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497 lines
21 KiB
497 lines
21 KiB
2 years ago
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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Renderers for outputting parts of the question engine.
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*
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* @package moodlecore
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* @subpackage questionengine
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* @copyright 2009 The Open University
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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/**
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* This renderer controls the overall output of questions. It works with a
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* {@link qbehaviour_renderer} and a {@link qtype_renderer} to output the
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* type-specific bits. The main entry point is the {@link question()} method.
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*
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* @copyright 2009 The Open University
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class core_question_renderer extends plugin_renderer_base {
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public function get_page() {
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return $this->page;
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}
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/**
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* Render an icon, optionally with the word 'Preview' beside it, to preview
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* a given question.
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* @param int $questionid the id of the question to be previewed.
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* @param context $context the context in which the preview is happening.
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* Must be a course or category context.
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* @param bool $showlabel if true, show the word 'Preview' after the icon.
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* If false, just show the icon.
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*/
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public function question_preview_link($questionid, context $context, $showlabel) {
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if ($showlabel) {
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$alt = '';
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$label = get_string('preview');
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$attributes = array();
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} else {
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$alt = get_string('preview');
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$label = '';
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$attributes = array('title' => $alt);
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}
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$image = $this->pix_icon('t/preview', $alt, '', array('class' => 'iconsmall'));
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$link = question_preview_url($questionid, null, null, null, null, $context);
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$action = new popup_action('click', $link, 'questionpreview',
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question_preview_popup_params());
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return $this->action_link($link, $image . $label, $action, $attributes);
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}
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/**
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* Generate the display of a question in a particular state, and with certain
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* display options. Normally you do not call this method directly. Intsead
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* you call {@link question_usage_by_activity::render_question()} which will
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* call this method with appropriate arguments.
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*
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* @param question_attempt $qa the question attempt to display.
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* @param qbehaviour_renderer $behaviouroutput the renderer to output the behaviour
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* specific parts.
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* @param qtype_renderer $qtoutput the renderer to output the question type
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* specific parts.
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* @param question_display_options $options controls what should and should not be displayed.
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* @param string|null $number The question number to display. 'i' is a special
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* value that gets displayed as Information. Null means no number is displayed.
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* @return string HTML representation of the question.
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*/
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public function question(question_attempt $qa, qbehaviour_renderer $behaviouroutput,
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qtype_renderer $qtoutput, question_display_options $options, $number) {
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$output = '';
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$output .= html_writer::start_tag('div', array(
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'id' => $qa->get_outer_question_div_unique_id(),
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'class' => implode(' ', array(
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'que',
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$qa->get_question()->qtype->name(),
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$qa->get_behaviour_name(),
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$qa->get_state_class($options->correctness && $qa->has_marks()),
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))
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));
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$output .= html_writer::tag('div',
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$this->info($qa, $behaviouroutput, $qtoutput, $options, $number),
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array('class' => 'info'));
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$output .= html_writer::start_tag('div', array('class' => 'content'));
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$output .= html_writer::tag('div',
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$this->add_part_heading($qtoutput->formulation_heading(),
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$this->formulation($qa, $behaviouroutput, $qtoutput, $options)),
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array('class' => 'formulation clearfix'));
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$output .= html_writer::nonempty_tag('div',
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$this->add_part_heading(get_string('feedback', 'question'),
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$this->outcome($qa, $behaviouroutput, $qtoutput, $options)),
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array('class' => 'outcome clearfix'));
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$output .= html_writer::nonempty_tag('div',
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$this->add_part_heading(get_string('comments', 'question'),
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$this->manual_comment($qa, $behaviouroutput, $qtoutput, $options)),
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array('class' => 'comment clearfix'));
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$output .= html_writer::nonempty_tag('div',
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$this->response_history($qa, $behaviouroutput, $qtoutput, $options),
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array('class' => 'history clearfix'));
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$output .= html_writer::end_tag('div');
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$output .= html_writer::end_tag('div');
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return $output;
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}
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/**
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* Generate the information bit of the question display that contains the
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* metadata like the question number, current state, and mark.
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* @param question_attempt $qa the question attempt to display.
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* @param qbehaviour_renderer $behaviouroutput the renderer to output the behaviour
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* specific parts.
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* @param qtype_renderer $qtoutput the renderer to output the question type
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* specific parts.
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* @param question_display_options $options controls what should and should not be displayed.
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* @param string|null $number The question number to display. 'i' is a special
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* value that gets displayed as Information. Null means no number is displayed.
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* @return HTML fragment.
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*/
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protected function info(question_attempt $qa, qbehaviour_renderer $behaviouroutput,
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qtype_renderer $qtoutput, question_display_options $options, $number) {
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$output = '';
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$output .= $this->number($number);
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$output .= $this->status($qa, $behaviouroutput, $options);
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$output .= $this->mark_summary($qa, $behaviouroutput, $options);
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$output .= $this->question_flag($qa, $options->flags);
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$output .= $this->edit_question_link($qa, $options);
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return $output;
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}
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/**
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* Generate the display of the question number.
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* @param string|null $number The question number to display. 'i' is a special
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* value that gets displayed as Information. Null means no number is displayed.
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* @return HTML fragment.
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*/
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protected function number($number) {
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if (trim($number) === '') {
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return '';
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}
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$numbertext = '';
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if (trim($number) === 'i') {
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$numbertext = get_string('information', 'question');
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} else {
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$numbertext = get_string('questionx', 'question',
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html_writer::tag('span', $number, array('class' => 'qno')));
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}
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return html_writer::tag('h3', $numbertext, array('class' => 'no'));
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}
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/**
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* Add an invisible heading like 'question text', 'feebdack' at the top of
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* a section's contents, but only if the section has some content.
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* @param string $heading the heading to add.
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* @param string $content the content of the section.
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* @return string HTML fragment with the heading added.
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*/
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protected function add_part_heading($heading, $content) {
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if ($content) {
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$content = html_writer::tag('h4', $heading, array('class' => 'accesshide')) . $content;
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}
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return $content;
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}
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/**
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* Generate the display of the status line that gives the current state of
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* the question.
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* @param question_attempt $qa the question attempt to display.
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* @param qbehaviour_renderer $behaviouroutput the renderer to output the behaviour
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* specific parts.
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* @param question_display_options $options controls what should and should not be displayed.
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* @return HTML fragment.
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*/
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protected function status(question_attempt $qa, qbehaviour_renderer $behaviouroutput,
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question_display_options $options) {
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return html_writer::tag('div', $qa->get_state_string($options->correctness),
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array('class' => 'state'));
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}
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/**
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* Generate the display of the marks for this question.
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* @param question_attempt $qa the question attempt to display.
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* @param qbehaviour_renderer $behaviouroutput the behaviour renderer, which can generate a custom display.
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* @param question_display_options $options controls what should and should not be displayed.
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* @return HTML fragment.
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*/
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protected function mark_summary(question_attempt $qa, qbehaviour_renderer $behaviouroutput, question_display_options $options) {
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return html_writer::nonempty_tag('div',
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$behaviouroutput->mark_summary($qa, $this, $options),
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array('class' => 'grade'));
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}
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/**
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* Generate the display of the marks for this question.
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* @param question_attempt $qa the question attempt to display.
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* @param question_display_options $options controls what should and should not be displayed.
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* @return HTML fragment.
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*/
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public function standard_mark_summary(question_attempt $qa, qbehaviour_renderer $behaviouroutput, question_display_options $options) {
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if (!$options->marks) {
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return '';
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} else if ($qa->get_max_mark() == 0) {
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return get_string('notgraded', 'question');
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} else if ($options->marks == question_display_options::MAX_ONLY ||
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is_null($qa->get_fraction())) {
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return $behaviouroutput->marked_out_of_max($qa, $this, $options);
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} else {
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return $behaviouroutput->mark_out_of_max($qa, $this, $options);
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}
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}
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/**
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* Generate the display of the available marks for this question.
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* @param question_attempt $qa the question attempt to display.
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* @param question_display_options $options controls what should and should not be displayed.
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* @return HTML fragment.
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*/
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public function standard_marked_out_of_max(question_attempt $qa, question_display_options $options) {
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return get_string('markedoutofmax', 'question', $qa->format_max_mark($options->markdp));
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}
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/**
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* Generate the display of the marks for this question out of the available marks.
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* @param question_attempt $qa the question attempt to display.
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* @param question_display_options $options controls what should and should not be displayed.
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* @return HTML fragment.
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*/
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public function standard_mark_out_of_max(question_attempt $qa, question_display_options $options) {
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$a = new stdClass();
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$a->mark = $qa->format_mark($options->markdp);
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$a->max = $qa->format_max_mark($options->markdp);
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return get_string('markoutofmax', 'question', $a);
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}
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/**
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* Render the question flag, assuming $flagsoption allows it.
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*
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* @param question_attempt $qa the question attempt to display.
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* @param int $flagsoption the option that says whether flags should be displayed.
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*/
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protected function question_flag(question_attempt $qa, $flagsoption) {
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global $CFG;
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$divattributes = array('class' => 'questionflag');
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switch ($flagsoption) {
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case question_display_options::VISIBLE:
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$flagcontent = $this->get_flag_html($qa->is_flagged());
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break;
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case question_display_options::EDITABLE:
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$id = $qa->get_flag_field_name();
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// The checkbox id must be different from any element name, because
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// of a stupid IE bug:
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// http://www.456bereastreet.com/archive/200802/beware_of_id_and_name_attribute_mixups_when_using_getelementbyid_in_internet_explorer/
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$checkboxattributes = array(
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'type' => 'checkbox',
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'id' => $id . 'checkbox',
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'name' => $id,
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'value' => 1,
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);
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if ($qa->is_flagged()) {
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$checkboxattributes['checked'] = 'checked';
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}
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$postdata = question_flags::get_postdata($qa);
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$flagcontent = html_writer::empty_tag('input',
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array('type' => 'hidden', 'name' => $id, 'value' => 0)) .
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html_writer::empty_tag('input', $checkboxattributes) .
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html_writer::empty_tag('input',
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array('type' => 'hidden', 'value' => $postdata, 'class' => 'questionflagpostdata')) .
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html_writer::tag('label', $this->get_flag_html($qa->is_flagged(), $id . 'img'),
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array('id' => $id . 'label', 'for' => $id . 'checkbox')) . "\n";
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$divattributes = array(
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'class' => 'questionflag editable',
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'aria-atomic' => 'true',
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'aria-relevant' => 'text',
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'aria-live' => 'assertive',
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);
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break;
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default:
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$flagcontent = '';
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}
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return html_writer::nonempty_tag('div', $flagcontent, $divattributes);
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}
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/**
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* Work out the actual img tag needed for the flag
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*
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* @param bool $flagged whether the question is currently flagged.
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* @param string $id an id to be added as an attribute to the img (optional).
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* @return string the img tag.
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*/
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protected function get_flag_html($flagged, $id = '') {
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if ($flagged) {
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$icon = 'i/flagged';
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$alt = get_string('flagged', 'question');
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} else {
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$icon = 'i/unflagged';
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$alt = get_string('notflagged', 'question');
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}
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$attributes = array(
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'src' => $this->image_url($icon),
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'alt' => $alt,
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);
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if ($id) {
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$attributes['id'] = $id;
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}
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$img = html_writer::empty_tag('img', $attributes);
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if ($flagged) {
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$img .= ' ' . get_string('flagged', 'question');
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}
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return $img;
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}
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protected function edit_question_link(question_attempt $qa,
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question_display_options $options) {
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global $CFG;
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if (empty($options->editquestionparams)) {
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
|
||
|
|
$params = $options->editquestionparams;
|
||
|
|
if ($params['returnurl'] instanceof moodle_url) {
|
||
|
|
$params['returnurl'] = $params['returnurl']->out_as_local_url(false);
|
||
|
|
}
|
||
|
|
$params['id'] = $qa->get_question()->id;
|
||
|
|
$editurl = new moodle_url('/question/question.php', $params);
|
||
|
|
|
||
|
|
return html_writer::tag('div', html_writer::link(
|
||
|
|
$editurl, $this->pix_icon('t/edit', get_string('edit'), '', array('class' => 'iconsmall')) .
|
||
|
|
get_string('editquestion', 'question')),
|
||
|
|
array('class' => 'editquestion'));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Generate the display of the formulation part of the question. This is the
|
||
|
|
* area that contains the quetsion text, and the controls for students to
|
||
|
|
* input their answers. Some question types also embed feedback, for
|
||
|
|
* example ticks and crosses, in this area.
|
||
|
|
*
|
||
|
|
* @param question_attempt $qa the question attempt to display.
|
||
|
|
* @param qbehaviour_renderer $behaviouroutput the renderer to output the behaviour
|
||
|
|
* specific parts.
|
||
|
|
* @param qtype_renderer $qtoutput the renderer to output the question type
|
||
|
|
* specific parts.
|
||
|
|
* @param question_display_options $options controls what should and should not be displayed.
|
||
|
|
* @return HTML fragment.
|
||
|
|
*/
|
||
|
|
protected function formulation(question_attempt $qa, qbehaviour_renderer $behaviouroutput,
|
||
|
|
qtype_renderer $qtoutput, question_display_options $options) {
|
||
|
|
$output = '';
|
||
|
|
$output .= html_writer::empty_tag('input', array(
|
||
|
|
'type' => 'hidden',
|
||
|
|
'name' => $qa->get_control_field_name('sequencecheck'),
|
||
|
|
'value' => $qa->get_sequence_check_count()));
|
||
|
|
$output .= $qtoutput->formulation_and_controls($qa, $options);
|
||
|
|
if ($options->clearwrong) {
|
||
|
|
$output .= $qtoutput->clear_wrong($qa);
|
||
|
|
}
|
||
|
|
$output .= html_writer::nonempty_tag('div',
|
||
|
|
$behaviouroutput->controls($qa, $options), array('class' => 'im-controls'));
|
||
|
|
return $output;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Generate the display of the outcome part of the question. This is the
|
||
|
|
* area that contains the various forms of feedback.
|
||
|
|
*
|
||
|
|
* @param question_attempt $qa the question attempt to display.
|
||
|
|
* @param qbehaviour_renderer $behaviouroutput the renderer to output the behaviour
|
||
|
|
* specific parts.
|
||
|
|
* @param qtype_renderer $qtoutput the renderer to output the question type
|
||
|
|
* specific parts.
|
||
|
|
* @param question_display_options $options controls what should and should not be displayed.
|
||
|
|
* @return HTML fragment.
|
||
|
|
*/
|
||
|
|
protected function outcome(question_attempt $qa, qbehaviour_renderer $behaviouroutput,
|
||
|
|
qtype_renderer $qtoutput, question_display_options $options) {
|
||
|
|
$output = '';
|
||
|
|
$output .= html_writer::nonempty_tag('div',
|
||
|
|
$qtoutput->feedback($qa, $options), array('class' => 'feedback'));
|
||
|
|
$output .= html_writer::nonempty_tag('div',
|
||
|
|
$behaviouroutput->feedback($qa, $options), array('class' => 'im-feedback'));
|
||
|
|
$output .= html_writer::nonempty_tag('div',
|
||
|
|
$options->extrainfocontent, array('class' => 'extra-feedback'));
|
||
|
|
return $output;
|
||
|
|
}
|
||
|
|
|
||
|
|
protected function manual_comment(question_attempt $qa, qbehaviour_renderer $behaviouroutput,
|
||
|
|
qtype_renderer $qtoutput, question_display_options $options) {
|
||
|
|
return $qtoutput->manual_comment($qa, $options) .
|
||
|
|
$behaviouroutput->manual_comment($qa, $options);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Generate the display of the response history part of the question. This
|
||
|
|
* is the table showing all the steps the question has been through.
|
||
|
|
*
|
||
|
|
* @param question_attempt $qa the question attempt to display.
|
||
|
|
* @param qbehaviour_renderer $behaviouroutput the renderer to output the behaviour
|
||
|
|
* specific parts.
|
||
|
|
* @param qtype_renderer $qtoutput the renderer to output the question type
|
||
|
|
* specific parts.
|
||
|
|
* @param question_display_options $options controls what should and should not be displayed.
|
||
|
|
* @return HTML fragment.
|
||
|
|
*/
|
||
|
|
protected function response_history(question_attempt $qa, qbehaviour_renderer $behaviouroutput,
|
||
|
|
qtype_renderer $qtoutput, question_display_options $options) {
|
||
|
|
|
||
|
|
if (!$options->history) {
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
|
||
|
|
$table = new html_table();
|
||
|
|
$table->head = array (
|
||
|
|
get_string('step', 'question'),
|
||
|
|
get_string('time'),
|
||
|
|
get_string('action', 'question'),
|
||
|
|
get_string('state', 'question'),
|
||
|
|
);
|
||
|
|
if ($options->marks >= question_display_options::MARK_AND_MAX) {
|
||
|
|
$table->head[] = get_string('marks', 'question');
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach ($qa->get_full_step_iterator() as $i => $step) {
|
||
|
|
$stepno = $i + 1;
|
||
|
|
|
||
|
|
$rowclass = '';
|
||
|
|
if ($stepno == $qa->get_num_steps()) {
|
||
|
|
$rowclass = 'current';
|
||
|
|
} else if (!empty($options->questionreviewlink)) {
|
||
|
|
$url = new moodle_url($options->questionreviewlink,
|
||
|
|
array('slot' => $qa->get_slot(), 'step' => $i));
|
||
|
|
$stepno = $this->output->action_link($url, $stepno,
|
||
|
|
new popup_action('click', $url, 'reviewquestion',
|
||
|
|
array('width' => 450, 'height' => 650)),
|
||
|
|
array('title' => get_string('reviewresponse', 'question')));
|
||
|
|
}
|
||
|
|
|
||
|
|
$restrictedqa = new question_attempt_with_restricted_history($qa, $i, null);
|
||
|
|
|
||
|
|
$user = new stdClass();
|
||
|
|
$user->id = $step->get_user_id();
|
||
|
|
$row = array(
|
||
|
|
$stepno,
|
||
|
|
userdate($step->get_timecreated(), get_string('strftimedatetimeshort')),
|
||
|
|
s($qa->summarise_action($step)),
|
||
|
|
$restrictedqa->get_state_string($options->correctness),
|
||
|
|
);
|
||
|
|
|
||
|
|
if ($options->marks >= question_display_options::MARK_AND_MAX) {
|
||
|
|
$row[] = $qa->format_fraction_as_mark($step->get_fraction(), $options->markdp);
|
||
|
|
}
|
||
|
|
|
||
|
|
$table->rowclasses[] = $rowclass;
|
||
|
|
$table->data[] = $row;
|
||
|
|
}
|
||
|
|
|
||
|
|
return html_writer::tag('h4', get_string('responsehistory', 'question'),
|
||
|
|
array('class' => 'responsehistoryheader')) .
|
||
|
|
$options->extrahistorycontent .
|
||
|
|
html_writer::tag('div', html_writer::table($table, true),
|
||
|
|
array('class' => 'responsehistoryheader'));
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|