Current Path : C:/xampp/htdocs/moodle/mod/quiz/report/statistics/ |
Current File : C:/xampp/htdocs/moodle/mod/quiz/report/statistics/statistics_question_table.php |
<?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/>. /** * Quiz statistics report, table for showing response analysis for a particular question (or sub question). * * @package quiz_statistics * @copyright 2014 Open University * @author James Pratt <me@jamiep.org> * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ defined('MOODLE_INTERNAL') || die(); require_once($CFG->libdir . '/tablelib.php'); /** * This table shows statistics about a particular question. * * Lists the responses that students made to this question, with frequency counts. * * The responses may be grouped, either by sub-part of the question, or by the * answer they match. * * @copyright 2014 Open University * @author James Pratt <me@jamiep.org> * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ class quiz_statistics_question_table extends flexible_table { /** @var object full question object for this question. */ protected $questiondata; /** @var int no of attempts. */ protected $s; /** * Constructor. * * @param int $qid the id of the particular question whose statistics are being * displayed. */ public function __construct($qid) { parent::__construct('mod-quiz-report-statistics-question-table' . $qid); } /** * Set up columns and column names and other table settings. * * @param moodle_url $reporturl * @param object $questiondata * @param integer $s number of attempts on this question. * @param \core_question\statistics\responses\analysis_for_question $responseanalysis */ public function question_setup($reporturl, $questiondata, $s, $responseanalysis) { $this->questiondata = $questiondata; $this->s = $s; $this->define_baseurl($reporturl->out()); $this->collapsible(false); $this->set_attribute('class', 'generaltable generalbox boxaligncenter quizresponseanalysis'); // Define the table columns. $columns = array(); $headers = array(); if ($responseanalysis->has_subparts()) { $columns[] = 'part'; $headers[] = get_string('partofquestion', 'quiz_statistics'); } if ($responseanalysis->has_multiple_response_classes()) { $columns[] = 'responseclass'; $headers[] = get_string('modelresponse', 'quiz_statistics'); if ($responseanalysis->has_actual_responses()) { $columns[] = 'response'; $headers[] = get_string('actualresponse', 'quiz_statistics'); } } else { $columns[] = 'response'; $headers[] = get_string('response', 'quiz_statistics'); } $columns[] = 'fraction'; $headers[] = get_string('optiongrade', 'quiz_statistics'); if (!$responseanalysis->has_multiple_tries_data()) { $columns[] = 'totalcount'; $headers[] = get_string('count', 'quiz_statistics'); } else { $countcolumns = range(1, $responseanalysis->get_maximum_tries()); foreach ($countcolumns as $countcolumn) { $columns[] = 'trycount'.$countcolumn; $headers[] = get_string('counttryno', 'quiz_statistics', $countcolumn); } } $columns[] = 'frequency'; $headers[] = get_string('frequency', 'quiz_statistics'); $this->define_columns($columns); $this->define_headers($headers); $this->sortable(false); $this->column_class('fraction', 'numcol'); $this->column_class('count', 'numcol'); $this->column_class('frequency', 'numcol'); $this->column_suppress('part'); $this->column_suppress('responseclass'); parent::setup(); } /** * Take a float where 1 represents 100% and return a string representing the percentage. * * @param float $fraction The fraction. * @return string The fraction as a percentage. */ protected function format_percentage($fraction) { return format_float($fraction * 100, 2) . '%'; } /** * The mark fraction that this response earns. * @param object $response containst the data to display. * @return string contents of this table cell. */ protected function col_fraction($response) { if (is_null($response->fraction)) { return ''; } return $this->format_percentage($response->fraction); } /** * The frequency with which this response was given. * @param object $response contains the data to display. * @return string contents of this table cell. */ protected function col_frequency($response) { if (!$this->s) { return ''; } return $this->format_percentage($response->totalcount / $this->s); } /** * If there is not a col_{column name} method then we call this method. If it returns null * that means just output the property as in the table raw data. If this returns none null * then this is the output for this cell of the table. * * @param string $colname The name of this column. * @param object $response The raw data for this row. * @return string|null The value for this cell of the table or null means use raw data. */ public function other_cols($colname, $response) { if (preg_match('/^trycount(\d+)$/', $colname, $matches)) { if (isset($response->trycount[$matches[1]])) { return $response->trycount[$matches[1]]; } else { return 0; } } else if ($colname == 'part' || $colname == 'responseclass' || $colname == 'response') { return s($response->$colname); } else { return null; } } }