PHP question_usage_by_activity::get_slots方法代码示例

//.........这里部分代码省略.........
                                $pdf->AddPage();
                                $pdf->Ln(14);
                                $pdf->writeHTMLCell(165, round($offlinequiz->fontsize / 2), $pdf->GetX(), $pdf->GetY(), $sentence);
                                $pdf->Ln();
                            }
                        }
                    }
                }
            }
        }
        $pdf->AddPage();
        $pdf->Ln(2);
    }
    $pdf->SetMargins(15, 15, 15);
    // Load all the questions needed for this offline quiz group.
    $sql = "SELECT q.*, c.contextid, ogq.page, ogq.slot, ogq.maxmark \n              FROM {offlinequiz_group_questions} ogq,\n                   {question} q,\n                   {question_categories} c\n             WHERE ogq.offlinequizid = :offlinequizid\n               AND ogq.offlinegroupid = :offlinegroupid\n               AND q.id = ogq.questionid\n               AND q.category = c.id\n          ORDER BY ogq.slot ASC ";
    $params = array('offlinequizid' => $offlinequiz->id, 'offlinegroupid' => $group->id);
    // Load the questions.
    $questions = $DB->get_records_sql($sql, $params);
    if (!$questions) {
        echo $OUTPUT->box_start();
        echo $OUTPUT->error_text(get_string('noquestionsfound', 'offlinequiz', $groupletter));
        echo $OUTPUT->box_end();
        return;
    }
    // Load the question type specific information.
    if (!get_question_options($questions)) {
        print_error('Could not load question options');
    }
    // Restore the question sessions to their most recent states.
    // Creating new sessions where required.
    $number = 1;
    // We need a mapping from question IDs to slots, assuming that each question occurs only once.
    $slots = $templateusage->get_slots();
    $texfilter = new filter_tex($context, array());
    // If shufflequestions has been activated we go through the questions in the order determined by
    // the template question usage.
    if ($offlinequiz->shufflequestions) {
        foreach ($slots as $slot) {
            $slotquestion = $templateusage->get_question($slot);
            $currentquestionid = $slotquestion->id;
            // Add page break if necessary because of overflow.
            if ($pdf->GetY() > 230) {
                $pdf->AddPage();
                $pdf->Ln(14);
            }
            set_time_limit(120);
            $question = $questions[$currentquestionid];
            /*****************************************************/
            /*  Either we print the question HTML */
            /*****************************************************/
            $pdf->checkpoint();
            $questiontext = $question->questiontext;
            // Filter only for tex formulas.
            if (!empty($texfilter)) {
                $questiontext = $texfilter->filter($questiontext);
            }
            // Remove all HTML comments (typically from MS Office).
            $questiontext = preg_replace("/<!--.*?--\\s*>/ms", "", $questiontext);
            // Remove <font> tags.
            $questiontext = preg_replace("/<font[^>]*>[^<]*<\\/font>/ms", "", $questiontext);
            // Remove <script> tags that are created by mathjax preview.
            $questiontext = preg_replace("/<script[^>]*>[^<]*<\\/script>/ms", "", $questiontext);
            // Remove all class info from paragraphs because TCPDF won't use CSS.
            $questiontext = preg_replace('/<p[^>]+class="[^"]*"[^>]*>/i', "<p>", $questiontext);
            $questiontext = $trans->fix_image_paths($questiontext, $question->contextid, 'questiontext', $question->id, 1, 300);

 /**
  * To create an instance of this class, use
  * {@link question_usage_by_activity::get_attempt_iterator()}.
  * @param $quba the usage to iterate over.
  */
 public function __construct(question_usage_by_activity $quba) {
     $this->quba = $quba;
     $this->slots = $quba->get_slots();
     $this->rewind();
 }

/**
 * Counts the multichoice question in a questionusage.
 *
 * @param question_usage_by_activity $questionusage
 * @return number
 */
function offlinequiz_count_multichoice_questions(question_usage_by_activity $questionusage)
{
    $count = 0;
    $slots = $questionusage->get_slots();
    foreach ($slots as $slot) {
        $question = $questionusage->get_question($slot);
        if ($question->qtype->name() == 'multichoice' || $question->qtype->name() == 'multichoiceset') {
            $count++;
        }
    }
    return $count;
}

/**
 * Generates the LaTeX question form for an offlinequiz group.
 *
 * @param question_usage_by_activity $templateusage the template question  usage for this offline group
 * @param object $offlinequiz The offlinequiz object
 * @param object $group the offline group object
 * @param int $courseid the ID of the Moodle course
 * @param object $context the context of the offline quiz.
 * @param boolean correction if true the correction form is generated.
 * @return stored_file instance, the generated PDF file.
 */
function offlinequiz_create_latex_question(question_usage_by_activity $templateusage, $offlinequiz, $group, $courseid, $context, $correction = false)
{
    global $CFG, $DB, $OUTPUT;
    $letterstr = 'abcdefghijklmnopqrstuvwxyz';
    $groupletter = strtoupper($letterstr[$group->number - 1]);
    $coursecontext = context_course::instance($courseid);
    $course = $DB->get_record('course', array('id' => $courseid));
    $title = format_text($offlinequiz->name, FORMAT_HTML);
    $title .= ",  " . get_string('group') . $groupletter;
    // Load all the questions needed for this offline quiz group.
    $sql = "SELECT q.*, c.contextid, ogq.page, ogq.slot, ogq.maxmark\n              FROM {offlinequiz_group_questions} ogq,\n                   {question} q,\n                   {question_categories} c\n             WHERE ogq.offlinequizid = :offlinequizid\n               AND ogq.offlinegroupid = :offlinegroupid\n               AND q.id = ogq.questionid\n               AND q.category = c.id\n          ORDER BY ogq.slot ASC ";
    $params = array('offlinequizid' => $offlinequiz->id, 'offlinegroupid' => $group->id);
    // Load the questions.
    $questions = $DB->get_records_sql($sql, $params);
    if (!$questions) {
        echo $OUTPUT->box_start();
        echo $OUTPUT->error_text(get_string('noquestionsfound', 'offlinequiz', $groupletter));
        echo $OUTPUT->box_end();
        return;
    }
    // Load the question type specific information.
    if (!get_question_options($questions)) {
        print_error('Could not load question options');
    }
    $number = 1;
    // We need a mapping from question IDs to slots, assuming that each question occurs only once.
    $slots = $templateusage->get_slots();
    $latexforquestions = '\\begin{enumerate}' . "\n";
    // If shufflequestions has been activated we go through the questions in the order determined by
    // the template question usage.
    if ($offlinequiz->shufflequestions) {
        foreach ($slots as $slot) {
            $slotquestion = $templateusage->get_question($slot);
            $currentquestionid = $slotquestion->id;
            $question = $questions[$currentquestionid];
            $questiontext = offlinequiz_convert_html_to_latex($question->questiontext);
            $latexforquestions .= '\\item ' . $questiontext . "\n";
            if ($question->qtype == 'multichoice' || $question->qtype == 'multichoiceset') {
                // There is only a slot for multichoice questions.
                $attempt = $templateusage->get_question_attempt($slot);
                $order = $slotquestion->get_order($attempt);
                // Order of the answers.
                $latexforquestions .= '\\begin{enumerate}' . " \n";
                foreach ($order as $key => $answer) {
                    $latexforquestions .= offlinequiz_get_answer_latex($question, $answer);
                }
                $latexforquestions .= '\\end{enumerate}' . "\n";
                $infostr = offlinequiz_get_question_infostring($offlinequiz, $question);
                if ($infostr) {
                    $latexforquestions .= $infostr . "\n";
                }
            }
        }
        $latexforquestions .= '\\end{enumerate}' . "\n";
    } else {
        // No shufflequestions, so go through the questions as they have been added to the offlinequiz group.
        // We also have to show description questions that are not in the template.
        // First, compute mapping  questionid -> slotnumber.
        $questionslots = array();
        foreach ($slots as $slot) {
            $questionslots[$templateusage->get_question($slot)->id] = $slot;
        }
        foreach ($questions as $question) {
            $currentquestionid = $question->id;
            $questiontext = $question->questiontext;
            $questiontext = offlinequiz_convert_html_to_latex($question->questiontext);
            if ($question->qtype == 'description') {
                $latexforquestions .= "\n" . '\\ ' . $questiontext . "\n";
            } else {
                $latexforquestions .= '\\item ' . $questiontext . "\n";
            }
            if ($question->qtype == 'multichoice' || $question->qtype == 'multichoiceset') {
                $slot = $questionslots[$currentquestionid];
                // There is only a slot for multichoice questions.
                $slotquestion = $templateusage->get_question($slot);
                $attempt = $templateusage->get_question_attempt($slot);
                $order = $slotquestion->get_order($attempt);
                // Order of the answers.
                $latexforquestions .= '\\begin{enumerate}' . " \n";
                foreach ($order as $key => $answer) {
                    $latexforquestions .= offlinequiz_get_answer_latex($question, $answer);
                }
                $latexforquestions .= '\\end{enumerate}' . "\n";
                $infostr = offlinequiz_get_question_infostring($offlinequiz, $question);
                if ($infostr) {
                    $latexforquestions .= $infostr . "\n";
                }
            }
        }
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        $table->addRow();
        $cell = $table->addCell(200, $cellstyle)->addText(offlinequiz_str_html_docx(get_string('idnumber', 'offlinequiz')) . ':  ', 'brStyle');
        $table->addRow();
        $cell = $table->addCell(200, $cellstyle)->addText(offlinequiz_str_html_docx(get_string('studycode', 'offlinequiz')) . ':  ', 'brStyle');
        $table->addRow();
        $cell = $table->addCell(200, $cellstyle)->addText(offlinequiz_str_html_docx(get_string('signature', 'offlinequiz')) . ':  ', 'brStyle');
        $section->addTextBreak(2);
        // The DOCX intro text can be arbitrarily long so we have to catch page overflows.
        if (!empty($offlinequiz->pdfintro)) {
            $blocks = offlinequiz_convert_image_docx($offlinequiz->pdfintro);
            offlinequiz_print_blocks_docx($section, $blocks);
        }
        $section->addPageBreak();
    }
    // Load all the questions needed for this offline quiz group.
    $sql = "SELECT q.*, c.contextid, ogq.page, ogq.slot, ogq.maxmark \n              FROM {offlinequiz_group_questions} ogq,\n                   {question} q,\n                   {question_categories} c\n             WHERE ogq.offlinequizid = :offlinequizid\n               AND ogq.offlinegroupid = :offlinegroupid\n               AND q.id = ogq.questionid\n               AND q.category = c.id\n          ORDER BY ogq.slot ASC ";
    $params = array('offlinequizid' => $offlinequiz->id, 'offlinegroupid' => $group->id);
    // Load the questions.
    $questions = $DB->get_records_sql($sql, $params);
    if (!$questions) {
        echo $OUTPUT->box_start();
        echo $OUTPUT->error_text(get_string('noquestionsfound', 'offlinequiz', $groupletter));
        echo $OUTPUT->box_end();
        return;
    }
    // Load the question type specific information.
    if (!get_question_options($questions)) {
        print_error('Could not load question options');
    }
    // Restore the question sessions to their most recent states.
    // Creating new sessions where required.
    $number = 1;
    // We need a mapping from question IDs to slots, assuming that each question occurs only once.
    $slots = $templateusage->get_slots();
    $texfilter = new filter_tex($context, array());
    // Create the docx question numbering. This is only created once since we number all questions from 1...n.
    $questionnumbering = new PHPWord_Numbering_AbstractNumbering("Question-level", array(new PHPWord_Numbering_Level("1", PHPWord_Numbering_Level::NUMFMT_DECIMAL, "%1)", "left", $level1, $boldfont), new PHPWord_Numbering_Level("1", PHPWord_Numbering_Level::NUMFMT_LOWER_LETTER, "%2)", "left", $level2, $normalfont)));
    $docx->addNumbering($questionnumbering);
    // If shufflequestions has been activated we go through the questions in the order determined by
    // the template question usage.
    if ($offlinequiz->shufflequestions) {
        foreach ($slots as $slot) {
            $slotquestion = $templateusage->get_question($slot);
            $myquestion = $slotquestion->id;
            set_time_limit(120);
            $question = $questions[$myquestion];
            // Either we print the question HTML.
            $questiontext = $question->questiontext;
            // Filter only for tex formulas.
            if (!empty($texfilter)) {
                $questiontext = $texfilter->filter($questiontext);
            }
            // Remove all HTML comments (typically from MS Office).
            $questiontext = preg_replace("/<!--.*?--\\s*>/ms", "", $questiontext);
            // Remove <font> tags.
            $questiontext = preg_replace("/<font[^>]*>[^<]*<\\/font>/ms", "", $questiontext);
            // Remove <script> tags that are created by mathjax preview.
            $questiontext = preg_replace("/<script[^>]*>[^<]*<\\/script>/ms", "", $questiontext);
            // Remove all class info from paragraphs because TCDOCX won't use CSS.
            $questiontext = preg_replace('/<p[^>]+class="[^"]*"[^>]*>/i', "<p>", $questiontext);
            $questiontext = $trans->fix_image_paths($questiontext, $question->contextid, 'questiontext', $question->id, 0.6, 300, 'docx');
            $blocks = offlinequiz_convert_image_docx($questiontext);
            offlinequiz_print_blocks_docx($section, $blocks, $questionnumbering, 0);
            $answernumbering = new PHPWord_Numbering_AbstractNumbering("Adv Multi-level", array(new PHPWord_Numbering_Level("1", PHPWord_Numbering_Level::NUMFMT_DECIMAL, "%1.", "left", $level1, $boldfont), new PHPWord_Numbering_Level("1", PHPWord_Numbering_Level::NUMFMT_LOWER_LETTER, "%2)", "left", $level2, $normalfont)));
            $docx->addNumbering($answernumbering);
            if ($question->qtype == 'multichoice' || $question->qtype == 'multichoiceset') {