|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Wikibase\DataModel\Services\Diff\Internal; |
|
4
|
|
|
|
|
5
|
|
|
use Diff\DiffOp\Diff\Diff; |
|
6
|
|
|
use Diff\DiffOp\DiffOp; |
|
7
|
|
|
use Diff\DiffOp\DiffOpAdd; |
|
8
|
|
|
use Diff\DiffOp\DiffOpChange; |
|
9
|
|
|
use Diff\DiffOp\DiffOpRemove; |
|
10
|
|
|
use Diff\Patcher\PatcherException; |
|
11
|
|
|
use InvalidArgumentException; |
|
12
|
|
|
use Wikibase\DataModel\Statement\Statement; |
|
13
|
|
|
use Wikibase\DataModel\Statement\StatementList; |
|
14
|
|
|
|
|
15
|
|
|
/** |
|
16
|
|
|
* TODO: Class must be public. |
|
17
|
|
|
* TODO: Should this support actual edit conflict detection? |
|
18
|
|
|
* |
|
19
|
|
|
* Package private. |
|
20
|
|
|
* |
|
21
|
|
|
* @since 1.0 |
|
22
|
|
|
* |
|
23
|
|
|
* @license GPL-2.0+ |
|
24
|
|
|
* @author Jeroen De Dauw < [email protected] > |
|
25
|
|
|
* @author Thiemo Mättig |
|
26
|
|
|
*/ |
|
27
|
2 |
|
class StatementListPatcher { |
|
28
|
2 |
|
|
|
29
|
|
|
/** |
|
30
|
2 |
|
* @since 3.6 |
|
31
|
1 |
|
* |
|
32
|
1 |
|
* @param StatementList $statements |
|
33
|
|
|
* @param Diff $patch |
|
34
|
2 |
|
* |
|
35
|
2 |
|
* @throws PatcherException |
|
36
|
|
|
*/ |
|
37
|
|
|
public function patchStatementList( StatementList $statements, Diff $patch ) { |
|
38
|
|
|
/** @var DiffOp $diffOp */ |
|
39
|
|
|
foreach ( $patch as $diffOp ) { |
|
40
|
|
|
switch ( true ) { |
|
41
|
|
|
case $diffOp instanceof DiffOpAdd: |
|
42
|
|
|
/** @var DiffOpAdd $diffOp */ |
|
43
|
|
|
/** @var Statement $statement */ |
|
44
|
2 |
|
$statement = $diffOp->getNewValue(); |
|
45
|
2 |
|
$guid = $statement->getGuid(); |
|
46
|
|
|
if ( $statements->getFirstStatementWithGuid( $guid ) === null ) { |
|
47
|
|
|
$statements->addStatement( $statement ); |
|
48
|
|
|
} |
|
49
|
|
|
break; |
|
50
|
2 |
|
|
|
51
|
1 |
|
case $diffOp instanceof DiffOpChange: |
|
52
|
2 |
|
/** @var DiffOpChange $diffOp */ |
|
53
|
|
|
/** @var Statement $oldStatement */ |
|
54
|
2 |
|
/** @var Statement $newStatement */ |
|
55
|
|
|
$oldStatement = $diffOp->getOldValue(); |
|
56
|
2 |
|
$newStatement = $diffOp->getNewValue(); |
|
57
|
1 |
|
$this->changeStatement( $statements, $oldStatement->getGuid(), $newStatement ); |
|
58
|
2 |
|
break; |
|
59
|
|
|
|
|
60
|
2 |
|
case $diffOp instanceof DiffOpRemove: |
|
61
|
|
|
/** @var DiffOpRemove $diffOp */ |
|
62
|
|
|
/** @var Statement $statement */ |
|
63
|
|
|
$statement = $diffOp->getOldValue(); |
|
64
|
|
|
$statements->removeStatementsWithGuid( $statement->getGuid() ); |
|
65
|
|
|
break; |
|
66
|
|
|
|
|
67
|
|
|
default: |
|
68
|
|
|
throw new PatcherException( 'Invalid statement list diff' ); |
|
69
|
|
|
} |
|
70
|
|
|
} |
|
71
|
|
|
} |
|
72
|
|
|
|
|
73
|
|
|
/** |
|
74
|
|
|
* @param StatementList $statements |
|
75
|
|
|
* @param string|null $oldGuid |
|
76
|
|
|
* @param Statement $newStatement |
|
77
|
|
|
*/ |
|
78
|
|
|
private function changeStatement( StatementList $statements, $oldGuid, Statement $newStatement ) { |
|
79
|
|
|
$replacements = array(); |
|
80
|
|
|
|
|
81
|
|
|
foreach ( $statements->toArray() as $statement ) { |
|
82
|
|
|
$guid = $statement->getGuid(); |
|
83
|
|
|
|
|
84
|
|
|
// Collect all elements starting from the first with the same GUID |
|
85
|
|
|
if ( $replacements !== array() ) { |
|
86
|
|
|
$guid === null |
|
87
|
|
|
? $replacements[] = $statement |
|
88
|
|
|
: $replacements[$guid] = $statement; |
|
89
|
|
|
} elseif ( $guid === $oldGuid ) { |
|
90
|
|
|
$guid === null |
|
91
|
|
|
? $replacements[] = $newStatement |
|
92
|
|
|
: $replacements[$guid] = $newStatement; |
|
93
|
|
|
} |
|
94
|
|
|
} |
|
95
|
|
|
|
|
96
|
|
|
// Remove all starting from the one that should be replaced |
|
97
|
|
|
foreach ( $replacements as $guid => $statement ) { |
|
98
|
|
|
$statements->removeStatementsWithGuid( is_int( $guid ) ? null : $guid ); |
|
99
|
|
|
} |
|
100
|
|
|
// Re-add all starting from the new one |
|
101
|
|
|
foreach ( $replacements as $statement ) { |
|
102
|
|
|
$statements->addStatement( $statement ); |
|
103
|
|
|
} |
|
104
|
|
|
} |
|
105
|
|
|
|
|
106
|
|
|
/** |
|
107
|
|
|
* @deprecated since 3.6, use patchStatementList instead |
|
108
|
|
|
* |
|
109
|
|
|
* @param StatementList $statements |
|
110
|
|
|
* @param Diff $patch |
|
111
|
|
|
* |
|
112
|
|
|
* @throws InvalidArgumentException |
|
113
|
|
|
* @return StatementList |
|
114
|
|
|
*/ |
|
115
|
|
|
public function getPatchedStatementList( StatementList $statements, Diff $patch ) { |
|
116
|
|
|
$patched = clone $statements; |
|
117
|
|
|
$this->patchStatementList( $patched, $patch ); |
|
118
|
|
|
return $patched; |
|
119
|
|
|
} |
|
120
|
|
|
|
|
121
|
|
|
} |
|
122
|
|
|
|
wmde /
WikibaseDataModelServices
