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moodle/question/classes/statistics/responses/analysis_for_subpart.php
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2013-11-01 12:06:43 +08:00

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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/>.
/**
*
* 'Classes' to classify the sub parts of a question response into.
*
* @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;
class analysis_for_subpart {
/**
* Takes an array of possible_responses - ({@link \question_possible_response} objects).
* Or takes an array of {@link \question_possible_response} objects.
*
* @param \question_possible_response[] $responseclasses
*/
public function __construct(array $responseclasses = null) {
if (is_array($responseclasses)) {
foreach ($responseclasses as $responseclassid => $responseclass) {
$this->responseclasses[$responseclassid] = new analysis_for_class($responseclass, $responseclassid);
}
}
}
/**
*
* @var analysis_for_class[]
*/
protected $responseclasses;
/**
* Unique ids for response classes.
*
* @return string[]
*/
public function get_response_class_ids() {
return array_keys($this->responseclasses);
}
/**
* @param string $classid id for response class.
* @return analysis_for_class
*/
public function get_response_class($classid) {
return $this->responseclasses[$classid];
}
public function has_multiple_response_classes() {
return count($this->responseclasses) > 1;
}
/**
* @param \question_classified_response $subpart
*/
public function count_response($subpart) {
$this->responseclasses[$subpart->responseclassid]->count_response($subpart->response, $subpart->fraction);
}
/**
* @param \qubaid_condition $qubaids
* @param int $questionid the question id
* @param string $subpartid
*/
public function cache($qubaids, $questionid, $subpartid) {
foreach ($this->responseclasses as $responseclassid => $responseclass) {
$responseclass->cache($qubaids, $questionid, $subpartid, $responseclassid);
}
}
/**
* @return bool whether this analysis has a response class with more than one
* different actual response, or if the actual response is different from
* the model response.
*/
public function has_actual_responses() {
foreach ($this->responseclasses as $responseclass) {
if ($responseclass->has_actual_responses()) {
return true;
}
}
return false;
}
}