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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/>.
/**
* This file contains a class to analyse all the responses for multiple tries at a particular question.
*
* @package core_question
* @copyright 2014 Open University
* @author Jamie Pratt <me@jamiep.org>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace core_question\statistics\responses;
/**
* Analysis for possible responses for parts of a question with multiple submitted responses.
*
* If the analysis was for a single try it would be handled by {@link \core_question\statistics\responses\analysis_for_question}.
*
* - 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_question_all_tries extends analysis_for_question{
/**
* Constructor.
*
* @param int $variantno variant number
* @param \array[] $responsepartsforeachtry for question with multiple tries we expect an array with first index being try no
* then second index is subpartid and values are \question_classified_response
*/
public function count_response_parts($variantno, $responsepartsforeachtry) {
foreach ($responsepartsforeachtry as $try => $responseparts) {
foreach ($responseparts as $subpartid => $responsepart) {
$this->get_analysis_for_subpart($variantno, $subpartid)->count_response($responsepart, $try);
}
}
}
public function has_multiple_tries_data() {
return true;
}
/**
* What is the highest number of tries at this question?
*
* @return int try number
*/
public function get_maximum_tries() {
$max = 1;
foreach ($this->get_variant_nos() as $variantno) {
foreach ($this->get_subpart_ids($variantno) as $subpartid) {
$max = max($max, $this->get_analysis_for_subpart($variantno, $subpartid)->get_maximum_tries());
}
}
return $max;
}
}
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