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| 1 | <?php |
| 2 | |
| 3 | namespace Wikibase\Lexeme\Domain\Merge; |
| 4 | |
| 5 | use Wikibase\DataModel\Entity\EntityId; |
| 6 | use Wikibase\Lexeme\Domain\EntityReferenceExtractors\LexemeStatementEntityReferenceExtractor; |
| 7 | use Wikibase\Lexeme\Domain\Model\Lexeme; |
| 8 | use Wikibase\Lexeme\Domain\Model\LexemeId; |
| 9 | use Wikibase\Lexeme\Domain\Model\LexemeSubEntityId; |
| 10 | use Wikimedia\Assert\Assert; |
| 11 | |
| 12 | /** |
| 13 | * @license GPL-2.0-or-later |
| 14 | */ |
| 15 | class NoCrossReferencingLexemeStatements { |
| 16 | |
| 17 | /** |
| 18 | * @var array[] All violations from all validations of this objects life. |
| 19 | */ |
| 20 | private $violations = []; |
| 21 | |
| 22 | /** |
| 23 | * @var LexemeStatementEntityReferenceExtractor |
| 24 | */ |
| 25 | private $refExtractor; |
| 26 | |
| 27 | public function __construct( LexemeStatementEntityReferenceExtractor $refExtractor ) { |
| 28 | $this->refExtractor = $refExtractor; |
| 29 | } |
| 30 | |
| 31 | /** |
| 32 | * Validate the two Lexemes and collect the violations along with any violations from |
| 33 | * previous calls. |
| 34 | * @param Lexeme $one |
| 35 | * @param Lexeme $two |
| 36 | * @return bool true if valid |
| 37 | */ |
| 38 | public function validate( Lexeme $one, Lexeme $two ) { |
| 39 | $oneId = $one->getId(); |
| 40 | $twoId = $two->getId(); |
| 41 | Assert::parameter( $oneId !== null, '$one', 'must have a lexeme ID' ); |
| 42 | Assert::parameter( $twoId !== null, '$two', 'must have a lexeme ID' ); |
| 43 | |
| 44 | $oneRefIds = $this->refExtractor->extractEntityIds( $one ); |
| 45 | $twoRefIds = $this->refExtractor->extractEntityIds( $two ); |
| 46 | |
| 47 | $this->collectViolations( $twoId, $twoRefIds, $oneId ); |
| 48 | $this->collectViolations( $oneId, $oneRefIds, $twoId ); |
| 49 | |
| 50 | return $this->violations === []; |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * @param LexemeId $entityIdsFrom The LexemeId that the $entityIds references are from |
| 55 | * @param EntityId[] $entityIds The list of EntityIds that we are checking |
| 56 | * @param LexemeId $notToReference The LexemeId that when referenced will cause violations |
| 57 | */ |
| 58 | private function collectViolations( |
| 59 | LexemeId $entityIdsFrom, |
| 60 | array $entityIds, |
| 61 | LexemeId $notToReference |
| 62 | ) { |
| 63 | foreach ( $entityIds as $entityId ) { |
| 64 | if ( |
| 65 | ( $entityId instanceof LexemeId && $entityId->equals( $notToReference ) ) || |
| 66 | ( |
| 67 | $entityId instanceof LexemeSubEntityId && |
| 68 | $entityId->getLexemeId()->equals( $notToReference ) |
| 69 | ) |
| 70 | ) { |
| 71 | $this->violations[] = [ $entityIdsFrom, $entityId, $notToReference ]; |
| 72 | } |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * Get violations of all validate() calls. |
| 78 | * |
| 79 | * @return array[] with each element containing: |
| 80 | * [ LexemeId $source, EntityId $reference, LexemeId $target ] |
| 81 | * Where: |
| 82 | * - $source is the source Lexeme of the reference |
| 83 | * - $reference is the reference to $target |
| 84 | * - $target is the LexemeId being referenced |
| 85 | */ |
| 86 | public function getViolations() { |
| 87 | return $this->violations; |
| 88 | } |
| 89 | |
| 90 | } |