mongodb: fix aggregation regex

opencb · Dec 13, 2024 · a073e84 · a073e84
1 parent eb5b519
commit a073e84
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/...tastore-mongodb/src/main/java/org/opencb/commons/datastore/mongodb/MongoDBQueryUtils.java b/...tastore-mongodb/src/main/java/org/opencb/commons/datastore/mongodb/MongoDBQueryUtils.java
@@ -783,7 +783,12 @@ private static List<Bson> createFacet(Bson query, List<String> facetFields) {
     }
 
     private static Facet getMongoDBFacet(String groupField, Accumulator accumulator, String accumulatorField, List<Double> boundaries) {
-        String accumulatorId = StringUtils.isNotEmpty(accumulatorField) ? "$" + accumulatorField : "$" + groupField;
+        String accumulatorId;
+        if (accumulator == count) {
+            accumulatorId = StringUtils.isNotEmpty(accumulatorField) ? "$" + accumulatorField : "1";
+        } else {
+            accumulatorId = StringUtils.isNotEmpty(accumulatorField) ? "$" + accumulatorField : "$" + groupField;
+        }
 
         Facet facet;
         switch (accumulator) {