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<?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/>. /** * @package core_question * @copyright 2013 The Open University * @author James Pratt me@jamiep.org * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later / namespace core_question\statistics\responses; /* * The leafs of the analysis data structure. * * - There is a separate data structure for each question or sub question's analysis * {@link \core_question\statistics\responses\analysis_for_question} * or {@link \core_question\statistics\responses\analysis_for_question_all_tries}. * - There are separate analysis for each variant in this top level instance. * - Then there are class instances representing the analysis of each of the sub parts of each variant of the question. * {@link \core_question\statistics\responses\analysis_for_subpart}. * - Then within the sub part analysis there are response class analysis * {@link \core_question\statistics\responses\analysis_for_class}. * - Then within each class analysis there are analysis for each actual response * {@link \core_question\statistics\responses\analysis_for_actual_response}. * * @package core_question * @copyright 2014 The Open University * @author James Pratt me@jamiep.org * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later / class analysis_for_actual_response { /* * @var int[] count per try for this response. / protected $trycount = array(); /* * @var int total count of tries with this response. / protected $totalcount = 0; /* * @var float grade for this response, normally between 0 and 1. / protected $fraction; /* * @var string the response as it will be displayed in report. / protected $response; /* * @param string $response * @param float $fraction / public function __construct($response, $fraction) { $this->response = $response; $this->fraction = $fraction; } /* * Used to count the occurrences of response sub parts. * * @param int $try the try number, or 0 if only keeping one count, not a count for each try. / public function increment_count($try = 0) { $this->totalcount++; if ($try != 0) { if ($try > analyser::MAX_TRY_COUNTED) { $try = analyser::MAX_TRY_COUNTED; } if (!isset($this->trycount[$try])) { $this->trycount[$try] = 0; } $this->trycount[$try]++; } } /* * Used to set the count of occurrences of response sub parts, when loading count from cache. * * @param int $try the try number, or 0 if only keeping one count, not a count for each try. * @param int $count / public function set_count($try, $count) { $this->totalcount = $this->totalcount + $count; $this->trycount[$try] = $count; } /* * Cache analysis for class. * * @param \qubaid_condition $qubaids which question usages have been analysed. * @param string $whichtries which tries have been analysed? * @param int $questionid which question. * @param int $variantno which variant. * @param string $subpartid which sub part is this actual response in? * @param string $responseclassid which response class is this actual response in? * @param int\|null $calculationtime time when the analysis was done. (Defaults to time()). / public function cache($qubaids, $whichtries, $questionid, $variantno, $subpartid, $responseclassid, $calculationtime = null) { global $DB; $row = new \stdClass(); $row->hashcode = $qubaids->get_hash_code(); $row->whichtries = $whichtries; $row->questionid = $questionid; $row->variant = $variantno; $row->subqid = $subpartid; if ($responseclassid === '') { $row->aid = null; } else { $row->aid = $responseclassid; } $row->response = $this->response; $row->credit = $this->fraction; $row->timemodified = $calculationtime ?? time(); $analysisid = $DB->insert_record('question_response_analysis', $row); if ($whichtries === \question_attempt::ALL_TRIES) { foreach ($this->trycount as $try => $count) { $countrow = new \stdClass(); $countrow->try = $try; $countrow->rcount = $count; $countrow->analysisid = $analysisid; $DB->insert_record('question_response_count', $countrow, false); } } else { $countrow = new \stdClass(); $countrow->try = 0; $countrow->rcount = $this->totalcount; $countrow->analysisid = $analysisid; $DB->insert_record('question_response_count', $countrow, false); } } /* * Returns an object with a property for each column of the question response analysis table. * * @param string $partid * @param string $modelresponse * @return object / public function data_for_question_response_table($partid, $modelresponse) { $rowdata = new \stdClass(); $rowdata->part = $partid; $rowdata->responseclass = $modelresponse; $rowdata->response = $this->response; $rowdata->fraction = $this->fraction; $rowdata->totalcount = $this->totalcount; $rowdata->trycount = $this->trycount; return $rowdata; } /* * What is the highest try number that this response has been seen? * * @return int try number */ public function get_maximum_tries() { return max(array_keys($this->trycount)); } }

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