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See Release Notes

  • Bug fixes for general core bugs in 3.10.x will end 8 November 2021 (12 months).
  • Bug fixes for security issues in 3.10.x will end 9 May 2022 (18 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
<?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/>.

/**
 * Common functions for the quiz statistics report.
 *
 * @package    quiz_statistics
 * @copyright  2013 The Open University
 * @author     James Pratt me@jamiep.org
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

> use mod_quiz\quiz_attempt; defined('MOODLE_INTERNAL') || die; >
/** * SQL to fetch relevant 'quiz_attempts' records. * * @param int $quizid quiz id to get attempts for * @param \core\dml\sql_join $groupstudentsjoins Contains joins, wheres, params, empty if not using groups * @param string $whichattempts which attempts to use, represented internally as one of the constants as used in * $quiz->grademethod ie. * QUIZ_GRADEAVERAGE, QUIZ_GRADEHIGHEST, QUIZ_ATTEMPTLAST or QUIZ_ATTEMPTFIRST * we calculate stats based on which attempts would affect the grade for each student. * @param bool $includeungraded whether to fetch ungraded attempts too * @return array FROM and WHERE sql fragments and sql params */ function quiz_statistics_attempts_sql($quizid, \core\dml\sql_join $groupstudentsjoins, $whichattempts = QUIZ_GRADEAVERAGE, $includeungraded = false) { $fromqa = "{quiz_attempts} quiza "; $whereqa = 'quiza.quiz = :quizid AND quiza.preview = 0 AND quiza.state = :quizstatefinished';
< $qaparams = array('quizid' => (int)$quizid, 'quizstatefinished' => quiz_attempt::FINISHED);
> $qaparams = ['quizid' => (int)$quizid, 'quizstatefinished' => quiz_attempt::FINISHED];
if (!empty($groupstudentsjoins->joins)) { $fromqa .= "\nJOIN {user} u ON u.id = quiza.userid {$groupstudentsjoins->joins} "; $whereqa .= " AND {$groupstudentsjoins->wheres}"; $qaparams += $groupstudentsjoins->params; } $whichattemptsql = quiz_report_grade_method_sql($whichattempts); if ($whichattemptsql) { $whereqa .= ' AND ' . $whichattemptsql; } if (!$includeungraded) { $whereqa .= ' AND quiza.sumgrades IS NOT NULL'; }
< return array($fromqa, $whereqa, $qaparams);
> return [$fromqa, $whereqa, $qaparams];
} /** * Return a {@link qubaid_condition} from the values returned by {@link quiz_statistics_attempts_sql}. * * @param int $quizid * @param \core\dml\sql_join $groupstudentsjoins Contains joins, wheres, params * @param string $whichattempts which attempts to use, represented internally as one of the constants as used in * $quiz->grademethod ie. * QUIZ_GRADEAVERAGE, QUIZ_GRADEHIGHEST, QUIZ_ATTEMPTLAST or QUIZ_ATTEMPTFIRST * we calculate stats based on which attempts would affect the grade for each student. * @param bool $includeungraded * @return \qubaid_join */ function quiz_statistics_qubaids_condition($quizid, \core\dml\sql_join $groupstudentsjoins, $whichattempts = QUIZ_GRADEAVERAGE, $includeungraded = false) { list($fromqa, $whereqa, $qaparams) = quiz_statistics_attempts_sql( $quizid, $groupstudentsjoins, $whichattempts, $includeungraded); return new qubaid_join($fromqa, 'quiza.uniqueid', $whereqa, $qaparams);
< } < < /** < * This helper function returns a sequence of colours each time it is called. < * Used for choosing colours for graph data series. < * @return string colour name. < * @deprecated since Moodle 3.2 < */ < function quiz_statistics_graph_get_new_colour() { < debugging('The function quiz_statistics_graph_get_new_colour() is deprecated, please do not use it any more. ' < . 'Colours will be handled by the charting library directly.', DEBUG_DEVELOPER); < < static $colourindex = -1; < $colours = array('red', 'green', 'yellow', 'orange', 'purple', 'black', < 'maroon', 'blue', 'ltgreen', 'navy', 'ltred', 'ltltgreen', 'ltltorange', < 'olive', 'gray', 'ltltred', 'ltorange', 'lime', 'ltblue', 'ltltblue'); < < $colourindex = ($colourindex + 1) % count($colours); < < return $colours[$colourindex];
}