X-Git-Url: https://git.heureux-cyclage.org/?a=blobdiff_plain;f=includes%2Fsearch%2FSearchIndexFieldDefinition.php;h=e3e01e8b6029549d681b1210e3ca14de642b5aee;hb=509c8d6e378a8decae43dcb27276ddae40dc1143;hp=8a06b65ed7bd3e8aebfafae7e6ccd1ff24e407c0;hpb=8a43c5afdf0736f5c60ec587da5c230cf53a8ab1;p=lhc%2Fweb%2Fwiklou.git

diff --git a/includes/search/SearchIndexFieldDefinition.php b/includes/search/SearchIndexFieldDefinition.php
index 8a06b65ed7..e3e01e8b60 100644
--- a/includes/search/SearchIndexFieldDefinition.php
+++ b/includes/search/SearchIndexFieldDefinition.php
@@ -33,6 +33,11 @@ abstract class SearchIndexFieldDefinition implements SearchIndexField {
 	 */
 	protected $subfields = [];
 
+	/**
+	 * @var callable
+	 */
+	private $mergeCallback;
+
 	/**
 	 * SearchIndexFieldDefinition constructor.
 	 * @param string $name Field name
@@ -91,9 +96,12 @@ abstract class SearchIndexFieldDefinition implements SearchIndexField {
 	 * @return SearchIndexField|false New definition or false if not mergeable.
 	 */
 	public function merge( SearchIndexField $that ) {
+		if ( !empty( $this->mergeCallback ) ) {
+			return call_user_func( $this->mergeCallback, $this, $that );
+		}
 		// TODO: which definitions may be compatible?
 		if ( ( $that instanceof self ) && $this->type === $that->type &&
-		     $this->flags === $that->flags && $this->type !== self::INDEX_TYPE_NESTED
+			$this->flags === $that->flags && $this->type !== self::INDEX_TYPE_NESTED
 		) {
 			return $that;
 		}
@@ -125,4 +133,18 @@ abstract class SearchIndexFieldDefinition implements SearchIndexField {
 	 */
 	abstract public function getMapping( SearchEngine $engine );
 
+	/**
+	 * Set field-specific merge strategy.
+	 * @param callable $callback
+	 */
+	public function setMergeCallback( $callback ) {
+		$this->mergeCallback = $callback;
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	public function getEngineHints( SearchEngine $engine ) {
+		return [];
+	}
 }