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dtux__serveur-vote-lalis/include/condorcet/Examples/2. AdvancedObjectManagement.php

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2022-09-21 12:39:11 +02:00
<?php
declare(strict_types=1);
/* NO INTERFACE here, see html examples for it */
# Quick tour of the main features of Condorcet PHP
// I - Install
use CondorcetPHP\Condorcet\{Candidate, Election, Vote};
$firstPart = '';
/* THE FOLLOWING CODE IS LIVE FOLLOWING THE FIRST PART EXPRESSED IN THE PREVIOUS FILE "1. Overview.php" */
require_once __DIR__.'/1. Overview.php';
// VI - Play with Condorcet objects (Advanced)
// Create a second election
$election2 = new Election;
// Create three candidate : 'A', 'B' and 'C'
for ($i = 0; $i < 3; $i++) {
$election2->addCandidate();
}
# Same candidate in multiple elections
// Add two participating candidates from $election1
$election2->addCandidate($election1->getCandidateObjectFromName('Debussy'));
$election2->addCandidate($myLutoCandidate);
// And, I can change again theirs name. The new name is now applied in the two elections and their votes. If namesake in another election, an exception is throw.
$myLutoCandidate->setName('W.Lutoslawski');
// Have a look on $myLutoCandidate history
$myLutoCandidate->getHistory();
// Have a look to a vote from $election1. The candidate name have changed.
$myVote4->getContextualRanking($election1, true);
// In what elections, this candidates have a part ?
$myLutoCandidate->getLinks(); // Get his the two Election objects
$myLutoCandidate->countLinks(); // Or just count it. return (int) 2.
# The same vote applied to multiple elections.
$myNewVote = new Vote([
1 => $election1->getCandidateObjectFromName('Debussy'),
2 => $election2->getCandidateObjectFromName('A'),
3 => $election1->getCandidateObjectFromName('Olivier Messiaen'),
4 => $election2->getCandidateObjectFromName('B'),
5 => $election1->getCandidateObjectFromName('Koechlin'),
6 => $election1->getCandidateObjectFromName('W.Lutoslawski'),
7 => new Candidate('Another candidate'), // This one does not takes part in any of two elections.
8 => $election1->getCandidateObjectFromName('Caplet'),
9 => $election2->getCandidateObjectFromName('C'),
]);
// Add it on election 1 and 2
$election1->addVote($myNewVote);
$election2->addVote($myNewVote);
// Check ranking
$myNewVote->getRanking(); // Here you get the original 9 ranks.
// Check ranking
$myNewVote->getContextualRanking($election1); // Here you get the vote applicable to $election 1
$myNewVote->getContextualRanking($election2); // Here you get the vote applicable to $election 2
// In what election, this candidates have a part ?
$myNewVote->getLinks(); // Get Condorcet objects
$myNewVote->countLinks(); // Or just count it
// Now we can change vote ranking. result from all election will be affected.
$myNewVote->setRanking([
1 => $election2->getCandidateObjectFromName('B'),
2 => $election1->getCandidateObjectFromName('Koechlin'),
3 => $election1->getCandidateObjectFromName('W.Lutoslawski'),
]);
# Get Ranking history
$myNewVote->getHistory();
print 'Success!
Process in: '. round(microtime(true) - $start_time, 3) . 's';