1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
namespace SMW\Notifications\ChangeNotification; |
4
|
|
|
|
5
|
|
|
use SMW\Store; |
6
|
|
|
use SMW\ApplicationFactory; |
7
|
|
|
use SMW\DataValueFactory; |
8
|
|
|
use SMW\DIWikiPage; |
9
|
|
|
use SMW\DIProperty; |
10
|
|
|
use SMW\SQLStore\CompositePropertyTableDiffIterator; |
11
|
|
|
use SMW\Notifications\PropertyRegistry; |
12
|
|
|
use User; |
13
|
|
|
use Hooks; |
14
|
|
|
|
15
|
|
|
/** |
16
|
|
|
* @license GNU GPL v2+ |
17
|
|
|
* @since 1.0 |
18
|
|
|
* |
19
|
|
|
* @author mwjames |
20
|
|
|
*/ |
21
|
|
|
class ChangeNotificationFilter { |
22
|
|
|
|
23
|
|
|
const VALUE_CHANGE = 'smw-value-change'; |
24
|
|
|
const SPECIFICATION_CHANGE = 'smw-specification-change'; |
25
|
|
|
|
26
|
|
|
/** |
27
|
|
|
* @var DIWikiPage |
28
|
|
|
*/ |
29
|
|
|
private $subject; |
30
|
|
|
|
31
|
|
|
/** |
32
|
|
|
* @var Store |
33
|
|
|
*/ |
34
|
|
|
private $store; |
35
|
|
|
|
36
|
|
|
/** |
37
|
|
|
* @var DataValueFactory |
38
|
|
|
*/ |
39
|
|
|
private $dataValueFactory; |
40
|
|
|
|
41
|
|
|
/** |
42
|
|
|
* @var array |
43
|
|
|
*/ |
44
|
|
|
private $detectedProperties = array(); |
45
|
|
|
|
46
|
|
|
/** |
47
|
|
|
* In case detection matrix was stored as subobject on a property then match |
48
|
|
|
* its pairs of property => subobjectKey so that later the Locator can find |
49
|
|
|
* out which subobject contains the group that needs to be notified. |
50
|
|
|
* |
51
|
|
|
* @var array |
52
|
|
|
*/ |
53
|
|
|
private $subSemanticDataMatch = array(); |
54
|
|
|
|
55
|
|
|
/** |
56
|
|
|
* @var string|null |
57
|
|
|
*/ |
58
|
|
|
private $type = null; |
59
|
|
|
|
60
|
|
|
/** |
61
|
|
|
* @var User|null |
62
|
|
|
*/ |
63
|
|
|
private $agent = null; |
64
|
|
|
|
65
|
|
|
/** |
66
|
|
|
* @var boolean |
67
|
|
|
*/ |
68
|
|
|
private $canNotify = false; |
69
|
|
|
|
70
|
|
|
/** |
71
|
|
|
* @since 1.0 |
72
|
|
|
* |
73
|
|
|
* @param DIWikiPage $subject |
74
|
|
|
* @param Store $store |
75
|
|
|
*/ |
76
|
8 |
|
public function __construct( DIWikiPage $subject, Store $store ) { |
77
|
8 |
|
$this->subject = $subject; |
78
|
8 |
|
$this->store = $store; |
79
|
8 |
|
$this->dataValueFactory = DataValueFactory::getInstance(); |
80
|
8 |
|
} |
81
|
|
|
|
82
|
|
|
/** |
83
|
|
|
* @since 1.0 |
84
|
|
|
* |
85
|
|
|
* @param User $agent |
86
|
|
|
*/ |
87
|
4 |
|
public function setAgent( User $agent ) { |
88
|
4 |
|
$this->agent = $agent; |
89
|
4 |
|
} |
90
|
|
|
|
91
|
|
|
/** |
92
|
|
|
* @see EchoEvent::create |
93
|
|
|
* |
94
|
|
|
* @since 1.0 |
95
|
|
|
* |
96
|
|
|
* @param boolean|null $hasChangeToNotifyAbout |
97
|
|
|
* |
98
|
|
|
* @return array |
99
|
|
|
*/ |
100
|
2 |
|
public function getEventRecord( $hasChangeToNotifyAbout = false ) { |
101
|
|
|
|
102
|
2 |
|
if ( $this->subject === null || $this->type === null || !$hasChangeToNotifyAbout ) { |
|
|
|
|
103
|
1 |
|
wfDebugLog( 'smw', 'EchoEvent was not triggered' ); |
104
|
1 |
|
return array(); |
105
|
|
|
} |
106
|
|
|
|
107
|
|
|
return array( |
108
|
1 |
|
'agent' => $this->agent, |
109
|
|
|
'extra' => array( |
110
|
1 |
|
'notifyAgent' => false, |
111
|
1 |
|
'revid' => $this->subject->getTitle()->getLatestRevID(), |
112
|
1 |
|
'properties' => $this->detectedProperties, |
113
|
1 |
|
'subSemanticDataMatch' => $this->subSemanticDataMatch, |
114
|
1 |
|
'subject' => $this->subject |
115
|
1 |
|
), |
116
|
1 |
|
'title' => $this->subject->getTitle(), |
117
|
1 |
|
'type' => $this->type |
118
|
1 |
|
); |
119
|
|
|
} |
120
|
|
|
|
121
|
|
|
/** |
122
|
|
|
* @since 1.0 |
123
|
|
|
* |
124
|
|
|
* @param CompositePropertyTableDiffIterator $compositePropertyTableDiffIterator |
125
|
|
|
* |
126
|
|
|
* @return boolean|null |
127
|
|
|
*/ |
128
|
6 |
|
public function hasChangeToNotifyAbout( CompositePropertyTableDiffIterator $compositePropertyTableDiffIterator ) { |
129
|
|
|
|
130
|
6 |
|
$start = microtime( true ); |
131
|
6 |
|
$this->type = self::VALUE_CHANGE; |
132
|
|
|
|
133
|
6 |
|
$property = new DIProperty( |
134
|
|
|
PropertyRegistry::NOTIFICATIONS_ON |
135
|
6 |
|
); |
136
|
|
|
|
137
|
|
|
if ( |
138
|
6 |
|
$this->subject->getNamespace() === SMW_NS_PROPERTY || |
139
|
5 |
|
$this->subject->getNamespace() === NS_CATEGORY || |
140
|
6 |
|
$this->subject->getNamespace() === SMW_NS_CONCEPT ) { |
141
|
1 |
|
$this->type = self::SPECIFICATION_CHANGE; |
142
|
1 |
|
} |
143
|
|
|
|
144
|
6 |
|
foreach ( $compositePropertyTableDiffIterator->getTableChangeOps() as $tableChangeOp ) { |
145
|
|
|
|
146
|
|
|
// Skip the Modification date |
147
|
|
|
if ( |
148
|
6 |
|
( $this->getFixedPropertyValueBy( $tableChangeOp, 'key' ) === '_MDAT' ) || |
149
|
6 |
|
( $this->getFixedPropertyValueBy( $tableChangeOp, 'key' ) === '_REDI' ) ) { |
150
|
1 |
|
continue; |
151
|
|
|
} |
152
|
|
|
|
153
|
5 |
|
$this->doFilterOnFieldChangeOps( |
154
|
5 |
|
$property, |
155
|
5 |
|
$tableChangeOp, |
156
|
5 |
|
$tableChangeOp->getFieldChangeOps( 'insert' ) |
157
|
5 |
|
); |
158
|
|
|
|
159
|
5 |
|
$this->doFilterOnFieldChangeOps( |
160
|
5 |
|
$property, |
161
|
5 |
|
$tableChangeOp, |
162
|
5 |
|
$tableChangeOp->getFieldChangeOps( 'delete' ) |
163
|
5 |
|
); |
164
|
6 |
|
} |
165
|
|
|
|
166
|
6 |
|
wfDebugLog( 'smw', __METHOD__ . ' ' . $this->subject->getHash() . ' in procTime (sec): ' . round( ( microtime( true ) - $start ), 7 ) ); |
167
|
|
|
|
168
|
6 |
|
return $this->canNotify; |
169
|
|
|
} |
170
|
|
|
|
171
|
5 |
|
// 2.4 compat |
172
|
|
|
private function getFixedPropertyValueBy( $tableChangeOp, $key ) { |
173
|
5 |
|
return method_exists( $tableChangeOp, 'getFixedPropertyValueFor' ) ? $tableChangeOp->getFixedPropertyValueFor( $key ) : $tableChangeOp->getFixedPropertyValueBy( $key ); |
174
|
|
|
} |
175
|
|
|
|
176
|
|
|
private function doFilterOnFieldChangeOps( $property, $tableChangeOp, $fieldChangeOps ) { |
177
|
5 |
|
|
178
|
3 |
|
foreach ( $fieldChangeOps as $fieldChangeOp ) { |
179
|
|
|
|
180
|
|
|
// _INST is special since the p_id doesn't play a role |
181
|
3 |
|
// in determining the category page involved |
182
|
|
|
if ( $tableChangeOp->isFixedPropertyOp() ) { |
183
|
3 |
|
if ( $this->getFixedPropertyValueBy( $tableChangeOp, 'key' ) === '_INST' ) { |
184
|
|
|
$fieldChangeOp->set( 'p_id', $fieldChangeOp->get( 'o_id' ) ); |
185
|
|
|
} else { |
186
|
|
|
$fieldChangeOp->set( 'p_id', $this->getFixedPropertyValueBy( $tableChangeOp, 'p_id' ) ); |
187
|
5 |
|
} |
188
|
5 |
|
} |
189
|
5 |
|
|
190
|
|
|
// Get DI representation to build a DataValues that allows |
191
|
5 |
|
// to match/compare values to its serialization form |
192
|
|
|
$dataItem = $this->store->getObjectIds()->getDataItemById( |
|
|
|
|
193
|
|
|
$fieldChangeOp->get( 'p_id' ) |
194
|
|
|
); |
195
|
|
|
|
196
|
5 |
|
if ( $dataItem === null || $dataItem->getDBKey() === '' ) { |
197
|
1 |
|
continue; |
198
|
1 |
|
} |
199
|
1 |
|
|
200
|
|
|
// Shortcut! we know changes occurred on a property itself |
201
|
|
|
if ( $this->type === self::SPECIFICATION_CHANGE ) { |
202
|
4 |
|
$this->detectedProperties[$dataItem->getHash()] = $dataItem; |
203
|
4 |
|
$this->canNotify = true; |
204
|
4 |
|
continue; |
205
|
|
|
} |
206
|
4 |
|
|
207
|
5 |
|
$this->doCompareNotificationsOnValuesWithOps( |
208
|
5 |
|
$property, |
209
|
|
|
$dataItem, |
210
|
4 |
|
$fieldChangeOp |
211
|
|
|
); |
212
|
4 |
|
} |
213
|
|
|
} |
214
|
|
|
|
215
|
|
|
private function doCompareNotificationsOnValuesWithOps( $property, $dataItem, $fieldChangeOp ) { |
216
|
|
|
|
217
|
|
|
$cachedPropertyValuesPrefetcher = ApplicationFactory::getInstance()->getCachedPropertyValuesPrefetcher(); |
218
|
|
|
|
219
|
|
|
// Don't mix !! |
220
|
|
|
// Either use the plain annotation style via [[Notifications on:: ...]] OR |
221
|
|
|
// in case one wants to have a detection matrix use: |
222
|
4 |
|
// |
223
|
3 |
|
// {{#subobject: |
224
|
|
|
// |Notifications on=... |
225
|
|
|
// |Notifications to group=... |
226
|
|
|
// }} |
227
|
|
|
if ( ( $pv = $cachedPropertyValuesPrefetcher->getPropertyValues( $dataItem, $property ) ) !== array() ) { |
228
|
1 |
|
return $this->doCompareOnPropertyValues( $dataItem, $pv, $fieldChangeOp ); |
229
|
|
|
} |
230
|
1 |
|
|
231
|
|
|
// Get the whole property definitions and compare on subobjects that |
232
|
|
|
// contain `Notifications on:: ...` declarations |
233
|
|
|
$semanticData = $this->store->getSemanticData( |
234
|
|
|
$dataItem |
235
|
1 |
|
); |
236
|
1 |
|
|
237
|
1 |
|
// If matched then remember the subobjectName to later during the UserLocator |
238
|
1 |
|
// process to find out which groups on a particular SOBJ are to be |
239
|
1 |
|
// addressed |
240
|
1 |
|
foreach ( $semanticData->getSubSemanticData() as $subSemanticData ) { |
241
|
1 |
|
if ( $subSemanticData->hasProperty( $property ) ) { |
242
|
1 |
|
$this->doCompareOnPropertyValues( |
243
|
1 |
|
$dataItem, |
244
|
1 |
|
$subSemanticData->getPropertyValues( $property ), |
245
|
1 |
|
$fieldChangeOp, |
246
|
|
|
$subSemanticData->getSubject()->getSubobjectName() |
247
|
4 |
|
); |
248
|
4 |
|
} |
249
|
4 |
|
} |
250
|
4 |
|
} |
251
|
4 |
|
|
252
|
|
|
private function doCompareOnPropertyValues( $dataItem, $propertyValues, $fieldChangeOp, $subobjectName = null ) { |
253
|
4 |
|
foreach ( $propertyValues as $val ) { |
254
|
|
|
$this->doCompareFields( $val->getString(), $fieldChangeOp, $dataItem, $subobjectName ); |
255
|
4 |
|
} |
256
|
|
|
} |
257
|
|
|
|
258
|
4 |
|
private function doCompareFields( $value, $fieldChangeOp, $dataItem, $subobjectName ) { |
259
|
1 |
|
|
260
|
1 |
|
$hash = $dataItem->getHash(); |
261
|
1 |
|
|
262
|
4 |
|
// Any value |
263
|
|
|
if ( $value === '+' ) { |
264
|
|
|
$this->detectedProperties[$hash] = $dataItem; |
265
|
1 |
|
$this->subSemanticDataMatch[$hash][] = $subobjectName; |
266
|
|
|
$this->canNotify = true; |
267
|
1 |
|
} elseif ( $fieldChangeOp->has( 'o_serialized' ) || $fieldChangeOp->has( 'o_blob' ) ) { |
268
|
1 |
|
|
269
|
1 |
|
// Literal object entities |
270
|
|
|
if ( $fieldChangeOp->has( 'o_serialized' ) ) { |
271
|
|
|
$string = $fieldChangeOp->get( 'o_serialized' ); |
272
|
|
|
} elseif ( $fieldChangeOp->get( 'o_blob' ) ) { |
273
|
1 |
|
$string = $fieldChangeOp->get( 'o_blob' ); |
274
|
1 |
|
} else { |
275
|
|
|
$string = $fieldChangeOp->get( 'o_hash' ); |
276
|
1 |
|
} |
277
|
|
|
|
278
|
|
|
$dataValue = $this->dataValueFactory->newDataValueByProperty( |
279
|
|
|
DIProperty::newFromUserLabel( $dataItem->getDBKey() ), |
280
|
|
|
$value |
281
|
|
|
); |
282
|
|
|
|
283
|
1 |
|
/* |
|
|
|
|
284
|
1 |
|
if ( Hooks::run( 'SMW::Notifications::CanCreateNotificationEventOnDistinctValueChange', array( $this->subject, $this->agent, $value, $dataValue->getDataItem() ) ) === false ) { |
285
|
1 |
|
return; |
286
|
1 |
|
} |
287
|
1 |
|
*/ |
288
|
3 |
|
if ( $string === $dataValue->getDataItem()->getSerialization() ) { |
289
|
|
|
$this->detectedProperties[$hash] = $dataItem; |
290
|
|
|
$this->subSemanticDataMatch[$hash][] = $subobjectName; |
291
|
2 |
|
$this->canNotify = true; |
292
|
2 |
|
} |
293
|
2 |
|
} elseif ( $fieldChangeOp->has( 'o_id' ) ) { |
294
|
|
|
|
295
|
|
|
// Page object entities |
296
|
|
|
$oDataItem = $this->store->getObjectIds()->getDataItemById( |
|
|
|
|
297
|
|
|
$fieldChangeOp->get( 'o_id' ) |
298
|
|
|
); |
299
|
2 |
|
/* |
|
|
|
|
300
|
2 |
|
if ( Hooks::run( 'SMW::Notifications::CanCreateNotificationEventOnDistinctValueChange', array( $this->subject, $this->agent, $value, $oDataItem ) ) === false ) { |
301
|
2 |
|
return; |
302
|
2 |
|
} |
303
|
2 |
|
*/ |
304
|
2 |
|
if ( $value === str_replace( '_', ' ', $oDataItem->getDBKey() ) ) { |
305
|
4 |
|
$this->detectedProperties[$hash] = $dataItem; |
306
|
|
|
$this->subSemanticDataMatch[$hash][] = $subobjectName; |
307
|
|
|
$this->canNotify = true; |
308
|
|
|
} |
309
|
|
|
} |
310
|
|
|
} |
311
|
|
|
|
312
|
|
|
} |
313
|
|
|
|
If an expression can have both
false
, andnull
as possible values. It is generally a good practice to always use strict comparison to clearly distinguish between those two values.