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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* This file contains a class to analyse all the responses for multiple tries at a particular question.
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*
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* @package core_question
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* @copyright 2014 Open University
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* @author Jamie Pratt <me@jamiep.org>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace core_question\statistics\responses;
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/**
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* Analysis for possible responses for parts of a question with multiple submitted responses.
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*
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* If the analysis was for a single try it would be handled by {@link \core_question\statistics\responses\analysis_for_question}.
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*
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* - There is a separate data structure for each question or sub question's analysis
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* {@link \core_question\statistics\responses\analysis_for_question}
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* or {@link \core_question\statistics\responses\analysis_for_question_all_tries}.
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* - There are separate analysis for each variant in this top level instance.
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* - Then there are class instances representing the analysis of each of the sub parts of each variant of the question.
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* {@link \core_question\statistics\responses\analysis_for_subpart}.
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* - Then within the sub part analysis there are response class analysis
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* {@link \core_question\statistics\responses\analysis_for_class}.
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* - Then within each class analysis there are analysis for each actual response
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* {@link \core_question\statistics\responses\analysis_for_actual_response}.
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*
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* @package core_question
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* @copyright 2014 The Open University
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* @author James Pratt me@jamiep.org
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class analysis_for_question_all_tries extends analysis_for_question{
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/**
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* Constructor.
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*
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* @param int $variantno variant number
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* @param \array[] $responsepartsforeachtry for question with multiple tries we expect an array with first index being try no
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* then second index is subpartid and values are \question_classified_response
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*/
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public function count_response_parts($variantno, $responsepartsforeachtry) {
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foreach ($responsepartsforeachtry as $try => $responseparts) {
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foreach ($responseparts as $subpartid => $responsepart) {
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$this->get_analysis_for_subpart($variantno, $subpartid)->count_response($responsepart, $try);
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}
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}
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}
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public function has_multiple_tries_data() {
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return true;
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}
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/**
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* What is the highest number of tries at this question?
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*
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* @return int try number
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*/
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public function get_maximum_tries() {
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$max = 1;
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foreach ($this->get_variant_nos() as $variantno) {
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foreach ($this->get_subpart_ids($variantno) as $subpartid) {
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$max = max($max, $this->get_analysis_for_subpart($variantno, $subpartid)->get_maximum_tries());
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}
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}
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return $max;
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}
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}
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