|
1
|
|
|
<?php |
|
2
|
|
|
/* |
|
3
|
|
|
Condorcet PHP - Election manager and results calculator. |
|
4
|
|
|
Designed for the Condorcet method. Integrating a large number of algorithms extending Condorcet. Expandable for all types of voting systems. |
|
5
|
|
|
|
|
6
|
|
|
By Julien Boudry and contributors - MIT LICENSE (Please read LICENSE.txt) |
|
7
|
|
|
https://github.com/julien-boudry/Condorcet |
|
8
|
|
|
*/ |
|
9
|
|
|
declare(strict_types=1); |
|
10
|
|
|
|
|
11
|
|
|
namespace CondorcetPHP\Condorcet\ElectionProcess; |
|
12
|
|
|
|
|
13
|
|
|
use CondorcetPHP\Condorcet\Condorcet; |
|
14
|
|
|
use CondorcetPHP\Condorcet\CondorcetException; |
|
15
|
|
|
use CondorcetPHP\Condorcet\Result; |
|
16
|
|
|
use CondorcetPHP\Condorcet\Algo\Pairwise; |
|
17
|
|
|
use CondorcetPHP\Condorcet\Timer\Chrono as Timer_Chrono; |
|
18
|
|
|
|
|
19
|
|
|
// Manage Results for Election class |
|
20
|
|
|
trait ResultsProcess |
|
21
|
|
|
{ |
|
22
|
|
|
|
|
23
|
|
|
/////////// CONSTRUCTOR /////////// |
|
24
|
|
|
|
|
25
|
|
|
// Result |
|
26
|
|
|
protected $_Pairwise; |
|
27
|
|
|
protected $_Calculator; |
|
28
|
|
|
|
|
29
|
|
|
|
|
30
|
|
|
/////////// GET RESULTS /////////// |
|
31
|
|
|
|
|
32
|
|
|
// Generic function for default result with ability to change default object method |
|
33
|
90 |
|
public function getResult (?string $method = null, array $options = []) : Result |
|
34
|
|
|
{ |
|
35
|
90 |
|
$options = self::formatResultOptions($options); |
|
36
|
|
|
|
|
37
|
|
|
// Filter if tag is provided & return |
|
38
|
90 |
|
if ($options['%tagFilter']) : |
|
39
|
2 |
|
$chrono = new Timer_Chrono ($this->_timer, 'GetResult with filter'); |
|
40
|
|
|
|
|
41
|
2 |
|
$filter = new self; |
|
42
|
|
|
|
|
43
|
2 |
|
foreach ($this->getCandidatesList() as $candidate) : |
|
44
|
2 |
|
$filter->addCandidate($candidate); |
|
45
|
|
|
endforeach; |
|
46
|
|
|
|
|
47
|
2 |
|
foreach ($this->getVotesList($options['tags'], $options['withTag']) as $vote) : |
|
48
|
2 |
|
$filter->addVote($vote); |
|
49
|
|
|
endforeach; |
|
50
|
|
|
|
|
51
|
2 |
|
unset($chrono); |
|
52
|
|
|
|
|
53
|
2 |
|
return $filter->getResult($method); |
|
54
|
|
|
endif; |
|
55
|
|
|
|
|
56
|
|
|
////// Start ////// |
|
57
|
|
|
|
|
58
|
|
|
// Prepare |
|
59
|
90 |
|
$this->prepareResult(); |
|
60
|
|
|
|
|
61
|
|
|
////// |
|
62
|
|
|
|
|
63
|
89 |
|
$chrono = new Timer_Chrono ($this->_timer); |
|
64
|
|
|
|
|
65
|
89 |
|
if ($method === null) : |
|
66
|
7 |
|
$this->initResult(Condorcet::getDefaultMethod()); |
|
67
|
7 |
|
$result = $this->_Calculator[Condorcet::getDefaultMethod()]->getResult(); |
|
68
|
85 |
|
elseif ($method = Condorcet::isAuthMethod((string) $method)) : |
|
69
|
85 |
|
$this->initResult($method); |
|
70
|
83 |
|
$result = $this->_Calculator[$method]->getResult(); |
|
71
|
|
|
else : |
|
72
|
|
|
throw new CondorcetException(8,$method); |
|
73
|
|
|
endif; |
|
74
|
|
|
|
|
75
|
86 |
|
$chrono->setRole('GetResult for '.$method); |
|
76
|
|
|
|
|
77
|
86 |
|
return $result; |
|
78
|
|
|
} |
|
79
|
|
|
|
|
80
|
|
|
|
|
81
|
92 |
|
public function getWinner (?string $substitution = null) |
|
82
|
|
|
{ |
|
83
|
92 |
|
$algo = Condorcet::condorcetBasicSubstitution($substitution); |
|
84
|
|
|
|
|
85
|
|
|
////// |
|
86
|
|
|
|
|
87
|
92 |
|
if ($algo === Condorcet::CONDORCET_BASIC_CLASS) : |
|
88
|
90 |
|
new Timer_Chrono ($this->_timer, 'GetWinner for CondorcetBasic'); |
|
89
|
90 |
|
$this->initResult($algo); |
|
90
|
90 |
|
$result = $this->_Calculator[$algo]->getWinner(); |
|
91
|
|
|
|
|
92
|
90 |
|
return ($result === null) ? null : $this->getCandidateObjectFromKey($result); |
|
|
|
|
|
|
93
|
|
|
else : |
|
94
|
51 |
|
return $this->getResult($algo)->getWinner(); |
|
95
|
|
|
endif; |
|
96
|
|
|
} |
|
97
|
|
|
|
|
98
|
|
|
|
|
99
|
89 |
|
public function getLoser (?string $substitution = null) |
|
100
|
|
|
{ |
|
101
|
89 |
|
$algo = Condorcet::condorcetBasicSubstitution($substitution); |
|
102
|
|
|
|
|
103
|
|
|
////// |
|
104
|
|
|
|
|
105
|
89 |
|
if ($algo === Condorcet::CONDORCET_BASIC_CLASS) : |
|
106
|
89 |
|
new Timer_Chrono ($this->_timer, 'GetLoser for CondorcetBasic'); |
|
107
|
89 |
|
$this->initResult($algo); |
|
108
|
89 |
|
$result = $this->_Calculator[$algo]->getLoser(); |
|
109
|
|
|
|
|
110
|
89 |
|
return ($result === null) ? null : $this->getCandidateObjectFromKey($result); |
|
|
|
|
|
|
111
|
|
|
else : |
|
112
|
2 |
|
return $this->getResult($algo)->getLoser(); |
|
113
|
|
|
endif; |
|
114
|
|
|
} |
|
115
|
|
|
|
|
116
|
91 |
|
public function getPairwise () : Pairwise |
|
117
|
|
|
{ |
|
118
|
91 |
|
$this->prepareResult(); |
|
|
|
|
|
|
119
|
91 |
|
return $this->_Pairwise; |
|
120
|
|
|
} |
|
121
|
|
|
|
|
122
|
1 |
|
public function getExplicitPairwise () : array |
|
123
|
|
|
{ |
|
124
|
1 |
|
return $this->getPairwise()->getExplicitPairwise(); |
|
125
|
|
|
} |
|
126
|
|
|
|
|
127
|
|
|
|
|
128
|
|
|
|
|
129
|
|
|
/////////// MAKE RESULTS /////////// |
|
130
|
|
|
|
|
131
|
1 |
|
public function computeResult (?string $method = null) : void |
|
132
|
|
|
{ |
|
133
|
1 |
|
$this->getResult($method); |
|
134
|
1 |
|
} |
|
135
|
|
|
|
|
136
|
94 |
|
protected function makePairwise () : void |
|
137
|
|
|
{ |
|
138
|
94 |
|
$this->_Pairwise = new Pairwise ($this); |
|
139
|
94 |
|
} |
|
140
|
|
|
|
|
141
|
94 |
|
protected function initResult (string $class) : void |
|
142
|
|
|
{ |
|
143
|
94 |
|
if ( !isset($this->_Calculator[$class]) ) : |
|
144
|
94 |
|
$this->_Calculator[$class] = new $class($this); |
|
145
|
|
|
endif; |
|
146
|
92 |
|
} |
|
147
|
|
|
|
|
148
|
|
|
// Cleanup results to compute again with new votes |
|
149
|
95 |
|
protected function cleanupResult () : void |
|
150
|
|
|
{ |
|
151
|
|
|
// Reset state |
|
152
|
95 |
|
if ($this->_State > 2) : |
|
153
|
10 |
|
$this->_State = 2; |
|
154
|
|
|
endif; |
|
155
|
|
|
|
|
156
|
|
|
////// |
|
157
|
|
|
|
|
158
|
|
|
// Clean pairwise |
|
159
|
95 |
|
$this->_Pairwise = null; |
|
160
|
|
|
|
|
161
|
|
|
// Algos |
|
162
|
95 |
|
$this->_Calculator = null; |
|
163
|
95 |
|
} |
|
164
|
|
|
|
|
165
|
|
|
|
|
166
|
|
|
/////////// UTILS /////////// |
|
167
|
|
|
|
|
168
|
90 |
|
protected static function formatResultOptions (array $arg) : array |
|
169
|
|
|
{ |
|
170
|
|
|
// About tag filter |
|
171
|
90 |
|
if (isset($arg['tags'])): |
|
172
|
2 |
|
$arg['%tagFilter'] = true; |
|
173
|
|
|
|
|
174
|
2 |
|
if ( !isset($arg['withTag']) || !is_bool($arg['withTag']) ) : |
|
175
|
2 |
|
$arg['withTag'] = true; |
|
176
|
|
|
endif; |
|
177
|
|
|
else: |
|
178
|
90 |
|
$arg['%tagFilter'] = false; |
|
179
|
|
|
endif; |
|
180
|
|
|
|
|
181
|
90 |
|
return $arg; |
|
182
|
|
|
} |
|
183
|
|
|
} |
|
184
|
|
|
|
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idableprovides a methodequalsIdthat in turn relies on the methodgetId(). If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()as an abstract method to the trait will make sure it is available.