pkp#8710 Added sort by search ranking

jonasraoni · Apr 12, 2023 · 1d2ccad · 1d2ccad
1 parent be9d65a
commit 1d2ccad
Showing 1 changed file with 18 additions and 0 deletions.
diff --git a/classes/submission/Collector.php b/classes/submission/Collector.php
@@ -39,6 +39,7 @@ abstract class Collector implements CollectorInterface
     public const ORDERBY_LAST_MODIFIED = 'lastModified';
     public const ORDERBY_SEQUENCE = 'sequence';
     public const ORDERBY_TITLE = 'title';
+    public const ORDERBY_SEARCH_RANKING = 'ranking';
     public const ORDER_DIR_ASC = 'ASC';
     public const ORDER_DIR_DESC = 'DESC';
 
@@ -316,6 +317,23 @@ public function getQueryBuilder(): Builder
                 $q->addSelect([DB::raw($coalesceTitles)]);
                 $q->orderBy(DB::raw($coalesceTitles), $this->orderDirection);
                 break;
+            case self::ORDERBY_SEARCH_RANKING:
+                if (!$keywords->count()) {
+                    $q->orderBy('s.date_submitted', $this->orderDirection);
+                    break;
+                }
+                // Retrieves the number of matches for all keywords
+                $orderByMatchCount = DB::table('submission_search_objects', 'sso')
+                    ->join("submission_search_object_keywords AS ssok", "ssok.object_id", '=', 'sso.object_id')
+                    ->join("submission_search_keyword_list AS sskl", "sskl.keyword_id", '=', "ssok.keyword_id")
+                    ->whereIn("sskl.keyword_text", $keywords->map(fn () => DB::raw("CONCAT(LOWER(?), '%')")))->addBinding($keywords->toArray())
+                    ->whereColumn('s.submission_id', '=', 'sso.submission_id')
+                    ->selectRaw('COUNT(0)');
+                // Retrieves the number of distinct matched keywords
+                $orderByDistinctKeyword = (clone $orderByMatchCount)->groupBy('sskl.keyword_id');
+                $q->orderBy($orderByDistinctKeyword, $this->orderDirection)
+                    ->orderBy($orderByMatchCount, $this->orderDirection);
+                break;
             case self::ORDERBY_DATE_SUBMITTED:
             default:
                 $q->orderBy('s.date_submitted', $this->orderDirection);