fix: mongodb@4 compatibility support (#8412)

Add support for mongodb 4.2 Closes: 8146
typeorm · Dec 11, 2021 · 531013b · 531013b
1 parent 90a8deb
commit 531013b
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/entity-manager/MongoEntityManager.ts b/src/entity-manager/MongoEntityManager.ts
@@ -683,7 +683,8 @@ export class MongoEntityManager extends EntityManager {
      * Overrides cursor's toArray and next methods to convert results to entity automatically.
      */
     protected applyEntityTransformationToCursor<Entity>(metadata: EntityMetadata, cursor: Cursor<Entity> | AggregationCursor<Entity>) {
-        const ParentCursor = PlatformTools.load("mongodb").Cursor;
+        // mongdb-3.7 exports Cursor, mongodb-4.2 exports FindCursor, provide support for both.
+        const ParentCursor = PlatformTools.load("mongodb").Cursor || PlatformTools.load("mongodb").FindCursor;
         const queryRunner = this.mongoQueryRunner;
         cursor.toArray = function (callback?: MongoCallback<Entity[]>) {
             if (callback) {