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<?php |
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namespace Wikibase\DataModel\Services\Diff; |
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use Diff\DiffOp\AtomicDiffOp; |
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use Diff\DiffOp\Diff\Diff; |
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use Diff\DiffOp\DiffOpAdd; |
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use Diff\DiffOp\DiffOpChange; |
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use Diff\DiffOp\DiffOpRemove; |
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use Diff\Patcher\PatcherException; |
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use Wikibase\DataModel\Term\TermList; |
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/** |
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* @since 3.6 |
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* |
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* @license GPL-2.0+ |
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* @author Jeroen De Dauw < [email protected] > |
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* @author Thiemo Mättig |
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*/ |
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class TermListPatcher { |
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/** |
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* @since 3.6 |
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* |
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* @param TermList $terms |
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* @param Diff $patch |
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* |
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* @throws PatcherException |
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*/ |
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public function patchTermList( TermList $terms, Diff $patch ) { |
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foreach ( $patch as $lang => $diffOp ) { |
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$this->patchTerm( $terms, $lang, $diffOp ); |
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} |
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} |
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/** |
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* @see MapPatcher |
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* |
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* @param TermList $terms |
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* @param string $lang |
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* @param AtomicDiffOp $diffOp |
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* |
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* @throws PatcherException |
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*/ |
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private function patchTerm( TermList $terms, $lang, AtomicDiffOp $diffOp ) { |
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$hasLang = $terms->hasTermForLanguage( $lang ); |
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switch ( true ) { |
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case $diffOp instanceof DiffOpAdd: |
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/** @var $diffOp DiffOpAdd */ |
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if ( !$hasLang ) { |
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$terms->setTextForLanguage( $lang, $diffOp->getNewValue() ); |
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} |
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break; |
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case $diffOp instanceof DiffOpChange: |
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/** @var $diffOp DiffOpChange */ |
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if ( $hasLang |
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&& $terms->getByLanguage( $lang )->getText() === $diffOp->getOldValue() |
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) { |
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$terms->setTextForLanguage( $lang, $diffOp->getNewValue() ); |
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} |
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break; |
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case $diffOp instanceof DiffOpRemove: |
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/** @var $diffOp DiffOpRemove */ |
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if ( $hasLang |
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&& $terms->getByLanguage( $lang )->getText() === $diffOp->getOldValue() |
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) { |
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$terms->removeByLanguage( $lang ); |
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} |
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break; |
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default: |
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throw new PatcherException( 'Invalid terms diff' ); |
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} |
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} |
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} |
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wmde /
WikibaseDataModelServices
