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| 1 | <?php |
| 2 | |
| 3 | namespace CirrusSearch\Query; |
| 4 | |
| 5 | use CirrusSearch\CrossSearchStrategy; |
| 6 | use CirrusSearch\Parser\AST\KeywordFeatureNode; |
| 7 | use CirrusSearch\Query\Builder\QueryBuildingContext; |
| 8 | use CirrusSearch\Search\SearchContext; |
| 9 | use Elastica\Query\AbstractQuery; |
| 10 | |
| 11 | /** |
| 12 | * Filters the result set based on pages containing outgoing wiki links to the |
| 13 | * provided page title. |
| 14 | * |
| 15 | * Examples: |
| 16 | * linksto:"Wake Island" |
| 17 | * linksto:Wake_Island |
| 18 | * linksto:Shanghai |
| 19 | */ |
| 20 | class LinksToFeature extends SimpleKeywordFeature implements FilterQueryFeature { |
| 21 | /** |
| 22 | * @return string[] |
| 23 | */ |
| 24 | protected function getKeywords() { |
| 25 | return [ 'linksto' ]; |
| 26 | } |
| 27 | |
| 28 | /** |
| 29 | * @param KeywordFeatureNode $node |
| 30 | * @return CrossSearchStrategy |
| 31 | */ |
| 32 | public function getCrossSearchStrategy( KeywordFeatureNode $node ) { |
| 33 | return CrossSearchStrategy::allWikisStrategy(); |
| 34 | } |
| 35 | |
| 36 | /** |
| 37 | * @param SearchContext $context |
| 38 | * @param string $key The keyword |
| 39 | * @param string $value The value attached to the keyword with quotes stripped |
| 40 | * @param string $quotedValue The original value in the search string, including quotes if used |
| 41 | * @param bool $negated Is the search negated? Not used to generate the returned AbstractQuery, |
| 42 | * that will be negated as necessary. Used for any other building/context necessary. |
| 43 | * @return array Two element array, first an AbstractQuery or null to apply to the |
| 44 | * query. Second a boolean indicating if the quotedValue should be kept in the search |
| 45 | * string. |
| 46 | */ |
| 47 | protected function doApply( SearchContext $context, $key, $value, $quotedValue, $negated ) { |
| 48 | return [ $this->doGetFilterQuery( $value ), false ]; |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * @param KeywordFeatureNode $node |
| 53 | * @param QueryBuildingContext $context |
| 54 | * @return AbstractQuery|null |
| 55 | */ |
| 56 | public function getFilterQuery( KeywordFeatureNode $node, QueryBuildingContext $context ) { |
| 57 | return $this->doGetFilterQuery( $node->getValue() ); |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * @param string $value |
| 62 | * @return \Elastica\Query\MatchQuery |
| 63 | */ |
| 64 | protected function doGetFilterQuery( $value ) { |
| 65 | return QueryHelper::matchPage( 'outgoing_link', $value, true ); |
| 66 | } |
| 67 | |
| 68 | } |