feat: Add support for MongoDB 7 (#8761)

BREAKING CHANGE: `Parse.Query` no longer supports the BSON type `code`; although this feature was never officially documented, its removal is announced as a breaking change to protect deployments where it might be in use.

src/Adapters/Storage/Mongo/MongoCollection.js

@@ -160,18 +160,10 @@ export default class MongoCollection {
   }
 
   _ensureSparseUniqueIndexInBackground(indexRequest) {
-    return new Promise((resolve, reject) => {
-      this._mongoCollection.createIndex(
-        indexRequest,
-        { unique: true, background: true, sparse: true },
-        error => {
-          if (error) {
-            reject(error);
-          } else {
-            resolve();
-          }
-        }
-      );
+    return this._mongoCollection.createIndex(indexRequest, {
+      unique: true,
+      background: true,
+      sparse: true,
     });
   }
 

src/Adapters/Storage/Mongo/MongoStorageAdapter.js

@@ -172,7 +172,6 @@ export class MongoStorageAdapter implements StorageAdapter {
     // parsing and re-formatting causes the auth value (if there) to get URI
     // encoded
     const encodedUri = formatUrl(parseUrl(this._uri));
-
     this.connectionPromise = MongoClient.connect(encodedUri, this._mongoOptions)
       .then(client => {
         // Starting mongoDB 3.0, the MongoClient.connect don't return a DB anymore but a client
@@ -687,13 +686,8 @@ export class MongoStorageAdapter implements StorageAdapter {
     };
 
     return this._adaptiveCollection(className)
-      .then(
-        collection =>
-          new Promise((resolve, reject) =>
-            collection._mongoCollection.createIndex(indexCreationRequest, indexOptions, error =>
-              error ? reject(error) : resolve()
-            )
-          )
+      .then(collection =>
+        collection._mongoCollection.createIndex(indexCreationRequest, indexOptions)
       )
       .catch(err => this.handleError(err));
   }

src/Adapters/Storage/Mongo/MongoTransform.js

@@ -457,6 +457,7 @@ const parseObjectKeyValueToMongoObjectKeyValue = (restKey, restValue, schema) =>
     );
   }
   value = mapValues(restValue, transformInteriorValue);
+
   return { key: restKey, value };
 };