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<?php |
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namespace Wikibase\DataModel\Services\Diff\Internal; |
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use Diff\DiffOp\Diff\Diff; |
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use Diff\DiffOp\DiffOp; |
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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 InvalidArgumentException; |
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use Wikibase\DataModel\Statement\Statement; |
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use Wikibase\DataModel\Statement\StatementList; |
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/** |
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* TODO: Class must be public. |
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* TODO: Should this support actual edit conflict detection? |
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* |
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* Package private. |
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* |
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* @since 1.0 |
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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 StatementListPatcher { |
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/** |
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* @since 3.6 |
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* |
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* @param StatementList $statements |
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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 patchStatementList( StatementList $statements, Diff $patch ) { |
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/** @var DiffOp $diffOp */ |
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foreach ( $patch as $diffOp ) { |
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switch ( true ) { |
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case $diffOp instanceof DiffOpAdd: |
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/** @var DiffOpAdd $diffOp */ |
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$statements->addStatement( $diffOp->getNewValue() ); |
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break; |
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2 |
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case $diffOp instanceof DiffOpChange: |
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/** @var DiffOpChange $diffOp */ |
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/** @var Statement $statement */ |
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$statement = $diffOp->getOldValue(); |
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$statements->removeStatementsWithGuid( $statement->getGuid() ); |
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$statements->addStatement( $diffOp->getNewValue() ); |
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break; |
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case $diffOp instanceof DiffOpRemove: |
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/** @var DiffOpRemove $diffOp */ |
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/** @var Statement $statement */ |
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$statement = $diffOp->getOldValue(); |
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$statements->removeStatementsWithGuid( $statement->getGuid() ); |
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break; |
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default: |
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throw new PatcherException( 'Invalid statement list diff' ); |
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} |
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} |
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} |
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/** |
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* @deprecated since 3.6, use patchStatementList instead |
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* |
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* @param StatementList $statements |
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* @param Diff $patch |
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* |
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* @throws InvalidArgumentException |
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* @return StatementList |
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*/ |
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public function getPatchedStatementList( StatementList $statements, Diff $patch ) { |
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$patched = clone $statements; |
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$this->patchStatementList( $patched, $patch ); |
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return $patched; |
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} |
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} |
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wmde /
WikibaseDataModelServices
