Adds support for Long and Double mongodb types (fixes #1316) (#1470)

* Adds support for Long and Double mongodb types (fixes #1316)

* Use bigger numbers

spec/transform.spec.js

@@ -3,6 +3,7 @@
 
 let transform = require('../src/transform');
 let dd = require('deep-diff');
+let mongodb = require('mongodb');
 
 var dummySchema = {
     data: {},
@@ -241,4 +242,15 @@ describe('transform schema key changes', () => {
     done();
   });
 
+  it('untransforms mongodb number types', (done) => {
+    var input = {
+      long: mongodb.Long.fromNumber(Number.MAX_SAFE_INTEGER),
+      double: new mongodb.Double(Number.MAX_VALUE)
+    }
+    var output = transform.untransformObject(dummySchema, null, input);
+    expect(output.long).toBe(Number.MAX_SAFE_INTEGER);
+    expect(output.double).toBe(Number.MAX_VALUE);
+    done();
+  });
+
 });

src/transform.js

@@ -654,6 +654,14 @@ function untransformObject(schema, className, mongoObject, isNestedObject = fals
       return Parse._encode(mongoObject);
     }
 
+    if (mongoObject instanceof mongodb.Long) {
+      return mongoObject.toNumber();
+    }
+
+    if (mongoObject instanceof mongodb.Double) {
+      return mongoObject.value;
+    }
+
     if (BytesCoder.isValidDatabaseObject(mongoObject)) {
       return BytesCoder.databaseToJSON(mongoObject);
     }