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| 1 | <?php |
| 2 | |
| 3 | namespace Wikibase\Lexeme\Domain\Merge; |
| 4 | |
| 5 | use Wikibase\DataModel\Services\Statement\GuidGenerator; |
| 6 | use Wikibase\Lexeme\DataAccess\ChangeOp\ChangeOpFormAdd; |
| 7 | use Wikibase\Lexeme\DataAccess\ChangeOp\ChangeOpFormClone; |
| 8 | use Wikibase\Lexeme\Domain\Merge\Validator\FormMergeability; |
| 9 | use Wikibase\Lexeme\Domain\Model\Form; |
| 10 | use Wikibase\Lexeme\Domain\Model\Lexeme; |
| 11 | use Wikibase\Repo\ChangeOp\ChangeOps; |
| 12 | use Wikibase\Repo\Merge\StatementsMerger; |
| 13 | |
| 14 | /** |
| 15 | * @license GPL-2.0-or-later |
| 16 | */ |
| 17 | class LexemeFormsMerger { |
| 18 | |
| 19 | /** |
| 20 | * @var StatementsMerger |
| 21 | */ |
| 22 | private $statementsMerger; |
| 23 | |
| 24 | /** |
| 25 | * @var GuidGenerator |
| 26 | */ |
| 27 | private $guidGenerator; |
| 28 | |
| 29 | public function __construct( |
| 30 | StatementsMerger $statementsMerger, |
| 31 | GuidGenerator $guidGenerator |
| 32 | ) { |
| 33 | $this->statementsMerger = $statementsMerger; |
| 34 | $this->guidGenerator = $guidGenerator; |
| 35 | } |
| 36 | |
| 37 | /** |
| 38 | * This receives Lexeme, not Form as it needs awareness of the Lexeme (id) |
| 39 | * |
| 40 | * @param Lexeme $source |
| 41 | * @param Lexeme $target Will be modified by reference |
| 42 | */ |
| 43 | public function merge( Lexeme $source, Lexeme $target ) { |
| 44 | $formMergeability = new FormMergeability(); |
| 45 | |
| 46 | $changeOps = new ChangeOps(); |
| 47 | |
| 48 | foreach ( $source->getForms()->toArray() as $sourceForm ) { |
| 49 | /** @var $sourceForm Form */ |
| 50 | foreach ( $target->getForms()->toArray() as $targetForm ) { |
| 51 | /** @var $targetForm Form */ |
| 52 | if ( $formMergeability->validate( $sourceForm, $targetForm ) ) { |
| 53 | $this->mergeForms( $sourceForm, $targetForm ); |
| 54 | continue 2; // source form will only be merged into first matching target form |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | $changeOps->add( |
| 59 | new ChangeOpFormAdd( |
| 60 | new ChangeOpFormClone( $sourceForm, $this->guidGenerator ) |
| 61 | ) |
| 62 | ); |
| 63 | } |
| 64 | |
| 65 | $changeOps->apply( $target ); |
| 66 | } |
| 67 | |
| 68 | private function mergeForms( Form $source, Form $target ) { |
| 69 | $target->getRepresentations()->addAll( $source->getRepresentations() ); |
| 70 | $this->statementsMerger->merge( $source, $target ); |
| 71 | } |
| 72 | |
| 73 | } |