldcontextid, $newcontextid) {
- global $DB;
- $fs = get_file_storage();
- parent::move_files($questionid, $oldcontextid, $newcontextid);
- $fs->move_area_files_to_new_context($oldcontextid,
- $newcontextid, 'qtype_ddimageortext', 'bgimage', $questionid);
- $dragids = $DB->get_records_menu('qtype_ddimageortext_drags',
- array('questionid' => $questionid), 'id', 'id,1');
- foreach ($dragids as $dragid => $notused) {
- $fs->move_area_files_to_new_context($oldcontextid,
- $newcontextid, 'qtype_ddimageortext', 'dragimage', $dragid);
- }
- $this->move_files_in_combined_feedback($questionid, $oldcontextid, $newcontextid);
- $this->move_files_in_hints($questionid, $oldcontextid, $newcontextid);
- }
- /**
- * Delete all the files belonging to this question.
- * @param int $questionid the question being deleted.
- * @param int $contextid the context the question is in.
- */
- protected function delete_files($questionid, $contextid) {
- global $DB;
- $fs = get_file_storage();
- parent::delete_files($questionid, $contextid);
- $dragids = $DB->get_records_menu('qtype_ddimageortext_drags',
- array('questionid' => $questionid), 'id', 'id,1');
- foreach ($dragids as $dragid => $notused) {
- $fs->delete_area_files($contextid, 'qtype_ddimageortext', 'dragimage', $dragid);
- }
- $this->delete_files_in_combined_feedback($questionid, $contextid);
- $this->delete_files_in_hints($questionid, $contextid);
- }
- public function export_to_xml($question, qformat_xml $format, $extra = null) {
- $fs = get_file_storage();
- $contextid = $question->contextid;
- $output = '';
- if ($question->options->shuffleanswers) {
- $output .= " <shuffleanswers/>\n";
- }
- $output .= $format->write_combined_feedback($question->options,
- $question->id,
- $question->contextid);
- $files = $fs->get_area_files($contextid, 'qtype_ddimageortext', 'bgimage', $question->id);
- $output .= " ".$this->write_files($files, 2)."\n";;
- foreach ($question->options->drags as $drag) {
- $files =
- $fs->get_area_files($contextid, 'qtype_ddimageortext', 'dragimage', $drag->id);
- $output .= " <drag>\n";
- $output .= " <no>{$drag->no}</no>\n";
- $output .= $format->writetext($drag->label, 3)."\n";
- $output .= " <draggroup>{$drag->draggroup}</draggroup>\n";
- if ($drag->infinite) {
- $output .= " <infinite/>\n";
- }
- $output .= $this->write_files($files, 3);
- $output .= " </drag>\n";
- }
- foreach ($question->options->drops as $drop) {
- $output .= " <drop>\n";
- $output .= $format->writetext($drop->label, 3);
- $output .= " <no>{$drop->no}</no>\n";
- $output .= " <choice>{$drop->choice}</choice>\n";
- $output .= " <xleft>{$drop->xleft}</xleft>\n";
- $output .= " <ytop>{$drop->ytop}</ytop>\n";
- $output .= " </drop>\n";
- }
- return $output;
- }
- public function import_from_xml($data, $question, qformat_xml $format, $extra=null) {
- if (!isset($data['@']['type']) || $data['@']['type'] != 'ddimageortext') {
- return false;
- }
- $question = $format->import_headers($data);
- $question->qtype = 'ddimageortext';
- $question->shuffleanswers = array_key_exists('shuffleanswers',
- $format->getpath($data, array('#'), array()));
- $filexml = $format->getpath($data, array('#', 'file'), array());
- $question->bgimage = $format->import_files_as_draft($filexml);
- $drags = $data['#']['drag'];
- $question->drags = array();
- foreach ($drags as $dragxml) {
- $dragno = $format->getpath($dragxml, array('#', 'no', 0, '#'), 0);
- $dragindex = $dragno - 1;
- $question->drags[$dragindex] = array();
- $question->draglabel[$dragindex] =
- $format->getpath($dragxml, array('#', 'text', 0, '#'), '', true);
- $question->drags[$dragindex]['infinite'] = array_key_exists('infinite', $dragxml['#']);
- $question->drags[$dragindex]['draggroup'] =
- $format->getpath($dragxml, array('#', 'draggroup', 0, '#'), 1);
- $filexml = $format->getpath($dragxml, array('#', 'file'), array());
- $question->dragitem[$dragindex] = $format->import_files_as_draft($filexml);
- if (count($filexml)) {
- $question->drags[$dragindex]['dragitemtype'] = 'image';
- } else {
- $question->drags[$dragindex]['dragitemtype'] = 'word';
- }
- }
- $drops = $data['#']['drop'];
- $question->drops = array();
- foreach ($drops as $dropxml) {
- $dropno = $format->getpath($dropxml, array('#', 'no', 0, '#'), 0);
- $dropindex = $dropno - 1;
- $question->drops[$dropindex] = array();
- $question->drops[$dropindex]['choice'] =
- $format->getpath($dropxml, array('#', 'choice', 0, '#'), 0);
- $question->drops[$dropindex]['droplabel'] =
- $format->getpath($dropxml, array('#', 'text', 0, '#'), '', true);
- $question->drops[$dropindex]['xleft'] =
- $format->getpath($dropxml, array('#', 'xleft', 0, '#'), '');
- $question->drops[$dropindex]['ytop'] =
- $format->getpath($dropxml, array('#', 'ytop', 0, '#'), '');
- }
- $format->import_combined_feedback($question, $data, true);
- $format->import_hints($question, $data, true, false,
- $format->get_format($question->questiontextformat));
- return $question;
- }
- }